A one-dimensional phase-scan waveguide slot antenna based on tunable reflective phase shifter

Abstract

The application discloses a one-dimensional phase scanning waveguide slot antenna array based on an adjustable reflective phase shifter, wherein a TE10 mode signal is converted into four equal-amplitude and in-phase TEM mode signals by a one-to-four coaxial feeding layer and transmitted to an adjustable reflective phase shifter group, the adjustable reflective phase shifter group adjusts the phases of the four TEM mode signals, generates four TEM mode signals and transmits the four TEM mode signals to a double-ridge-to-coaxial layer, the double-ridge-to-coaxial layer converts the four TEM mode signals into four TE10 mode signals through a coaxial-to-double-ridge structure and outputs the four TE10 mode signals to a single-ridge waveguide transmission layer, the single-ridge waveguide transmission layer transmits the four TE10 mode signals to a slot radiation layer through a double-ridge waveguide-to-single-ridge waveguide structure, the slot radiation layer radiates the four TE10 mode signals to free space, and the slot radiation layer, the single-ridge waveguide transmission layer, the double-ridge-to-coaxial layer, the adjustable reflective phase shifter group and the one-to-four coaxial feeding layer are all made of full metal; the one-dimensional phase scanning waveguide slot antenna array based on the adjustable reflective phase shifter has the advantages of simple structure, low cost, large-angle scanning and high gain.

Description

Technical Field

[0001] This invention relates to a one-dimensional phase-sweep waveguide slot antenna array, and more particularly to a one-dimensional phase-sweep waveguide slot antenna array based on an adjustable reflective phase shifter. Background Technology

[0002] One-dimensional phase-scanned waveguide slot antenna arrays are an important part of radar technology and modern communication technology, and one of the key technologies of next-generation antenna arrays. They utilize antenna elements to form a linear array to create a beam, and then combine these linear arrays into a surface array to perform phase scanning in one dimension. This results in flexible and controllable beamforming and low sidelobe levels. Currently, one-dimensional phase-scanned waveguide slot antenna arrays are implemented using two methods: dielectric and metallic. One-dimensional phase-scanned waveguide slot antenna arrays using dielectric materials are smaller and lighter, and easier to integrate with active circuits to achieve antenna beam scanning. However, one-dimensional phase-scanned waveguide slot antenna arrays using dielectric materials have higher losses, especially for high-frequency signals, resulting in low antenna radiation efficiency and failing to meet high-gain requirements.

[0003] All-metal one-dimensional phase-scanning waveguide slot antenna arrays possess low loss and high radiation efficiency. The antenna gain can be increased by expanding the antenna array surface, achieving a high-gain effect. Existing all-metal one-dimensional phase-scanning waveguide slot antenna arrays typically employ an E-plane rectangular waveguide 1-to-2 power divider for center feeding, then radiation is achieved through slots in the E-plane rectangular waveguide wall. Active phase control elements such as TR modules and digital phase shifters are added to the end of the E-plane rectangular waveguide 1-to-2 power divider to control the phase of the input port, thus achieving one-dimensional beam scanning. Existing all-metal one-dimensional phase-scanning waveguide slot antenna arrays have two main drawbacks: First, using rectangular waveguides results in larger antenna element sizes, making it difficult to assemble an array with 0.5 times the free-space wavelength, leading to a smaller beam scanning angle. Second, using TR modules and digital phase shifters for active phase control elements to achieve antenna beam scanning involves complex switching between active and passive antenna connections, resulting in a complex design structure and higher cost. For example, Chinese invention patent CN216850344 U discloses a ridge waveguide one-dimensional phased array antenna, mainly composed of a ridge waveguide slot linear array, a ridge waveguide ET power divider, a coaxial connector, and a TR assembly. The ridge waveguide ET power divider is used to feed the center of the ridge waveguide slot linear array, and the ridge waveguide ET power divider is connected to the TR assembly via the coaxial connector. Although this ridge waveguide one-dimensional phased array antenna has high antenna radiation efficiency, it still has some problems. First, when the antenna beam scanning angle reaches 44°, the gain drops by 7.2dB compared to when the antenna beam points to 0°. Large-angle scanning and high gain cannot be achieved simultaneously. Second, using the TR assembly to control the antenna beam scanning results in a complex design structure and high cost.

[0004] Chinese invention patent CN109546360 A discloses a Ku-band active phase-scanning antenna based on a ridge waveguide slot array. It includes an antenna array composed of a linear array of 56 ridge waveguide wide-side longitudinal slots, a sum and difference power divider for controlling beam scanning, and a T / R component. It achieves a relative bandwidth of 15% using a parallel-feed network. However, its electronically controlled beam scanning is only ±15°, which cannot achieve large-angle scanning. Moreover, it integrates multiple T / R components, digital phase shifters, and digital attenuators to control beam scanning, resulting in a complex design and high cost. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a one-dimensional phase-scanning waveguide slot antenna array based on an adjustable reflective phase shifter that is simple in structure, low in cost, and capable of both large-angle scanning and high gain.

[0006] The technical solution adopted by this invention to solve the above-mentioned technical problems is as follows: a one-dimensional phase-sweeping waveguide slot antenna array based on an adjustable reflective phase shifter, comprising a slot radiating layer, a single-ridge waveguide transmission layer, a double-ridge coaxial layer, an adjustable reflective phase shifter group, and a 1-to-4 coaxial feed layer; the 1-to-4 coaxial feed layer is used to receive external TE10 mode signals and convert the external TE10 mode signals into four equal-amplitude and in-phase TEM mode signals before transmitting them to the adjustable reflective phase shifter group; the adjustable reflective phase shifter group is used to adjust the phase of the four TEM mode signals transmitted from the 1-to-4 coaxial feed layer to generate four TEM mode signals which are then transmitted to the double-ridge coaxial layer; the double-ridge coaxial layer... The coaxial layer is used to convert the four TEM mode signals transmitted to it by the reflective phase shifter group into four TE10 mode signals through a coaxial-to-double-ridge structure and output them to the single-ridge waveguide transmission layer. The single-ridge waveguide transmission layer is used to transmit the four TE10 mode signals output to it by the double-ridge-to-coaxial layer to the slot radiation layer through a double-ridge waveguide-to-single-ridge waveguide structure. The slot radiation layer is used to radiate the four TE10 mode signals transmitted to it by the single-ridge waveguide transmission layer into free space. The slot radiation layer, the single-ridge waveguide transmission layer, the double-ridge-to-coaxial layer, the adjustable reflective phase shifter group, and the one-to-four coaxial feed layer are all made of all-metal.

[0007] The slit radiation layer comprises a first rectangular metal block and a group of radiating slits. The length of the first rectangular metal block is defined as the left-right direction, the width as the front-back direction, and the height as the up-down direction. The radiating slit group comprises four radiating slit units of identical structure and size, arranged sequentially from front to back. Each radiating slit unit includes 48 radiating slits for radiating TE10 mode signals transmitted to it into free space. Each radiating slit is a rectangular slot that penetrates the first rectangular metal block vertically. The length of each radiating slit is along the left-right direction, and the width is along the right-back direction. In the front-back direction, if each of the aforementioned radial slot units is translated along the front-back direction, its 48 radial slots can completely overlap with the 48 radial slots of the other three radial slot units. In each of the aforementioned radial slot units, the 48 radial slots are distributed at intervals from left to right. In every two adjacent radial slots, the distance between the plane of symmetry along the front-back direction of the left radial slot and the plane of symmetry along the front-back direction of the right radial slot are equal. The 48 radial slots are numbered from 1 to 48 from left to right, referred to as the 1st to 48th radial slots, and the 15th to... The 33rd radial slit has an equal length in the left-right direction; the lengths of the 1st to the 14th and the 34th to the 48th radial slits are equal in the left-right direction; the widths of the 1st to the 48th radial slits are equal in the front-back direction; the distance between the center of the kth radial slit and the center of the (k+1)th radial slit is less than the distance between the center of the (k+1)th radial slit and the center of the (k+2)th radial slit, where k = 1, 2, ..., 23; the distance between the center of the mth radial slit and the center of the (m-1)th radial slit... The distance between the centers of the slits is less than the distance between the centers of the (m-1)th radiating slit and the (m-1)th radiating slit, where m = 48, 47, ..., 26; in each radiating slit unit, the rectangular area enclosed by the plane containing the upper end face of the 48 radiating slits, the plane containing the lower end face of the 48 radiating slits, the plane containing the left end face of the 1st radiating slit, the plane containing the right end face of the 48th radiating slit, the plane containing the front face of the 48 radiating slits whose front end face is located at the foremost side, and the plane containing the rear end face of the 48 radiating slits whose rear end face is located at the rearmost side is used as the enclosing area of ​​the radiating slit unit.

[0008] The single-ridge waveguide transmission layer includes a second rectangular metal block, four single-ridge rectangular channels with identical structural dimensions, and four first double-ridge waveguide channels with identical structural dimensions. The second rectangular metal block is located below the first rectangular metal block. The front end face of the second rectangular metal block is on the same plane as the front end face of the first rectangular metal block, the rear end face of the second rectangular metal block is on the same plane as the rear end face of the first rectangular metal block, the left end face of the second rectangular metal block is on the same plane as the left end face of the first rectangular metal block, the right end face of the second rectangular metal block is on the same plane as the right end face of the first rectangular metal block, and the upper end face of the second rectangular metal block is on the same plane as the first rectangular metal block. The lower end face of the first rectangular metal block is fixedly connected and in a fitted state; each of the single-ridge rectangular channels includes a first rectangular cavity, a first metal strip, a second metal strip, a third metal strip, a fourth metal strip, a fifth metal strip, a sixth metal strip, a seventh metal strip, and an eighth metal strip. The first rectangular cavity is formed on the second rectangular metal block. The length direction of the first rectangular cavity is along the left-right direction, the width direction is along the front-back direction, and the height direction is along the up-down direction. The upper end face of the first rectangular cavity and the upper end face of the second rectangular metal block are located on the same plane. The lower end face of the first rectangular cavity is located above the lower end face of the second rectangular metal block, and the front end face of the first rectangular cavity is located in front of the second rectangular metal block. On the rear side of the end face, the left end face of the first rectangular cavity is located to the right of the left end face of the second rectangular metal block, and the right end face of the first rectangular cavity is located to the left of the right end face of the second rectangular metal block. The distance between the left end face of the first rectangular cavity and the left end face of the second rectangular metal block is equal to the distance between the right end face of the first rectangular cavity and the right end face of the second rectangular metal block. The first metal strip, the second metal strip, the third metal strip, the fourth metal strip, the fifth metal strip, the sixth metal strip, the seventh metal strip, and the eighth metal strip are all rectangular strips and are respectively located within the first rectangular cavity. The first metal strip and the second metal strip... The length of the strip is along the front-to-back direction, the width is along the left-to-right direction, and the height is along the top-to-bottom direction. The upper end face of the first metal strip is flush with the upper end face of the first rectangular cavity, the front end face of the first metal strip is flush with the front end face of the first rectangular cavity, and it is fixed to the second rectangular metal block. The rear end face of the first metal strip is flush with the rear end face of the first rectangular cavity and it is fixed to the second rectangular metal block. The width of the first metal strip is greater than the width of the second metal strip. The heights of the first and second metal strips are equal. The second metal strip is located below the first metal strip. The upper end face of the second metal strip is connected to and in contact with the lower end face of the first metal strip.The front end face of the second metal strip is flush with the front end face of the first rectangular cavity and is fixed to the second rectangular metal block. The rear end face of the second metal strip is flush with the rear end face of the first rectangular cavity and is fixed to the second rectangular metal block. The symmetrical planes of the first metal strip, the second metal strip, and the first rectangular cavity along the front-back direction are located on the same plane. The length directions of the third, fourth, fifth, sixth, seventh, and eighth metal strips are all along the left-right direction, their width directions are all along the front-back direction, and their height directions are all along the up-down direction. The third metal strip has the shortest length. The length of the fourth metal strip is less than the length of the fifth metal strip, and the length of the fifth metal strip is less than half the length of the first rectangular cavity. The widths of the third, fourth, and fifth metal strips are equal. The height of the third metal strip is equal to the height of the fourth metal strip and less than the height of the fifth metal strip. The lower end face of the second metal strip is on the same plane as the upper end face of the third metal strip. The third, fourth, and fifth metal strips are stacked from top to bottom. The left end faces of the third, fourth, and fifth metal strips are aligned with the left end face of the first rectangular cavity. Located on the same plane and respectively fixed to the second rectangular metal block, the lower end face of the fifth metal strip is connected to and in contact with the lower end face of the first rectangular cavity; the lower end face of the fourth metal strip is connected to and in contact with the upper end face of the fifth metal strip; the lower end face of the third metal strip is connected to and in contact with the upper end face of the fourth metal strip; the symmetrical planes of the third, fourth, and fifth metal strips along the left-right direction are located on the same plane as the symmetrical plane of the first rectangular cavity along the left-right direction; the sixth metal strip and the third metal strip are symmetrical about each other with respect to the symmetrical plane of the first rectangular cavity along the front-back direction; the seventh metal strip and the fourth metal strip... The eighth and fifth metal strips are symmetrical about the front-to-back plane of the first rectangular cavity. The upper surface of the first rectangular cavity in each single-ridge rectangular channel serves as an output port of the single-ridge waveguide transmission layer. The single-ridge waveguide transmission layer has four output ports, which transmit four TE10 mode signals one-to-one to four radiating slot elements. The four single-ridge rectangular channels are arranged sequentially from front to back, and each channel is connected to one of the four radiating slot elements.The upper end face of the first rectangular cavity of the single-ridge rectangular channel is connected to and fitted with the lower end faces of the 48 radial slots of the radial slot unit. The symmetrical plane of the first rectangular cavity of the single-ridge rectangular channel along the left-right direction is on the same plane as the symmetrical plane of the enclosing region of the radial slot unit along the left-right direction. The symmetrical plane of the single-ridge rectangular channel along the front-back direction is on the same plane as the symmetrical plane of the enclosing region of the radial slot unit along the front-back direction. Four first double-ridge waveguide channels are distributed sequentially from front to back. Each first double-ridge waveguide channel includes a second rectangular cavity, a first square cavity, and a third rectangular cavity connected sequentially from front to back. The second rectangular cavity, the first square cavity, and the third rectangular cavity are all formed in... On the second rectangular metal block, the length of the second rectangular cavity, the first square cavity, and the third rectangular cavity are along the left-right direction, the width is along the front-back direction, and the height is along the up-down direction. The lengths of the second rectangular cavity and the third rectangular cavity are equal and greater than the length of the first square cavity. The widths of the second rectangular cavity, the first square cavity, and the third rectangular cavity are equal, and the sum of their widths is equal to the width of the first rectangular cavity. The width of the first square cavity is equal to the width of the fifth metal strip. The heights of the second rectangular cavity, the first square cavity, and the third rectangular cavity are equal. The lower end face of the third rectangular cavity is on the same plane as the lower end face of the second rectangular metal block. The sum of the height of the second rectangular cavity and the height of the first rectangular cavity is equal to the height of the second rectangular metal block. The rear end face of the second rectangular cavity is connected to and fitted with the front end face of the first square cavity, and the rear end face of the first square cavity is connected to and fitted with the front end face of the third rectangular cavity. Four first double-ridge waveguide channels correspond one-to-one with four single-ridge rectangular channels. In a corresponding first double-ridge waveguide channel and a single-ridge rectangular channel, the symmetry planes of the second rectangular cavity, the first square cavity, and the third rectangular cavity of the first double-ridge waveguide channel along the front-back direction are aligned with the first rectangular cavity of the single-ridge rectangular channel. The symmetrical planes of the cavities along the front-to-back direction are located on the same plane. The upper end faces of the second rectangular cavity, the first square cavity, and the third rectangular cavity of the double-ridged waveguide channel are connected to and in contact with the lower end face of the first rectangular cavity of the single-ridged rectangular channel. The front end face of the second rectangular cavity of the double-ridged waveguide channel is on the same plane as the front end face of the first rectangular cavity of the single-ridged rectangular channel. The rear end face of the third rectangular cavity of the double-ridged waveguide channel is on the same plane as the rear end face of the first rectangular cavity of the single-ridged rectangular channel. The left end face of the first square cavity of the double-ridged waveguide channel and the right end face of the fifth metal strip of the single-ridged rectangular channel are on the same plane. The right end face of the first square cavity of the double-ridged waveguide channel and the left end face of the eighth metal strip of the single-ridged rectangular channel are on the same plane.

[0009] The aforementioned double-ridged coaxial layer includes a third rectangular metal block, a fourth rectangular metal block, and a fifth rectangular metal block. The length of each of these blocks is along the left-right direction, the width is along the front-back direction, and the height is along the top-bottom direction. The lengths of the third, fourth, and fifth rectangular metal blocks are equal and less than the length of the second rectangular metal block. The widths of the third, fourth, and fifth rectangular metal blocks are equal to those of the second rectangular metal block. These blocks are stacked from top to bottom. The third rectangular metal block is positioned... Below the second rectangular metal block, the upper end face of the third rectangular metal block is fixedly connected to and in contact with the lower end face of the second rectangular metal block. The front ends of the third, fourth, and fifth rectangular metal blocks are on the same plane as the front end face of the second rectangular metal block. The rear ends of the third, fourth, and fifth rectangular metal blocks are on the same plane as the rear end face of the second rectangular metal block. The left ends of the third, fourth, and fifth rectangular metal blocks are on the same plane. The right end face of the metal block is located on the same plane; four identical second double-ridge waveguide channels are formed within the third rectangular metal block. These four channels are arranged alternately from front to back. Each second double-ridge waveguide channel includes a fourth, fifth, and sixth rectangular cavity connected sequentially from front to back. The fourth, fifth, and sixth rectangular cavities penetrate the third rectangular metal block from top to bottom. The length of the fourth and sixth rectangular cavities is along the left-right direction, the width along the front-back direction, and the height along the top-bottom direction. The length of the fifth rectangular cavity is along the front-back direction, the width along the left-right direction, and the height along the bottom-top direction. Along the vertical direction, the lengths of the fourth and sixth rectangular cavities are equal to the length of the second rectangular cavity, and the widths of the fourth and sixth rectangular cavities are equal to the width of the second rectangular cavity. The length of the fifth rectangular cavity is equal to the length of the first square cavity, and the width of the fifth rectangular cavity is less than the width of the first square cavity. The rear end face of the fourth rectangular cavity is connected to and fitted with the front end face of the fifth rectangular cavity, and the rear end face of the fifth rectangular cavity is connected to and fitted with the front end face of the sixth rectangular cavity. The symmetrical planes of the fourth, fifth, and sixth rectangular cavities along the front-rear direction are located on the same plane.Four second double-ridged waveguide channels are connected one-to-one with four first double-ridged waveguide channels. In a corresponding second double-ridged waveguide channel and a corresponding first double-ridged waveguide channel, the upper end faces of the fourth, fifth, and sixth rectangular cavities of the second double-ridged waveguide channel are in contact with and fitted to the lower end faces of the second rectangular, first square, and third rectangular cavities of the first double-ridged waveguide channel. The front end face of the fourth rectangular cavity of the second double-ridged waveguide channel is on the same plane as the front end face of the second rectangular cavity of the first double-ridged waveguide channel. The left end face of the fourth rectangular cavity of the second double-ridged waveguide channel is on the same plane as the left end face of the second rectangular cavity of the first double-ridged waveguide channel. The right end face of the fourth rectangular cavity of the second double-ridged waveguide channel is connected to the first double-ridged waveguide channel. The right end face of the second rectangular cavity of the channel is located on the same plane. The symmetry planes of the fourth, fifth, and sixth rectangular cavities of the second double-ridge waveguide channel along the front-back direction are located on the same plane as the symmetry plane of the second rectangular cavity of the first double-ridge waveguide channel along the front-back direction. Four coaxial inner core channels with identical structure and size are formed on the fourth rectangular metal block. The four coaxial inner core channels are arranged in a sequentially spaced manner from front to back. Each coaxial inner core channel includes a seventh rectangular cavity, an eighth rectangular cavity, a ninth rectangular cavity, a first square metal matching block, a second square metal matching block, a first rectangular metal matching block, and a second rectangular metal matching block. The seventh, eighth, and ninth rectangular cavities are arranged from left to right and are arranged sequentially. The seventh, eighth, and ninth rectangular cavities are interconnected, all penetrating the fourth rectangular metal block from top to bottom. The length of the seventh and eighth rectangular cavities is along the front-to-back direction, the width along the left-to-right direction, and the height along the top-to-bottom direction. The length of the ninth rectangular cavity is along the left-to-right direction, the width along the front-to-back direction, and the height along the top-to-bottom direction. The right end face of the ninth rectangular cavity is on the same plane as the right end face of the fourth rectangular metal block. The right end face of the eighth rectangular cavity is connected to and fits against the left end face of the ninth rectangular cavity. The right end face of the seventh rectangular cavity is connected to and fits against the left end face of the eighth rectangular cavity. The cavity and the ninth rectangular cavity are located on the same plane along their left-right symmetrical planes. The first square metal matching block, the second square metal matching block, the first rectangular metal matching block, and the second rectangular metal matching block are arranged sequentially from left to right. The length of the first square metal matching block, the second square metal matching block, the first rectangular metal matching block, and the second rectangular metal matching block is along the left-right direction, the width is along the front-back direction, and the height is along the up-down direction. The height of the first square metal matching block and the second square metal matching block is the same as the height of the fourth rectangular metal block, and the height of the first rectangular metal matching block and the second rectangular metal matching block are equal.And the height is less than that of the second square metal matching block. The length and width of the first square metal matching block, the length and width of the second square metal matching block, and the width of the fourth rectangular cavity are equal. The widths of the first square metal matching block, the second square metal matching block, and the first rectangular metal matching block are equal. The width of the second rectangular metal matching block is less than that of the first rectangular metal matching block. The lower end faces of the first square metal matching block, the second square metal matching block, the first rectangular metal matching block, the second rectangular metal matching block, and the fourth rectangular metal block are on the same plane. The first rectangular metal matching block, the second square metal matching block, and the seventh rectangular cavity are located on the same plane along their left-right symmetrical planes. The first square metal matching block is located inside the seventh rectangular cavity, and its left end face is connected to and fitted with the left end face of the seventh rectangular cavity. The second square metal matching block is located inside the seventh rectangular cavity, and its right end face is connected to and fitted with the right end face of the seventh rectangular cavity. There is a distance between the left end face of the second square metal matching block and the right end face of the first square metal matching block. This distance is equal to the width of the fifth rectangular cavity. The left end face of the first rectangular metal matching block is connected to and in contact with the right end face of the second square metal matching block. The left end face of the second rectangular metal matching block is connected to and in contact with the right end face of the first rectangular metal matching block. The right end face of the second rectangular metal matching block is flush with the right end face of the fourth rectangular metal block. The four coaxial inner core channels are connected one-to-one with the four second double-ridge waveguide channels. In a corresponding coaxial inner core channel and a second double-ridge waveguide channel, the upper end face of the seventh rectangular cavity of the coaxial inner core channel is connected to the lower end face of the fourth, fifth, and sixth rectangular cavities of the second double-ridge waveguide channel. The components are connected and in a fitted state. The left end face of the seventh rectangular cavity of the coaxial inner core channel is on the same plane as the left end face of the fourth rectangular cavity of the second double-ridge waveguide channel. The front end face of the seventh rectangular cavity of the coaxial inner core channel is on the same plane as the front end face of the fourth rectangular cavity of the second double-ridge waveguide channel. The right end face of the seventh rectangular cavity of the coaxial inner core channel is on the same plane as the right end face of the fourth rectangular cavity of the second double-ridge waveguide channel. The rear end face of the seventh rectangular cavity of the coaxial inner core channel is on the same plane as the rear end face of the sixth rectangular cavity of the second double-ridge waveguide channel. The plane of symmetry of the seventh rectangular cavity of the coaxial inner core channel along the front-back direction is on the same plane as the plane of symmetry of the fifth rectangular cavity of the second double-ridge waveguide channel along the front-back direction.The symmetrical plane of the seventh rectangular cavity in the coaxial inner core channel along the left-right direction is located on the same plane as the symmetrical plane of the fifth rectangular cavity in the second double-ridge waveguide channel along the left-right direction. Four coaxial bottom channels with identical structure and size are formed on the fifth rectangular metal block. These four coaxial bottom channels are arranged sequentially from front to back, and each coaxial bottom channel includes a tenth rectangular cavity, an eleventh rectangular cavity, a twelfth rectangular cavity, a third square metal matching block, a third rectangular metal matching block, and a fourth rectangular metal matching block. The tenth, eleventh, and twelfth rectangular cavities are arranged from left to right and are sequentially connected. The length direction of the tenth and eleventh rectangular cavities is along... The length of the twelfth rectangular cavity is along the left-right direction, the width along the front-back direction, and the height along the top-bottom direction. The length of the tenth rectangular cavity is equal to the length of the seventh rectangular cavity, and the width of the tenth rectangular cavity is equal to the width of the seventh rectangular cavity. The length of the eleventh rectangular cavity is equal to the length of the eighth rectangular cavity, and the width of the eleventh rectangular cavity is equal to the width of the eighth rectangular cavity. The length of the twelfth rectangular cavity is equal to the length of the ninth rectangular cavity, and the width of the twelfth rectangular cavity is equal to the width of the ninth rectangular cavity. The tenth rectangular cavity and the eleventh rectangular cavity... The height of the twelfth rectangular cavity is equal to and less than the height of the fifth rectangular metal block. The upper end faces of the tenth, eleventh, and twelfth rectangular cavities are on the same plane as the upper end face of the fifth rectangular metal block. The right end face of the twelfth rectangular cavity is on the same plane as the right end face of the fifth rectangular metal block. The right end face of the eleventh rectangular cavity is connected to and fitted with the left end face of the twelfth rectangular cavity. The right end face of the tenth rectangular cavity is connected to and fitted with the left end face of the eleventh rectangular cavity. The symmetrical planes of the tenth, eleventh, and twelfth rectangular cavities along the left-right direction are on the same plane. The third rectangular cavity... The first rectangular metal matching block, the second rectangular metal matching block, and the third rectangular metal matching block are arranged sequentially from left to right. The length of the third square metal matching block and the third rectangular metal matching block is along the front-to-back direction, the width is along the left-to-right direction, and the height is along the top-to-bottom direction. The length of the fourth rectangular metal matching block is along the left-to-right direction, the width is along the front-to-back direction, and the height is along the top-to-bottom direction. The length of the third square metal matching block is equal to the length of the first square metal matching block, the width of the third square metal matching block is equal to the width of the first square metal matching block, and the height of the third square metal matching block is equal to the height of the tenth rectangular cavity.The length of the third rectangular metal matching block is equal to the length of the third square metal matching block, and the height of the third rectangular metal matching block is less than the height of the third square metal matching block. The height of the fourth rectangular metal matching block is equal to the height of the third rectangular metal matching block, and the width of the fourth rectangular metal matching block is less than the width of the third rectangular metal matching block. The lower end faces of the third square metal matching block, the third rectangular metal matching block, and the fourth rectangular metal matching block are located on the same plane as the lower end face of the tenth rectangular cavity. The third square metal matching block is located inside the tenth rectangular cavity. The left side of the third square metal matching block... The end face of the third rectangular metal matching block is connected to and fitted with the left end face of the tenth rectangular cavity. The left end face of the third rectangular metal matching block is connected to and fitted with the right end face of the third square metal matching block. The fourth rectangular metal matching block is located in the tenth, eleventh, and twelfth rectangular cavities. The left end face of the fourth rectangular metal matching block is connected to and fitted with the right end face of the third rectangular metal matching block. The right end face of the fourth rectangular metal matching block is located between the left and right end faces of the twelfth rectangular cavity. The third square metal matching block and the third rectangular metal matching block... The blocks, the fourth rectangular metal matching block, and the tenth rectangular cavity are symmetrical about the same plane along the left-right direction; the four coaxial bottom channels are connected one-to-one with the four coaxial inner core channels. In a corresponding coaxial bottom channel and a coaxial inner core channel, the upper end face of the tenth rectangular cavity of the coaxial bottom channel is connected to and in contact with the lower end face of the seventh rectangular cavity of the coaxial inner core channel. The left end face of the tenth rectangular cavity of the coaxial bottom channel is on the same plane as the left end face of the seventh rectangular cavity of the coaxial inner core channel. The front end face of the tenth rectangular cavity of the coaxial bottom channel is on the same plane as the front end face of the seventh rectangular cavity of the coaxial inner core channel. The right end face of the tenth rectangular cavity of the coaxial bottom channel is on the same plane as the coaxial inner core channel. The right end face of the seventh rectangular cavity is located on the same plane, and the rear end face of the tenth rectangular cavity of the coaxial bottom channel is located on the same plane as the rear end face of the seventh rectangular cavity of the coaxial inner core channel. Correspondingly, in one coaxial inner core channel and one coaxial bottom channel, the right end face of the ninth rectangular cavity and the right end face of the second rectangular metal matching block in the coaxial inner core channel, together with the right end face of the twelfth rectangular cavity in the coaxial bottom channel, form a first coaxial interface surface. That is, the double-ridge to coaxial layer has four first coaxial interface surfaces arranged sequentially from front to back. These four first coaxial interface surfaces are used to connect with the adjustable reflective phase shifter group and receive the four TEM mode signals output by the adjustable reflective phase shifter group.

