A phased array radar antenna

Abstract

The present invention discloses a phased array radar antenna, belonging to the technical field of radar antennas. It includes an arrangement switching component. The arrangement switching component includes an upper cover plate and a lower cover plate, and a positioning component is arranged between the upper cover plate and the lower cover plate. A plurality of jacks are arranged on the upper cover plate, and the jacks are arranged in a dot matrix. A slideway is arranged between every two adjacent jacks, and the slideway divides the upper cover plate into a plurality of partition blocks. Among them, antenna unit components are arranged in a plurality of jacks, and the plurality of antenna unit components can be freely arranged into different antenna arrays. Through the present invention, it is realized that according to actual needs, the user can move the positions of the antenna unit components by himself to change the antenna array formed by the arrangement of the antenna unit components, without having to return to the manufacturer and ask professional staff to operate. Moreover, the structure is simple, stable, easy to operate, and very convenient.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of radar antennas, and specifically to a phased array radar antenna. Background Art

[0002] Phased array radar is a phase-controlled electronically scanned array radar. It uses a large number of individually controlled small antenna units arranged into an antenna array surface. Each antenna unit is controlled by an independent phase shift switch. By controlling the phase of the transmission of each antenna unit, different phase beams can be synthesized. The electromagnetic waves emitted by each antenna unit of the phased array are synthesized into a nearly straight radar main lobe based on the principle of interference, while the side lobes are caused by the unevenness of each antenna unit.

[0003] Radar is a device used to radiate and receive electromagnetic waves and determine the direction of detection. When transmitting, the radar must concentrate the energy to radiate in the direction required, and when receiving, it should only receive the echo in the detection direction as much as possible, and distinguish the azimuth and elevation of the target, or one of the two. Among the three coordinates (azimuth, elevation and distance) of the target position measured by radar, the measurement of two coordinates (azimuth and elevation) is directly related to the performance of the antenna. The antenna is a converter that converts the guided wave propagating on the transmission line into electromagnetic waves propagating in an unbounded medium (usually free space), or vice versa. A component used to transmit or receive electromagnetic waves in radio equipment.

[0004] In the existing phased array radar antennas, the antenna array surface formed by the arrangement of antenna units is generally in the form of card connection. The antenna units are installed one by one in the card slots on the reflector and fixed. If you want to change the arrangement mode of the antenna array surface, you usually need to go back to the manufacturer and ask a professional person in charge to make changes. The operation is very inconvenient and it is not suitable for buyers to change the array surface by themselves according to actual needs. Summary of the invention

[0005] The technical solution of the present invention aims at the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technologies. Specifically, the present invention mainly provides a phased array radar antenna to solve the technical problem raised in the above background technology that the user cannot change the arrangement pattern of the antenna array according to his own needs.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] A phased array radar antenna includes an arrangement switching component. The arrangement switching component includes an upper cover plate and a lower cover plate, and a positioning component is arranged between the upper cover plate and the lower cover plate. A plurality of jacks are arranged on the upper cover plate, and the jacks are arranged in a dot matrix. A slideway is arranged between every two adjacent jacks, and the slideway divides the upper cover plate into a plurality of partition blocks. A plurality of antenna unit components are arranged in the plurality of jacks, and the plurality of antenna unit components can be freely arranged into different antenna arrays.

[0008] Preferably, each antenna unit component includes a microstrip antenna unit piece. A base block and a plug post below the base block are arranged on the lower side of each microstrip antenna unit piece. The plug post is movably connected with a sleeve, a spring is arranged in the sleeve, and the upper end and the lower end of the spring are respectively connected with the lower end of the plug post and the lower side inner wall of the sleeve.

[0009] Preferably, a limiting port is arranged at the upper edge position of each jack, and the limiting port fits with the base block.

[0010] Preferably, isolation bands are arranged at the peripheral side edge positions of each microstrip antenna unit piece.

[0011] Preferably, a flanging part is arranged at the upper edge position of each sleeve, and the upper side of the flanging part is slidably connected with the lower side of the upper cover plate. An armature block is arranged at the bottom of the outer wall of each sleeve.

[0012] Preferably, the positioning component includes a bottom plate and a support plate. An iron core is arranged between the bottom plate and the support plate. A plurality of first positioning posts are arranged on the support plate, and the first positioning posts are arranged in a dot matrix. The upper end of each first positioning post is connected with the lower side of the corresponding partition block. Second positioning posts are arranged at the four vertex positions of the upper surface of the support plate, and the upper ends of the second positioning posts are connected with the lower side of the upper cover plate.

