A common aperture antenna and electronic device

Abstract

This application provides a common-aperture antenna and electronic device. The common-aperture antenna includes multiple radiating patches and horizontally polarized feed lines. The horizontally polarized feed lines include a first horizontally polarized feed line and a second horizontally polarized feed line. At least one first shared patch is included among the multiple radiating patches. The first and second horizontally polarized feed lines excite the same first shared patch to generate orthogonal radiating polarizations. By making the radiating polarizations generated by the first and second horizontally polarized feed lines exciting the same first shared patch orthogonal, two radiating fields can coexist on the same patch without coupling, achieving self-decoupling. Furthermore, the first shared patch can be reused in different radiating arrays, significantly improving aperture utilization, forming a common-aperture antenna, and reducing antenna complexity and size.

Description

Technical Field

[0001] This application belongs to the field of antenna technology, and in particular relates to a common aperture antenna and electronic equipment. Background Technology

[0002] In wireless communication systems, antennas are key components for signal reception and transmission. Traditional antenna array designs typically employ a non-common-aperture scheme to achieve dual-polarization or multi-array operation, meaning separate antenna arrays are used for different radiated signals. While this approach is simple to design, it suffers from high cross-polarization levels, large size, and low aperture efficiency. Summary of the Invention

[0003] The purpose of this application is to provide a common aperture antenna and electronic device, which aims to solve the problem of array element multiplexing in conventional antenna technology.

[0004] A first aspect of this application provides a common-aperture antenna, which includes a plurality of radiating patches and a horizontally polarized feed line; the horizontally polarized feed line is provided with a plurality of coupling ports, the coupling ports being used for coupling connection with corresponding radiating patches, and the horizontally polarized feed line being used for transmitting horizontally polarized signals; the horizontally polarized feed line includes a first horizontally polarized feed line and a second horizontally polarized feed line, and the plurality of radiating patches includes at least one first common patch, wherein the first horizontally polarized feed line and the second horizontally polarized feed line excite the same first common patch to generate orthogonal radiating polarizations.

[0005] In one embodiment, the first common patch is a rectangular patch, and the two ends of one side of the first common patch are coupled to the first horizontal polarization feed line and the second horizontal polarization feed line, respectively. On the same first common patch, the polarization angle of the radiation generated based on the horizontal polarization signal provided by the first horizontal polarization feed line is 45°, and the polarization angle of the radiation generated based on the horizontal polarization signal provided by the second horizontal polarization feed line is -45°.

[0006] In one embodiment, the horizontal polarization feed line includes at least one first pixelated feed line, and the plurality of radiating patches include at least one second common patch. The two ends of the first pixelated feed line are respectively coupled to the first common patch and the second common patch. The first pixelated feed line is used to transmit horizontal polarization signals and make the horizontal polarization radiation phase of the first common patch equal to the horizontal polarization radiation phase of the second common patch.

[0007] In one embodiment, the first pixelated feed line is further used to make the horizontal polarization excitation amplitude of the first common patch greater than the horizontal polarization excitation amplitude of the second common patch.

[0008] In one embodiment, the common-aperture antenna includes a vertically polarized feed line; the vertically polarized feed line has multiple coupling ports, each used to couple with a corresponding radiating patch; the vertically polarized feed line is used to transmit vertically polarized signals; the vertically polarized feed line includes a first vertically polarized feed line, a second vertically polarized feed line, a second pixelated feed line, and a third pixelated feed line; at least one radiating patch coupled to the first vertically polarized feed line is coupled to a first end of the second pixelated feed line; the second end of the second pixelated feed line is coupled to one of the first common patch and the second common patch; the second pixelated feed line is used to transmit vertically polarized signals and enables the first common patch to transmit vertically polarized signals. The vertical polarization radiation phase of the first common patch and the vertical polarization radiation phase of the second common patch are equal to the vertical polarization radiation phase of the radiating patch coupled to the first vertical polarization feed line; at least one radiating patch coupled to the second vertical polarization feed line is coupled to the first end of the third pixelated feed line, and the second end of the third pixelated feed line is coupled to one of the first common patch and the second common patch. The third pixelated feed line is used to transmit vertical polarization signals and makes the vertical polarization radiation phase of the first common patch and the vertical polarization radiation phase of the second common patch equal to the vertical polarization radiation phase of the radiating patch coupled to the second vertical polarization feed line.