[0010] The adjustable reflective phase shifter assembly comprises four adjustable reflective phase shifters with identical structure and size, arranged sequentially below the second rectangular metal block from front to back. Each adjustable reflective phase shifter includes a sixth rectangular metal block, a seventh rectangular metal block, an eighth rectangular metal block, a first metal piston, a second metal piston, a fifth rectangular metal matching block, a sixth rectangular metal matching block, a seventh rectangular metal matching block, an eighth rectangular metal matching block, a ninth rectangular metal matching block, a tenth rectangular metal matching block, an eleventh rectangular metal matching block, a twelfth rectangular metal matching block, a thirteenth rectangular metal matching block, a fourteenth rectangular metal matching block, a fifteenth rectangular metal matching block, and a sixteenth rectangular metal matching block. Matching blocks: the seventeenth rectangular metal matching block, the eighteenth rectangular metal matching block, the nineteenth rectangular metal matching block, the twentieth rectangular metal matching block, the twenty-first rectangular metal matching block, and the twenty-second rectangular metal matching block; the sixth, seventh, and eighth rectangular metal blocks are stacked from front to back, with their length direction along the left-right direction, their width direction along the up-down direction, and their height direction along the front-back direction; the sixth, seventh, and eighth rectangular metal blocks are stacked from front to back; the sixth rectangular metal block has a thirteenth rectangular cavity, a fourteenth rectangular cavity, a fifteenth rectangular cavity, a first elongated cavity, and a second elongated cavity; the thirteenth rectangular cavity, the fourteenth rectangular cavity, and the fifteenth rectangular cavity... The cavities are arranged from left to right and are connected sequentially. The first and second elongated cavities are located to the right of the fifteenth rectangular cavity. The first and second elongated cavities are arranged vertically at intervals. The length direction of the thirteenth and fifteenth rectangular cavities is along the vertical direction, the width direction is along the horizontal direction, and the height direction is along the front-back direction. The length direction of the fourteenth rectangular cavity is along the horizontal direction, the width direction is along the vertical direction, and the height direction is along the front-back direction. The first and second elongated cavities are both rectangular cavities, and their length direction is along the horizontal direction, the width direction is along the vertical direction, and the height direction is along the front-back direction. The thirteenth, fourteenth, and fifteenth rectangular cavities are... The height of the first and second elongated cavities is equal to the height of the sixth rectangular metal block. The length of the thirteenth rectangular cavity is equal to the length of the fifteenth rectangular cavity. The width of the thirteenth rectangular cavity is greater than the width of the fifteenth rectangular cavity. The width of the fourteenth rectangular cavity is greater than the length of the thirteenth rectangular cavity. The width of the first and second elongated cavities is less than half the length of the thirteenth rectangular cavity. The lengths of the first and second elongated cavities are equal. The rear end faces of the thirteenth, fourteenth, and fifteenth rectangular cavities, the first and second elongated cavities, and the rear end face of the sixth rectangular metal block are located on the same plane.The left end face of the thirteenth rectangular cavity is on the same plane as the left end face of the sixth rectangular metal block. The upper end face of the fourteenth rectangular cavity is located below the upper end face of the sixth rectangular metal block. The right end face of the thirteenth rectangular cavity is connected to and fits against the left end face of the fourteenth rectangular cavity. The right end face of the fourteenth rectangular cavity is connected to and fits against the left end face of the fifteenth rectangular cavity. The symmetrical planes of the thirteenth, fourteenth, and fifteenth rectangular cavities along the left-right direction are on the same plane. The left end faces of the first and second elongated cavities are both connected to and fit against the right end face of the fifteenth rectangular cavity. The right end faces of the first and second elongated cavities... The right end face of the sixth rectangular metal block is located on the same plane as the right end face of the first elongated cavity. The upper end face of the first elongated cavity is located on the same plane as the upper end face of the fifteenth rectangular cavity. The lower end face of the second elongated cavity is located on the same plane as the lower end face of the fifteenth rectangular cavity. There is a distance between the lower end face of the first elongated cavity and the upper end face of the second elongated cavity. The first elongated cavity and the second elongated cavity are vertically symmetrical with respect to the plane of symmetry of the thirteenth rectangular cavity along the left-right direction. A matching metal block is provided inside the thirteenth rectangular cavity. The matching metal block has a cuboid structure, with its length along the left-right direction, its width along the up-down direction, and its height along the front-back direction. The length of the matching metal block is greater than that of the... The width of the matching metal block is such that its left end face is flush with the left end face of the thirteenth rectangular cavity, its rear end face is flush with the rear end face of the thirteenth rectangular cavity, its front end face is flush with the front end face of the thirteenth rectangular cavity, its upper end face is on the same plane as the lower end face of the first elongated cavity, and its lower end face is on the same plane as the upper end face of the second elongated cavity. The seventh rectangular metal block has a sixteenth rectangular cavity, a seventeenth rectangular cavity, an eighteenth rectangular cavity, a third elongated cavity, and a fourth elongated cavity. The sixteenth, seventeenth, and eighteenth rectangular cavities are arranged sequentially from left to right and are connected. The third elongated cavity... The first and fourth elongated cavities are located to the right of the eighteenth rectangular cavity. The third and fourth elongated cavities are spaced vertically apart. The sixteenth and eighteenth rectangular cavities are oriented vertically along their length, horizontally along their width, and vertically along their height. The seventeenth rectangular cavity is oriented horizontally along its length, vertically along its width, and vertically along its height. The third and fourth elongated cavities are both rectangular cavities, with their lengths horizontally, vertically, and vertically. The sixteenth rectangular cavity has the same length and width as the thirteenth rectangular cavity.The length of the seventeenth rectangular cavity is the same as the length of the fourteenth rectangular cavity, and the width of the seventeenth rectangular cavity is the same as the width of the fourteenth rectangular cavity. The length of the eighteenth rectangular cavity is the same as the length of the fifteenth rectangular cavity, and the width of the eighteenth rectangular cavity is the same as the width of the fifteenth rectangular cavity. The length of the third elongated cavity is the same as the length of the first elongated cavity, and the width of the third elongated cavity is the same as the width of the first elongated cavity. The length of the fourth elongated cavity is the same as the length of the second elongated cavity, and the width of the fourth elongated cavity is the same as the width of the second elongated cavity. The cavities have the same width. The heights of the sixteenth, seventeenth, eighteenth, third, and fourth elongated cavities are the same as the height of the seventh rectangular metal block. The sixteenth, seventeenth, eighteenth, third, and fourth elongated cavities extend through the seventh rectangular metal block from front to back. The left end face of the sixteenth rectangular cavity is flush with the left end face of the seventh rectangular metal block. The upper end face of the seventeenth rectangular cavity is located below the upper end face of the seventh rectangular metal block. The right end face is fixedly connected to and in contact with the left end face of the seventeenth rectangular cavity. The right end face of the seventeenth rectangular cavity is fixedly connected to and in contact with the left end face of the eighteenth rectangular cavity. The symmetrical planes of the sixteenth, seventeenth, and eighteenth rectangular cavities along the left-right direction are located on the same plane. The upper end face of the sixteenth rectangular cavity is located on the same plane as the upper end face of the thirteenth rectangular cavity. The third elongated cavity is located above the fourth elongated cavity. The left end faces of both the third and fourth elongated cavities are connected to and in contact with the right end face of the eighteenth rectangular cavity. In this configuration, the right end faces of the third and fourth elongated cavities are coplanar with the right end face of the seventh rectangular metal block; the upper end face of the third elongated cavity is coplanar with the upper end face of the eighteenth rectangular cavity; the lower end face of the fourth elongated cavity is coplanar with the lower end face of the eighteenth rectangular cavity; the lower end face of the third elongated cavity is coplanar with the lower end face of the first elongated cavity; the upper end face of the fourth elongated cavity is coplanar with the upper end face of the second elongated cavity; and there is a distance between the lower end face of the third elongated cavity and the upper end face of the fourth elongated cavity.The first elongated cavity and the second elongated cavity are vertically symmetrical with respect to the plane containing the left-right symmetry plane of the sixteenth rectangular cavity; the fifth rectangular metal matching block, the sixth rectangular metal matching block, the seventh rectangular metal matching block, the eighth rectangular metal matching block, the ninth rectangular metal matching block, the tenth rectangular metal matching block, the eleventh rectangular metal matching block, the twelfth rectangular metal matching block, the thirteenth rectangular metal matching block, the fourteenth rectangular metal matching block, the fifteenth rectangular metal matching block, the sixteenth rectangular metal matching block, the seventeenth rectangular metal matching block, the eighteenth rectangular metal matching block, and the tenth rectangular metal matching block... The length direction of the nine rectangular metal matching blocks, the twentieth rectangular metal matching blocks, the twenty-first rectangular metal matching blocks, and the twenty-second rectangular metal matching blocks are along the left-right direction, the width direction is along the up-down direction, and the height direction is along the front-back direction. The fifth rectangular metal matching blocks, the sixth rectangular metal matching blocks, the seventh rectangular metal matching blocks, the eighth rectangular metal matching blocks, the ninth rectangular metal matching blocks, the tenth rectangular metal matching blocks, the eleventh rectangular metal matching blocks, the twelfth rectangular metal matching blocks, the thirteenth rectangular metal matching blocks, the fourteenth rectangular metal matching blocks, the fifteenth rectangular metal matching blocks, and the sixteenth rectangular metal matching blocks... The heights of the seventeenth, eighteenth, nineteenth, twentieth, twenty-first, and twenty-second rectangular metal matching blocks are the same as the height of the seventh rectangular metal block. The width of the sixth rectangular metal matching block is greater than the width of the fifth rectangular metal matching block. The width of the seventh rectangular metal matching block is greater than the width of the sixth rectangular metal matching block. The width of the eighth rectangular metal matching block is greater than the width of the seventh rectangular metal matching block. The width of the third elongated cavity is greater than the width of the eighth rectangular metal matching block. The fifth rectangular metal matching block... The matching block has the same dimensions as the fourteenth rectangular metal matching block; the sixth, twelfth, fifteenth, and twentieth rectangular metal matching blocks have the same dimensions; the seventh, eleventh, sixteenth, and nineteenth rectangular metal matching blocks have the same dimensions; the eighth, tenth, seventeenth, and eighteenth rectangular metal matching blocks have the same dimensions; and the width of the thirteenth rectangular metal matching block is equal to the width of the fifth rectangular metal matching block.The width of the twenty-first rectangular metal matching block is equal to the width of the fourteenth rectangular metal matching block. The sum of the lengths of the fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, and thirteenth rectangular metal matching blocks is equal to the length of the seventh rectangular metal block. The width of the ninth rectangular metal matching block is less than the width of the seventeenth rectangular cavity. The widths of the fifth, sixth, and seventh rectangular metal matching blocks are also equal. The front faces of the eighth, ninth, tenth, eleventh, twelfth, thirteenth, fourteenth, fifteenth, sixteenth, seventeenth, eighteenth, nineteenth, twentieth, twenty-first, and twenty-second rectangular metal matching blocks are located on the same plane as the front face of the seventh rectangular metal block. The fifth rectangular metal matching block... The sixth and seventh rectangular metal matching blocks are located within the sixteenth rectangular cavity; the eighth rectangular metal matching block is located within the sixteenth and seventeenth rectangular cavities; the ninth rectangular metal matching block is located within the seventeenth rectangular cavity; the tenth rectangular metal matching block is located within the seventeenth and eighteenth rectangular cavities; the eleventh rectangular metal matching block is located within the eighteenth rectangular cavity; the twelfth rectangular metal matching block is located within the eighteenth rectangular cavity and the third elongated cavity; the thirteenth rectangular metal matching block is located within the third elongated cavity; and the fourteenth and fifteenth rectangular metal matching blocks... The block and the sixteenth rectangular metal matching block are located within the sixteenth rectangular cavity; the seventeenth rectangular metal matching block is located within both the sixteenth and seventeenth rectangular cavities; the eighteenth rectangular metal matching block is located within both the seventeenth and eighteenth rectangular cavities; the nineteenth rectangular metal matching block is located within the eighteenth rectangular cavity; the twentieth rectangular metal matching block is located within both the eighteenth rectangular cavity and the fourth elongated cavity; the twenty-first rectangular metal matching block is located within the fourth elongated cavity; the twenty-second rectangular metal matching block is located within the sixteenth rectangular cavity; and the left end face of the fifth rectangular metal matching block is flush with the left end face of the seventh rectangular metal block.The right end face of the fifth rectangular metal matching block is fixedly connected to the left end face of the sixth rectangular metal matching block and is in a fitted state. The right end face of the sixth rectangular metal matching block is fixedly connected to the left end face of the seventh rectangular metal matching block and is in a fitted state. The right end face of the seventh rectangular metal matching block is fixedly connected to the left end face of the eighth rectangular metal matching block and is in a fitted state. The lower end faces of the fifth, sixth, seventh, and eighth rectangular metal matching blocks are located on the same plane. The upper end faces of the fifth, sixth, seventh, and eighth rectangular metal matching blocks are... The end face of the eighth rectangular metal matching block is fixedly connected to the left end face of the ninth rectangular metal matching block and is in a fitted state. The left end face of the tenth rectangular metal matching block is fixedly connected to the right end face of the ninth rectangular metal matching block and is in a fitted state. The right end face of the tenth rectangular metal matching block is fixedly connected to the left end face of the eleventh rectangular metal matching block and is in a fitted state. The right end face of the eleventh rectangular metal matching block is fixedly connected to the left end face of the twelfth rectangular metal matching block and is in a fitted state. The right end face of the twelfth rectangular metal matching block... The left end face of the thirteenth rectangular metal matching block is fixedly connected and in a fitted state. The right end face of the thirteenth rectangular metal matching block is flush with the right end face of the seventh rectangular metal block. The lower end faces of the tenth, eleventh, twelfth, and thirteenth rectangular metal matching blocks are located on the same plane. The upper end faces of the tenth, eleventh, twelfth, and thirteenth rectangular metal matching blocks are respectively a distance from the upper end face of the third elongated cavity. The fifth and fourteenth rectangular metal matching blocks are relative to the sixteenth rectangular... The plane containing the symmetrical plane of the cavity along the left-right direction is vertically symmetrical. The sixth and fifteenth rectangular metal matching blocks are vertically symmetrical with respect to the plane containing the symmetrical plane of the sixteenth rectangular cavity along the left-right direction. The seventh and sixteenth rectangular metal matching blocks are vertically symmetrical with respect to the plane containing the symmetrical plane of the sixteenth rectangular cavity along the left-right direction. The eighth and seventeenth rectangular metal matching blocks are vertically symmetrical with respect to the plane containing the symmetrical plane of the sixteenth rectangular cavity along the left-right direction. The tenth and eighteenth rectangular metal matching blocks are vertically symmetrical with respect to the plane containing the symmetrical plane of the sixteenth rectangular cavity along the left-right direction.The eleventh and nineteenth rectangular metal matching blocks are vertically symmetrical with respect to the plane of symmetry of the sixteenth rectangular cavity along the left-right direction. The twelfth and twentieth rectangular metal matching blocks are vertically symmetrical with respect to the plane of symmetry of the sixteenth rectangular cavity along the left-right direction. The thirteenth and twenty-first rectangular metal matching blocks are vertically symmetrical with respect to the plane of symmetry of the sixteenth rectangular cavity along the left-right direction. The left end face of the twenty-second rectangular metal matching block is flush with the left end face of the seventh rectangular metal block. The plane of symmetry of the twenty-second rectangular metal matching block along the left-right direction is symmetrical with respect to the plane of symmetry of the sixteenth rectangular cavity along the left-right direction. The right-side symmetrical planes are located on the same plane. The length of the twenty-second rectangular metal matching block is less than the length of the sixteenth rectangular cavity. There is a distance between the upper end face of the twenty-second rectangular metal matching block and the lower end face of the fifth rectangular metal matching block. There is a distance between the lower end face of the twenty-second rectangular metal matching block and the upper end face of the fourteenth rectangular metal matching block. The upper end face of the twenty-second rectangular metal matching block and the lower end face of the third elongated cavity are located on the same plane. The lower end face of the twenty-second rectangular metal matching block and the upper end face of the fourth elongated cavity are located on the same plane. The ninth rectangular metal matching block has a first rectangular through hole, a second rectangular through hole, and a third rectangular through hole, which are sequentially formed from left to right. The first, second, and third rectangular through holes have lengths along the vertical direction, widths along the horizontal direction, and heights along the front-back direction. The heights of the first, second, and third rectangular through holes are the same as the height of the seventh rectangular metal block. The front faces of the first, second, and third rectangular through holes are on the same plane as the front face of the seventh rectangular metal block. The lengths of the first, second, and third rectangular through holes are equal, and the widths of the first, second, and third rectangular through holes are equal. The distance between the right end face of the first rectangular through hole and the left end face of the second rectangular channel is the same as the distance between the left end face of the third rectangular channel and the right end face of the second rectangular channel. The symmetrical planes of the seventeenth rectangular cavity along the left-right direction, the ninth rectangular metal matching block along the left-right direction, and the second rectangular through hole along the left-right direction coincide. The symmetrical planes of the seventeenth rectangular cavity along the up-down direction, the ninth rectangular metal matching block along the up-down direction, and the second rectangular through hole along the up-down direction also coincide. The first metal piston is disposed within the third elongated cavity. The first metal piston includes a ninth metal strip and a fifth elongated cavity formed on the ninth metal strip.The length of the ninth metal strip and the fifth elongated cavity are along the left-right direction, the width is along the up-down direction, and the height is along the front-back direction. The length of the fifth elongated cavity is less than the length of the ninth metal strip, the width of the fifth elongated cavity is less than the width of the ninth metal strip, and the height of the fifth elongated cavity is less than the height of the ninth metal strip. The width of the ninth metal strip is the same as the width of the third elongated cavity. The height of the ninth metal strip is equal to twice the height of the first elongated cavity plus the sum of the heights of the third elongated cavity. The width of the fifth elongated cavity is equal to the width of the thirteenth rectangular metal matching block. The height of the fifth elongated cavity is equal to the width of the thirteenth rectangular metal matching block. The matching blocks are of equal height. The left end face of the fifth elongated cavity is on the same plane as the left end face of the ninth metal strip. The upper end face of the fifth elongated cavity is below the upper end face of the ninth metal strip, and the lower end face of the fifth elongated cavity is above the lower end face of the ninth metal strip. The front end face of the fifth elongated cavity is behind the front end face of the ninth metal strip, and the rear end face of the fifth elongated cavity is in front of the rear end face of the ninth metal strip. The right end face of the fifth elongated cavity is to the left of the right end face of the ninth metal strip. The upper end face of the fifth elongated cavity is on the same plane as the upper end face of the thirteenth rectangular metal matching block. The lower end face of the fifth elongated cavity is on the same plane as the upper end face of the thirteenth rectangular metal matching block. The lower end face of the thirteenth rectangular metal matching block is located on the same plane. The front end face of the fifth elongated cavity is located on the same plane as the front end face of the thirteenth rectangular metal matching block. The rear end face of the fifth elongated cavity is located on the same plane as the rear end face of the thirteenth rectangular metal matching block. The vertical symmetry planes of the fifth elongated cavity, the ninth metal strip, and the third elongated cavity are located on the same plane. The horizontal symmetry planes of the fifth elongated cavity, the ninth metal strip, and the third elongated cavity are located on the same plane. The thirteenth rectangular metal matching block is inserted into the fifth elongated cavity. A metal piston is capable of moving left and right within the third elongated cavity along the thirteenth rectangular metal matching block. The range of movement extends from the point where the right end face of the fifth elongated cavity aligns with the right end face of the thirteenth rectangular metal matching block to a point where the left end face of the fifth elongated cavity and the right end face of the thirteenth rectangular metal matching block are on the same plane. A second metal piston is disposed within the fourth elongated cavity. The second metal piston includes a tenth metal strip and a sixth elongated cavity formed on the tenth metal strip. The length of the tenth metal strip and the sixth elongated cavity are along the left-right direction, the width is along the up-down direction, and the height is along the front-back direction. The length of the sixth elongated cavity is less than the length of the tenth metal strip.The width of the sixth elongated cavity is less than the width of the tenth metal strip, and the height of the sixth elongated cavity is less than the height of the tenth metal strip. The width of the tenth metal strip is the same as the width of the fourth elongated cavity, and the height of the tenth metal strip is equal to twice the height of the second elongated cavity plus the height of the fourth elongated cavity. The width of the sixth elongated cavity is equal to the width of the twenty-first rectangular metal matching block, and the height of the sixth elongated cavity is equal to the height of the twenty-first rectangular metal matching block. The left end face of the sixth elongated cavity is on the same plane as the left end face of the tenth metal strip, and the upper end face of the sixth elongated cavity is located below the upper end face of the tenth metal strip. The lower end face of the sixth elongated cavity is located above the lower end face of the tenth metal strip; the front end face of the sixth elongated cavity is located behind the front end face of the tenth metal strip; the rear end face of the sixth elongated cavity is located in front of the rear end face of the tenth metal strip; the right end face of the sixth elongated cavity is located to the left of the right end face of the tenth metal strip; the upper end face of the sixth elongated cavity is on the same plane as the upper end face of the twenty-first rectangular metal matching block; the lower end face of the sixth elongated cavity is on the same plane as the lower end face of the twenty-first rectangular metal matching block; the front end face of the sixth elongated cavity is on the same plane as the front end face of the twenty-first rectangular metal matching block; the rear end face of the sixth elongated cavity... The second metal piston is located on the same plane as the rear end face of the twenty-first rectangular metal matching block. The vertical symmetry planes of the sixth elongated cavity, the tenth metal strip, and the fourth elongated cavity are all on the same plane. The horizontal symmetry planes of the sixth elongated cavity, the tenth metal strip, and the fourth elongated cavity are also on the same plane. The twenty-first rectangular metal matching block is inserted into the sixth elongated cavity. The second metal piston can move left and right within the fourth elongated cavity along the twenty-first rectangular metal matching block. The range of movement extends from the right end face of the sixth elongated cavity to the rear end face of the twenty-first rectangular metal matching block. The right end face of the mating block, from its contact point to the left end face of the sixth elongated cavity, is located on the same plane as the right end face of the twenty-first rectangular metal mating block. The eighth metal block has a structure that is mirror-symmetrical to the thirteenth, fourteenth, and fifteenth rectangular cavities, the mating metal block, the first elongated cavity, and the second elongated cavity on the sixth metal block, relative to the seventh rectangular metal block. The four adjustable reflective phase shifters are named, from front to back, the first adjustable reflective phase shifter, the second adjustable reflective phase shifter, the third adjustable reflective phase shifter, and the fourth adjustable reflective phase shifter. The front end face of the sixth rectangular metal block in the first adjustable reflective phase shifter is located on the same plane as the front end face of the second rectangular metal block.The rear end face of the eighth rectangular metal block in the first adjustable reflective phase shifter is connected to and in contact with the front end face of the sixth rectangular metal block in the second adjustable reflective phase shifter. The rear end face of the eighth rectangular metal block in the second adjustable reflective phase shifter is connected to and in contact with the front end face of the sixth rectangular metal block in the third adjustable reflective phase shifter. The rear end face of the eighth rectangular metal block in the third adjustable reflective phase shifter is connected to and in contact with the front end face of the sixth rectangular metal block in the fourth adjustable reflective phase shifter. The rear end face of the eighth rectangular metal block in the fourth adjustable reflective phase shifter is connected to and in contact with the front end face of the sixth rectangular metal block in the second adjustable reflective phase shifter. The rear ends of the metal blocks are located on the same plane. The upper ends of the sixth, seventh, and eighth rectangular metal blocks in the first, second, third, and fourth adjustable reflective phase shifters are connected to and in contact with the lower end of the second rectangular metal block. The left ends of the sixth, seventh, and eighth rectangular metal blocks in the first, second, third, and fourth adjustable reflective phase shifters are connected to and in contact with the lower end of the third rectangular metal block. The right end faces of the fourth rectangular metal block and the fifth rectangular metal block are connected and in a fitted state. The lower end faces of the sixth, seventh, and eighth rectangular metal blocks in the first, second, third, and fourth adjustable reflective phase shifters are on the same plane as the lower end face of the fifth rectangular metal block. The right end faces of the sixth, seventh, and eighth rectangular metal blocks in the first, second, third, and fourth adjustable reflective phase shifters are connected and in a fitted state. The end face is located to the left of the right end face of the second rectangular metal block; the left end face of the region between the upper end face of the thirteenth rectangular cavity in the sixth rectangular metal block and the upper end face of the matching metal block in the sixth rectangular metal block, the left end face of the fifth rectangular metal matching block, the left end face of the region between the upper end face of the sixteenth rectangular cavity and the upper end face of the twenty-second rectangular metal matching block, and the left end face of the region between the upper end face of the rectangular cavity in the eighth rectangular metal block that is mirror-symmetrical to the thirteenth rectangular cavity in the sixth rectangular metal block and the upper end face of the matching metal block that is mirror-symmetrical to the matching metal block in the sixth rectangular metal block constitutes the second coaxial interface surface.The left end face of the region between the lower end face of the thirteenth rectangular cavity in the sixth rectangular metal block and the lower end face of the matching metal block in the sixth rectangular metal block, the left end face of the fourteenth rectangular metal matching block, the left end face of the region between the lower end face of the sixteenth rectangular cavity and the lower end face of the twenty-second rectangular metal matching block, and the left end face of the region between the lower end face of the rectangular cavity in the eighth rectangular metal block that is mirror-symmetrical to the thirteenth rectangular cavity in the sixth rectangular metal block and the lower end face of the matching metal block that is mirror-symmetrical to the matching metal block in the sixth rectangular metal block constitutes a second coaxial interface surface. That is, the adjustable reflective phase shifter has 4 second coaxial interface surfaces and 4 third coaxial interface surfaces; the adjustable reflective phase shifter has 4 second coaxial interface surfaces and 4 third coaxial interface surfaces. The four second coaxial interface surfaces of the reflective phase shifter correspond one-to-one with the four first coaxial interface surfaces of the dual-ridge coaxial layer. In a corresponding second coaxial interface surface and a first coaxial interface surface, the second coaxial interface surface and the first coaxial interface surface are fixedly connected and in a fitted state. Furthermore, the left end face of the fifth rectangular metal matching block of the adjustable reflective phase shifter where the second coaxial interface surface is located is fixedly connected and completely overlaps with the right end face of the second rectangular metal matching block in the coaxial inner core channel where the first coaxial interface is located. The adjustable reflective phase shifter has four third coaxial interface surfaces for connecting to the one-to-four coaxial feed layer, receiving the four TEM mode signals transmitted from the one-to-four coaxial feed layer.