[0013] Preferably, threaded posts are arranged at both ends of the iron core. The two threaded posts are respectively connected with threaded holes on the support plate and the bottom plate, and a wire wound in a spiral shape is arranged on the iron core.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] (1) By arranging the lower cover plate, the upper cover plate, the jacks, the limiting ports, the slideways and the partition blocks, the present invention enables the user to move the positions of the antenna unit components by himself according to actual needs to change the antenna array formed by the arrangement of the antenna unit components. Constrained by the flanging part, the sleeve is constrained under the upper cover plate and can only move on the plane under the upper cover plate. Under the action of the base block, the plug post and the spring, the plug post can change direction and shift in the slideway and be stably positioned at the limiting port where the slideways meet, without having to invite professional staff to operate at the manufacturer, which is very convenient and fast.

[0016] (2) Through the mutual cooperation between the first positioning post and the second positioning post, the present invention provides a stable moving and transposing space between the upper cover plate and the lower cover plate. And with the cooperation of the iron core, the threaded post, the support plate, the bottom plate and the wire, it forms the form of an electromagnet. After the antenna unit components are arranged into a new antenna array surface, it is further adsorbed and fixed to prevent the antenna unit components from accidentally falling during the movement process. Moreover, the structure is simple and stable, suitable for outdoor use.

[0017] The following will explain and illustrate the present invention in detail in conjunction with the drawings and specific embodiments. Description of the Drawings

[0018] Figure 1 is the overall structural schematic diagram of the present invention;

[0019] Figure 2 is the overall exploded structural schematic diagram of the present invention;

[0020] Figure 3 is the exploded structural schematic diagram of the antenna unit components of the present invention;

[0021] Figure 4 is the exploded structural schematic diagram of the positioning component of the present invention.

[0022] Description of the Drawings: 1. Arrangement switching component; 11. Lower cover plate; 12. Upper cover plate; 13. Jack; 131. Limit port; 14. Slideway; 15. Partition block; 2. Antenna unit components; 21. Microstrip antenna unit piece; 211. Base block; 212. Insert post; 213. Isolation band; 22. Spring; 23. Sleeve; 231. Flanging part; 232. Armature block; 3. Positioning component; 31. Iron core; 311. Threaded post; 32. Support plate; 321. First positioning post; 322. Second positioning post; 33. Bottom plate; 34. Wire. Detailed Embodiments

[0023] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, providing these embodiments is to make the disclosed content of the present invention more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed on" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs. The terms used in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items.

[0026] Example 1, please refer specifically to the attached Figures 1-4 As shown, a phased array radar antenna includes an arrangement switching component 1. The arrangement switching component 1 includes an upper cover plate 12 and a lower cover plate 11, and a positioning component 3 is provided between the upper cover plate 12 and the lower cover plate 11. A plurality of jacks 13 are provided on the upper cover plate 12. The jacks 13 are arranged in a dot matrix. A slideway 14 is provided between every two adjacent jacks 13. The slideway 14 divides the upper cover plate 12 into a plurality of partition blocks 15. Among them, a plurality of antenna unit components 2 are provided in the plurality of jacks 13, and the plurality of antenna unit components 2 can be freely arranged into different antenna arrays.

[0027] Through the mutual cooperation among the arrangement switching component 1, the antenna unit component 2 and the positioning component 3, the above structure realizes that according to actual needs, the user can move the position of the antenna unit component 2 by himself to change the antenna array formed by the arrangement of the antenna unit component 2, without going back to the manufacturer and asking professional staff to operate. Moreover, the structure is simple, stable, easy to operate and very convenient.

[0028] The specific operation is as follows. If it is necessary to change the antenna array, first disconnect the power supply of the wire 34. Then, the magnetic force of the electromagnet composed of the iron core 31 and the wire 34 on the armature block 232 disappears. Then, lift the microstrip antenna unit piece 21 and move it up by a distance equal to the height of one base block 211, so that the base block 211 is disengaged from the limit port 131, and the spring 22 is stretched. Then, the plug post 212 can slide in the slideway 14, switch the direction, change the position. After moving to a suitable position, release the microstrip antenna unit piece 21, and the base block 211 is clamped into the limit port 131 again, and the spring 22 returns to its original position. Subsequently, repeat the above steps to move the remaining antenna unit components 2. After arranging the array, connect the power supply on the wire 34 so that the armature block 232 can be firmly adsorbed on the support plate 32, thereby positioning each antenna unit component 2.