[0009] In one embodiment, the second pixelated feed line is further configured to make the vertical polarization excitation amplitude of the first common patch or the second common patch less than the vertical polarization excitation amplitude of the radiating patch coupled to the first vertical polarization feed line; the third pixelated feed line is further configured to make the vertical polarization excitation amplitude of the first common patch and the vertical polarization excitation amplitude of the second common patch less than the vertical polarization excitation amplitude of the radiating patch coupled to the second vertical polarization feed line.

[0010] In one embodiment, the first horizontally polarized feed line and the second horizontally polarized feed line are respectively connected to different horizontally polarized feed ports. Both the first horizontally polarized feed line and the second horizontally polarized feed line include multiple horizontally polarized feed line segments. The horizontally polarized feed line segments are used to connect two adjacent radiating patches. On the transmission path of the horizontally polarized signal, the line width of the horizontally polarized feed line segment is narrower the farther away from the horizontally polarized feed port.

[0011] In one embodiment, the first vertical polarization feed line and the second vertical polarization feed line are respectively connected to different vertical polarization feed ports. Both the first vertical polarization feed line and the second vertical polarization feed line include multiple vertical polarization feed line segments. The vertical polarization feed line segments are used to connect two adjacent radiating patches. On the transmission path of the vertical polarization signal, the line width of the vertical polarization feed line segment farther away from the vertical polarization feed port is narrower.

[0012] In one embodiment, the horizontal polarization feed line further includes at least one fourth pixelation feed line, and the plurality of radial patches include at least one horizontal polarization patch. The first end of the fourth pixelation feed line is coupled to the horizontal polarization patch, and at least one radial patch coupled to the first horizontal polarization feed line or the second horizontal polarization feed line is coupled to the second end of the fourth pixelation feed line.

[0013] A second aspect of this application also provides an electronic device, which includes a common-aperture antenna as described above.

[0014] The beneficial effects of this invention compared to existing technologies are as follows: radiating patches coupled to the same horizontally polarized feed line have the same polarization direction to form a radiating array. Orthogonal radiating polarization means that the electric field vectors of the two radiating fields are perpendicular to each other. By making the radiating polarizations generated by the first and second horizontally polarized feed lines excite the same first shared patch orthogonal, the two radiating fields can coexist on the same patch without coupling, achieving self-decoupling. Furthermore, the first shared patch can be reused in different radiating arrays, significantly improving aperture utilization and forming a common-aperture antenna, reducing antenna complexity and size while maintaining antenna performance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the horizontal polarization of a common-aperture antenna provided in an embodiment of this application; Figure 2 A schematic diagram of the vertical polarization of a common-aperture antenna provided in an embodiment of this application; Figure 3 This is a schematic diagram of a patch array of a common aperture antenna provided in an embodiment of this application; Figure 4 A schematic diagram of a first horizontal polarization feeder provided in an embodiment of this application; Figure 5 A schematic diagram of a first vertical polarization feeder provided in an embodiment of this application; Figure 6 This is a schematic diagram of a circuit board for a common aperture antenna provided in one embodiment of this application.

[0016] Specific element symbol descriptions: 100, coupling port; 210, first horizontally polarized feed line; 220, second horizontally polarized feed line; 230, horizontally polarized power supply port; 240, horizontally polarized feed line segment; 310, first common patch; 320, second common patch; 330, horizontally polarized patch; 410, first pixelated feed line; 420, second pixelated feed line; 430, third pixelated feed line; 440, fourth pixelated feed line; 510, first vertically polarized feed line; 520, second vertically polarized feed line; 530, vertically polarized power supply port; 540, vertically polarized feed line segment; 610, first circuit board; 620, second circuit board. Detailed Implementation

[0017] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0018] It should be noted that when a component is referred to as being "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0019] It should be understood that the terms "length", "width", "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0021] Please see Figure 1 , Figure 1 A schematic diagram of the horizontal polarization of the common-aperture antenna provided in this embodiment is shown.

[0022] A common aperture antenna includes multiple radiating patches and a horizontally polarized feed line.