[0011] The aforementioned 1-to-4 coaxial feed layer includes a ninth rectangular metal block and a tenth rectangular metal block. The length of the ninth and tenth rectangular metal blocks is along the left-right direction, the width is along the front-back direction, and the height is along the top-bottom direction. The width of the ninth and tenth rectangular metal blocks is equal to the width of the fifth metal block. The total length of the ninth and tenth rectangular metal blocks is equal to the length of the fifth metal block. The sum of the heights of the ninth, tenth, third, fourth, and fifth rectangular metal blocks is equal to the height of the sixth rectangular metal block. The nine and tenth rectangular metal blocks are of equal width and are located below the fifth rectangular metal block. They are stacked from left to right. The left end face of the ninth rectangular metal block is on the same plane as the left end face of the fifth metal block. The right end face of the ninth rectangular metal block is fixedly connected to and in contact with the left end face of the tenth rectangular metal block. The right end face of the tenth rectangular metal block is on the same plane as the right end face of the fifth metal block. The front ends of the ninth and tenth rectangular metal blocks are on the same plane as the front ends of the fifth metal block. The rear ends of the ninth and tenth rectangular metal blocks are on the same plane as the fifth metal block. The rear end faces of the fifth metal block are located on the same plane. The upper end faces of the ninth and tenth rectangular metal blocks are fixedly connected to and in contact with the lower end face of the fifth metal block. The right end face of the tenth rectangular metal block is fixedly connected to and in contact with the left end faces of the sixth, seventh, and eighth rectangular metal blocks of the four adjustable reflective phase shifters. The lower end faces of the ninth and tenth rectangular metal blocks are located on the same plane as the lower end faces of the sixth, seventh, and eighth rectangular metal blocks of the four adjustable reflective phase shifters. The ninth rectangular metal block has a nineteenth rectangular cavity, a twentieth rectangular cavity, a twenty-first rectangular cavity, and a twenty-second rectangular cavity. The 21st rectangular cavity contains a 23rd, 24th, and 25th rectangular metal matching blocks; the 22nd rectangular cavity contains a 26th rectangular metal matching block; the 19th, 20th, 21st, and 22nd rectangular cavities are sequentially connected; the length of the 19th, 20th, and 21st rectangular cavities is along the front-back direction, the width is along the left-right direction, and the height is along the top-bottom direction; the length of the 23rd, 24th, and 25th rectangular metal matching blocks is along the top-bottom direction, and the width is along the front-back direction.The height direction is along the left-right direction; the length direction of the twenty-second rectangular cavity is along the left-right direction; the width direction is along the front-back direction; and the height direction is up-down. The length direction of the twenty-sixth rectangular metal matching block is along the left-right direction; the width direction is along the front-back direction; and the height direction is up-down. The nineteenth, twentieth, and twenty-first rectangular cavities have the same length. The width of the twentieth rectangular cavity is less than the width of the nineteenth rectangular cavity, the width of the twenty-first rectangular cavity is less than the width of the twentieth rectangular cavity, the width of the twenty-second rectangular cavity is less than the length of the twenty-first rectangular cavity, and the height of the twenty-second rectangular cavity is less than the height of the twenty-first rectangular cavity. The width of the 26th rectangular metal matching block is smaller than the width of the 22nd rectangular cavity, and the height of the 26th rectangular metal matching block is smaller than the height of the 22nd rectangular cavity. The lower end face of the 19th rectangular cavity is on the same plane as the lower end face of the 9th rectangular metal block. The lower end face of the 20th rectangular cavity is fixedly connected to the upper end face of the 19th rectangular cavity and is in a fitted state. The lower end face of the 21st rectangular cavity is fixedly connected to the upper end face of the 20th rectangular cavity and is in a fitted state. The left end face of the 22nd rectangular cavity is fixedly connected to the right end face of the 21st rectangular cavity and is in a fitted state. The 19th rectangular cavity, the 20th rectangular cavity, and the 21st rectangular cavity are located along the front and back... The symmetrical planes of the 19th, 20th, 21st, and 22nd rectangular cavities are located on the same plane along their left and right symmetrical planes. The 23rd, 24th, and 25th rectangular metal matching blocks have the same width. The width of the 23rd rectangular metal matching block is less than the length of the 21st rectangular cavity, and the length of the 23rd rectangular metal matching block is less than the height of the 21st rectangular cavity. The length of the 24th rectangular metal matching block is less than the length of the 23rd rectangular metal matching block, and the length of the 25th rectangular metal matching block is less than the height of the 24th rectangular cavity. The length of the rectangular metal matching block, the sum of the heights of the twenty-third, twenty-fourth, and twenty-fifth rectangular metal matching blocks is less than the width of the twenty-first rectangular cavity, the height of the twenty-sixth rectangular metal matching block is the same as the length of the twenty-fifth rectangular metal matching block, the width of the twenty-sixth rectangular metal matching block is less than the width of the twenty-fifth rectangular metal matching block, the twenty-third, twenty-fourth, and twenty-fifth rectangular metal matching blocks are all located within the twenty-first rectangular cavity, and the twenty-sixth rectangular metal matching block is located within both the twenty-first and twenty-second rectangular cavities.The twenty-third, twenty-fourth, twenty-fifth, and twenty-sixth rectangular metal matching blocks are connected sequentially from left to right. The left end face of the twenty-third rectangular metal matching block is fixedly connected to and in contact with the left end face of the twenty-first rectangular cavity, and is fixed to the ninth rectangular metal block. The left end face of the twenty-fourth rectangular metal matching block is fixedly connected to and in contact with the right end face of the twenty-third rectangular metal matching block. The left end face of the twenty-fifth rectangular metal matching block is fixedly connected to and in contact with the right end face of the twenty-fourth rectangular metal matching block. The left end face of the twenty-sixth rectangular metal matching block is fixedly connected to and in contact with the right end face of the twenty-fifth rectangular metal matching block. The upper end faces of the twenty-third, twenty-fourth, twenty-fifth, and twenty-sixth rectangular metal matching blocks are located on the same plane. The sixteen rectangular metal matching blocks and the twenty-second rectangular cavity are on the same plane along the left-right direction. The right end face of the twenty-sixth rectangular metal matching block and the right end face of the twenty-second rectangular cavity are on the same plane. The vertical plane of the twenty-sixth rectangular metal matching block and the vertical plane of the twenty-second rectangular cavity are on the same plane. A one-to-four coaxial power supply network is provided on the tenth rectangular metal block. The one-to-four coaxial power supply network is composed of a one-to-four power divider, which has one input port and four outputs. The input port of the 1-to-4 power divider is connected to the right end face of the 26th rectangular metal matching block. The input port of the 1-to-4 power divider is also the input port of the 1-to-4 coaxial feed layer, used to input one external TE10 mode signal. The four output ports of the 1-to-4 power divider are the four output ports of the 1-to-4 coaxial feed layer, used to output the four generated equal-amplitude and in-phase TEM mode signals one-to-one. The four output ports of the 1-to-4 coaxial feed layer are connected one-to-one to the four third coaxial interface surfaces of the adjustable reflective phase shifter group.

[0012] Compared with the prior art, the advantages of this invention are that it constructs a one-dimensional phase-sweeping waveguide slot antenna array through a slot radiating layer, a single-ridge waveguide transmission layer, a double-ridge coaxial layer, an adjustable reflective phase shifter group, and a 1-to-4 coaxial feed layer. The 1-to-4 coaxial feed layer receives an external TE10 mode signal and converts the external TE10 mode signal into four equal-amplitude and in-phase TEM mode signals, which are then transmitted to the adjustable reflective phase shifter group. The adjustable reflective phase shifter group adjusts the phase of the four TEM mode signals transmitted from the 1-to-4 coaxial feed layer, generating four T10 mode signals. The EM-mode signal is transmitted to the double-ridge to coaxial layer. The double-ridge to coaxial layer converts the four TEM-mode signals transmitted from the reflective phase shifter group into four TE10-mode signals via a coaxial to double-ridge structure and outputs them to the single-ridge waveguide transmission layer. The single-ridge waveguide transmission layer then transmits the four TE10-mode signals from the double-ridge to coaxial layer to the slot radiation layer via a double-ridge to single-ridge waveguide structure. The slot radiation layer radiates the four TE10-mode signals from the single-ridge waveguide transmission layer into free space. This invention utilizes a one-to-four coaxial feed layer and an adjustable... An antenna array is composed of a reflective phase shifter group and a slotted radiating layer. Adjusting the output phase of the adjustable reflective phase shifter group changes the phase difference between each TEM mode signal, enabling the antenna array to form a beam scan on the E-plane, achieving a beam scan range of ±45° on the E-plane. The slotted radiating layer, single-ridge waveguide transmission layer, double-ridge to coaxial layer, adjustable reflective phase shifter group, and 1-to-4 coaxial feed layer are all implemented entirely with metal, exhibiting low-loss characteristics. This is achieved by setting four radiating slot elements arranged sequentially from front to back on the antenna radiating array surface. The radiating slot element has 48 radiating slots to achieve high gain of the antenna array. The antenna size in the front-to-back direction is compressed by the single-ridge waveguide transmission layer and the double-ridge to coaxial layer. This greatly reduces the spacing between each adjacent radiating slot element, the spacing between each adjacent single-ridge rectangular channel, and the spacing between each adjacent adjustable reflective phase shifter. This enables the antenna array to perform large-angle scanning in the E-plane with the gain dropping to within 3dB. Therefore, the present invention has a simple structure, low cost, and can achieve both large-angle scanning and high gain. Attached Figure Description

[0013] Figure 1 The image shows a burst diagram of the one-dimensional phase-sweeping waveguide slot antenna array based on an adjustable reflective phase shifter according to the present invention.

[0014] Figure 2 This is a front view of the one-dimensional phase-sweep waveguide slot antenna array based on an adjustable reflective phase shifter according to the present invention.

[0015] Figure 3 This is a top view of the radiating slot layer of the one-dimensional phase-sweeping waveguide slot antenna array based on an adjustable reflective phase shifter according to the present invention.

[0016] Figure 4(a) is a main diagram of the single-ridge waveguide transmission layer of the one-dimensional phase-sweeping waveguide slot antenna array based on the adjustable reflective phase shifter of the present invention.

[0017] Figure 4(b) is a main view of the bottom of the single-ridge waveguide transmission layer of the one-dimensional phase-sweeping waveguide slot antenna array based on the adjustable reflective phase shifter of the present invention.

[0018] Figure 4(c) is the front view of part A in Figure 4(b);

[0019] Figure 5 This is a burst diagram of the double-ridge to coaxial layer of the one-dimensional phase-sweeping waveguide slot antenna array based on an adjustable reflective phase shifter according to the present invention.

[0020] Figure 6 This is a burst diagram of the adjustable reflective phase shifter group of the one-dimensional phase-sweeping waveguide slot antenna array based on the adjustable reflective phase shifter of the present invention.

[0021] Figure 7 The image shows a burst diagram of a single adjustable reflective phase shifter in the one-dimensional phase-sweeping waveguide slot antenna array based on an adjustable reflective phase shifter according to the present invention.

[0022] Figure 8 This is a main diagram of the first and second metal pistons in a single adjustable reflective phase shifter of a one-dimensional phase-sweeping waveguide slot antenna array based on an adjustable reflective phase shifter according to the present invention.

[0023] Figure 9 This is a front view of the seventh rectangular metal block in an adjustable reflective phase shifter of a one-dimensional phase-sweeping waveguide slot antenna array based on an adjustable reflective phase shifter according to the present invention.

[0024] Figure 10 This is a main diagram of the one-to-four coaxial feed layer of the one-dimensional phase-sweeping waveguide slot antenna array based on an adjustable reflective phase shifter according to the present invention.

[0025] Figure 11 The simulation results show the gain and standing wave ratio of the antenna element composed of a single single-ridge rectangular channel and a single first double-ridge waveguide channel and the corresponding slot radiating element of the one-dimensional phase-sweeping waveguide slot antenna array based on an adjustable reflective phase shifter according to the present invention.

[0026] Figure 12 The simulation results are for the antenna element composed of a single single-ridge rectangular channel and a single first double-ridge waveguide channel and the corresponding slot radiating element of the one-dimensional phase-sweeping waveguide slot antenna array based on the adjustable reflective phase shifter of the present invention.

[0027] Figure 13The simulation results show the relationship between the output phase of a single adjustable reflective phase shifter group and the moving distance M1 of two metal pistons (first metal piston and second metal piston) in the one-dimensional phase-sweeping waveguide slot antenna array based on adjustable reflective phase shifters of the present invention.

[0028] Figure 14 The simulation results show the output amplitude and phase curves of the one-to-four coaxial feed layer of the one-dimensional phase-sweeping waveguide slot antenna array based on the adjustable reflective phase shifter of the present invention.

[0029] Figure 15 The simulation results of the S-parameters and gain curves of the one-dimensional phase-sweep waveguide slot antenna array based on the adjustable reflective phase shifter of the present invention are shown below.

[0030] Figure 16 The simulation results show the 27GHz frequency E-plane normalized radiation pattern (T1, T2, T3) of the one-dimensional phase-sweep waveguide slot antenna array based on the adjustable reflective phase shifter of the present invention.

[0031] Figure 17 The simulation results show the 27GHz frequency E-plane normalized radiation pattern (T1, T4, T5) of the one-dimensional phase-sweep waveguide slot antenna array based on the adjustable reflective phase shifter of this invention. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0033] Example 1: As Figure 1 As shown, a one-dimensional phase-sweeping waveguide slot antenna array based on an adjustable reflective phase shifter includes a slot radiating layer 1, a single-ridge waveguide transmission layer 2, a double-ridge coaxial layer 3, an adjustable reflective phase shifter group 4, and a 1-to-4 coaxial feed layer 5. The 1-to-4 coaxial feed layer 5 is used to receive external TE10 mode signals and converts the external TE10 mode signals into four equal-amplitude and in-phase TEM mode signals before transmitting them to the adjustable reflective phase shifter group 4. The adjustable reflective phase shifter group 4 is used to adjust the phase of the four TEM mode signals transmitted from the 1-to-4 coaxial feed layer 5, generating four TEM mode signals that are then transmitted to the double-ridge coaxial layer 3. The axial layer 3 is used to convert the four TEM mode signals transmitted to it by the reflective phase shifter group into four TE10 mode signals through a coaxial-to-double-ridge structure and output them to the single-ridge waveguide transmission layer 2. The single-ridge waveguide transmission layer 2 is used to transmit the four TE10 mode signals output to it by the double-ridge-to-coaxial layer 3 through a double-ridge waveguide-to-single-ridge waveguide structure to the slot radiation layer 1. The slot radiation layer 1 is used to radiate the four TE10 mode signals transmitted to it by the single-ridge waveguide transmission layer 2 into free space. The slot radiation layer 1, the single-ridge waveguide transmission layer 2, the double-ridge-to-coaxial layer 3, the adjustable reflective phase shifter group 4, and the one-to-four coaxial feed layer 5 are all made of metal.

[0034] Example 2: This example is basically the same as Example 1, except that: In this example, the slit radiation layer 1 includes a first rectangular metal block 6 and a radiating slit group; the length direction of the first rectangular metal block 6 is taken as the left-right direction, the width direction as the front-back direction, and the height direction as the up-down direction. The radiating slit group includes four radiating slit units 7 with identical structure and size, arranged sequentially from front to back. Each radiating slit unit 7 includes 48 radiating slits 8 for radiating the TE10 mode signal transmitted to it into free space. Each radiating slit 8 is a rectangular slot that penetrates the first rectangular metal block 6 vertically. The length direction is along the left-right direction, and the width direction is along the front-back direction. If each radial slot unit 7 is translated along the front-back direction, its 48 radial slots 8 can completely overlap with the 48 radial slots 8 of the other three radial slot units 7. In each radial slot unit 7, the 48 radial slots 8 are distributed at intervals from left to right. In every two adjacent radial slots 8, the distance between the plane of symmetry along the front-back direction of the left radial slot 8 and the plane of symmetry along the front-back direction of the right radial slot 8 are equal. The 48 radial slots 8 are numbered from 1 to 48 from left to right, and are called the first radial slot 8 to the fourth. There are 8 radial slits 8. The 15th to 33rd radial slits 8 have equal lengths in the left-right direction. The 1st to 14th and 34th to 48th radial slits 8 have equal lengths in the left-right direction. The 1st to 48th radial slits 8 have equal widths in the front-back direction. The distance between the center of the kth radial slit 8 and the center of the (k+1)th radial slit 8 is less than the distance between the center of the (k+1)th radial slit 8 and the center of the (k+2)th radial slit 8, where k = 1, 2, ..., 23. The distance between the center of the mth radial slit 8 and the center of the (m-1)th radial slit 8... The distance between the centers is less than the distance between the centers of the (m-1)th and (m-1)th radial slits 8, where m = 48, 47, ..., 26; in each radial slit unit 7, the rectangular area enclosed by the plane containing the upper end face of the 48 radial slits 8, the plane containing the lower end face of the 48 radial slits 8, the plane containing the left end face of the 1st radial slit 8, the plane containing the right end face of the 48th radial slit 8, the plane containing the front face of the radial slit 8 with its front end face at the foremost position among the 48 radial slits 8, and the plane containing the rear end face of the radial slit 8 with its rear end face at the rearmost position among the 48 radial slits 8 is used as the enclosing area of ​​the radial slit unit 7.

[0035] In this embodiment, the single-ridge waveguide transmission layer 2 includes a second rectangular metal block 9, four single-ridge rectangular channels 10 with identical structural dimensions, and four first double-ridge waveguide channels 11 with identical structural dimensions. The second rectangular metal block 9 is located below the first rectangular metal block 6. The front end face of the second rectangular metal block 9 is on the same plane as the front end face of the first rectangular metal block 6, the rear end face of the second rectangular metal block 9 is on the same plane as the rear end face of the first rectangular metal block 6, the left end face of the second rectangular metal block 9 is on the same plane as the left end face of the first rectangular metal block 6, the right end face of the second rectangular metal block 9 is on the same plane as the right end face of the first rectangular metal block 6, and the upper end face of the second rectangular metal block 9 is fixedly connected to the lower end face of the first rectangular metal block 6. Fitted state; Each single-ridge rectangular channel 10 includes a first rectangular cavity 12, a first metal strip 13, a second metal strip 14, a third metal strip 15, a fourth metal strip 16, a fifth metal strip 17, a sixth metal strip 18, a seventh metal strip 19, and an eighth metal strip 20. The first rectangular cavity 12 is formed on the second rectangular metal block 9. The length direction of the first rectangular cavity 12 is along the left-right direction, the width direction is along the front-back direction, and the height direction is along the up-down direction. The upper end face of the first rectangular cavity 12 and the upper end face of the second rectangular metal block 9 are on the same plane. The lower end face of the first rectangular cavity 12 is located above the lower end face of the second rectangular metal block 9. The front end face of the first rectangular cavity 12 is located behind the front end face of the second rectangular metal block 9. The left end face of the first rectangular cavity 12 is located... On the right side of the left end face of the second rectangular metal block 9, the right end face of the first rectangular cavity 12 is located to the left of the right end face of the second rectangular metal block 9. The distance between the left end face of the first rectangular cavity 12 and the left end face of the second rectangular metal block 9 is equal to the distance between the right end face of the first rectangular cavity 12 and the right end face of the second rectangular metal block 9. The first metal strip 13, the second metal strip 14, the third metal strip 15, the fourth metal strip 16, the fifth metal strip 17, the sixth metal strip 18, the seventh metal strip 19, and the eighth metal strip 20 are all rectangular strips and are located inside the first rectangular cavity 12. The length of the first metal strip 13 and the second metal strip 14 is along the front-back direction, the width is along the left-right direction, and the height is along the up-down direction. The upper end face of the first metal strip 13 is adjacent to the first rectangular cavity 12. The upper surface of the first metal strip 13 is flush with the front surface of the first rectangular cavity 12 and is fixed to the second rectangular metal block 9. The rear surface of the first metal strip 13 is flush with the rear surface of the first rectangular cavity 12 and is fixed to the second rectangular metal block 9. The width of the first metal strip 13 is greater than the width of the second metal strip 14. The heights of the first metal strip 13 and the second metal strip 14 are equal. The second metal strip 14 is located below the first metal strip 13. The upper surface of the second metal strip 14 is connected to the lower surface of the first metal strip 13 and is in a close fit. The front surface of the second metal strip 14 is flush with the front surface of the first rectangular cavity 12 and is fixed to the second rectangular metal block 9. The rear surface of the second metal strip 14 is flush with the rear surface of the first rectangular cavity 12.It is fixed to the second rectangular metal block 9. The symmetrical planes of the first metal strip 13 along the front-back direction, the second metal strip 14 along the front-back direction, and the first rectangular cavity 12 along the front-back direction are located on the same plane. The length directions of the third metal strip 15, fourth metal strip 16, fifth metal strip 17, sixth metal strip 18, seventh metal strip 19, and eighth metal strip 20 are all along the left-right direction, the width directions are all along the front-back direction, and the height directions are all along the up-down direction. The length of the third metal strip 15 is less than the length of the fourth metal strip 16, the length of the fourth metal strip 16 is less than the length of the fifth metal strip 17, and the length of the fifth metal strip 17 is less than half the length of the first rectangular cavity 12. The third metal strip 15, fourth metal strip 16, and fifth metal strip 20 are all along the same plane. The widths of strips 17 are equal. The height of the third metal strip 15 is equal to the height of the fourth metal strip 16, and less than the height of the fifth metal strip 17. The lower end face of the second metal strip 14 is on the same plane as the upper end face of the third metal strip 15. The third metal strip 15, the fourth metal strip 16, and the fifth metal strip 17 are stacked from top to bottom. The left end faces of the third metal strip 15, the fourth metal strip 16, and the fifth metal strip 17 are on the same plane as the left end face of the first rectangular cavity 12, and are respectively fixed to the second rectangular metal block 9. The lower end face of the fifth metal strip 17 is connected to and in a close fit with the lower end face of the first rectangular cavity 12. The lower end face of the fourth metal strip 16 is connected to and in a close fit with the upper end face of the fifth metal strip 17. The lower end face of the third metal strip 15 and the upper end face of the fifth metal strip 17 are on the same plane as the left end face of the first rectangular cavity 12, and are respectively fixed to the second rectangular metal block 9. The upper end face of the fourth metal strip 16 is connected and in a fitted state. The left-right symmetry planes of the third metal strip 15, the fourth metal strip 16, and the fifth metal strip 17 are located on the same plane as the left-right symmetry plane of the first rectangular cavity 12. The sixth metal strip 18 and the third metal strip 15 are symmetrical about the front-back symmetry plane of the first rectangular cavity 12. The seventh metal strip 19 and the fourth metal strip 16 are symmetrical about the front-back symmetry plane of the first rectangular cavity 12. The eighth metal strip 20 and the fifth metal strip 17 are symmetrical about the front-back symmetry plane of the first rectangular cavity 12. The upper end face of the first rectangular cavity 12 of each single-ridge rectangular channel 10 serves as an output port of the single-ridge waveguide transmission layer 2. The transmission layer 2 has four output ports. These four output ports are used to transmit four TE10 mode signals one-to-one to four radiating slot elements 7. Four single-ridge rectangular channels 10 are distributed sequentially from front to back, and each single-ridge rectangular channel 10 is connected to one of the four radiating slot elements 7. In a corresponding single-ridge rectangular channel 10 and a radiating slot element 7, the upper end face of the first rectangular cavity 12 of the single-ridge rectangular channel 10 is connected to and in contact with the lower end face of the 48 radiating slots 8 of the radiating slot element 7. The symmetrical plane of the first rectangular cavity 12 of the single-ridge rectangular channel 10 along the left-right direction is on the same plane as the symmetrical plane of the enclosing region of the radiating slot element 7 along the left-right direction.The symmetry plane of the single-ridged rectangular channel 10 along the front-to-back direction is on the same plane as the symmetry plane of the area enclosed by the radiating slot unit 7 along the front-to-back direction; four first double-ridged waveguide channels 11 are distributed sequentially from front to back, and each first double-ridged waveguide channel includes a second rectangular cavity 21, a first square cavity 22, and a third rectangular cavity 23 connected sequentially from front to back. The second rectangular cavity 21, the first square cavity 22, and the third rectangular cavity 23 are all formed on the second rectangular metal block 9. The length direction of the second rectangular cavity 21, the first square cavity 22, and the third rectangular cavity 23 is along the left-to-right direction, the width direction is along the front-to-back direction, and the height direction is along the up-down direction. The lengths of the rectangular cavities 23 are equal and greater than the length of the first square cavity 22; the widths of the second rectangular cavity 21, the first square cavity 22, and the third rectangular cavity 23 are equal, and the sum of their widths is equal to the width of the first rectangular cavity 12; the width of the first square cavity 22 is equal to the width of the fifth metal strip 17; the heights of the second rectangular cavity 21, the first square cavity 22, and the third rectangular cavity 23 are equal; the lower end faces of the second rectangular cavity 21, the first square cavity 22, and the third rectangular cavity 23 are on the same plane as the lower end face of the second rectangular metal block 9; the sum of the heights of the second rectangular cavity 21 and the first rectangular cavity 12 is equal to the height of the second rectangular metal block 9; the rear end of the second rectangular cavity 21... The front end face of the first square cavity 22 is connected to and in contact with the front end face of the third rectangular cavity 23. The rear end face of the first square cavity 22 is connected to and in contact with the front end face of the third rectangular cavity 23. Each of the four first double-ridge waveguide channels 11 corresponds one-to-one with one of the four single-ridge rectangular channels 10. In a corresponding first double-ridge waveguide channel 11 and a single-ridge rectangular channel 10, the symmetry planes of the second rectangular cavity 21, the first square cavity 22, and the third rectangular cavity 23 along the front-back direction of the first double-ridge waveguide channel 11 are located on the same plane as the symmetry plane of the first rectangular cavity 12 along the front-back direction of the single-ridge rectangular channel 10. The upper surface of the second rectangular cavity 21, the first square cavity 22, and the third rectangular cavity 23 of the double-ridge waveguide channel... The end face of the double-ridged waveguide channel 21 is connected to and in contact with the lower end face of the first rectangular cavity 12 of the single-ridged rectangular channel 10. The front end face of the second rectangular cavity 21 of the double-ridged waveguide channel is on the same plane as the front end face of the first rectangular cavity 12 of the single-ridged rectangular channel 10. The rear end face of the third rectangular cavity 23 of the double-ridged waveguide channel is on the same plane as the rear end face of the first rectangular cavity 12 of the single-ridged rectangular channel 10. The left end face of the first square cavity 22 of the double-ridged waveguide channel and the right end face of the fifth metal strip 17 of the single-ridged rectangular channel 10 are on the same plane. The right end face of the first square cavity 22 of the double-ridged waveguide channel and the left end face of the eighth metal strip 20 of the single-ridged rectangular channel 10 are on the same plane.