[0029] Example 2, please refer specifically to the attached Figure 2 and 3As shown, each of the antenna unit components 2 includes a microstrip antenna unit piece 21, and each of the microstrip antenna unit pieces 21 is provided with a base block 211 and a plug post 212 on the lower side of the base block 211 on the lower side, and the plug post 212 is movably connected with a sleeve 23, and a spring 22 is provided in the sleeve 23, and the upper and lower ends of the spring 22 are respectively connected to the lower end of the plug post 212 and the lower side of the inner wall of the sleeve 23, and a limiting opening 131 is provided at the upper edge of each of the sockets 13, and the limiting opening 131 is fitted with the base block 211. Through the restraining force of the spring 22, after the antenna unit component 2 forms an antenna array surface, each microstrip antenna unit piece 2 is The base block 211 of the element piece 21 can be firmly clamped in the limit opening 131. An isolation belt 213 is provided on the four side edges of each of the microstrip antenna unit pieces 21. The isolation belt 213 is used to change the flow direction of the surface current of the microstrip antenna unit piece 21, thereby increasing the isolation between the microstrip antenna unit pieces 21. A folded edge portion 231 is provided at the upper edge of each of the sleeves 23, and the upper side of the folded edge portion 231 is slidably connected to the lower side of the upper cover plate 12. An armature block 232 is provided at the bottom of the outer wall of each of the sleeves 23. The folded edge portion 231 is used to limit the sleeve 23 to prevent the sleeve 23 from moving up and down.

[0030] Example 3, please refer to the attached Figure 4 As shown, the positioning assembly 3 includes a bottom plate 33 and a support plate 32, an iron core 31 is arranged between the bottom plate 33 and the support plate 32, a plurality of first positioning columns 321 are arranged on the support plate 32, and the first positioning columns 321 are arranged in a dot matrix, and the upper end of each of the first positioning columns 321 is connected to the lower side of the corresponding partition block 15, and the four vertex positions on the upper surface of the support plate 32 are provided with second positioning columns 322, and the upper end of the second positioning columns 322 is connected to the lower side of the upper cover plate 12, through the first positioning The column 321 and the second positioning column 322 provide a stable movement and displacement space between the upper cover plate 12 and the lower cover plate 11. Threaded columns 311 are provided at both ends of the iron core 31. The two threaded columns 311 are respectively connected to the threaded holes on the support plate 32 and the bottom plate 33, and the iron core 31 is provided with a spirally wound wire 34. Through the cooperation of the iron core 31 and the wire 34, an electromagnet is formed to adsorb the armature block 232, thereby achieving the purpose of further fixing the antenna unit 2.

[0031] The above is an exemplary description of the present invention in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A phased array radar antenna, comprising an arrangement switching component (1), characterized in that , The arrangement switching component (1) includes an upper cover plate (12) and a lower cover plate (11), and a positioning component (3) is arranged between the upper cover plate (12) and the lower cover plate (11). A plurality of jacks (13) are arranged on the upper cover plate (12), and the jacks (13) are arranged in a dot matrix. A slideway (14) is arranged between every two adjacent jacks (13), and the slideway (14) divides the upper cover plate (12) into a plurality of partition blocks (15). Among them, antenna unit components (2) are arranged in a plurality of the jacks (13), and the plurality of antenna unit components (2) can be freely arranged into different antenna arrays; Each of the antenna unit components (2) includes a microstrip antenna unit sheet (21). A base block (211) is arranged on the lower side of each microstrip antenna unit sheet (21), and a plug post (212) is arranged on the lower side of the base block (211). The plug post (212) is movably connected with a sleeve (23), a spring (22) is arranged in the sleeve (23), and the upper end and the lower end of the spring (22) are respectively connected with the lower end of the plug post (212) and the lower side inner wall of the sleeve (23); A flanging part (231) is arranged at the upper edge position of each sleeve (23), and the upper side of the flanging part (231) is slidably connected with the lower side of the upper cover plate (12). An armature block (232) is arranged at the bottom of the outer wall of each sleeve (23).

2. The phased array radar antenna according to claim 1, characterized in that, A limiting port (131) is arranged at the upper edge position of each jack (13), and the limiting port (131) is mutually fitted with the base block (211).

3. The phased array radar antenna according to claim 1, characterized in that, An isolation band (213) is arranged at the peripheral side edge position of each microstrip antenna unit sheet (21).

4. The phased array radar antenna according to claim 1, characterized in that, The positioning component (3) includes a bottom plate (33) and a support plate (32). An iron core (31) is arranged between the bottom plate (33) and the support plate (32). A plurality of first positioning posts (321) are arranged on the support plate (32), and the first positioning posts (321) are arranged in a dot matrix. The upper end of each first positioning post (321) is connected with the lower side of the corresponding partition block (15). Second positioning posts (322) are arranged at the four vertex positions of the upper surface of the support plate (32), and the upper ends of the second positioning posts (322) are connected with the lower side of the upper cover plate (12).

5. The phased array radar antenna according to claim 4, characterized in that, Threaded posts (311) are arranged at both ends of the iron core (31), and the two threaded posts (311) are respectively connected with threaded holes on the support plate (32) and the bottom plate (33), and a wire (34) wound in a spiral shape is arranged on the iron core (31).

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