[0023] The horizontally polarized feeder has multiple coupling ports 100, which are used to couple with the corresponding radiating patch. The horizontally polarized feeder is used to transmit horizontally polarized signals. Specifically, the coupling port 100 refers to the connection port where energy transfer between the feeder and the radiating patch is achieved through electromagnetic coupling, typically via gaps, proximity coupling, or other methods.

[0024] The horizontal polarization feed line includes a first horizontal polarization feed line 210 and a second horizontal polarization feed line 220. Among the multiple radiating patches, at least one first common patch 310 is included. The first horizontal polarization feed line 210 and the second horizontal polarization feed line 220 excite the same first common patch 310 to generate orthogonal radiating polarization.

[0025] It is understandable that radiating patches coupled to the same horizontally polarized feed line have the same polarization direction to form a radiating array. Orthogonal radiating polarization means that the electric field vectors of the two radiating fields are perpendicular to each other. By making the radiating polarizations generated by the first horizontally polarized feed line 210 and the second horizontally polarized feed line 220 excite the same first shared patch 310 orthogonal, the two radiating fields can coexist on the same patch without coupling, achieving self-decoupling. Furthermore, the first shared patch 310 can be reused in different radiating arrays, significantly improving aperture utilization, forming a common-aperture antenna, and reducing antenna complexity and size.

[0026] In one embodiment, please refer to Figure 1 The radiation array based on the first horizontal polarization feed line 210 and the radiation array based on the second horizontal polarization feed line 220 are arranged in a mirror symmetric layout in space.

[0027] In one embodiment, please refer to Figure 1 Both the first horizontal polarization feed line 210 and the second horizontal polarization feed line 220 are H-polarization feed lines.

[0028] In one embodiment, please refer to Figure 1 The first common patch 310 is a rectangular patch. One end of one side of the first common patch 310 is coupled to the first horizontal polarization feed line 210 and the second horizontal polarization feed line 220, respectively. On the same first common patch 310, the polarization angle of the radiation generated based on the horizontal polarization signal provided by the first horizontal polarization feed line 210 is 45°, and the polarization angle of the radiation generated based on the horizontal polarization signal provided by the second horizontal polarization feed line 220 is -45°. 45° polarization means that the electric field vector forms a 45° angle with the positive direction of the reference coordinate axis, and -45° polarization means that the electric field vector forms a -45° angle with the positive direction of the reference coordinate axis. The angle between the two is 90°, and they are orthogonal to each other.

[0029] It should be noted that the polarization direction generated by the radiating patch varies depending on the excitation location (the location where the horizontal polarization signal is injected). Therefore, when the two ends of one side of the first common patch 310 are coupled to the first horizontal polarization feed line 210 and the second horizontal polarization feed line 220 respectively, the generated radiating polarization is orthogonal.

[0030] The 45° and -45° polarization combination has the advantages of good symmetry and easy matching with subsequent processing circuits, and is especially suitable for dual-polarized antennas.

[0031] In one embodiment, please refer to Figure 1 The horizontal polarization feed line includes at least one first pixelated feed line 410, and the plurality of radiating patches include at least one second common patch 320. The two ends of the first pixelated feed line 410 are respectively coupled to the first common patch 310 and the second common patch 320. The first pixelated feed line 410 is used to transmit horizontal polarization signals and make the horizontal polarization radiation phase of the first common patch 310 equal to the horizontal polarization radiation phase of the second common patch 320.

[0032] It should be noted that a pixelated feed line is a microstrip transmission line segment with a special patterned (mosaic-like) distribution. Pixelated feed lines are formed by slotting rectangular metal sheets, introducing numerous discontinuous parasitic capacitances and inductances. These parasitic capacitances and inductances directly affect the equivalent electrical length and impedance of the pixelated feed line, thus enabling amplitude and phase modulation. The pixelated feed line features an axisymmetric design, achieving reciprocity in connecting patches through its symmetrical structure, ensuring a balance between input and output signals.

[0033] For example, in one embodiment, the first pixelated feed line 410 has four quadrants, with 8×22 coding spaces set in each quadrant. Each coding space has a size of 0.6mm×0.6mm. Copper is poured when the coding is 1, and no copper is poured when the coding is 0. By optimizing the configuration of the coding sequence, the phase response and amplitude attenuation characteristics of the first pixelated feed line 410 can be precisely controlled.