[0036] In this embodiment, the double-ridged coaxial layer 3 includes a third rectangular metal block 24, a fourth rectangular metal block 25, and a fifth rectangular metal block 26. The length of each of the three rectangular metal blocks 24, 25, and 26 is along the left-right direction, their width is along the front-back direction, and their height is along the up-down direction. The lengths of the three rectangular metal blocks 24, 25, and 26 are equal and less than the length of the second rectangular metal block 9. The widths of the three rectangular metal blocks 24, 25, and 26 are equal to those of the second rectangular metal block 9. The three rectangular metal blocks 24, 25, and 26 are stacked from top to bottom. Metal block 24 is located below the second rectangular metal block 9. The upper end face of the third rectangular metal block 24 is fixedly connected to the lower end face of the second rectangular metal block 9 and is in a fitted state. The front end faces of the third rectangular metal block 24, the fourth rectangular metal block 25, and the fifth rectangular metal block 26 are on the same plane as the front end face of the second rectangular metal block 9. The rear end faces of the third rectangular metal block 24, the fourth rectangular metal block 25, and the fifth rectangular metal block 26 are on the same plane as the rear end face of the second rectangular metal block 9. The left end faces of the third rectangular metal block 24, the fourth rectangular metal block 25, and the fifth rectangular metal block 26 are on the same plane. The right end faces of the third rectangular metal block 24, the fourth rectangular metal block 25, and the fifth rectangular metal block 26 are on the same plane. Four identical second double-ridge waveguide channels 27 are formed within the three rectangular metal blocks 24. These four channels are arranged sequentially from front to back, and each channel includes a fourth rectangular cavity 28, a fifth rectangular cavity 29, and a sixth rectangular cavity 30 connected sequentially from front to back. The fourth, fifth, and sixth rectangular cavities 28, 29, and 30 penetrate the third rectangular metal block 24 from top to bottom. The length of the fourth and sixth rectangular cavities 28 and 29 is along the left-right direction, the width along the front-back direction, and the height along the top-bottom direction. The length of the fifth rectangular cavity 29 is along the front-back direction, the width along the left-right direction, and the height along the top-bottom direction. The lengths of all six rectangular cavities 30 are equal to the length of the second rectangular cavity 21. The widths of the fourth rectangular cavity 28 and the sixth rectangular cavity 30 are equal to the width of the second rectangular cavity 21. The length of the fifth rectangular cavity 29 is equal to the length of the first square cavity 22, but the width of the fifth rectangular cavity 29 is less than the width of the first square cavity 22. The rear end face of the fourth rectangular cavity 28 is connected to and fitted with the front end face of the fifth rectangular cavity 29, and the rear end face of the fifth rectangular cavity 29 is connected to and fitted with the front end face of the sixth rectangular cavity 30. The symmetrical planes of the fourth rectangular cavity 28, the fifth rectangular cavity 29, and the sixth rectangular cavity 30 along the front-rear direction are located on the same plane. The four second double-ridge waveguide channels 27 are connected one-to-one with the four first double-ridge waveguide channels 11.In a corresponding second double-ridged waveguide channel 27 and a first double-ridged waveguide channel 11, the upper end faces of the fourth rectangular cavity 28, the fifth rectangular cavity 29, and the sixth rectangular cavity 30 of the second double-ridged waveguide channel 27 are in contact with and fitted to the lower end faces of the second rectangular cavity 21, the first square cavity 22, and the third rectangular cavity 23 of the first double-ridged waveguide channel 11. The front end face of the fourth rectangular cavity 28 of the second double-ridged waveguide channel 27 is on the same plane as the front end face of the second rectangular cavity 21 of the first double-ridged waveguide channel 11. The left end face of the fourth rectangular cavity 28 of the second double-ridged waveguide channel 27 is on the same plane as the left end face of the second rectangular cavity 21 of the first double-ridged waveguide channel 11. The right end face of 8 is on the same plane as the right end face of the second rectangular cavity 21 of the first double-ridge waveguide channel 11. The symmetry planes of the fourth rectangular cavity 28, the fifth rectangular cavity 29, and the sixth rectangular cavity 30 of the second double-ridge waveguide channel 27 along the front-back direction are on the same plane as the symmetry plane of the second rectangular cavity 21 of the first double-ridge waveguide channel 11 along the front-back direction. Four coaxial inner core channels 31 with identical structure and size are provided on the fourth rectangular metal block 25. The four coaxial inner core channels 31 are distributed in sequence from front to back. Each coaxial inner core channel 31 includes a seventh rectangular cavity 32, an eighth rectangular cavity 33, a ninth rectangular cavity 34, a first square metal matching block 35, a second square metal matching block 36, and a first rectangular metal matching block. 37 and the second rectangular metal matching block 38, the seventh rectangular cavity 32, the eighth rectangular cavity 33 and the ninth rectangular cavity 34 are arranged from left to right and are connected sequentially. The seventh rectangular cavity 32, the eighth rectangular cavity 33 and the ninth rectangular cavity 34 all penetrate the fourth rectangular metal block 25 from top to bottom. The length direction of the seventh rectangular cavity 32 and the eighth rectangular cavity 33 is along the front-back direction, the width direction is along the left-right direction, and the height direction is along the up-down direction. The length direction of the ninth rectangular cavity 34 is along the left-right direction, the width direction is along the front-back direction, and the height direction is along the up-down direction. The right end face of the ninth rectangular cavity 34 is on the same plane as the right end face of the fourth rectangular metal block 25. The right end face of the eighth rectangular cavity 33 is connected to the left end face of the ninth rectangular cavity 34 and is in a fitted state. The seventh rectangular cavity 32... The right end face of the seventh rectangular cavity 32 is connected to the left end face of the eighth rectangular cavity 33 and is in a fitted state. The symmetrical planes of the seventh rectangular cavity 32, the eighth rectangular cavity 33, and the ninth rectangular cavity 34 along the left and right directions are located on the same plane. The first square metal matching block 35, the second square metal matching block 36, the first rectangular metal matching block 37, and the second rectangular metal matching block 38 are arranged sequentially from left to right. The length direction of the first square metal matching block 35, the second square metal matching block 36, the first rectangular metal matching block 37, and the second rectangular metal matching block 38 is along the left and right direction, the width direction is along the front and back direction, and the height direction is along the up and down direction. The height of the first square metal matching block 35 and the second square metal matching block 36 is the same as the height of the fourth rectangular metal block 25.The heights of the first rectangular metal matching block 37 and the second rectangular metal matching block 38 are equal and smaller than the height of the second square metal matching block 36. The length and width of the first square metal matching block 35, the length and width of the second square metal matching block 36, and the width of the fourth rectangular cavity 28 are equal. The widths of the first square metal matching block 35, the second square metal matching block 36, and the first rectangular metal matching block 37 are equal. The width of the second rectangular metal matching block 38 is smaller than the width of the first rectangular metal matching block 37. The heights of the first square metal matching block 35, the second square metal matching block 36, the first rectangular metal matching block 37, the second rectangular metal matching block 38, and the fourth rectangular metal block 25 are... The lower end faces are on the same plane. The first square metal matching block 35, the second square metal matching block 36, the first rectangular metal matching block 37, the second rectangular metal matching block 38, and the seventh rectangular cavity 32 are on the same plane along the left-right direction. The first square metal matching block 35 is located inside the seventh rectangular cavity 32. The left end face of the first square metal matching block 35 is connected to and in contact with the left end face of the seventh rectangular cavity 32. The second square metal matching block 36 is located inside the seventh rectangular cavity 32. The right end face of the second square metal matching block 36 is connected to and in contact with the right end face of the seventh rectangular cavity 32. The left end face of the second square metal matching block 36 is adjacent to the right end face of the first square metal matching block 35. There is a distance between them, and this distance is equal to the width of the fifth rectangular cavity 29. The left end face of the first rectangular metal matching block 37 is connected to the right end face of the second square metal matching block 36 and is in a fitted state. The left end face of the second rectangular metal matching block 38 is connected to the right end face of the first rectangular metal matching block 37 and is in a fitted state. The right end face of the second rectangular metal matching block 38 is flush with the right end face of the fourth rectangular metal block 25. The four coaxial inner core channels 31 are connected to the four second double-ridge waveguide channels 27 in a one-to-one correspondence. In a corresponding coaxial inner core channel 31 and a second double-ridge waveguide channel 27, the upper end face of the seventh rectangular cavity 32 of the coaxial inner core channel 31 is connected to the upper end face of the fourth rectangular cavity 25 of the second double-ridge waveguide channel 27. 8. The lower end faces of the fifth rectangular cavity 29 and the sixth rectangular cavity 30 are connected and in a fitted state. The left end face of the seventh rectangular cavity 32 of the coaxial inner core channel 31 is on the same plane as the left end face of the fourth rectangular cavity 28 of the second double-ridge waveguide channel 27. The front end face of the seventh rectangular cavity 32 of the coaxial inner core channel 31 is on the same plane as the front end face of the fourth rectangular cavity 28 of the second double-ridge waveguide channel 27. The right end face of the seventh rectangular cavity 32 of the coaxial inner core channel 31 is on the same plane as the right end face of the fourth rectangular cavity 28 of the second double-ridge waveguide channel 27. The rear end face of the seventh rectangular cavity 32 of the coaxial inner core channel 31 is on the same plane as the rear end face of the sixth rectangular cavity 30 of the second double-ridge waveguide channel 27.The plane of symmetry of the seventh rectangular cavity 32 of the coaxial inner core channel 31 along the front-back direction is on the same plane as the plane of symmetry of the fifth rectangular cavity 29 of the second double-ridge waveguide channel 27 along the front-back direction. The plane of symmetry of the seventh rectangular cavity 32 of the coaxial inner core channel 31 along the left-right direction is on the same plane as the plane of symmetry of the fifth rectangular cavity 29 of the second double-ridge waveguide channel 27 along the left-right direction. Four coaxial bottom channels 39 with identical structure and size are formed on the fifth rectangular metal block 26. The four coaxial bottom channels 39 are arranged in a sequentially spaced manner from front to back. Each coaxial bottom channel 39 includes a tenth rectangular cavity 40, an eleventh rectangular cavity 41, a twelfth rectangular cavity 42, a third square metal matching block 43, and a third rectangular metal matching block. 44 and the fourth rectangular metal matching block 45, the tenth rectangular cavity 40, the eleventh rectangular cavity 41 and the twelfth rectangular cavity 42 are arranged from left to right and are connected sequentially. The length direction of the tenth rectangular cavity 40 and the eleventh rectangular cavity 41 is along the front-back direction, the width direction is along the left-right direction, and the height direction is along the up-down direction. The length direction of the twelfth rectangular cavity 42 is along the left-right direction, the width direction is along the front-back direction, and the height direction is along the up-down direction. The length of the tenth rectangular cavity 40 is equal to the length of the seventh rectangular cavity 32, and the width of the tenth rectangular cavity 40 is equal to the width of the seventh rectangular cavity 32. The length of the eleventh rectangular cavity 41 is equal to the length of the eighth rectangular cavity 33, and the width of the eleventh rectangular cavity 41 is equal to the width of the eighth rectangular cavity 33. The twelfth rectangular cavity 42... The length of the tenth rectangular cavity 40 is equal to the length of the ninth rectangular cavity 34. The width of the twelfth rectangular cavity 42 is equal to the width of the ninth rectangular cavity 34. The heights of the tenth rectangular cavity 40, the eleventh rectangular cavity 41, and the twelfth rectangular cavity 42 are equal and less than the height of the fifth rectangular metal block 26. The upper end faces of the tenth rectangular cavity 40, the eleventh rectangular cavity 41, and the twelfth rectangular cavity 42 are on the same plane as the upper end face of the fifth rectangular metal block 26. The right end face of the twelfth rectangular cavity 42 is on the same plane as the right end face of the fifth rectangular metal block 26. The right end face of the eleventh rectangular cavity 41 is connected to the left end face of the twelfth rectangular cavity 42 and is in a fitted state. The right end face of the tenth rectangular cavity 40 is connected to the left end face of the eleventh rectangular cavity 41 and is in a fitted state. 0. The eleventh rectangular cavity 41 and the twelfth rectangular cavity 42 are symmetrical about the same plane along the left and right directions. The third square metal matching block 43, the third rectangular metal matching block 44 and the fourth rectangular metal matching block 45 are arranged from left to right. The length of the third square metal matching block 43 and the third rectangular metal matching block 44 are along the front-back direction, the width is along the left-right direction, and the height is along the up-down direction. The length of the fourth rectangular metal matching block 45 is along the left-right direction, the width is along the front-back direction, and the height is along the up-down direction. The length of the third square metal matching block 43 is equal to the length of the first square metal matching block 35, and the width of the third square metal matching block 43 is equal to the width of the first square metal matching block 35.The height of the third square metal matching block 43 is equal to the height of the tenth rectangular cavity 40. The length of the third rectangular metal matching block 44 is equal to the length of the third square metal matching block 43, but the height of the third rectangular metal matching block 44 is less than the height of the third square metal matching block 43. The height of the fourth rectangular metal matching block 45 is equal to the height of the third rectangular metal matching block 44, but the width of the fourth rectangular metal matching block 45 is less than the width of the third rectangular metal matching block 44. The lower end faces of the third square metal matching block 43, the third rectangular metal matching block 44, and the fourth rectangular metal matching block 45 are on the same plane as the lower end face of the tenth rectangular cavity 40. The third square metal matching block 43 is located inside the tenth rectangular cavity 40. The left end face of the matching block 43 is connected to and in contact with the left end face of the tenth rectangular cavity 40. The third rectangular metal matching block 44 is located inside the tenth rectangular cavity 40. The left end face of the third rectangular metal matching block 44 is connected to and in contact with the right end face of the third square metal matching block 43. The fourth rectangular metal matching block 45 is located inside the tenth rectangular cavity 40, the eleventh rectangular cavity 41, and the twelfth rectangular cavity 42. The left end face of the fourth rectangular metal matching block 45 is connected to and in contact with the right end face of the third rectangular metal matching block 44. The right end face of the fourth rectangular metal matching block 45 is located between the left and right end faces of the twelfth rectangular cavity 42. The third square metal matching block 43, the third rectangular metal matching block 44, the fourth rectangular metal matching block 45, and... The symmetrical planes of the tenth rectangular cavity 40 along the left-right direction are located on the same plane; four coaxial bottom channels 39 are connected one-to-one with four coaxial inner core channels 31. In a corresponding coaxial bottom channel 39 and a coaxial inner core channel 31, the upper end face of the tenth rectangular cavity 40 of the coaxial bottom channel 39 is connected to and in a fitted state with the lower end face of the seventh rectangular cavity 32 of the coaxial inner core channel 31. The left end face of the tenth rectangular cavity 40 of the coaxial bottom channel 39 is located on the same plane as the left end face of the seventh rectangular cavity 32 of the coaxial inner core channel 31. The front end face of the tenth rectangular cavity 40 of the coaxial bottom channel 39 is located on the same plane as the front end face of the seventh rectangular cavity 32 of the coaxial inner core channel 31. The tenth rectangular cavity 40 of the coaxial bottom channel 39... The right end face of the 0th rectangular cavity 34 is on the same plane as the right end face of the seventh rectangular cavity 32 of the coaxial inner core channel 31. The rear end face of the tenth rectangular cavity 40 of the coaxial bottom channel 39 is on the same plane as the rear end face of the seventh rectangular cavity 32 of the coaxial inner core channel 31. Correspondingly, in a coaxial inner core channel 31 and a coaxial bottom channel 39, the right end face of the ninth rectangular cavity 34 and the right end face of the second rectangular metal matching block 38 in the coaxial inner core channel 31 and the right end face of the twelfth rectangular cavity 42 in the coaxial bottom channel 39 form a first coaxial interface surface. That is, the double-ridge to coaxial layer 3 has four first coaxial interface surfaces arranged sequentially from front to back. The four first coaxial interface surfaces of the double-ridge to coaxial layer 3 are used to connect with the adjustable reflective phase shifter group 4.The four TEM-mode signals output from the adjustable reflective phase shifter group 4 are connected.

[0037] In this embodiment, the adjustable reflective phase shifter group 4 includes four adjustable reflective phase shifters 46 with identical structure and size. The four adjustable reflective phase shifters 46 are arranged sequentially below the second rectangular metal block 9 from front to back. Each adjustable reflective phase shifter 46 includes a sixth rectangular metal block 47, a seventh rectangular metal block 48, an eighth rectangular metal block 49, a first metal piston 50, a second metal piston 51, a fifth rectangular metal matching block 52, a sixth rectangular metal matching block 53, a seventh rectangular metal matching block 54, an eighth rectangular metal matching block 55, a ninth rectangular metal matching block 56, a tenth rectangular metal matching block 57, an eleventh rectangular metal matching block 58, and a twelfth rectangular metal matching block. 59, the thirteenth rectangular metal matching block; 60, the fourteenth rectangular metal matching block; 61, the fifteenth rectangular metal matching block; 62, the sixteenth rectangular metal matching block; 63, the seventeenth rectangular metal matching block; 64, the eighteenth rectangular metal matching block; 65, the nineteenth rectangular metal matching block; 66, the twentieth rectangular metal matching block; 67, the twenty-first rectangular metal matching block; 68, the twenty-second rectangular metal matching block; 69, the sixth rectangular metal block; 47, the seventh rectangular metal block; 48, and the eighth rectangular metal block; 49 ... The sub-block 47 has a thirteenth rectangular cavity 70, a fourteenth rectangular cavity 71, a fifteenth rectangular cavity 72, a first elongated cavity 73, and a second elongated cavity 74. The thirteenth rectangular cavity 70, the fourteenth rectangular cavity 71, and the fifteenth rectangular cavity 72 are arranged from left to right and are connected sequentially. The first elongated cavity 73 and the second elongated cavity 74 are located to the right of the fifteenth rectangular cavity 72. The first elongated cavity 73 and the second elongated cavity 74 are arranged vertically and vertically. The length direction of the thirteenth rectangular cavity 70 and the fifteenth rectangular cavity 72 is along the vertical direction, the width direction is along the horizontal direction, and the height direction is along the front-back direction. The length direction of the fourteenth rectangular cavity 71 is along the horizontal direction, the width direction is along the vertical direction, and the height direction is along the front-back direction. The first elongated cavity 73 and the fifteenth rectangular cavity 72 are arranged vertically and vertically, with the first elongated cavity 73 and the second elongated cavity 74 being located to the right of the fifteenth rectangular cavity 72. Both elongated cavities 74 are rectangular cavities, with their length direction along the left-right direction, their width direction along the up-down direction, and their height direction along the front-back direction. The height of the thirteenth rectangular cavity 70, the fourteenth rectangular cavity 71, the fifteenth rectangular cavity 72, the first elongated cavity 73, and the second elongated cavity 74 is equal to the height of the sixth rectangular metal block 47. The length of the thirteenth rectangular cavity 70 is equal to the length of the fifteenth rectangular cavity 72, and the width of the thirteenth rectangular cavity 70 is greater than the width of the fifteenth rectangular cavity 72. The width of the fourteenth rectangular cavity 71 is greater than the length of the thirteenth rectangular cavity 70. The width of the first elongated cavity 73 and the second elongated cavity 74 is less than half the length of the thirteenth rectangular cavity 70, and the lengths of the first elongated cavity 73 and the second elongated cavity 74 are equal.The rear ends of the thirteenth rectangular cavity 70, the fourteenth rectangular cavity 71, the fifteenth rectangular cavity 72, the first elongated cavity 73, and the second elongated cavity 74 are on the same plane as the rear end of the sixth rectangular metal block 47. The left end face of the thirteenth rectangular cavity 70 is on the same plane as the left end face of the sixth rectangular metal block 47. The upper end face of the fourteenth rectangular cavity 71 is located below the upper end face of the sixth rectangular metal block 47. The right end face of the thirteenth rectangular cavity 70 is connected to and fits against the left end face of the fourteenth rectangular cavity 71. The right end face of the fourteenth rectangular cavity 71 is connected to and fits against the left end face of the fifteenth rectangular cavity 72. The planes of symmetry of the thirteenth rectangular cavity 70, the fourteenth rectangular cavity 71, and the fifteenth rectangular cavity 72 along the left-right direction are on the same plane. The first elongated cavity 73... The left end faces of the first and second elongated cavities 74 are connected to and fitted with the right end face of the fifteenth rectangular cavity 72. The right end faces of the first and second elongated cavities 73 and 74 are on the same plane as the right end face of the sixth rectangular metal block 47. The upper end face of the first elongated cavity 73 is on the same plane as the upper end face of the fifteenth rectangular cavity 72. The lower end face of the second elongated cavity 74 is on the same plane as the lower end face of the fifteenth rectangular cavity 72. There is a distance between the lower end face of the first elongated cavity 73 and the upper end face of the second elongated cavity 74. The first and second elongated cavities 73 and 74 are vertically symmetrical with respect to the plane of symmetry of the thirteenth rectangular cavity 70 in the left-right direction. A matching metal block 75 is provided inside the thirteenth rectangular cavity 70. The matching metal block 75 has a cuboid structure and a length of... The dimensions are along the left-right direction, the width along the up-down direction, and the height along the front-back direction. The length of the matching metal block 75 is greater than its width. The left end face of the matching metal block 75 is flush with the left end face of the thirteenth rectangular cavity 70. The rear end face of the matching metal block 75 is flush with the rear end face of the thirteenth rectangular cavity 70. The front end face of the matching metal block 75 is flush with the front end face of the thirteenth rectangular cavity 70. The upper end face of the matching metal block 75 is on the same plane as the lower end face of the first elongated cavity 73. The lower end face of the matching metal block 75 is on the same plane as the upper end face of the second elongated cavity 74. The seventh rectangular metal block 48 has sixteenth rectangular cavities 76, seventeenth rectangular cavities 77, eighteenth rectangular cavities 78, third elongated cavities 79 and fourth elongated cavities 80. The sixteenth rectangular cavity... 76. Rectangular cavities 77 and 78 are arranged sequentially from left to right and are connected. Elongated cavities 79 and 80 are located to the right of rectangular cavity 78, and are spaced vertically apart. Rectangular cavities 76 and 78 are arranged vertically along their length, horizontally along their width, and forward / backward along their height. Rectangular cavity 77 is arranged horizontally along its length, vertically along its width, and forward / backward along its height. Elongated cavities 79 and 80 are both rectangular cavities, with their length along horizontally, width along vertically, and height along forward / backward. The length of rectangular cavity 76 is the same as that of rectangular cavity 70.The width of the sixteenth rectangular cavity 76 is the same as the width of the thirteenth rectangular cavity 70; the length of the seventeenth rectangular cavity 77 is the same as the length of the fourteenth rectangular cavity 71; the width of the seventeenth rectangular cavity 77 is the same as the width of the fourteenth rectangular cavity 71; the length of the eighteenth rectangular cavity 78 is the same as the length of the fifteenth rectangular cavity 72; the width of the eighteenth rectangular cavity 78 is the same as the width of the fifteenth rectangular cavity 72; the length of the third elongated cavity 79 is the same as the length of the first elongated cavity 73; the width of the third elongated cavity 79 is the same as the width of the first elongated cavity 73; and the length of the fourth elongated cavity 80 is the same as the length of the second elongated cavity 74. The width of the fourth elongated cavity 80 is the same as the width of the second elongated cavity 74. The heights of the sixteenth rectangular cavity 76, the seventeenth rectangular cavity 77, the eighteenth rectangular cavity 78, the third elongated cavity 79, and the fourth elongated cavity 80 are the same as the height of the seventh rectangular metal block 48. The sixteenth rectangular cavity 76, the seventeenth rectangular cavity 77, the eighteenth rectangular cavity 78, the third elongated cavity 79, and the fourth elongated cavity 80 penetrate the seventh rectangular metal block 48 from front to back. The left end face of the sixteenth rectangular cavity 76 is flush with the left end face of the seventh rectangular metal block 48, and the upper end face of the seventeenth rectangular cavity 77 is located below the upper end face of the seventh rectangular metal block 48. The right end face of the sixteenth rectangular cavity 76 is fixedly connected to the left end face of the seventeenth rectangular cavity 77 and is in a fitted state. The right end face of the seventeenth rectangular cavity 77 is fixedly connected to the left end face of the eighteenth rectangular cavity 78 and is in a fitted state. The symmetrical planes of the sixteenth rectangular cavity 76, the seventeenth rectangular cavity 77, and the eighteenth rectangular cavity 78 along the left-right direction are located on the same plane. The upper end face of the sixteenth rectangular cavity 76 is located on the same plane as the upper end face of the thirteenth rectangular cavity 70. The third elongated cavity 79 is located above the fourth elongated cavity 80. The left end faces of both the third elongated cavity 79 and the fourth elongated cavity 80 are connected to the right end face of the eighteenth rectangular cavity 78. They are in a fitted state, with the right end faces of the third elongated cavity 79 and the fourth elongated cavity 80 on the same plane as the right end face of the seventh rectangular metal block 48; the upper end face of the third elongated cavity 79 on the same plane as the upper end face of the eighteenth rectangular cavity 78; the lower end face of the fourth elongated cavity 80 on the same plane as the lower end face of the eighteenth rectangular cavity 78; the lower end face of the third elongated cavity 79 on the same plane as the lower end face of the first elongated cavity 73; the upper end face of the fourth elongated cavity 80 on the same plane as the upper end face of the second elongated cavity 74; and a distance between the lower end face of the third elongated cavity 79 and the upper end face of the fourth elongated cavity 80.The first elongated cavity 73 and the second elongated cavity 74 are vertically symmetrical about the plane containing the left-right symmetry plane of the sixteenth rectangular cavity 76; the fifth rectangular metal matching block 52, the sixth rectangular metal matching block 53, the seventh rectangular metal matching block 54, the eighth rectangular metal matching block 55, the ninth rectangular metal matching block 56, the tenth rectangular metal matching block 57, the eleventh rectangular metal matching block 58, the twelfth rectangular metal matching block 59, the thirteenth rectangular metal matching block 60, the fourteenth rectangular metal matching block 61, the fifteenth rectangular metal matching block 62, the sixteenth rectangular metal matching block 63, the seventeenth rectangular metal matching block 64, the eighteenth rectangular metal matching block 65, the nineteenth rectangular metal matching block 66, and the second... 67, 68, 69 (length direction along left-right, width direction along up-down, height direction along front-back), 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 66, 67, 68, 69, 60, 61, 62, 63, 64, 65, 66, 66, 67, 68, 69, 60, 61, 62, 63, 64, 65, 66, 66, 67, 68, 69, 61, 62, 63, 64, 65, 6 ... The heights of metal matching block 65, the nineteenth rectangular metal matching block 66, the twentieth rectangular metal matching block 67, the twenty-first rectangular metal matching block 68, and the twenty-second rectangular metal matching block 69 are the same as the height of the seventh rectangular metal block 48. The width of the sixth rectangular metal matching block 53 is greater than the width of the fifth rectangular metal matching block 52. The width of the seventh rectangular metal matching block 54 is greater than the width of the sixth rectangular metal matching block 53. The width of the eighth rectangular metal matching block 55 is greater than the width of the seventh rectangular metal matching block 54. The width of the third elongated cavity 79 is greater than the width of the eighth rectangular metal matching block 55. The fifth rectangular metal matching block 52 and the fourteenth rectangular metal matching block 61 have the same dimensions. Metal matching block 53, the twelfth rectangular metal matching block 59, the fifteenth rectangular metal matching block 62, and the twentieth rectangular metal matching block 67 have the same dimensions; the seventh rectangular metal matching block 54, the eleventh rectangular metal matching block 58, the sixteenth rectangular metal matching block 63, and the nineteenth rectangular metal matching block 66 have the same dimensions; the eighth rectangular metal matching block 55, the tenth rectangular metal matching block 57, the seventeenth rectangular metal matching block 64, and the eighteenth rectangular metal matching block 65 have the same dimensions; the width of the thirteenth rectangular metal matching block 60 is equal to the width of the fifth rectangular metal matching block 52; and the width of the twenty-first rectangular metal matching block 68 is equal to the width of the fourteenth rectangular metal matching block 61.The total length of the fifth rectangular metal matching block 52, the sixth rectangular metal matching block 53, the seventh rectangular metal matching block 54, the eighth rectangular metal matching block 55, the ninth rectangular metal matching block 56, the tenth rectangular metal matching block 57, the eleventh rectangular metal matching block 58, the twelfth rectangular metal matching block 59, and the thirteenth rectangular metal matching block 60 is equal to the length of the seventh rectangular metal block 48. The width of the ninth rectangular metal matching block 56 is less than the width of the seventeenth rectangular cavity 77. The lengths of the fifth rectangular metal matching block 52, the sixth rectangular metal matching block 53, the seventh rectangular metal matching block 54, the eighth rectangular metal matching block 55, the ninth rectangular metal matching block 56, the tenth rectangular metal matching block 57, the eleventh rectangular metal matching block 58, the twelfth rectangular metal matching block 59, and the thirteenth rectangular metal matching block 60 are equal to the length of the seventh rectangular metal block 48. The front faces of metal matching blocks 59, 13th rectangular metal matching block 60, 14th rectangular metal matching block 61, 15th rectangular metal matching block 62, 16th rectangular metal matching block 63, 17th rectangular metal matching block 64, 18th rectangular metal matching block 65, 19th rectangular metal matching block 66, 20th rectangular metal matching block, 21st rectangular metal matching block 68, and 22nd rectangular metal matching block 69 are on the same plane as the front face of the 7th rectangular metal block 48. The 5th rectangular metal matching block 52, 6th rectangular metal matching block 53, and 7th rectangular metal matching block 54 are located within the 16th rectangular cavity 76. The 8th rectangular metal matching block 55 is located within the 16th rectangular cavity 76 and the 17th rectangular cavity 77. The 9th rectangular metal matching block 5... 6 is located within the seventeenth rectangular cavity 77; the tenth rectangular metal matching block 57 is located within the seventeenth rectangular cavity 77 and the eighteenth rectangular cavity 78; the eleventh rectangular metal matching block 58 is located within the eighteenth rectangular cavity 78; the twelfth rectangular metal matching block 59 is located within the eighteenth rectangular cavity 78 and the third elongated cavity 79; the thirteenth rectangular metal matching block 60 is located within the third elongated cavity 79; the fourteenth rectangular metal matching block 61, the fifteenth rectangular metal matching block 62, and the sixteenth rectangular metal matching block 63 are located within the sixteenth rectangular cavity 76; the seventeenth rectangular metal matching block 64 is located within the sixteenth rectangular cavity 76 and the seventeenth rectangular cavity 77; the eighteenth rectangular metal matching block 65 is located within the seventeenth rectangular cavity 77 and the eighteenth rectangular cavity 78; the nineteenth rectangular metal matching block... 66 is located within the eighteenth rectangular cavity 78; the twentieth rectangular metal matching block is located within the eighteenth rectangular cavity 78 and the fourth elongated cavity 80; the twenty-first rectangular metal matching block 68 is located within the fourth elongated cavity 80; the twenty-second rectangular metal matching block 69 is located within the sixteenth rectangular cavity 76; the left end face of the fifth rectangular metal matching block 52 is flush with the left end face of the seventh rectangular metal block 48; the right end face of the fifth rectangular metal matching block 52 is fixedly connected to and in contact with the left end face of the sixth rectangular metal matching block 53; the right end face of the sixth rectangular metal matching block 53 is fixedly connected to and in contact with the left end face of the seventh rectangular metal matching block 54; and the right end face of the seventh rectangular metal matching block 54 is fixedly connected to and in contact with the left end face of the eighth rectangular metal matching block 55.The lower end faces of the fifth rectangular metal matching block 52, the sixth rectangular metal matching block 53, the seventh rectangular metal matching block 54, and the eighth rectangular metal matching block 55 are located on the same plane. The upper end faces of the fifth rectangular metal matching block 52, the sixth rectangular metal matching block 53, the seventh rectangular metal matching block 54, and the eighth rectangular metal matching block 55 are respectively separated from the upper end face of the sixteenth rectangular cavity 76 by a distance. The ninth rectangular metal matching block 56 is located inside the seventeenth rectangular cavity 77. The right end face of the eighth rectangular metal matching block 55 is fixedly connected to the left end face of the ninth rectangular metal matching block 56 and is in a fitted state. The left end face of the tenth rectangular metal matching block 57 is fixedly connected to the right end face of the ninth rectangular metal matching block 56 and is in a fitted state. The right end face of metal matching block 57 is fixedly connected to the left end face of the eleventh rectangular metal matching block 58 and is in a fitted state. The right end face of the eleventh rectangular metal matching block 58 is fixedly connected to the left end face of the twelfth rectangular metal matching block 59 and is in a fitted state. The right end face of the twelfth rectangular metal matching block 59 is fixedly connected to the left end face of the thirteenth rectangular metal matching block 60 and is in a fitted state. The right end face of the thirteenth rectangular metal matching block 60 is flush with the right end face of the seventh rectangular metal block 48. The lower end faces of the tenth rectangular metal matching block 57, the eleventh rectangular metal matching block 58, the twelfth rectangular metal matching block 59, and the thirteenth rectangular metal matching block 60 are located on the same plane. The tenth rectangular metal matching block 57 and the eleventh rectangular metal matching block 58... The upper surfaces of the twelfth rectangular metal matching block 59 and the thirteenth rectangular metal matching block 60 are respectively separated by a distance from the upper surface of the third elongated cavity 79. The fifth rectangular metal matching block 52 and the fourteenth rectangular metal matching block 61 are vertically symmetrical with respect to the plane of symmetry of the sixteenth rectangular cavity 76 along the left and right directions. The sixth rectangular metal matching block 53 and the fifteenth rectangular metal matching block 62 are vertically symmetrical with respect to the plane of symmetry of the sixteenth rectangular cavity 76 along the left and right directions. The seventh rectangular metal matching block 54 and the sixteenth rectangular metal matching block 63 are vertically symmetrical with respect to the plane of symmetry of the sixteenth rectangular cavity 76 along the left and right directions. The eighth rectangular metal matching block 55 and the seventeenth rectangular metal matching block 64 are vertically symmetrical with respect to the plane of symmetry of the sixteenth rectangular cavity 76 along the left and right directions. The plane containing the left-right symmetry plane of the six rectangular cavities 76 is vertically symmetrical. The tenth rectangular metal matching block 57 and the eighteenth rectangular metal matching block 65 are vertically symmetrical with respect to the plane containing the left-right symmetry plane of the sixteenth rectangular cavity 76. The eleventh rectangular metal matching block 58 and the nineteenth rectangular metal matching block 66 are vertically symmetrical with respect to the plane containing the left-right symmetry plane of the sixteenth rectangular cavity 76. The twelfth rectangular metal matching block 59 and the twentieth rectangular metal matching block 67 are vertically symmetrical with respect to the plane containing the left-right symmetry plane of the sixteenth rectangular cavity 76. The thirteenth rectangular metal matching block 60 and the twenty-first rectangular metal matching block 68 are vertically symmetrical with respect to the plane containing the left-right symmetry plane of the sixteenth rectangular cavity 76.The left end face of the 22nd rectangular metal matching block 69 is flush with the left end face of the 7th rectangular metal block 48. The symmetrical plane of the 22nd rectangular metal matching block 69 along the left-right direction is on the same plane as the symmetrical plane of the 16th rectangular cavity 76 along the left-right direction. The length of the 22nd rectangular metal matching block 69 is less than the length of the 16th rectangular cavity 76. There is a distance between the upper end face of the 22nd rectangular metal matching block 69 and the lower end face of the 5th rectangular metal matching block 52. There is a distance between the lower end face of the 22nd rectangular metal matching block 69 and the upper end face of the 14th rectangular metal matching block 61. The upper end face of the 22nd rectangular metal matching block 69 and the lower end face of the 3rd elongated cavity 79 are on the same plane. The lower end face of the 22nd rectangular metal matching block 69 and the 7th rectangular cavity 48 are on the same plane. The upper end face of the fourth elongated cavity 80 is located on the same plane. From left to right, the ninth rectangular metal matching block 56 has a first rectangular through hole 81, a second rectangular through hole 82, and a third rectangular through hole 83. The length of the first rectangular through hole 81, the second rectangular through hole 82, and the third rectangular through hole 83 is along the vertical direction, the width is along the horizontal direction, and the height is along the front-back direction. The height of the first rectangular through hole 81, the second rectangular through hole 82, and the third rectangular through hole 83 is the same as the height of the seventh rectangular metal block 48. The front end face of the first rectangular through hole 81, the second rectangular through hole 82, and the third rectangular through hole 83 is located on the same plane as the front end face of the seventh rectangular metal block 48. The lengths of the first rectangular through hole 81, the second rectangular through hole 82, and the third rectangular through hole 83 are equal. The widths of the first rectangular through hole 81, the second rectangular through hole 82, and the second rectangular through hole 82 are equal. The distance between the right end face of the first rectangular through hole 81 and the left end face of the second rectangular channel is the same as the distance between the left end face of the third rectangular channel and the right end face of the second rectangular channel. The symmetrical planes of the seventeenth rectangular cavity 77, the ninth rectangular metal matching block 56, and the second rectangular through hole 82 in the left and right directions coincide. The symmetrical planes of the seventeenth rectangular cavity 77, the ninth rectangular metal matching block 56, and the second rectangular through hole 82 in the up and down directions also coincide. The first metal piston 50 is disposed in the third elongated cavity 79. The first metal piston 50 includes the ninth metal strip 84 and a core formed in the ninth metal strip 89. The fifth elongated cavity 85 on the ninth metal strip 84 has its length direction along the left-right direction, its width direction along the up-down direction, and its height direction along the front-back direction. The length of the fifth elongated cavity 85 is less than the length of the ninth metal strip 84, the width of the fifth elongated cavity 85 is less than the width of the ninth metal strip 84, and the height of the fifth elongated cavity 85 is less than the height of the ninth metal strip 84. The width of the ninth metal strip 84 is the same as the width of the third elongated cavity 79, and the height of the ninth metal strip 84 is equal to twice the height of the first elongated cavity 73 plus the height of the third elongated cavity 79. The width of the fifth elongated cavity 85 is equal to the width of the thirteenth rectangular metal matching block 60, and the height of the fifth elongated cavity 85 is equal to the height of the thirteenth rectangular metal matching block 60.The left end face of the fifth elongated cavity 85 is on the same plane as the left end face of the ninth metal strip 84. The upper end face of the fifth elongated cavity 85 is located below the upper end face of the ninth metal strip 84, and the lower end face of the fifth elongated cavity 85 is located above the lower end face of the ninth metal strip 84. The front end face of the fifth elongated cavity 85 is located behind the front end face of the ninth metal strip 84, and the rear end face of the fifth elongated cavity 85 is located in front of the rear end face of the ninth metal strip 84. The right end face of the fifth elongated cavity 85 is located to the left of the right end face of the ninth metal strip 84. The upper end face of the fifth elongated cavity 85 is on the same plane as the upper end face of the thirteenth rectangular metal matching block 60, and the lower end face of the fifth elongated cavity 85 is on the same plane as the lower end face of the thirteenth rectangular metal matching block 60. The end face of the fifth elongated cavity 85 is on the same plane as the front end face of the thirteenth rectangular metal matching block 60. The rear end face of the fifth elongated cavity 85 is on the same plane as the rear end face of the thirteenth rectangular metal matching block 60. The vertical symmetry planes of the fifth elongated cavity 85, the ninth metal strip 84, and the third elongated cavity 79 are on the same plane. The horizontal symmetry planes of the fifth elongated cavity 85, the ninth metal strip 84, and the third elongated cavity 79 are on the same plane. The thirteenth rectangular metal matching block 60 is inserted into the fifth elongated cavity 85. The first metal piston 50 can move horizontally along the thirteenth rectangular metal matching block 60 within the third elongated cavity 79, with the range of movement extending from the fifth elongated cavity 85. The right end face of the fifth elongated cavity 85 is located at the point where it mates with the right end face of the thirteenth rectangular metal matching block 60, and the left end face of the fifth elongated cavity 85 is located on the same plane as the right end face of the thirteenth rectangular metal matching block 60. The second metal piston 51 is disposed within the fourth elongated cavity 80. The second metal piston 51 includes a tenth metal strip 86 and a sixth elongated cavity 87 formed on the tenth metal strip 86. The length of the tenth metal strip 86 and the sixth elongated cavity 87 are along the left-right direction, the width is along the up-down direction, and the height is along the front-back direction. The length of the sixth elongated cavity 87 is less than the length of the tenth metal strip 86, the width of the sixth elongated cavity 87 is less than the width of the tenth metal strip 86, and the height of the sixth elongated cavity 87 is less than the height of the tenth metal strip 86. The width of the tenth metal strip 86 is equal to the width of the fourth elongated cavity 80. The widths of the four elongated cavities are the same. The height of the tenth metal strip 86 is equal to twice the height of the second elongated cavity 74 plus the sum of the heights of the fourth elongated cavity 80. The width of the sixth elongated cavity 87 is equal to the width of the twenty-first rectangular metal matching block 68. The height of the sixth elongated cavity 87 is equal to the height of the twenty-first rectangular metal matching block 68. The left end face of the sixth elongated cavity 87 is on the same plane as the left end face of the tenth metal strip 86. The upper end face of the sixth elongated cavity 87 is below the upper end face of the tenth metal strip 86. The lower end face of the sixth elongated cavity 87 is above the lower end face of the tenth metal strip 86. The front end face of the sixth elongated cavity 87 is behind the front end face of the tenth metal strip 86. The rear end face of the sixth elongated cavity 87 is in front of the rear end face of the tenth metal strip 86.The right end face of the sixth elongated cavity 87 is located to the left of the right end face of the tenth metal strip 86. The upper end face of the sixth elongated cavity 87 is on the same plane as the upper end face of the twenty-first rectangular metal matching block 68. The lower end face of the sixth elongated cavity 87 is on the same plane as the lower end face of the twenty-first rectangular metal matching block 68. The front end face of the sixth elongated cavity 87 is on the same plane as the front end face of the twenty-first rectangular metal matching block 68. The rear end face of the sixth elongated cavity 87 is on the same plane as the rear end face of the twenty-first rectangular metal matching block 68. The vertical plane of symmetry of the sixth elongated cavity 87, the vertical plane of symmetry of the tenth metal strip 86, and the vertical plane of symmetry of the fourth elongated cavity 80 are on the same plane. The left-right symmetry planes of the tenth metal strip 86 and the fourth elongated cavity 80 are located on the same plane. The twenty-first rectangular metal matching block 68 is inserted into the sixth elongated cavity 87. The second metal piston 51 can move left and right along the twenty-first rectangular metal matching block 68 within the fourth elongated cavity 80. The range of movement is from the point where the right end face of the sixth elongated cavity 87 and the right end face of the twenty-first rectangular metal matching block 68 meet to the point where the left end face of the sixth elongated cavity 87 and the right end face of the twenty-first rectangular metal matching block 68 are on the same plane. The eighth metal block is provided with structures similar to the thirteenth rectangular cavity 70, the fourteenth rectangular cavity 71, the fifteenth rectangular cavity 72, and the matching metal on the sixth metal block. The seventh rectangular metal block 48 is mirror-symmetrical to the seventh rectangular metal block 48. The four adjustable reflective phase shifters 46 are named, from front to back, the first adjustable reflective phase shifter, the second adjustable reflective phase shifter, the third adjustable reflective phase shifter, and the fourth adjustable reflective phase shifter. The front end face of the sixth rectangular metal block 47 in the first adjustable reflective phase shifter is on the same plane as the front end face of the second rectangular metal block 9. The rear end face of the eighth rectangular metal block 49 in the first adjustable reflective phase shifter is connected to and in contact with the front end face of the sixth rectangular metal block 47 in the second adjustable reflective phase shifter. The rear end face of the eighth rectangular metal block 49 in the second adjustable reflective phase shifter is... The front end face of the sixth rectangular metal block 47 in the third adjustable reflective phase shifter is connected to and in contact with the front end face of the sixth rectangular metal block 47 in the fourth adjustable reflective phase shifter. The rear end face of the eighth rectangular metal block in the fourth adjustable reflective phase shifter is connected to and in contact with the front end face of the sixth rectangular metal block 47 in the fourth adjustable reflective phase shifter. The rear end face of the eighth rectangular metal block in the fourth adjustable reflective phase shifter is on the same plane as the rear end face of the second rectangular metal block 9. The upper end faces of the sixth rectangular metal block 47, the seventh rectangular metal block 48, and the eighth rectangular metal block 49 in the first, second, third, and fourth adjustable reflective phase shifters are connected to and in contact with the lower end face of the second rectangular metal block 9.The left end faces of the sixth rectangular metal block 47, the seventh rectangular metal block 48, and the eighth rectangular metal block 49 in the first, second, third, and fourth adjustable reflective phase shifters are connected to and in contact with the right end faces of the third rectangular metal block 24, the fourth rectangular metal block 25, and the fifth rectangular metal block 26. The lower end faces of the sixth rectangular metal block 47, the seventh rectangular metal block 48, and the eighth rectangular metal block 49 in the first, second, third, and fourth adjustable reflective phase shifters are located on the same plane as the lower end face of the fifth rectangular metal block 26. The right end faces of the sixth rectangular metal block 47, the seventh rectangular metal block 48, and the eighth rectangular metal block 49 in the adjustable reflective phase shifter, the second adjustable reflective phase shifter, the third adjustable reflective phase shifter, and the fourth adjustable reflective phase shifter are located to the left of the right end face of the second rectangular metal block 9; the left end face of the region between the upper end face of the thirteenth rectangular cavity 70 in the sixth rectangular metal block 47 and the upper end face of the matching metal block 75 in the sixth rectangular metal block 47, the left end face of the fifth rectangular metal matching block 52, the left end face of the region between the upper end face of the sixteenth rectangular cavity 76 and the upper end face of the twenty-second rectangular metal matching block 69, and the eighth rectangular metal block 49 in each adjustable reflective phase shifter 46. The left end face of the region between the upper end face of the rectangular cavity 70 in the sixth rectangular metal block 47 (which is mirror-symmetrical to the thirteenth rectangular cavity 70 in the sixth rectangular metal block 47) and the upper end face of the matching metal block 75 (which is mirror-symmetrical to the matching metal block 75 in the sixth rectangular metal block 47) in each adjustable reflective phase shifter 46, the left end face of the region between the lower end face of the thirteenth rectangular cavity 70 in the sixth rectangular metal block 47 and the lower end face of the matching metal block 75 in the sixth rectangular metal block 47, the left end face of the fourteenth rectangular metal matching block 61, the left end face of the region between the lower end face of the sixteenth rectangular cavity 76 and the lower end face of the twenty-second rectangular metal matching block 69, and the eighth rectangular... The lower end face of the rectangular cavity in metal block 49 that is mirror-symmetrical to the thirteenth rectangular cavity 70 in the sixth rectangular metal block 47, and the left end face of the region between the lower end face of the matching metal block 75 that is mirror-symmetrical to the matching metal block 75 in the sixth rectangular metal block 47, constitute the second coaxial interface surface. That is, the adjustable reflective phase shifter 46 has four second coaxial interface surfaces and four third coaxial interface surfaces. The four second coaxial interface surfaces of the adjustable reflective phase shifter 46 correspond one-to-one with the four first coaxial interface surfaces of the double-ridged coaxial layer 3. In the corresponding second coaxial interface surface and the first coaxial interface surface, the second coaxial interface surface and the first coaxial interface surface are fixedly connected and in a fitted state.Furthermore, the left end face of the fifth rectangular metal matching block 52 of the adjustable reflective phase shifter 46, where the second coaxial interface is located, is fixedly connected to and completely overlaps with the right end face of the second rectangular metal matching block 38 in the coaxial inner core channel 31 where the first coaxial interface is located; the adjustable reflective phase shifter 46 has four third coaxial interface faces for connecting to the 1-to-4 coaxial feed layer 5, and receiving four TEM mode signals transmitted from the 1-to-4 coaxial feed layer 5.