[0034] In one embodiment, the first pixelated feed line 410 is further configured to make the horizontal polarization excitation amplitude of the first common patch 310 greater than the horizontal polarization excitation amplitude of the second common patch 320.

[0035] Understandably, the pixelation pattern distribution of the first pixelated feed line 410 in the polarization orthogonal direction determines the characteristic impedance of that feed line segment, thus affecting the power distribution ratio. By adjusting the encoding distribution of the first pixelated feed line 410, precise control of the excitation amplitude ratio between shared patches can be achieved.

[0036] When the horizontal polarization excitation amplitude of the first common patch 310 is greater than that of the second common patch 320, the coupling between the two radiation arrays on the second common patch 320 can be reduced, thereby increasing the isolation between the two radiation arrays.

[0037] Depending on the application scenario, the ratio of the horizontal polarization excitation amplitude of the first common patch 310 to the horizontal polarization excitation amplitude of the second common patch 320 can be flexibly selected between 1.5:1 and 3:1.

[0038] In one embodiment, the excitation amplitude of the first common patch 310 is twice the excitation amplitude of the second common patch 320.

[0039] In one embodiment, please refer to Figure 1 The horizontal polarization feed line also includes at least one fourth pixelation feed line 440, and the plurality of radiating patches include at least one horizontal polarization patch 330. The first end of the fourth pixelation feed line 440 is coupled to the horizontal polarization patch 330, and at least one radiating patch coupled to the first horizontal polarization feed line 210 or the second horizontal polarization feed line 220 is coupled to the second end of the fourth pixelation feed line 440.

[0040] By configuring the number and position of the horizontal polarization patches 330, the radiating patches can be uniformly arrayed. The horizontal polarization patches 330 are coupled and connected by the fourth pixelated feed line 440, which allows for precise configuration of the excitation phase and amplitude of the horizontal polarization patches 330. Specifically, the fourth pixelated feed line 440 can make the excitation amplitude of the horizontal polarization patches 330 lower than that of the connected radiating patches, thereby achieving fine-grained control of the radiation pattern without increasing the feeding complexity and effectively suppressing the sidelobes of the radiation pattern.

[0041] Please see Figure 2 , Figure 2 A schematic diagram of the vertical polarization of the common-aperture antenna provided in this embodiment is shown.

[0042] In one embodiment, the common-aperture antenna includes a vertically polarized feed.

[0043] The vertical polarization feed line is provided with multiple coupling ports 100, which are used to couple with the corresponding radiating patch. The vertical polarization feed line is used to transmit vertical polarization signals. The vertical polarization feed line includes a first vertical polarization feed line 510, a second vertical polarization feed line 520, a second pixelation feed line 420, and a third pixelation feed line 430.

[0044] At least one radiating patch coupled to the first vertical polarization feed line 510 is coupled to the first end of the second pixelated feed line 420. The second end of the second pixelated feed line 420 is coupled to one of the first common patch 310 and the second common patch 320. The second pixelated feed line 420 is used to transmit vertical polarization signals and makes the vertical polarization radiation phase of the first common patch 310 and the vertical polarization radiation phase of the second common patch 320 equal to the vertical polarization radiation phase of the radiating patch coupled to the first vertical polarization feed line 510.

[0045] At least one radiating patch coupled to the second vertical polarization feed line 520 is coupled to the first end of the third pixelation feed line 430, and the second end of the third pixelation feed line 430 is coupled to one of the first common patch 310 and the second common patch 320. The third pixelation feed line 430 is used to transmit vertical polarization signals and makes the vertical polarization radiation phase of the first common patch 310 and the vertical polarization radiation phase of the second common patch 320 equal to the vertical polarization radiation phase of the radiating patch coupled to the second vertical polarization feed line 520.

[0046] Similar to the horizontally polarized pixelated feed line, the second pixelated feed line 420 and the third pixelated feed line 430 adjust the phase in the polarization direction through their pixelation patterns, enabling the excitation unit and the excited unit to remain in phase. By keeping the excitation unit and the excited unit in phase, coherent superposition of radiated energy can be achieved, significantly improving the main lobe gain. The second pixelated feed line 420 and the third pixelated feed line 430 enable the sharing of radiating patches (first shared patch 310 and second shared patch 320) of the two radiating arrays in the vertical polarization direction.