[0038] In this embodiment, the one-to-four coaxial feed layer 5 includes a ninth rectangular metal block 88 and a tenth rectangular metal block 89. The length direction of the ninth rectangular metal block 88 and the tenth rectangular metal block 89 is along the left-right direction, the width direction is along the front-back direction, and the height direction is along the up-down direction. The width of the ninth rectangular metal block 88 and the tenth rectangular metal block 89 is equal to the width of the fifth metal block. The total length of the ninth rectangular metal block 88 and the tenth rectangular metal block 89 is equal to the length of the fifth metal block. The sum of the heights of the ninth rectangular metal block 88, the tenth rectangular metal block 89, the third rectangular metal block 24, the fourth rectangular metal block 25, and the fifth rectangular metal block 26 is equal to the height of the fifth metal block. The six rectangular metal blocks 47 are all of equal width. The ninth rectangular metal block 88 and the tenth rectangular metal block 89 are located below the fifth rectangular metal block 26. The ninth rectangular metal block 88 and the tenth rectangular metal block 89 are stacked from left to right. The left end face of the ninth rectangular metal block 88 is on the same plane as the left end face of the fifth metal block. The right end face of the ninth rectangular metal block 88 is fixedly connected to the left end face of the tenth rectangular metal block 89 and is in a close fit. The right end face of the tenth rectangular metal block 89 is on the same plane as the right end face of the fifth metal block. The front end faces of the ninth rectangular metal block 88 and the tenth rectangular metal block 89 are on the same plane as the front end face of the fifth metal block. The rear end faces of the ninth rectangular metal block 88 and the tenth rectangular metal block 89 are on the same plane as the rear end face of the fifth metal block. The upper surfaces of the ninth rectangular metal block 88 and the tenth rectangular metal block 89 are fixedly connected to and in contact with the lower surface of the fifth metal block. The right surface of the tenth rectangular metal block 89 is fixedly connected to and in contact with the left surface of the sixth rectangular metal block 47, the seventh rectangular metal block 48, and the eighth rectangular metal block 49 of the four adjustable reflective phase shifters 46. The lower surfaces of the ninth rectangular metal block 88 and the tenth rectangular metal block 89 are located on the same plane as the lower surfaces of the sixth rectangular metal block 47, the seventh rectangular metal block 48, and the eighth rectangular metal block 49 of the four adjustable reflective phase shifters 46. The ninth rectangular metal block 88 has a nineteenth rectangular cavity 90, a twentieth rectangular cavity 91, a twenty-first rectangular cavity 92, and a twenty-second rectangular cavity 93. A twenty-third rectangular metal matching block 94, a twenty-fourth rectangular metal matching block 95, and a twenty-fifth rectangular metal matching block 96 are disposed within rectangular cavity 92. A twenty-sixth rectangular metal matching block 97 is disposed within rectangular cavity 93. Rectangular cavities 90, 91, 92, and 93 are sequentially connected. The length of rectangular cavities 90, 91, and 92 is along the front-back direction, the width along the left-right direction, and the height along the up-down direction. The length of rectangular metal matching blocks 94, 95, and 96 is along the up-down direction, the width along the front-back direction, and the height along the left-right direction.The length of the twenty-second rectangular cavity 93 is along the left-right direction, the width is along the front-back direction, and the height is along the top-bottom direction. The length of the twenty-sixth rectangular metal matching block 97 is along the left-right direction, the width is along the front-back direction, and the height is along the top-bottom direction. The nineteenth rectangular cavity 90, the twentieth rectangular cavity 91, and the twenty-first rectangular cavity 92 have the same length. The width of the twentieth rectangular cavity 91 is less than the width of the nineteenth rectangular cavity 90, the width of the twenty-first rectangular cavity 92 is less than the width of the twentieth rectangular cavity 91, the width of the twenty-second rectangular cavity 93 is less than the length of the twenty-first rectangular cavity 92, the height of the twenty-second rectangular cavity 93 is less than the height of the twenty-first rectangular cavity 92, and the width of the twenty-sixth rectangular metal matching block 97 is less than the width of the twenty-second rectangular cavity 92. The width of cavity 93, the height of the twenty-sixth rectangular metal matching block 97 is less than the height of the twenty-second rectangular cavity 93, the lower end face of the nineteenth rectangular cavity 90 is on the same plane as the lower end face of the ninth rectangular metal block 88, the lower end face of the twentieth rectangular cavity 91 is fixedly connected to the upper end face of the nineteenth rectangular cavity 90 and is in a fitted state, the lower end face of the twenty-first rectangular cavity 92 is fixedly connected to the upper end face of the twenty-second rectangular cavity 91 and is in a fitted state, the left end face of the twenty-second rectangular cavity 93 is fixedly connected to the right end face of the twenty-first rectangular cavity 92 and is in a fitted state, the symmetrical planes of the nineteenth rectangular cavity 90, the twenty-second rectangular cavity 91 and the twenty-first rectangular cavity 92 along the front-back direction are on the same plane, the nineteenth rectangular cavity 90, the twenty-second rectangular cavity 91, the twenty-first rectangular cavity 92 and the twenty-third rectangular cavity 93 are fixedly connected to the right end face of the twenty-first rectangular cavity 92 and are in a fitted state, the symmetrical planes of the nineteenth rectangular cavity 90, the twenty-second rectangular cavity 91 and the twenty-third rectangular cavity 92 along the front-back direction are on the same plane, the nineteenth rectangular cavity 90, the twenty-second rectangular cavity 91, the twenty-third rectangular cavity 92 and the twenty-second rectangular cavity 93 are fixedly connected to the right end face of the twenty-first rectangular cavity 92, the symmetrical planes of the nineteenth rectangular cavity 90, the twenty-second rectangular cavity 91 and the twenty-third rectangular cavity 92 are in a fitted state, the symmetrical planes of the nineteenth rectangular cavity 90, the twenty-second rectangular cavity 91 and the twenty-third rectangular cavity 92 are on the same plane, the symmetrical planes of the nineteenth rectangular cavity 90 Cavity 92 and the twenty-second rectangular cavity 93 are located on the same plane along their left and right symmetry planes. Rectangular metal matching blocks 94, 95, and 96 have the same width. The width of the twenty-third rectangular metal matching block 94 is less than the length of the twenty-first rectangular cavity 92, and the length of the twenty-third rectangular metal matching block 94 is less than the height of the twenty-first rectangular cavity 92. The length of the twenty-fourth rectangular metal matching block 95 is less than the length of the twenty-third rectangular metal matching block 94, and the length of the twenty-fifth rectangular metal matching block 96 is less than the length of the twenty-fourth rectangular metal matching block 95. The twenty-third rectangular metal matching block 94, the twenty-fourth rectangular metal matching block 95, and the twenty-fifth rectangular metal matching block... The sum of the heights of the 96 rectangular blocks is less than the width of the 21st rectangular cavity 92. The height of the 26th rectangular metal matching block 97 is the same as the length of the 25th rectangular metal matching block 96, and the width of the 26th rectangular metal matching block 97 is less than the width of the 25th rectangular metal matching block 96. The 23rd rectangular metal matching blocks 94, 24th rectangular metal matching blocks 95, and 25th rectangular metal matching blocks 96 are all located within the 21st rectangular cavity 92. The 26th rectangular metal matching block 97 is located within the 21st rectangular cavity 92 and the 22nd rectangular cavity 93. The 23rd rectangular metal matching blocks 94, 24th rectangular metal matching blocks 95, 25th rectangular metal matching blocks 96, and 26th rectangular metal matching blocks 97 are connected sequentially from left to right.The left end face of the 23rd rectangular metal matching block 94 is fixedly connected to and in contact with the left end face of the 21st rectangular cavity 92, and is fixed on the 9th rectangular metal block 88. The left end face of the 24th rectangular metal matching block 95 is fixedly connected to and in contact with the right end face of the 23rd rectangular metal matching block 94. The left end face of the 25th rectangular metal matching block 96 is fixedly connected to and in contact with the right end face of the 24th rectangular metal matching block 95. The left end face of the 26th rectangular metal matching block 97 is fixedly connected to and in contact with the right end face of the 25th rectangular metal matching block 96. The upper end faces of the 23rd rectangular metal matching block 94, the 24th rectangular metal matching block 95, the 25th rectangular metal matching block 96, and the 26th rectangular metal matching block 97 are located on the same plane. The plane of symmetry between the 23rd rectangular metal matching block 94, the 24th rectangular metal matching block 95, the 25th rectangular metal matching block 96, the 26th rectangular metal matching block 97, and the 22nd rectangular cavity 93 is located on the same plane along the left-right direction. On the same plane, the right end face of the twenty-sixth rectangular metal matching block 97 and the right end face of the twenty-second rectangular cavity 93 are located on the same plane. The vertical symmetry plane of the twenty-sixth rectangular metal matching block 97 and the vertical symmetry plane of the twenty-second rectangular cavity 93 are located on the same plane. A one-to-four coaxial power supply network 98 is provided on the tenth rectangular metal block 89. The one-to-four coaxial power supply network 98 is composed of a one-to-four power divider. The one-to-four power divider has one input port and four output ports. The input port is connected to the right end face of the twenty-sixth rectangular metal matching block 97. The input port of the 1-to-4 power divider is also the input port of the 1-to-4 coaxial feed layer 5, used to input one external TE10 mode signal. The four output ports of the 1-to-4 power divider are the four output ports of the 1-to-4 coaxial feed layer 5, used to output the four generated equal-amplitude and in-phase TEM mode signals one-to-one. The four output ports of the 1-to-4 coaxial feed layer 5 are connected one-to-one to the four third coaxial interface surfaces of the adjustable reflective phase shifter group 4.

[0039] To verify the performance of the one-dimensional phase-sweeping waveguide slot antenna array based on an adjustable reflective phase shifter of the present invention, Ansoft HFSS was used to simulate the one-dimensional phase-sweeping waveguide slot antenna array based on an adjustable reflective phase shifter of the present invention. The simulation results of the gain and standing wave ratio of the antenna element composed of a single single-ridge rectangular channel and a single first double-ridge waveguide channel and the corresponding slot radiating element of the one-dimensional phase-sweeping waveguide slot antenna array based on an adjustable reflective phase shifter of the present invention are as follows: Figure 11 As shown, the simulation results of the antenna element composed of a single single-ridge rectangular channel and a single first double-ridge waveguide channel and the corresponding slot radiating element of the one-dimensional phase-sweeping waveguide slot antenna array based on an adjustable reflective phase shifter of the present invention are as follows: Figure 12As shown, the simulation results of the relationship between the output phase of a single adjustable reflective phase shifter group and the moving distance M1 of the two metal pistons in the one-dimensional phase-sweep waveguide slot antenna array based on adjustable reflective phase shifters of the present invention are as follows: Figure 13 As shown, the simulation results of the output amplitude and phase curves of the one-to-four coaxial feed network of the one-dimensional phase-sweep waveguide slot antenna array based on the adjustable reflective phase shifter of the present invention are as follows: Figure 14 As shown, the simulation results of the S-parameters and gain curves of the one-dimensional phase-sweep waveguide slot antenna array based on the adjustable reflective phase shifter of the present invention are as follows: Figure 15 As shown, the simulation results of the 27GHz frequency E-plane normalized radiation pattern (T1,T2,T3) of the one-dimensional phase-sweep waveguide slot antenna array based on the adjustable reflective phase shifter of the present invention are as follows: Figure 16 As shown, the simulation results of the 27GHz frequency E-plane normalized radiation pattern (T1, T4, T5) of the one-dimensional phase-sweep waveguide slot antenna array based on the adjustable reflective phase shifter of the present invention are as follows: Figure 17 As shown.

[0040] Figure 11 In the middle, |S 11 |S represents the return loss when a signal is input to an antenna element consisting of a single-ridged rectangular channel, a single first double-ridged waveguide channel, and a corresponding slot radiating element. It can be seen that in the range of 26.8-27.2 GHz, |S 11 Both are less than -10dB. Realized Gain represents the gain of the antenna element composed of a single single-ridge rectangular channel and a single first double-ridge waveguide channel with the corresponding slot radiating element. It can be seen that in the range of 26.8-27.2GHz, the gain of the antenna element composed of a single single-ridge rectangular channel and a single first double-ridge waveguide channel with the corresponding slot radiating element is above 22.5dBi, which has a high gain.

[0041] Figure 12 In the diagram, xoz-plane represents the normalized radiation pattern of an antenna element composed of a single single-ridge rectangular channel, a single first double-ridge waveguide channel, and a corresponding slot radiating element in the E-plane, and yoz-plane represents the normalized radiation pattern of an antenna element composed of a single single-ridge rectangular channel, a single first double-ridge waveguide channel, and a corresponding slot radiating element in the H-plane. It can be seen that the difference between the main lobe and the first sidelobe is 20dB, and the antenna element composed of a single single-ridge rectangular channel, a single first double-ridge waveguide channel, and a corresponding slot radiating element has excellent low sidelobe performance in the H-plane.

[0042] Figure 13In the figure, the curve represents the relationship between the output phase of a single adjustable reflective phase shifter and the moving distance M1 of the first and second metal pistons. The first and second metal pistons move simultaneously and the moving distance is the same. It can be seen that when the moving distance M1 of the two metal pistons moves from 0 to 10 mm, the output phase of the adjustable reflective phase shifter changes linearly from 5° to -770° at 27 GHz. The phase output adjustment interval of the adjustable reflective phase shifter is basically the same for different frequencies.

[0043] Figure 14 In the middle, |S 1”1” | represents the return loss of the 1-to-4 coaxial feed layer, |S 2”1” |,|S 3”1” |,|S 4”1” |,|S 5”1” | represents the transmission coefficient from the input port to the four output ports, respectively, and ∠S 2”1” ,∠S 3”1” ,∠S 4”1” ,∠S 5”1” , representing the phase from the input port to the four output ports respectively, it can be seen that |S 1”1” | Less than -25dB in the 26.5-27.5GHz frequency range, |S 2”1” |,|S 3”1” |,|S 4”1” |,|S 5”1” |It remained basically consistent at -6dB, ∠S 2”1” ,∠S 3”1” ,∠S 4”1” ,∠S 5”1” Maintaining overlap across the entire frequency band, the 1-to-4 coaxial feed layer exhibits excellent performance, capable of splitting the input TE10 mode signal into four equal-amplitude, in-phase TEM mode signals for output.

[0044] The phase-scanning slot antenna array based on an adjustable reflective phase shifter of the present invention consists of antenna elements composed of four identical single-ridge rectangular channels, a single first double-ridge waveguide channel, and a corresponding slot radiating element. Each antenna element composed of a single single-ridge rectangular channel, a single first double-ridge waveguide channel, and a corresponding slot radiating element has a phase control port of an adjustable reflective phase shifter, which controls the position of two metal pistons (first metal piston and second metal piston) in each adjustable reflective phase shifter in the antenna array. The first metal piston and the second metal piston move simultaneously and by the same distance, as shown in Table 1, and there are a total of 5 states. At time T1, the two metal pistons in the adjustable reflective phase shifters of all radiating slot units are at position M1 = 0 mm; at time T2, the two metal pistons in the adjustable reflective phase shifters of the first radiating slot unit are at M1 = 0 mm, the two metal pistons in the adjustable reflective phase shifters of the second radiating slot unit are at M1 = 1 mm, the two metal pistons in the adjustable reflective phase shifters of the third radiating slot unit are at M1 = 2 mm, the two metal pistons in the adjustable reflective phase shifters of the fourth radiating slot unit are at M1 = 3 mm, and so on for T3, T4, and T5.

[0045] Table 1. Positions M1 (mm) of the first and second metal pistons

[0046]

[0047] Figure 15 In the diagram, T1, T2, T3, T4, and T5 represent the return loss when the E-plane beam of the one-dimensional phase-sweeping waveguide slot antenna array based on the tunable reflective phase shifter points in different directions. Realized Gain represents the actual gain of the one-dimensional phase-sweeping waveguide slot antenna array based on the tunable reflective phase shifter. It can be seen that during the scanning process of the E-plane beam of the one-dimensional phase-sweeping waveguide slot antenna array based on the tunable reflective phase shifter, its return loss is always below -15dB in the 26.8-27.2GHz frequency band, and the gain of the one-dimensional phase-sweeping waveguide slot antenna array based on the tunable reflective phase shifter is above 27dBi in the 26.8-27.2GHz frequency band.

[0048] By adjusting the adjustable reflective phase shifter group as shown in Table 1, five states of the E-plane radiation pattern of the one-dimensional phase-sweep waveguide slot antenna array based on the adjustable reflective phase shifter can be obtained. Figure 16 , Figure 17As shown, the antenna beam can achieve a scanning range of ±45°, within which the antenna array gain drops by no more than 3dB. It's important to note that the beam scanning is not discrete; only five states were used in the simulation. In reality, it depends on the precision of the metal piston's movement. If the metal piston moves with a precision of 0.1mm, the number of scanning beams of the antenna array will increase, enabling continuous beam scanning.

[0049] In summary, the one-dimensional phase-scanning waveguide slot antenna array based on an adjustable reflective phase shifter of the present invention provides a phase-scanning slot antenna array with high gain, low cost, simple design to achieve beam scanning of the phase-scanning antenna array, and a large beam scanning range, which can meet the application requirements of high gain and convenient beam scanning in microwave communication.

Claims

1. A one-dimensional phase-scan waveguide slot antenna array based on tunable reflective phase shifters, characterized in that The application relates to a slot radiation layer, a single-ridge waveguide transmission layer, a double-ridge-to-coaxial layer, an adjustable reflective phase shifter group and a one-to-four coaxial feeder layer; the one-to-four coaxial feeder layer is used for accessing external TE10 mode signals and converting the external TE10 mode signals into four-way TEM mode signals with equal amplitude and phase, and then transmitting the four-way TEM mode signals to the adjustable reflective phase shifter group; the adjustable reflective phase shifter group is used for adjusting the phase of the four-way TEM mode signals transmitted to the adjustable reflective phase shifter group from the one-to-four coaxial feeder layer, generating four-way TEM mode signals which are transmitted to the double-ridge-to-coaxial layer; the double-ridge-to-coaxial layer is used for converting the four-way TEM mode signals transmitted to the double-ridge-to-coaxial layer from the reflective phase shifter group into four-way TE10 mode signals through a coaxial-to-double-ridge structure and outputting the four-way TE10 mode signals to the single-ridge waveguide transmission layer; the single-ridge waveguide transmission layer is used for transmitting the four-way TE10 mode signals outputted to the single-ridge waveguide transmission layer from the double-ridge-to-coaxial layer through a double-ridge waveguide-to-single-ridge waveguide structure to the slot radiation layer; the slot radiation layer is used for radiating the four-way TE10 mode signals transmitted to the slot radiation layer from the single-ridge waveguide transmission layer to free space; the slot radiation layer, the single-ridge waveguide transmission layer, the double-ridge-to-coaxial layer, the adjustable reflective phase shifter group and the one-to-four coaxial feeder layer are all realized by full metal; The slot radiation layer comprises a first rectangular metal block and a radiation slot group; the length direction of the first rectangular metal block is regarded as the left-right direction, the width direction is regarded as the front-rear direction, and the height direction is regarded as the up-down direction; the radiation slot group comprises four radiation slot units which are arranged in sequence and spaced apart from each other in the front-rear direction and have the same structure and size; each radiation slot unit comprises 48 radiation slots which are used for radiating the TE10 mode signals transmitted to the radiation slot unit to free space; each radiation slot is a rectangular groove and penetrates the first rectangular metal block in the up-down direction; the length direction of each radiation slot is along the left-right direction, and the width direction is along the front-rear direction; if each radiation slot unit is translated along the front-rear direction, the 48 radiation slots in the radiation slot unit can be completely coincided with the 48 radiation slots in the other three radiation slot units one by one. In each of the radiation slot units, 48 radiation slots are distributed in sequence from left to right, in each of the adjacent two radiation slots, the distance between the left radiation slot along the plane of the front-back symmetry plane and the right radiation slot along the plane of the front-back symmetry plane is equal, the 48 radiation slots are numbered from left to right as 1 to 48, called the first radiation slot to the 48th radiation slot, the length of the 15th radiation slot to the 33rd radiation slot along the left-right direction is equal, the length of the first radiation slot to the 14th radiation slot and the 34th radiation slot to the 48th radiation slot along the left-right direction is equal, the first radiation slot to the 48th radiation slot along the front-back direction width is equal, the distance between the center of the kth radiation slot and the center of the k+1th radiation slot is less than the distance between the center of the k+1th radiation slot and the center of the k+2th radiation slot, wherein k=1,2,…,23; In each of the radiation slot units, the upper end surface of the 48 radiation slots, the lower end surface, the left end surface of the first radiation slot, the right end surface of the 48th radiation slot, the front end surface of the one radiation slot with the front end surface located at the front side among the 48 radiation slots, and the rear end surface of the one radiation slot with the rear end surface located at the rear side among the 48 radiation slots form a rectangular region as the surrounding region of the radiation slot unit; The single-ridge waveguide transmission layer comprises a second rectangular metal block, four single-ridge rectangular channels with the same structure size, and four first double-ridge waveguide channels with the same structure size; the second rectangular metal block is located below the first rectangular metal block, the front end surface of the second rectangular metal block is located in the same plane as the front end surface of the first rectangular metal block, the rear end surface of the second rectangular metal block is located in the same plane as the rear end surface of the first rectangular metal block, the left end surface of the second rectangular metal block is located in the same plane as the left end surface of the first rectangular metal block, the right end surface of the second rectangular metal block is located in the same plane as the right end surface of the first rectangular metal block, and the upper end surface of the second rectangular metal block is fixedly connected with the lower end surface of the first rectangular metal block in a close state; Each single-ridge rectangular channel comprises a first rectangular cavity, a first metal strip, a second metal strip, a third metal strip, a fourth metal strip, a fifth metal strip, a sixth metal strip, a seventh metal strip and an eighth metal strip. The first rectangular cavity is formed in the second rectangular metal block. The length direction of the first rectangular cavity is along the left-right direction, the width direction is along the front-back direction, and the height direction is along the up-down direction. The upper end face of the first rectangular cavity and the upper end face of the second rectangular metal block are located in the same plane. The lower end face of the first rectangular cavity is above the lower end face of the second rectangular metal block. The front end face of the first rectangular cavity is behind the front end face of the second rectangular metal block. The left end face of the first rectangular cavity is to the right of the left end face of the second rectangular metal block. The right end face of the first rectangular cavity is to the left of the right end face of the second rectangular metal block. The distance between the left end face of the first rectangular cavity and the left end face of the second rectangular metal block is equal to the distance between the right end face of the first rectangular cavity and the right end face of the second rectangular metal block. The first metal strip, the second metal strip, the third metal strip, the fourth metal strip, the fifth metal strip, the sixth metal strip, the seventh metal strip and the eighth metal strip are rectangular strips and are located in the first rectangular cavity. The length of the first metal strip and the second metal strip is along the front-back direction, the width is along the left-right direction, and the height is along the up-down direction. The upper end face of the first metal strip is flush with the upper end face of the first rectangular cavity. The front end face of the first metal strip is flush with the front end face of the first rectangular cavity and is fixed on the second rectangular metal block. The rear end face of the first metal strip is flush with the rear end face of the first rectangular cavity and is fixed on the second rectangular metal block. The width of the first metal strip is greater than the width of the second metal strip. The height of the first metal strip is equal to the height of the second metal strip. The second metal strip is below the first metal strip. The upper end face of the second metal strip is connected with the lower end face of the first metal strip and is in a state of adhesion. The front end face of the second metal strip is flush with the front end face of the first rectangular cavity and is fixed on the second rectangular metal block. The rear end face of the second metal strip is flush with the rear end face of the first rectangular cavity and is fixed on the second rectangular metal block. The symmetry plane of the first metal strip along the front-back direction, the symmetry plane of the second metal strip along the front-back direction and the symmetry plane of the first rectangular cavity along the front-back direction are located in the same plane. The length direction of the third metal strip, the fourth metal strip, the fifth metal strip, the sixth metal strip, the seventh metal strip and the eighth metal strip is along the left-right direction, the width direction is along the front-back direction, and the height direction is along the up-down direction. The length of the third metal strip is less than the length of the fourth metal strip. The length of the fourth metal strip is less than the length of the fifth metal strip.The length of the fifth metal strip is less than half of the length of the first rectangular cavity, the width of the third metal strip, the fourth metal strip and the fifth metal strip is equal, the height of the third metal strip is equal to the height of the fourth metal strip and is less than the height of the fifth metal strip, the lower end surface of the second metal strip is located in the same plane with the upper end surface of the third metal strip, the third metal strip, the fourth metal strip and the fifth metal strip are stacked from top to bottom, the left end surface of the third metal strip, the fourth metal strip and the fifth metal strip and the left end surface of the first rectangular cavity are located in the same plane and are fixed on the second rectangular metal block respectively, the lower end surface of the fifth metal strip is connected with the lower end surface of the first rectangular cavity and is in a close contact state, the lower end surface of the fourth metal strip is connected with the upper end surface of the fifth metal strip and is in a close contact state, the lower end surface of the third metal strip is connected with the upper end surface of the fourth metal strip and is in a close contact state, the symmetry plane of the third metal strip, the fourth metal strip and the fifth metal strip along the left-right direction is located in the same plane with the symmetry plane of the first rectangular cavity along the left-right direction, the sixth metal strip and the third metal strip are left-right symmetrical relative to the symmetry plane of the first rectangular cavity along the front-back direction, the seventh metal strip and the fourth metal strip are left-right symmetrical relative to the symmetry plane of the first rectangular cavity along the front-back direction, the eighth metal strip and the fifth metal strip are left-right symmetrical relative to the symmetry plane of the first rectangular cavity along the front-back direction. The upper end face of the first rectangular cavity of each single-ridge rectangular channel serves as an output port of the single-ridge waveguide transmission layer, the single-ridge waveguide transmission layer has four output ports, and the four output ports of the single-ridge waveguide transmission layer are used for one-to-one corresponding transmission of four TE10 mode signals to four radiation slot units, the four single-ridge rectangular channels are sequentially and spacedly distributed in the order from front to back, the four single-ridge rectangular channels are in one-to-one correspondence with the four radiation slot units, and the upper end face of the first rectangular cavity of a corresponding single-ridge rectangular channel and the lower end face of a corresponding radiation slot unit are connected and in a state of adhesion, the symmetry plane of the first rectangular cavity of the single-ridge rectangular channel along the left-right direction is located in the same plane as the symmetry plane of the surrounding area of the radiation slot unit along the left-right direction, and the symmetry plane of the single-ridge rectangular channel along the front-rear direction is located in the same plane as the symmetry plane of the surrounding area of the radiation slot unit along the front-rear direction; The four first double-ridge waveguide channels are sequentially and spacedly distributed in the order from front to back, each first double-ridge waveguide channel comprises a second rectangular cavity, a first square cavity and a third rectangular cavity sequentially connected from front to back, the second rectangular cavity, the first square cavity and the third rectangular cavity are all formed in the second rectangular metal block, the length direction of the second rectangular cavity, the first square cavity and the third rectangular cavity is along the left-right direction, the width direction is along the front-rear direction, and the height direction is along the up-down direction, the length of the second rectangular cavity and the third rectangular cavity is equal and greater than the length of the first square cavity, the width of the second rectangular cavity, the first square cavity and the third rectangular cavity is equal, and the sum of the widths of the second rectangular cavity, the first square cavity and the third rectangular cavity is equal to the width of the first rectangular cavity, the width of the first square cavity is equal to the width of the fifth metal strip, the height of the second rectangular cavity, the first square cavity and the third rectangular cavity is equal, the lower end face of the second rectangular cavity, the first square cavity and the third rectangular cavity is located in the same plane as the lower end face of the second rectangular metal block, the sum of the height of the second rectangular cavity and the height of the first rectangular cavity is equal to the height of the second rectangular metal block, the rear end face of the second rectangular cavity is connected with the front end face of the first square cavity and in a state of adhesion, and the rear end face of the first square cavity is connected with the front end face of the third rectangular cavity and in a state of adhesion. The four first double-ridged waveguide channels correspond to the four single-ridged rectangular channels one by one, in a corresponding one of the first double-ridged waveguide channels and one of the single-ridged rectangular channels, the second rectangular cavity, the first square cavity and the third rectangular cavity of the first double-ridged waveguide channel are located on the same plane as the symmetry plane of the first rectangular cavity of the single-ridged rectangular channel along the front-rear direction, the upper end faces of the second rectangular cavity, the first square cavity and the third rectangular cavity of the first double-ridged waveguide channel are connected with the lower end face of the first rectangular cavity of the single-ridged rectangular channel and are in a state of adhesion, the front end face of the second rectangular cavity of the first double-ridged waveguide channel is located on the same plane as the front end face of the first rectangular cavity of the single-ridged rectangular channel, the rear end face of the third rectangular cavity of the first double-ridged waveguide channel is located on the same plane as the rear end face of the first rectangular cavity of the single-ridged rectangular channel, the left end face of the first square cavity of the first double-ridged waveguide channel is located on the same plane as the right end face of the fifth metal strip of the single-ridged rectangular channel, and the right end face of the first square cavity of the first double-ridged waveguide channel is located on the same plane as the left end face of the eighth metal strip of the single-ridged rectangular channel.

2. A one-dimensional phase-scan waveguide slot antenna array based on tunable reflective phase shifters according to claim 1, characterized in that The double-ridged-to-coaxial layer includes a third rectangular metal block, a fourth rectangular metal block and a fifth rectangular metal block, the length direction of the third rectangular metal block, the fourth rectangular metal block and the fifth rectangular metal block is along the left-right direction, the width direction is along the front-rear direction, and the height direction is along the up-down direction, the length of the third rectangular metal block, the fourth rectangular metal block and the fifth rectangular metal block is equal and smaller than the length of the second rectangular metal block, the width of the third rectangular metal block, the fourth rectangular metal block and the fifth rectangular metal block is equal to the width of the second rectangular metal block, the third rectangular metal block, the fourth rectangular metal block and the fifth rectangular metal block are stacked from top to bottom, the third rectangular metal block is located below the second rectangular metal block, the upper end face of the third rectangular metal block is fixedly connected with the lower end face of the second rectangular metal block and is in a state of adhesion, the front end faces of the third rectangular metal block, the fourth rectangular metal block and the fifth rectangular metal block are located on the same plane as the front end face of the second rectangular metal block, the rear end faces of the third rectangular metal block, the fourth rectangular metal block and the fifth rectangular metal block are located on the same plane as the rear end face of the second rectangular metal block, the left end faces of the third rectangular metal block, the fourth rectangular metal block and the fifth rectangular metal block are located on the same plane, and the right end faces of the third rectangular metal block, the fourth rectangular metal block and the fifth rectangular metal block are located on the same plane. The third rectangular metal block contains four identical second double-ridge waveguide channels. These four channels are arranged at intervals from front to back. Each second double-ridge waveguide channel includes a fourth, fifth, and sixth rectangular cavity connected sequentially from front to back. The fourth, fifth, and sixth rectangular cavities penetrate the third rectangular metal block from top to bottom. The length of the fourth and sixth rectangular cavities is along the left-right direction, the width along the front-back direction, and the height along the top-bottom direction. The length of the fifth rectangular cavity is along the front-back direction, the width along the left-right direction, and the height along the top-bottom direction. The lengths of the fourth and sixth rectangular cavities are equal to the length of the second rectangular cavity, and the widths of the fourth and sixth rectangular cavities are equal to the width of the second rectangular cavity. The length of the fifth rectangular cavity is equal to the length of the first square cavity, and the width of the fifth rectangular cavity is less than the width of the first square cavity. The rear end face of the fourth rectangular cavity is connected to and fitted with the front end face of the fifth rectangular cavity, and the rear end face of the fifth rectangular cavity is connected to and fitted with the front end face of the sixth rectangular cavity. The symmetrical planes of the fourth, fifth, and sixth rectangular cavities along the front-rear direction are located on the same plane. Four second double-ridge waveguide channels are connected one-to-one with four first double-ridge waveguide channels. In a corresponding second double-ridge waveguide channel and a corresponding first double-ridge waveguide channel, the upper end faces of the fourth, fifth, and sixth rectangular cavities of the second double-ridge waveguide channel are in contact with and fitted to the lower end faces of the second rectangular, first square, and third rectangular cavities of the first double-ridge waveguide channel. The front end face of the fourth rectangular cavity of the second double-ridge waveguide channel is on the same plane as the front end face of the second rectangular cavity of the first double-ridge waveguide channel. The left end face of the fourth rectangular cavity of the second double-ridge waveguide channel is on the same plane as the left end face of the second rectangular cavity of the first double-ridge waveguide channel. The right end face of the fourth rectangular cavity of the second double-ridge waveguide channel is on the same plane as the right end face of the second rectangular cavity of the first double-ridge waveguide channel. The planes of symmetry of the fourth, fifth, and sixth rectangular cavities of the second double-ridge waveguide channel along the front-back direction are on the same plane as the plane of symmetry of the second rectangular cavity of the first double-ridge waveguide channel along the front-back direction. The fourth rectangular metal block is provided with four coaxial inner core channels with the same structure and size, which are sequentially and spacedly arranged from front to back, each of the coaxial inner core channels comprises a seventh rectangular cavity, an eighth rectangular cavity, a ninth rectangular cavity, a first square metal matching block, a second square metal matching block, a first rectangular metal matching block and a second rectangular metal matching block, the seventh rectangular cavity, the eighth rectangular cavity and the ninth rectangular cavity are arranged from left to right and sequentially communicated, the seventh rectangular cavity, the eighth rectangular cavity and the ninth rectangular cavity all penetrate the fourth rectangular metal block from top to bottom, the length direction of the seventh rectangular cavity and the eighth rectangular cavity is along the front-back direction, the width direction is along the left-right direction, and the height direction is along the up-down direction, the length direction of the ninth rectangular cavity is along the left-right direction, the width direction is along the front-back direction, and the height direction is along the up-down direction, the right end surface of the ninth rectangular cavity is located in the same plane with the right end surface of the fourth rectangular metal block, the right end surface of the eighth rectangular cavity is connected with the left end surface of the ninth rectangular cavity in a fit state, the right end surface of the seventh rectangular cavity is connected with the left end surface of the eighth rectangular cavity in a fit state, the symmetry planes of the seventh rectangular cavity, the eighth rectangular cavity and the ninth rectangular cavity along the left-right direction are located in the same plane, the first square metal matching block, the second square metal matching block, the first rectangular metal matching block and the second rectangular metal matching block are sequentially arranged from left to right, the length direction of the first square metal matching block, the second square metal matching block, the first rectangular metal matching block and the second rectangular metal matching block is along the left-right direction, the width direction is along the front-back direction, and the height direction is along the up-down direction, the height of the first square metal matching block and the second square metal matching block is the same as the height of the fourth rectangular metal block, the height of the first rectangular metal matching block and the second rectangular metal matching block is equal and smaller than the height of the second square metal matching block, the length and width of the first square metal matching block and the length and width of the second square metal matching block are equal to the width of the fourth rectangular cavity, the widths of the first square metal matching block, the second square metal matching block and the first rectangular metal matching block are equal, the width of the second rectangular metal matching block is smaller than the width of the first rectangular metal matching block, the lower end surfaces of the first square metal matching block, the second square metal matching block, the first rectangular metal matching block, the second rectangular metal matching block and the fourth rectangular metal block are located in the same plane, the symmetry planes of the first square metal matching block, the second square metal matching block, the first rectangular metal matching block, the second rectangular metal matching block and the seventh rectangular cavity along the left-right direction are located in the same plane, the first square metal matching block is located in the seventh rectangular cavity,The left end face of the first square metal matching block is connected with the left end face of the seventh rectangular cavity in a fitted manner, the second square metal matching block is located in the seventh rectangular cavity, the right end face of the second square metal matching block is connected with the right end face of the seventh rectangular cavity in a fitted manner, the left end face of the second square metal matching block is a distance away from the right end face of the first square metal matching block, and the distance is equal to the width of the fifth rectangular cavity, the left end face of the first rectangular metal matching block is connected with the right end face of the second square metal matching block in a fitted manner, the left end face of the second rectangular metal matching block is connected with the right end face of the first rectangular metal matching block in a fitted manner, and the right end face of the second rectangular metal matching block is flush with the right end face of the fourth rectangular metal block; the four coaxial inner core channels are connected with the four second double-ridge waveguide channels one by one in a top-to-bottom manner, in the corresponding coaxial inner core channel and second double-ridge waveguide channel, the upper end face of the seventh rectangular cavity of the coaxial inner core channel is connected with the lower end faces of the fourth rectangular cavity, the fifth rectangular cavity and the sixth rectangular cavity of the second double-ridge waveguide channel in a fitted manner, the left end face of the seventh rectangular cavity of the coaxial inner core channel is located in the same plane as the left end face of the fourth rectangular cavity of the second double-ridge waveguide channel, the front end face of the seventh rectangular cavity of the coaxial inner core channel is located in the same plane as the front end face of the fourth rectangular cavity of the second double-ridge waveguide channel, the right end face of the seventh rectangular cavity of the coaxial inner core channel is located in the same plane as the right end face of the fourth rectangular cavity of the second double-ridge waveguide channel, the rear end face of the seventh rectangular cavity of the coaxial inner core channel is located in the same plane as the rear end face of the sixth rectangular cavity of the second double-ridge waveguide channel, the symmetry plane of the seventh rectangular cavity of the coaxial inner core channel in the front-to-back direction is located in the same plane as the symmetry plane of the fifth rectangular cavity of the second double-ridge waveguide channel in the front-to-back direction, and the symmetry plane of the seventh rectangular cavity of the coaxial inner core channel in the left-to-right direction is located in the same plane as the symmetry plane of the fifth rectangular cavity of the second double-ridge waveguide channel in the left-to-right direction. The fifth rectangular metal block is provided with four coaxial bottom channels with the same structure and size, which are arranged in sequence and spaced from each other, each of the coaxial bottom channels comprises a tenth rectangular cavity, an eleventh rectangular cavity, a twelfth rectangular cavity, a third square metal matching block, a third rectangular metal matching block and a fourth rectangular metal matching block, the tenth rectangular cavity, the eleventh rectangular cavity and the twelfth rectangular cavity are arranged from left to right and communicated in sequence, the length direction of the tenth rectangular cavity and the eleventh rectangular cavity is along the front-back direction, the width direction is along the left-right direction, and the height direction is along the up-down direction, the length direction of the twelfth rectangular cavity is along the left-right direction, the width direction is along the front-back direction, and the height direction is along the up-down direction, the length of the tenth rectangular cavity is equal to the length of the seventh rectangular cavity, the width of the tenth rectangular cavity is equal to the width of the seventh rectangular cavity, the length of the eleventh rectangular cavity is equal to the length of the eighth rectangular cavity, the width of the eleventh rectangular cavity is equal to the width of the eighth rectangular cavity, the length of the twelfth rectangular cavity is equal to the length of the ninth rectangular cavity, the width of the twelfth rectangular cavity is equal to the width of the ninth rectangular cavity, the heights of the tenth rectangular cavity, the eleventh rectangular cavity and the twelfth rectangular cavity are equal and smaller than the height of the fifth rectangular metal block, the upper end faces of the tenth rectangular cavity, the eleventh rectangular cavity and the twelfth rectangular cavity are located in the same plane with the upper end face of the fifth rectangular metal block, the right end face of the twelfth rectangular cavity is located in the same plane with the right end face of the fifth rectangular metal block, the right end face of the eleventh rectangular cavity is connected with the left end face of the twelfth rectangular cavity in a lapped state, the right end face of the tenth rectangular cavity is connected with the left end face of the eleventh rectangular cavity in a lapped state, the symmetry planes of the tenth rectangular cavity, the eleventh rectangular cavity and the twelfth rectangular cavity along the left-right direction are located in the same plane, the third square metal matching block, the third rectangular metal matching block and the fourth rectangular metal matching block are arranged in sequence from left to right, the length direction of the third square metal matching block and the third rectangular metal matching block is along the front-back direction, the width direction is along the left-right direction, and the height direction is along the up-down direction, the length direction of the fourth rectangular metal matching block is along the left-right direction, the width direction is along the front-back direction, and the height direction is along the up-down direction, the length of the third square metal matching block is equal to the length of the first square metal matching block, the width of the third square metal matching block is equal to the width of the first square metal matching block, the height of the third square metal matching block is equal to the height of the tenth rectangular cavity, the length of the third rectangular metal matching block is equal to the length of the third square metal matching block, and the height of the third rectangular metal matching block is smaller than the height of the third square metal matching block.The height of the fourth rectangular metal matching block is equal to the height of the third rectangular metal matching block, the width of the fourth rectangular metal matching block is less than the width of the third rectangular metal matching block, the lower end faces of the third square metal matching block, the third rectangular metal matching block and the fourth rectangular metal matching block are located in the same plane as the lower end face of the tenth rectangular cavity, the third square metal matching block is located in the tenth rectangular cavity, the left end face of the third square metal matching block is connected with the left end face of the tenth rectangular cavity in a fitted manner, the third rectangular metal matching block is located in the tenth rectangular cavity, the left end face of the third rectangular metal matching block is connected with the right end face of the third square metal matching block in a fitted manner, the fourth rectangular metal matching block is located in the tenth rectangular cavity, the eleventh rectangular cavity and the twelfth rectangular cavity, the left end face of the fourth rectangular metal matching block is connected with the right end face of the third rectangular metal matching block in a fitted manner, the right end face of the fourth rectangular metal matching block is located between the left end face and the right end face of the twelfth rectangular cavity, the third square metal matching block, the third rectangular metal matching block, the fourth rectangular metal matching block and the tenth rectangular cavity are located in the same plane along the symmetry plane in the left-right direction; the tenth rectangular cavity of the coaxial bottom channel is connected with the lower end face of the seventh rectangular cavity of the coaxial inner core channel in a fitted manner, the left end face of the tenth rectangular cavity of the coaxial bottom channel is located in the same plane as the left end face of the seventh rectangular cavity of the coaxial inner core channel, the front end face of the tenth rectangular cavity of the coaxial bottom channel is located in the same plane as the front end face of the seventh rectangular cavity of the coaxial inner core channel, the right end face of the tenth rectangular cavity of the coaxial bottom channel is located in the same plane as the right end face of the seventh rectangular cavity of the coaxial inner core channel, and the rear end face of the tenth rectangular cavity of the coaxial bottom channel is located in the same plane as the rear end face of the seventh rectangular cavity of the coaxial inner core channel. In a corresponding coaxial inner core channel and a coaxial bottom channel, the right end face of the ninth rectangular cavity and the right end face of the second rectangular metal matching block in the coaxial inner core channel and the right end face of the twelfth rectangular cavity in the coaxial bottom channel form a first coaxial interface surface. That is, the double-ridge to coaxial layer has four first coaxial interface surfaces arranged sequentially from front to back. The four first coaxial interface surfaces of the double-ridge to coaxial layer are used to connect with the adjustable reflective phase shifter group and access the four TEM mode signals output by the adjustable reflective phase shifter group.