[0047] Please see Figure 3 , Figure 3 A schematic diagram of the patch array of the common aperture antenna provided in this embodiment is shown.

[0048] Exemplarily, in one embodiment, please refer to Figure 3 The common-aperture antenna consists of 20 radiating patches arranged in a rectangular array of five rows and four columns. Specifically, the first patch is located in the first row and first column, the second patch is located in the first row and second column, and so on, as well as the twentieth patch is located in the fifth row and fourth column.

[0049] The first horizontally polarized feed line 210 is coupled to the second, third, sixth, seventh, tenth, and eleventh patches, and the second horizontally polarized feed line 220 is coupled to the tenth, eleventh, fourteenth, fifteenth, eighteenth, and nineteenth patches.

[0050] The common-aperture antenna includes two first-pixelated feed lines 410 and eight fourth-pixelated feed lines 440. One first-pixelated feed line 410 is coupled to the ninth and tenth patches at both ends, respectively, while the other first-pixelated feed line 410 is coupled to the eleventh and twelfth patches at both ends, respectively. The eight fourth-pixelated feed lines 440 are coupled to the first and second patches, the third and fourth patches, the fifth and sixth patches, the seventh and eighth patches, the thirteenth and fourteenth patches, the fifteenth and sixteenth patches, the seventeenth and eighteenth patches, and the nineteenth and twentieth patches, respectively.

[0051] The first vertical polarization feed line 510 is coupled to the first, second, third, fourth, fifth, sixth, seventh, and eighth patches, and the second vertical polarization feed line 520 is coupled to the thirteenth, fourteenth, fifteenth, sixteenth, seventeenth, eighteenth, nineteenth, and twentieth patches.

[0052] The common-aperture antenna includes four second-pixelated feed lines 420 and four third-pixelated feed lines 430. The four second-pixelated feed lines 420 are respectively coupled to the fifth patch and the ninth patch, the sixth patch and the tenth patch, the seventh patch and the eleventh patch, and the eighth patch and the twelfth patch. The four third-pixelated feed lines 430 are respectively coupled to the ninth patch and the thirteenth patch, the tenth patch and the fourteenth patch, the eleventh patch and the fifteenth patch, and the twelfth patch and the sixteenth patch.

[0053] It is understandable that the tenth and eleventh patches are the first shared patch 310, and the ninth and twelfth patches are the second shared patch 320.

[0054] Through the aforementioned coupling connections, patches 1 to 12 form the first array, and patches 9 to 20 form the second array. The first and second arrays share patches 9 to 12. Simultaneously, both the first and second arrays are both horizontally and vertically polarized arrays. Utilizing the pixelated feed line's dual amplitude and phase control capabilities, efficient reuse of space and antenna resources is achieved for the dual-polarized common-aperture antenna.

[0055] Through the coordinated design of the first horizontal polarization feed line 210, the second horizontal polarization feed line 220, the first vertical polarization feed line 510, the second vertical polarization feed line 520, the first pixelated feed line 410, the second pixelated feed line 420 and the third pixelated feed line 430, the multi-array multiplexing of the first common patch 310 and the second common patch 320 is realized, and a dual-polarization common aperture antenna is constructed in a limited space.

[0056] In one embodiment, the second pixelation feed line 420 is further configured to make the vertical polarization excitation amplitude of the first common patch 310 and the vertical polarization excitation amplitude of the second common patch 320 smaller than the vertical polarization excitation amplitude of the radiating patch coupled to the first vertical polarization feed line 510.

[0057] The third pixelation feed line 430 is also used to make the vertical polarization excitation amplitude of the first common patch 310 or the vertical polarization excitation amplitude of the second common patch 320 smaller than the vertical polarization excitation amplitude of the radiating patch coupled to the second vertical polarization feed line 520.

[0058] In a vertical polarization network, when energy is transmitted from a radiating patch directly coupled to a vertical polarization feed line, through a pixelated feed line and a shared patch, to a radiating patch directly coupled to another vertical polarization feed line, the second pixelated feed line 420 and the third pixelated feed line 430 will significantly reduce the energy amplitude, thereby achieving decoupling between different radiating arrays and effectively improving the isolation of the two radiating arrays in vertical polarization.

[0059] Figure 4 A schematic diagram of the first horizontally polarized feed line 210 provided in this embodiment is shown.