3. A one-dimensional phase-scan waveguide slot antenna array based on tunable reflective phase shifters according to claim 2, characterized in that The adjustable reflective phase shifter set comprises four adjustable reflective phase shifters with the same structure and size, which are sequentially arranged from front to back below the second rectangular metal block; Each of the adjustable reflective phase shifters comprises a sixth rectangular metal block, a seventh rectangular metal block, an eighth rectangular metal block, a first metal piston, a second metal piston, a fifth rectangular metal matching block, a sixth rectangular metal matching block, a seventh rectangular metal matching block, an eighth rectangular metal matching block, a ninth rectangular metal matching block, a tenth rectangular metal matching block, an eleventh rectangular metal matching block, a twelfth rectangular metal matching block, a thirteenth rectangular metal matching block, a fourteenth rectangular metal matching block, a fifteenth rectangular metal matching block, a sixteenth rectangular metal matching block, a seventeenth rectangular metal matching block, an eighteenth rectangular metal matching block, a nineteenth rectangular metal matching block, a twentieth rectangular metal matching block, a twenty-first rectangular metal matching block and a twenty-second rectangular metal matching block, the length direction of the sixth rectangular metal block, the seventh rectangular metal block and the eighth rectangular metal block is along the left-right direction, the width direction is along the up-down direction, the height direction is along the front-back direction, the sixth rectangular metal block, the seventh rectangular metal block and the eighth rectangular metal block are stacked from front to back, a thirteenth rectangular cavity, a fourteenth rectangular cavity, a fifteenth rectangular cavity, a first long strip cavity and a second long strip cavity are arranged on the sixth rectangular metal block, the thirteenth rectangular cavity, the fourteenth rectangular cavity and the fifteenth rectangular cavity are arranged from left to right and sequentially communicate, the first long strip cavity and the second long strip cavity are located on the right side of the fifteenth rectangular cavity, the first long strip cavity and the second long strip cavity are arranged in up-down direction, the length direction of the thirteenth rectangular cavity and the fifteenth rectangular cavity is along the up-down direction, the width direction is along the left-right direction, the height direction is along the front-back direction, the length direction of the fourteenth rectangular cavity is along the left-right direction, the width direction is along the up-down direction, the height direction is along the front-back direction, the first long strip cavity and the second long strip cavity are rectangular cavities, the length direction is along the left-right direction, the width direction is along the up-down direction, the height direction is along the front-back direction, the height of the thirteenth rectangular cavity, the fourteenth rectangular cavity, the fifteenth rectangular cavity, the first long strip cavity and the second long strip cavity is equal to the height of the sixth rectangular metal block, the length of the thirteenth rectangular cavity is equal to the length of the fifteenth rectangular cavity, the width of the thirteenth rectangular cavity is greater than the width of the fifteenth rectangular cavity, the width of the fourteenth rectangular cavity is greater than the length of the thirteenth rectangular cavity, the width of the first long strip cavity and the second long strip cavity is less than half of the length of the thirteenth rectangular cavity, the length of the first long strip cavity and the second long strip cavity is equal, the rear end surface of the thirteenth rectangular cavity, the fourteenth rectangular cavity, the fifteenth rectangular cavity, the first long strip cavity and the second long strip cavity is located on the same plane as the rear end surface of the sixth rectangular metal block, the left end surface of the thirteenth rectangular cavity is located on the same plane as the left end surface of the sixth rectangular metal block, the upper end surface of the fourteenth rectangular cavity is located on the lower side of the upper end surface of the sixth rectangular metal block,The right end surface of the thirteenth rectangular cavity is connected with the left end surface of the fourteenth rectangular cavity in a fit state, the right end surface of the fourteenth rectangular cavity is connected with the left end surface of the fifteenth rectangular cavity in a fit state, the symmetry plane of the thirteenth rectangular cavity, the fourteenth rectangular cavity and the fifteenth rectangular cavity in the left-right direction is located in the same plane, the left end surfaces of the first long strip cavity and the second long strip cavity are connected with the right end surface of the fifteenth rectangular cavity in a fit state, the right end surfaces of the first long strip cavity and the second long strip cavity are located in the same plane as the right end surface of the sixth rectangular metal block, the upper end surface of the first long strip cavity is located in the same plane as the upper end surface of the fifteenth rectangular cavity, the lower end surface of the second long strip cavity is located in the same plane as the lower end surface of the fifteenth rectangular cavity, there is a distance between the lower end surface of the first long strip cavity and the upper end surface of the second long strip cavity, the first long strip cavity and the second long strip cavity are symmetric with respect to the plane in which the symmetry plane of the thirteenth rectangular cavity in the left-right direction is located; a matching metal block is arranged in the thirteenth rectangular cavity, the matching metal block is a cuboid structure, the length direction is along the left-right direction, the width direction is along the up-down direction, and the height direction is along the front-back direction, the length of the matching metal block is greater than the width, the left end surface of the matching metal block is flush with the left end surface of the thirteenth rectangular cavity, the rear end surface of the matching metal block is flush with the rear end surface of the thirteenth rectangular cavity, the front end surface of the matching metal block is flush with the front end surface of the thirteenth rectangular cavity, the upper end surface of the matching metal block is located in the same plane as the lower end surface of the first long strip cavity, and the lower end surface of the matching metal block is located in the same plane as the upper end surface of the second long strip cavity; the seventh rectangular metal block is provided with a sixteenth rectangular cavity, a seventeenth rectangular cavity, an eighteenth rectangular cavity, a third long strip cavity and a fourth long strip cavity, the sixteenth rectangular cavity, the seventeenth rectangular cavity and the eighteenth rectangular cavity are sequentially arranged and communicated from left to right, the third long strip cavity and the fourth long strip cavity are located on the right side of the eighteenth rectangular cavity, the third long strip cavity and the fourth long strip cavity are arranged in an up-down interval, the length direction of the sixteenth rectangular cavity and the eighteenth rectangular cavity is along the up-down direction, the width direction is along the left-right direction, and the height direction is along the front-back direction, the length direction of the seventeenth rectangular cavity is along the left-right direction, the width direction is along the up-down direction, and the height direction is along the front-back direction, the third long strip cavity and the fourth long strip cavity are both rectangular cavities, the length direction is along the left-right direction, the width direction is along the up-down direction, and the height direction is along the front-back direction, the length of the sixteenth rectangular cavity is the same as the length of the thirteenth rectangular cavity, the width of the sixteenth rectangular cavity is the same as the width of the thirteenth rectangular cavity, the length of the seventeenth rectangular cavity is the same as the length of the fourteenth rectangular cavity, and the width of the seventeenth rectangular cavity is the same as the width of the fourteenth rectangular cavity.The length of the eighteenth rectangular cavity is the same as that of the fifteenth rectangular cavity, the width of the eighteenth rectangular cavity is the same as that of the fifteenth rectangular cavity, the length of the third long-strip cavity is the same as that of the first long-strip cavity, the width of the third long-strip cavity is the same as that of the first long-strip cavity, the length of the fourth long-strip cavity is the same as that of the second long-strip cavity, the width of the fourth long-strip cavity is the same as that of the second long-strip cavity, the height of the sixteenth rectangular cavity, the seventeenth rectangular cavity, the eighteenth rectangular cavity, the third long-strip cavity and the fourth long-strip cavity is the same as that of the seventh rectangular metal block, the sixteenth rectangular cavity, the seventeenth rectangular cavity, the eighteenth rectangular cavity, the third long-strip cavity and the fourth long-strip cavity penetrate through the seventh rectangular metal block from front to back; the left end surface of the sixteenth rectangular cavity is flush with the left end surface of the seventh rectangular metal block, the upper end surface of the seventeenth rectangular cavity is located below the upper end surface of the seventh rectangular metal block, the right end surface of the sixteenth rectangular cavity is fixedly connected with the left end surface of the seventeenth rectangular cavity in a fit state, the right end surface of the seventeenth rectangular cavity is fixedly connected with the left end surface of the eighteenth rectangular cavity in a fit state, the left-right direction symmetry planes of the sixteenth rectangular cavity, the seventeenth rectangular cavity and the eighteenth rectangular cavity are located in the same plane, the upper end surface of the sixteenth rectangular cavity is located in the same plane as the upper end surface of the thirteenth rectangular cavity, the third long-strip cavity is located above the fourth long-strip cavity, the left end surfaces of the third long-strip cavity and the fourth long-strip cavity are connected with the right end surface of the eighteenth rectangular cavity in a fit state, the right end surfaces of the third long-strip cavity and the fourth long-strip cavity are located in the same plane as the right end surface of the seventh rectangular metal block, the upper end surface of the third long-strip cavity is located in the same plane as the upper end surface of the eighteenth rectangular cavity, the lower end surface of the fourth long-strip cavity is located in the same plane as the lower end surface of the eighteenth rectangular cavity, the lower end surface of the third long-strip cavity is located in the same plane as the lower end surface of the first long-strip cavity, the upper end surface of the fourth long-strip cavity is located in the same plane as the upper end surface of the second long-strip cavity, the lower end surface of the third long-strip cavity is apart from the upper end surface of the fourth long-strip cavity by a distance,The first long cavity and the second long cavity are symmetric with respect to the plane of the symmetry surface of the sixteenth rectangular cavity along the left-right direction; the length direction of the fifth rectangular metal matching block, the sixth rectangular metal matching block, the seventh rectangular metal matching block, the eighth rectangular metal matching block, the ninth rectangular metal matching block, the tenth rectangular metal matching block, the eleventh rectangular metal matching block, the twelfth rectangular metal matching block, the thirteenth rectangular metal matching block, the fourteenth rectangular metal matching block, the fifteenth rectangular metal matching block, the sixteenth rectangular metal matching block, the seventeenth rectangular metal matching block, the eighteenth rectangular metal matching block, the nineteenth rectangular metal matching block, the twentieth rectangular metal matching block, the twenty-first rectangular metal matching block and the twenty-second rectangular metal matching block is along the left-right direction, the width direction is along the up-down direction, and the height direction is along the front-back direction; the height of the fifth rectangular metal matching block, the sixth rectangular metal matching block, the seventh rectangular metal matching block, the eighth rectangular metal matching block, the ninth rectangular metal matching block, the tenth rectangular metal matching block, the eleventh rectangular metal matching block, the twelfth rectangular metal matching block, the thirteenth rectangular metal matching block, the fourteenth rectangular metal matching block, the fifteenth rectangular metal matching block, the sixteenth rectangular metal matching block, the seventeenth rectangular metal matching block, the eighteenth rectangular metal matching block, the nineteenth rectangular metal matching block, the twentieth rectangular metal matching block, the twenty-first rectangular metal matching block and the twenty-second rectangular metal matching block is the same as the height of the seventh rectangular metal block; the width of the sixth rectangular metal matching block is greater than the width of the fifth rectangular metal matching block, the width of the seventh rectangular metal matching block is greater than the width of the sixth rectangular metal matching block, the width of the eighth rectangular metal matching block is greater than the width of the seventh rectangular metal matching block, the width of the third long cavity is greater than the width of the eighth rectangular metal matching block; the fifth rectangular metal matching block and the fourteenth rectangular metal matching block have the same size, the sixth rectangular metal matching block, the twelfth rectangular metal matching block, the fifteenth rectangular metal matching block and the twentieth rectangular metal matching block have the same size, the seventh rectangular metal matching block, the eleventh rectangular metal matching block, the sixteenth rectangular metal matching block and the nineteenth rectangular metal matching block have the same size, the eighth rectangular metal matching block, the tenth rectangular metal matching block, the seventeenth rectangular metal matching block and the eighteenth rectangular metal matching block have the same size, and the width of the thirteenth rectangular metal matching block is equal to the width of the fifth rectangular metal matching block.The width of the twenty-first rectangular metal matching block is equal to the width of the fourteenth rectangular metal matching block, the length of the fifth rectangular metal matching block, the sixth rectangular metal matching block, the seventh rectangular metal matching block, the eighth rectangular metal matching block, the ninth rectangular metal matching block, the tenth rectangular metal matching block, the eleventh rectangular metal matching block, the twelfth rectangular metal matching block and the thirteenth rectangular metal matching block is equal to the length of the seventh rectangular metal block, the width of the ninth rectangular metal matching block is less than the width of the seventeenth rectangular cavity, the front end faces of the fifth rectangular metal matching block, the sixth rectangular metal matching block, the seventh rectangular metal matching block, the eighth rectangular metal matching block, the ninth rectangular metal matching block, the tenth rectangular metal matching block, the eleventh rectangular metal matching block, the twelfth rectangular metal matching block, the thirteenth rectangular metal matching block, the fourteenth rectangular metal matching block, the fifteenth rectangular metal matching block, the sixteenth rectangular metal matching block, the seventeenth rectangular metal matching block, the eighteenth rectangular metal matching block, the nineteenth rectangular metal matching block, the twentieth rectangular metal matching, the twenty-first rectangular metal matching block and the twenty-second rectangular metal matching block are located in the same plane with the front end face of the seventh rectangular metal block, the fifth rectangular metal matching block, the sixth rectangular metal matching block and the seventh rectangular metal matching block are located in the sixteenth rectangular cavity, the eighth rectangular metal matching block is located in the sixteenth rectangular cavity and the seventeenth rectangular cavity, the ninth rectangular metal matching block is located in the seventeenth rectangular cavity, the tenth rectangular metal matching block is located in the seventeenth rectangular cavity and the eighteenth rectangular cavity, the eleventh rectangular metal matching block is located in the eighteenth rectangular cavity, the twelfth rectangular metal matching block is located in the eighteenth rectangular cavity and the third long strip cavity, the thirteenth rectangular metal matching block is located in the third long strip cavity, the fourteenth rectangular metal matching block, the fifteenth rectangular metal matching block and the sixteenth rectangular metal matching block are located in the sixteenth rectangular cavity, the seventeenth rectangular metal matching block is located in the sixteenth rectangular cavity and the seventeenth rectangular cavity, the eighteenth rectangular metal matching block is located in the seventeenth rectangular cavity and the eighteenth rectangular cavity, the nineteenth rectangular metal matching block is located in the eighteenth rectangular cavity, the twentieth rectangular metal matching is located in the eighteenth rectangular cavity and the fourth long strip cavity, the twenty-first rectangular metal matching block is located in the fourth long strip cavity, the twenty-second rectangular metal matching block is located in the sixteenth rectangular cavity, the left end face of the fifth rectangular metal matching block is flush with the left end face of the seventh rectangular metal block,The right end face of the fifth rectangular metal matching block is fixedly connected with the left end face of the sixth rectangular metal matching block in a pasting manner, the right end face of the sixth rectangular metal matching block is fixedly connected with the left end face of the seventh rectangular metal matching block in a pasting manner, the right end face of the seventh rectangular metal matching block is fixedly connected with the left end face of the eighth rectangular metal matching block in a pasting manner, the lower end faces of the fifth, sixth, seventh and eighth rectangular metal matching blocks are located in the same plane, the upper end faces of the fifth, sixth, seventh and eighth rectangular metal matching blocks and the upper end face of the sixteenth rectangular cavity are respectively provided with a distance, the ninth rectangular metal matching block is located in the seventeenth rectangular cavity, the right end face of the eighth rectangular metal matching block is fixedly connected with the left end face of the ninth rectangular metal matching block in a pasting manner, the left end face of the tenth rectangular metal matching block is fixedly connected with the right end face of the ninth rectangular metal matching block in a pasting manner, the right end face of the tenth rectangular metal matching block is fixedly connected with the left end face of the eleventh rectangular metal matching block in a pasting manner, the right end face of the eleventh rectangular metal matching block is fixedly connected with the left end face of the twelfth rectangular metal matching block in a pasting manner, the right end face of the twelfth rectangular metal matching block is fixedly connected with the left end face of the thirteenth rectangular metal matching block in a pasting manner, the right end face of the thirteenth rectangular metal matching block is flush with the right end face of the seventh rectangular metal block, the lower end faces of the tenth, eleventh, twelfth and thirteenth rectangular metal matching blocks are located in the same plane, the upper end faces of the tenth, eleventh, twelfth and thirteenth rectangular metal matching blocks and the upper end face of the third long strip cavity are respectively provided with a distance, the fifth rectangular metal matching block and the fourteenth rectangular metal matching block are vertically symmetrical relative to the plane of the symmetry face of the sixteenth rectangular cavity along the left-right direction, the sixth rectangular metal matching block and the fifteenth rectangular metal matching block are vertically symmetrical relative to the plane of the symmetry face of the sixteenth rectangular cavity along the left-right direction, the seventh rectangular metal matching block and the sixteenth rectangular metal matching block are vertically symmetrical relative to the plane of the symmetry face of the sixteenth rectangular cavity along the left-right direction, the eighth rectangular metal matching block and the seventeenth rectangular metal matching block are vertically symmetrical relative to the plane of the symmetry face of the sixteenth rectangular cavity along the left-right direction, the tenth rectangular metal matching block and the eighteenth rectangular metal matching block are vertically symmetrical relative to the plane of the symmetry face of the sixteenth rectangular cavity along the left-right direction,The eleventh rectangular metal matching block and the nineteenth rectangular metal matching block are symmetric with respect to the plane of the symmetry surface of the sixteenth rectangular cavity along the left-right direction, the twelfth rectangular metal matching block and the twentieth rectangular metal matching block are symmetric with respect to the plane of the symmetry surface of the sixteenth rectangular cavity along the left-right direction, the thirteenth rectangular metal matching block and the twenty-first rectangular metal matching block are symmetric with respect to the plane of the symmetry surface of the sixteenth rectangular cavity along the left-right direction, the left end surface of the twenty-second rectangular metal matching block is flush with the left end surface of the seventh rectangular metal block, the symmetry surface of the twenty-second rectangular metal matching block along the left-right direction is in the same plane as the symmetry surface of the sixteenth rectangular cavity along the left-right direction, the length of the twenty-second rectangular metal matching block is less than the length of the sixteenth rectangular cavity, there is a distance between the upper end surface of the twenty-second rectangular metal matching block and the lower end surface of the fifth rectangular metal matching block, there is a distance between the lower end surface of the twenty-second rectangular metal matching block and the upper end surface of the fourteenth rectangular metal matching block, the upper end surface of the twenty-second rectangular metal matching block is in the same plane as the lower end surface of the third long strip cavity, the lower end surface of the twenty-second rectangular metal matching block is in the same plane as the upper end surface of the fourth long strip cavity, the ninth rectangular metal matching block is sequentially provided with a first rectangular through hole, a second rectangular through hole and a third rectangular through hole from left to right, the length direction of the first rectangular through hole, the second rectangular through hole and the third rectangular through hole is along the up-down direction, the width direction is along the left-right direction, and the height direction is along the front-back direction, the height of the first rectangular through hole, the second rectangular through hole and the third rectangular through hole is the same as the height of the seventh rectangular metal block, the front end surface of the first rectangular through hole, the second rectangular through hole and the third rectangular through hole is in the same plane as the front end surface of the seventh rectangular metal block, the length of the first rectangular through hole, the second rectangular through hole and the third rectangular through hole is equal, the width of the first rectangular through hole, the second rectangular through hole and the third rectangular through hole is equal, the distance between the right end surface of the first rectangular through hole and the left end surface of the second rectangular through hole is the same as the distance between the left end surface of the third rectangular through hole and the right end surface of the second rectangular through hole, the symmetry surface of the seventeenth rectangular cavity along the left-right direction, the symmetry surface of the ninth rectangular metal matching block along the left-right direction and the symmetry surface of the second rectangular through hole along the left-right direction coincide, the symmetry surface of the seventeenth rectangular cavity along the up-down direction, the symmetry surface of the ninth rectangular metal matching block along the up-down direction and the symmetry surface of the second rectangular through hole along the up-down direction coincide, the first metal piston is arranged in the third long strip cavity, the first metal piston comprises a ninth metal strip and a fifth long strip cavity arranged on the ninth metal strip,The length direction of the ninth metal strip and the fifth long strip cavity is along the left-right direction, the width direction is along the up-down direction, the height direction is along the front-back direction, the length of the fifth long strip cavity is less than the length of the ninth metal strip, the width of the fifth long strip cavity is less than the width of the ninth metal strip, the height of the fifth long strip cavity is less than the height of the ninth metal strip, the width of the ninth metal strip is the same as the width of the third long strip cavity, the height of the ninth metal strip is equal to the sum of the height of the first long strip cavity and the height of the third long strip cavity, the width of the fifth long strip cavity is equal to the width of the thirteenth rectangular metal matching block, the height of the fifth long strip cavity is equal to the height of the thirteenth rectangular metal matching block, the left end face of the fifth long strip cavity is located in the same plane as the left end face of the ninth metal strip, the upper end face of the fifth long strip cavity is located on the lower side of the upper end face of the ninth metal strip, the lower end face of the fifth long strip cavity is located on the upper side of the lower end face of the ninth metal strip, the front end face of the fifth long strip cavity is located on the rear side of the front end face of the ninth metal strip, the rear end face of the fifth long strip cavity is located on the front side of the rear end face of the ninth metal strip, the right end face of the fifth long strip cavity is located on the left side of the right end face of the ninth metal strip, the upper end face of the fifth long strip cavity is located in the same plane as the upper end face of the thirteenth rectangular metal matching block, the lower end face of the fifth long strip cavity is located in the same plane as the lower end face of the thirteenth rectangular metal matching block, the front end face of the fifth long strip cavity is located in the same plane as the front end face of the thirteenth rectangular metal matching block, the rear end face of the fifth long strip cavity is located in the same plane as the rear end face of the thirteenth rectangular metal matching block, the symmetry plane of the fifth long strip cavity along the up-down direction, the symmetry plane of the ninth metal strip along the up-down direction and the symmetry plane of the third long strip cavity along the up-down direction are located in the same plane, the symmetry plane of the fifth long strip cavity along the left-right direction, the symmetry plane of the ninth metal strip along the left-right direction and the symmetry plane of the third long strip cavity along the left-right direction are located in the same plane, the thirteenth rectangular metal matching block is inserted into the fifth long strip cavity, the first metal piston can move left and right in the third long strip cavity along the thirteenth rectangular metal matching block, the moving range is from the right end face of the fifth long strip cavity and the right end face of the thirteenth rectangular metal matching block being attached to the plane where the left end face of the fifth long strip cavity and the right end face of the thirteenth rectangular metal matching block are located in the same plane, the second metal piston is arranged in the fourth long strip cavity, the second metal piston comprises a tenth metal strip and a sixth long strip cavity opened on the tenth metal strip, the length direction of the tenth metal strip and the sixth long strip cavity is along the left-right direction, the width direction is along the up-down direction, the height direction is along the front-back direction, the length of the sixth long strip cavity is less than the length of the tenth metal strip,The width of the sixth long strip cavity is less than the width of the tenth metal strip, the height of the sixth long strip cavity is less than the height of the tenth metal strip, the width of the tenth metal strip is the same as the width of the fourth long strip cavity, the height of the tenth metal strip is equal to the sum of the height of the second long strip cavity and the height of the fourth long strip cavity, the width of the sixth long strip cavity is equal to the width of the twenty-first rectangular metal matching block, the height of the sixth long strip cavity is equal to the height of the twenty-first rectangular metal matching block, the left end face of the sixth long strip cavity is located in the same plane as the left end face of the tenth metal strip, the upper end face of the sixth long strip cavity is located below the upper end face of the tenth metal strip, the lower end face of the sixth long strip cavity is located above the lower end face of the tenth metal strip, the front end face of the sixth long strip cavity is located behind the front end face of the tenth metal strip, the rear end face of the sixth long strip cavity is located in front of the rear end face of the tenth metal strip, the right end face of the sixth long strip cavity is located to the left of the right end face of the tenth metal strip, the upper end face of the sixth long strip cavity is located in the same plane as the upper end face of the twenty-first rectangular metal matching block, the lower end face of the sixth long strip cavity is located in the same plane as the lower end face of the twenty-first rectangular metal matching block, the front end face of the sixth long strip cavity is located in the same plane as the front end face of the twenty-first rectangular metal matching block, the rear end face of the sixth long strip cavity is located in the same plane as the rear end face of the twenty-first rectangular metal matching block, the symmetry plane of the sixth long strip cavity in the up-down direction, the symmetry plane of the tenth metal strip in the up-down direction and the symmetry plane of the fourth long strip cavity in the up-down direction are located in the same plane, the symmetry plane of the sixth long strip cavity in the left-right direction, the symmetry plane of the tenth metal strip in the left-right direction and the symmetry plane of the fourth long strip cavity in the left-right direction are located in the same plane, the twenty-first rectangular metal matching block is inserted into the sixth long strip cavity, the second metal piston can move left and right in the fourth long strip cavity along the twenty-first rectangular metal matching block, the moving range is from the right end face of the sixth long strip cavity and the right end face of the twenty-first rectangular metal matching block being in contact to the left end face of the sixth long strip cavity and the right end face of the twenty-first rectangular metal matching block being located in the same plane; the eighth metal block is provided with structures that are mirror symmetric to the thirteenth rectangular cavity, the fourteenth rectangular cavity, the fifteenth rectangular cavity, the matching metal block, the first long strip cavity and the second long strip cavity on the seventh rectangular metal block, The four adjustable reflective phase shifters are sequentially referred to as a first adjustable reflective phase shifter, a second adjustable reflective phase shifter, a third adjustable reflective phase shifter and a fourth adjustable reflective phase shifter from front to back, the front end face of the sixth rectangular metal block in the first adjustable reflective phase shifter is located in the same plane as the front end face of the second rectangular metal block, the rear end face of the eighth rectangular metal block in the first adjustable reflective phase shifter is connected with the front end face of the sixth rectangular metal block in the second adjustable reflective phase shifter and in a state of adhesion, the rear end face of the eighth rectangular metal block in the second adjustable reflective phase shifter is connected with the front end face of the sixth rectangular metal block in the third adjustable reflective phase shifter and in a state of adhesion, the rear end face of the eighth rectangular metal block in the third adjustable reflective phase shifter is connected with the front end face of the sixth rectangular metal block in the fourth adjustable reflective phase shifter and in a state of adhesion, the rear end face of the eighth rectangular metal block in the fourth adjustable reflective phase shifter is located in the same plane as the rear end face of the second rectangular metal block, the upper end faces of the sixth rectangular metal block, the seventh rectangular metal block and the eighth rectangular metal block in the first adjustable reflective phase shifter, the second adjustable reflective phase shifter, the third adjustable reflective phase shifter and the fourth adjustable reflective phase shifter are connected with the lower end face of the second rectangular metal block and in a state of adhesion, the left end faces of the sixth rectangular metal block, the seventh rectangular metal block and the eighth rectangular metal block in the first adjustable reflective phase shifter, the second adjustable reflective phase shifter, the third adjustable reflective phase shifter and the fourth adjustable reflective phase shifter are connected with the right end faces of the third rectangular metal block, the fourth rectangular metal block and the fifth rectangular metal block and in a state of adhesion, the lower end faces of the sixth rectangular metal block, the seventh rectangular metal block and the eighth rectangular metal block in the first adjustable reflective phase shifter, the second adjustable reflective phase shifter, the third adjustable reflective phase shifter and the fourth adjustable reflective phase shifter are located in the same plane as the lower end face of the fifth rectangular metal block, and the right end faces of the sixth rectangular metal block, the seventh rectangular metal block and the eighth rectangular metal block in the first adjustable reflective phase shifter, the second adjustable reflective phase shifter, the third adjustable reflective phase shifter and the fourth adjustable reflective phase shifter are located to the left of the right end face of the second rectangular metal block. The left end face of the area between the upper end face of the thirteenth rectangular cavity in the sixth rectangular metal block and the upper end face of the matching metal block in the sixth rectangular metal block, the left end face of the fifth rectangular metal matching block, the left end face of the area between the upper end face of the sixteenth rectangular cavity and the upper end face of the twenty-second rectangular metal matching block, and the upper end face of the rectangular cavity in the eighth rectangular metal block which is mirror-symmetric to the thirteenth rectangular cavity in the sixth rectangular metal block and the upper end face of the matching metal block which is mirror-symmetric to the matching metal block in the sixth rectangular metal block constitute a second coaxial interface surface; the left end face of the area between the lower end face of the thirteenth rectangular cavity in the sixth rectangular metal block and the lower end face of the matching metal block in the sixth rectangular metal block, the left end face of the fourteenth rectangular metal matching block, the left end face of the area between the lower end face of the sixteenth rectangular cavity and the lower end face of the twenty-second rectangular metal matching block, and the lower end face of the rectangular cavity in the eighth rectangular metal block which is mirror-symmetric to the thirteenth rectangular cavity in the sixth rectangular metal block and the lower end face of the matching metal block which is mirror-symmetric to the matching metal block in the sixth rectangular metal block constitute a third coaxial interface surface, that is, the adjustable reflective phase shifter has four second coaxial interface surfaces and four third coaxial interface surfaces; The four second coaxial interface surfaces of the adjustable reflective phase shifter correspond to the four first coaxial interface surfaces of the double-ridge trans-coaxial layer one by one. In the corresponding second coaxial interface surface and first coaxial interface surface, the second coaxial interface surface is fixedly connected with the first coaxial interface surface and in a state of adhesion, and the left end face of the fifth rectangular metal matching block of the adjustable reflective phase shifter where the second coaxial interface surface is located is fixedly connected with the right end face of the second rectangular metal matching block in the coaxial inner core channel where the first coaxial interface is located and in a state of complete overlap. The adjustable reflective phase shifter has four third coaxial interface surfaces for connecting with the one-to-four coaxial feeding layer and accessing the four-way TEM mode signals transmitted by the one-to-four coaxial feeding layer.

4. A one-dimensional phase-scan waveguide slot antenna array based on tunable reflective phase shifters according to claim 3, characterized in that The first-to-four coaxial feeder layer comprises a ninth rectangular metal block and a tenth rectangular metal block, the length direction of the ninth rectangular metal block and the tenth rectangular metal block is along the left-right direction, the width direction of the ninth rectangular metal block and the tenth rectangular metal block is along the front-back direction, the height direction of the ninth rectangular metal block and the tenth rectangular metal block is along the up-down direction, the width of the ninth rectangular metal block and the tenth rectangular metal block is equal to the width of the fifth rectangular metal block, the length sum of the ninth rectangular metal block and the tenth rectangular metal block is equal to the length of the fifth rectangular metal block, the height sum of the ninth rectangular metal block, the tenth rectangular metal block, the third rectangular metal block, the fourth rectangular metal block and the fifth rectangular metal block is equal to the width of the sixth rectangular metal block, the ninth rectangular metal block and the tenth rectangular metal block are located below the fifth rectangular metal block, the ninth rectangular metal block and the tenth rectangular metal block are stacked from left to right, the left end face of the ninth rectangular metal block and the left end face of the fifth rectangular metal block are located in the same plane, the right end face of the ninth rectangular metal block and the left end face of the tenth rectangular metal block are fixedly connected and in the adhered state, the right end face of the tenth rectangular metal block and the right end face of the fifth rectangular metal block are located in the same plane, the front end face of the ninth rectangular metal block, the tenth rectangular metal block and the fifth rectangular metal block are located in the same plane, the back end face of the ninth rectangular metal block, the tenth rectangular metal block and the fifth rectangular metal block are located in the same plane, the upper end face of the ninth rectangular metal block and the tenth rectangular metal block and the lower end face of the fifth rectangular metal block are fixedly connected and in the adhered state, the right end face of the tenth rectangular metal block and the left end face of the sixth rectangular metal block, the seventh rectangular metal block and the eighth rectangular metal block of the four adjustable reflective phase shifters are fixedly connected and in the adhered state, the lower end face of the ninth rectangular metal block and the tenth rectangular metal block and the lower end face of the sixth rectangular metal block, the seventh rectangular metal block and the eighth rectangular metal block of the four adjustable reflective phase shifters are located in the same plane, the ninth rectangular metal block is provided with a nineteenth rectangular cavity, a twentieth rectangular cavity, a twenty-first rectangular cavity and a twenty-second rectangular cavity, the twenty-first rectangular cavity is provided with a twenty-third rectangular metal matching block, a twenty-fourth rectangular metal matching block and a twenty-fifth rectangular metal matching block, the twenty-second rectangular cavity is provided with a twenty-sixth rectangular metal matching block, the nineteenth rectangular cavity, the twentieth rectangular cavity, the twenty-first rectangular cavity and the twenty-second rectangular cavity are sequentially communicated, the length direction of the nineteenth rectangular cavity, the twentieth rectangular cavity and the twenty-first rectangular cavity is along the front-back direction, the width direction is along the left-right direction, and the height direction is along the up-down direction, the twenty-third rectangular metal matching block, the twenty-fourth rectangular metal matching block,The length direction of the twenty-fifth rectangular metal matching block is along the up-down direction, the width direction is along the front-back direction, the height direction is along the left-right direction, the length direction of the twenty-second rectangular cavity is along the left-right direction, the width direction is along the front-back direction, and the height direction is the up-down direction, the length direction of the twenty-sixth rectangular metal matching block is along the left-right direction, the width direction is along the front-back direction, and the height direction is the up-down direction, the nineteenth rectangular cavity, the twentieth rectangular cavity and the twenty-first rectangular cavity have the same length, the width of the twentieth rectangular cavity is smaller than the width of the nineteenth rectangular cavity, the width of the twenty-first rectangular cavity is smaller than the width of the twentieth rectangular cavity, the width of the twenty-second rectangular cavity is smaller than the length of the twenty-first rectangular cavity, the height of the twenty-second rectangular cavity is smaller than the height of the twenty-first rectangular cavity, the width of the twenty-sixth rectangular metal matching block is smaller than the width of the twenty-second rectangular cavity, the height of the twenty-sixth rectangular metal matching block is smaller than the height of the twenty-second rectangular cavity, the lower end surface of the nineteenth rectangular cavity is located in the same plane with the lower end surface of the ninth rectangular metal block, the lower end surface of the twentieth rectangular cavity is fixedly connected with the upper end surface of the nineteenth rectangular cavity and in an adhered state, the lower end surface of the twenty-first rectangular cavity is fixedly connected with the upper end surface of the twentieth rectangular cavity and in an adhered state, the left end surface of the twenty-second rectangular cavity is fixedly connected with the right end surface of the twenty-first rectangular cavity and in an adhered state, the front-back direction symmetry planes of the nineteenth rectangular cavity, the twentieth rectangular cavity and the twenty-first rectangular cavity are located in the same plane, the left-right direction symmetry planes of the nineteenth rectangular cavity, the twentieth rectangular cavity, the twenty-first rectangular cavity and the twenty-second rectangular cavity are located in the same plane, the twenty-third rectangular metal matching block, the twenty-fourth rectangular metal matching block and the twenty-fifth rectangular metal matching block have the same width, the width of the twenty-third rectangular metal matching block is smaller than the length of the twenty-first rectangular cavity, the length of the twenty-third rectangular metal matching block is smaller than the height of the twenty-first rectangular cavity, the length of the twenty-fourth rectangular metal matching block is smaller than the length of the twenty-third rectangular metal matching block, the length of the twenty-fifth rectangular metal matching block is smaller than the length of the twenty-fourth rectangular metal matching block, the sum of the heights of the twenty-third rectangular metal matching block, the twenty-fourth rectangular metal matching block and the twenty-fifth rectangular metal matching block is smaller than the width of the twenty-first rectangular cavity, the height of the twenty-sixth rectangular metal matching block is the same as the length of the twenty-fifth rectangular metal matching block, the width of the twenty-sixth rectangular metal matching block is smaller than the width of the twenty-fifth rectangular metal matching block, and the twenty-third rectangular metal matching block, the twenty-fourth rectangular metal matching block and the twenty-fifth rectangular metal matching block are all located in the twenty-first rectangular cavity.The twenty-sixth rectangular metal matching block is located in the twenty-first rectangular cavity and the twenty-second rectangular cavity, the twenty-third rectangular metal matching block, the twenty-fourth rectangular metal matching block, the twenty-fifth rectangular metal matching block, the twenty-sixth rectangular metal matching block are sequentially connected from left to right, the left end surface of the twenty-third rectangular metal matching block is fixedly connected with the left end surface of the twenty-first rectangular cavity in a matched mode and is fixed on the ninth rectangular metal block, the left end surface of the twenty-fourth rectangular metal matching block is fixedly connected with the right end surface of the twenty-third rectangular metal matching block in a matched mode, the left end surface of the twenty-fifth rectangular metal matching block is fixedly connected with the right end surface of the twenty-fourth rectangular metal matching block in a matched mode, the left end surface of the twenty-sixth rectangular metal matching block is fixedly connected with the right end surface of the twenty-fifth rectangular metal matching block in a matched mode, the upper end surfaces of the twenty-third rectangular metal matching block, the twenty-fourth rectangular metal matching block, the twenty-fifth rectangular metal matching block and the twenty-sixth rectangular metal matching block are located on the same plane, the symmetry planes of the twenty-third rectangular metal matching block, the twenty-fourth rectangular metal matching block, the twenty-fifth rectangular metal matching block, the twenty-sixth rectangular metal matching block and the twenty-second rectangular cavity along the left-right direction are located on the same plane, the right end surface of the twenty-sixth rectangular metal matching block is located on the same plane with the right end surface of the twenty-second rectangular cavity, the symmetry plane of the twenty-sixth rectangular metal matching block along the up-down direction is located on the same plane with the symmetry plane of the twenty-second rectangular cavity along the up-down direction, the tenth rectangular metal block is provided with a one-to-four coaxial feeding network, the one-to-four coaxial feeding network is composed of a one-to-four power divider, the one-to-four power divider has one input port and four output ports, the input port of the one-to-four power divider is connected with the right end surface of the twenty-sixth rectangular metal matching block, the input port of the one-to-four power divider is the input port of the one-to-four coaxial feeding layer and is used for accessing one-way external TE10 mode signal, the four output ports of the one-to-four power divider are four output ports of the one-to-four coaxial feeding layer and are used for one-to-one corresponding output of four-way equal-amplitude in-phase TEM mode signals generated, the four output ports of the one-to-four coaxial feeding layer are one-to-one corresponding connected with the four third coaxial interface surfaces of the adjustable reflection type phase shifter group.

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