[0060] In one embodiment, please refer to Figure 1 and Figure 4 The first horizontally polarized feed line 210 and the second horizontally polarized feed line 220 are respectively connected to different horizontally polarized feed ports 230. Both the first horizontally polarized feed line 210 and the second horizontally polarized feed line 220 include multiple horizontally polarized feed line segments 240. The horizontally polarized feed line segments 240 are used to connect two adjacent radiating patches. On the transmission path of the horizontally polarized signal, the line width of the horizontally polarized feed line segment 240 is narrower the farther away from the horizontally polarized feed port 230.

[0061] Understandably, the linewidth of the horizontally polarized feed segment 240 determines its characteristic impedance. A wider horizontally polarized feed segment 240 has lower impedance and transmits a larger current amplitude; a narrower horizontally polarized feed segment 240 has higher impedance and transmits a smaller current amplitude.

[0062] As the signal flows sequentially from the horizontally polarized feed port 230 through each horizontally polarized feed line segment 240, the linewidth gradually narrows, and the current amplitude distributed to each radiating patch also decreases accordingly, thereby gradually reducing the excitation amplitude of the radiating patch and effectively suppressing the pattern sidelobes.

[0063] Figure 5 A schematic diagram of the first vertical polarization feed 510 provided in this embodiment is shown.

[0064] In one embodiment, please refer to Figure 2 and Figure 5The first vertical polarization feed line 510 and the second vertical polarization feed line 520 are respectively connected to different vertical polarization feed ports 530. The first vertical polarization feed line 510 and the second vertical polarization feed line 520 both include multiple vertical polarization feed line segments 540. The vertical polarization feed line segments 540 are used to connect two adjacent radiating patches. On the transmission path of the vertical polarization signal, the line width of the vertical polarization feed line segment 540 is narrower the farther away from the vertical polarization feed port 530.

[0065] Understandably, the linewidth of the vertically polarized feed segment 540 determines its characteristic impedance. A wider vertically polarized feed segment 540 has lower impedance and transmits a larger current amplitude; a narrower vertically polarized feed segment 540 has higher impedance and transmits a smaller current amplitude.

[0066] As the signal flows sequentially from the vertical polarization feed port 530 through each vertical polarization feed segment 540, the linewidth gradually narrows, and the current amplitude distributed to each radiating patch also decreases accordingly, thereby gradually reducing the excitation amplitude of the radiating patch and effectively suppressing the pattern sidelobes.

[0067] Please see Figure 6 , Figure 6 A schematic diagram of the circuit board for the common aperture antenna provided in this embodiment is shown.

[0068] In one embodiment, the common aperture antenna includes a first circuit board 610 and a second circuit board 620. The first circuit board 610 and the second circuit board 620 are stacked together through a 3mm air gap. Each radiating patch and feed line can be disposed on the first circuit board 610. The second circuit board 620 serves as the antenna ground and forms a coupled resonant structure with the radiating patches and feed network on the first circuit board 610.

[0069] Furthermore, in order to better implement the common aperture antenna in any of the above embodiments, based on the common aperture antenna described above, this application embodiment also provides an electronic device, which includes the common aperture antenna as described above.

[0070] Specifically, the electronic device can be a radio frequency (RF) device. By connecting the signal processing module inside the RF device to a common-aperture antenna, it is possible to achieve efficient radiation and reception of dual-polarized signals.

[0071] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0072] The basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0073] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0074] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments of the invention, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0075] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A co-boresight antenna, characterized by, The common aperture antenna includes multiple radiating patches and a horizontally polarized feed line; The horizontally polarized feed line is provided with multiple coupling ports, which are used to couple with the corresponding radiating patch, and the horizontally polarized feed line is used to transmit horizontally polarized signals. The horizontal polarization feed line includes a first horizontal polarization feed line and a second horizontal polarization feed line. Among the plurality of radiation patches, at least one first common patch is included. The first horizontal polarization feed line and the second horizontal polarization feed line excite the same first common patch to generate orthogonal radiation polarization.

2. The co-boresight antenna of claim 1, wherein, The first common patch is a rectangular patch, and the two ends of one side of the first common patch are coupled to the first horizontal polarization feed line and the second horizontal polarization feed line, respectively. On the same first common patch, the polarization angle of the radiation generated based on the horizontal polarization signal provided by the first horizontal polarization feed line is 45°, and the polarization angle of the radiation generated based on the horizontal polarization signal provided by the second horizontal polarization feed line is -45°.

3. The co-boresight antenna of claim 1, wherein, The horizontal polarization feed line includes at least one first pixelated feed line, and the plurality of radiating patches include at least one second common patch. The two ends of the first pixelated feed line are respectively coupled to the first common patch and the second common patch. The first pixelated feed line is used to transmit horizontal polarization signals and make the horizontal polarization radiation phase of the first common patch equal to the horizontal polarization radiation phase of the second common patch.

4. The common-aperture antenna according to claim 3, characterized in that, The first pixelated feed line is also used to make the horizontal polarization excitation amplitude of the first common patch greater than the horizontal polarization excitation amplitude of the second common patch.

5. The common-aperture antenna according to claim 3, characterized in that, The common-aperture antenna includes a vertically polarized feed line; The vertical polarization feed line is provided with multiple coupling ports, which are used to couple with corresponding radiating patches. The vertical polarization feed line is used to transmit vertical polarization signals. The vertical polarization feed line includes a first vertical polarization feed line, a second vertical polarization feed line, a second pixelated feed line, and a third pixelated feed line. At least one radiating patch coupled to the first vertical polarization feed line is coupled to the first end of the second pixelated feed line, and the second end of the second pixelated feed line is coupled to one of the first common patch and the second common patch. The second pixelated feed line is used to transmit vertical polarization signals and makes the vertical polarization radiation phase of the first common patch and the vertical polarization radiation phase of the second common patch equal to the vertical polarization radiation phase of the radiating patch coupled to the first vertical polarization feed line. At least one radiating patch coupled to the second vertical polarization feed line is coupled to the first end of the third pixelated feed line, and the second end of the third pixelated feed line is coupled to one of the first common patch and the second common patch. The third pixelated feed line is used to transmit vertical polarization signals and makes the vertical polarization radiation phase of the first common patch and the vertical polarization radiation phase of the second common patch equal to the vertical polarization radiation phase of the radiating patch coupled to the second vertical polarization feed line.

6. The common-aperture antenna according to claim 5, characterized in that, The second pixelated feed line is also used to make the vertical polarization excitation amplitude of the first common patch and the vertical polarization excitation amplitude of the second common patch smaller than the vertical polarization excitation amplitude of the radiating patch coupled to the first vertical polarization feed line. The third pixelation feed line is also used to ensure that the vertical polarization excitation amplitude of the first common patch or the second common patch is less than the vertical polarization excitation amplitude of the radiating patch coupled to the second vertical polarization feed line.

7. The common-aperture antenna according to any one of claims 1 to 6, characterized in that, The first horizontally polarized feed line and the second horizontally polarized feed line are respectively connected to different horizontally polarized feed ports. Both the first horizontally polarized feed line and the second horizontally polarized feed line include multiple horizontally polarized feed line segments. The horizontally polarized feed line segments are used to connect two adjacent radiating patches. On the transmission path of the horizontally polarized signal, the line width of the horizontally polarized feed line segment is narrower the farther away from the horizontally polarized feed port.

8. The common-aperture antenna according to claim 5 or 6, characterized in that, The first vertical polarization feed line and the second vertical polarization feed line are respectively connected to different vertical polarization feed ports. Both the first vertical polarization feed line and the second vertical polarization feed line include multiple vertical polarization feed line segments. The vertical polarization feed line segments are used to connect two adjacent radiating patches. On the transmission path of the vertical polarization signal, the line width of the vertical polarization feed line segment that is farther away from the vertical polarization feed port is narrower.

9. The common-aperture antenna according to claim 3, characterized in that, The horizontal polarization feed line further includes at least one fourth pixelation feed line, and the plurality of radial patches include at least one horizontal polarization patch. The first end of the fourth pixelation feed line is coupled to the horizontal polarization patch, and at least one radial patch coupled to the first horizontal polarization feed line or the second horizontal polarization feed line is coupled to the second end of the fourth pixelation feed line.

10. An electronic device, characterized in that, The electronic device includes a common-aperture antenna as described in any one of claims 1 to 9.

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