CN114069252A - Planar lens antenna with self-holding capability - Google Patents
Planar lens antenna with self-holding capability Download PDFInfo
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- CN114069252A CN114069252A CN202111425217.3A CN202111425217A CN114069252A CN 114069252 A CN114069252 A CN 114069252A CN 202111425217 A CN202111425217 A CN 202111425217A CN 114069252 A CN114069252 A CN 114069252A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/06—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
- H01Q3/36—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means with variable phase-shifters
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Abstract
The invention discloses a planar lens antenna with self-sustaining capability, which comprises a planar lens structure and a space feed structure; the planar lens structure comprises a thin film solar charging structure, a top layer wave-transmitting structure, a bottom layer wave-transmitting structure and a phase-shifting structure, wherein the top layer wave-transmitting structure, the bottom layer wave-transmitting structure and the phase-shifting structure are in transition connection through coupling holes or microstrip lines, and the thin film solar charging structure and the top layer wave-transmitting structure are integrated together; the space feed structure is arranged below the bottom wave-transparent structure and provides feed for the planar lens structure. The invention integrates the film solar charging structure and the plane lens structure together, has low production cost, can be manufactured in a large scale by a display panel production line process, and has the characteristics of low power consumption, low profile, self-support, flexible design and use, capability of electronic beam scanning and the like.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to a planar lens antenna with self-holding capacity.
Background
In the fields of internet of things, buoys, field environment monitoring and the like, unattended antenna equipment capable of communicating with satellites is often needed, and for a small-data-volume use environment, such as regular uploading of the current temperature, humidity and other small data volumes of a detected object, a general method is to use a wide-beam low-gain fixed beam antenna and use a thin-film solar panel or a battery for power supply; for a large data volume usage environment, such as uploading of monitoring videos, antennas such as a mechanically rotating parabolic antenna or a horn array, and power equipment such as a generator are generally used for power supply. The former has a small communication bandwidth and cannot perform communication with a large data volume, and the latter can perform transmission of large data, but the further development of the former is always restricted by huge security equipment and power consumption.
The prior art has the problems of small communication capacity, high use cost, requirements on use environment, high power consumption, incapability of electronic beam scanning and the like, and an electronic beam scanning antenna which has the advantages of flexible working mode, low profile, low cost and power consumption and easiness in integration becomes necessary.
Disclosure of Invention
Therefore, the present invention provides a planar lens antenna with self-sustaining capability to solve at least one problem in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme:
according to the invention, the planar lens antenna with self-holding capability is provided, which comprises a planar lens structure and a space feed structure;
the planar lens structure comprises a thin film solar charging structure, a top layer wave-transmitting structure, a bottom layer wave-transmitting structure and a phase-shifting structure, wherein the top layer wave-transmitting structure, the bottom layer wave-transmitting structure and the phase-shifting structure are in transition connection through coupling holes or microstrip lines, and the thin film solar charging structure and the top layer wave-transmitting structure are integrated together;
the space feed structure is arranged below the bottom wave-transparent structure and provides feed for the planar lens structure.
Furthermore, the top layer wave-transparent structure comprises a top layer and a plurality of supporting substrates, the top layer is arranged on the upper surface of the supporting substrates, and the thin-film solar charging structures are arranged on the top layer and/or in the space between the top layers.
Furthermore, the thin film solar charging structure comprises a thin film solar cell which is of a multilayer structure and comprises an electrode layer, an absorption layer, a buffer layer, a window layer, a top electrode layer and an antireflection film layer which are sequentially arranged from bottom to top, wherein the electrode layer is arranged on the surface of the top substrate.
Further, the electrode layer is a metal patch or a metal film, and the anti-reflection film layer is made of magnesium oxide.
Further, the top electrode layer is prepared by adopting an evaporation Ni/Al composite material.
Further, the bottom layer wave-transparent structure comprises a bottom layer and a bottom substrate, wherein the bottom layer is arranged on the lower surface of the bottom substrate, and the bottom layer is arranged in a patch mode.
Further, the phase shifting structure comprises a liquid crystal phase shifter, and the liquid crystal phase shifter is based on a branch variable capacitor structure and is in a single-stage branch form, a multi-stage branch form or a single multi-stage composite structure form.
Further, the phase shift structure further comprises a liquid crystal cell, and the liquid crystal cell is arranged between the support substrate and the bottom substrate.
Further, the coupling hole includes a first coupling slit and a second coupling slit, the first coupling slit and the second coupling slit are both disposed at a connection portion of the support substrate and the liquid crystal cell, and the first coupling slit and the second coupling slit are alternately disposed at intervals along a length direction of the support substrate.
Furthermore, the liquid crystal phase shifter comprises an opening pattern and a metal pattern of a variable capacitor, wherein the opening pattern and the metal pattern of the variable capacitor are arranged in the liquid crystal box, are respectively positioned on the inner surface of the upper substrate and the inner surface of the lower substrate of the liquid crystal box and are in one-to-one correspondence.
The invention has the following advantages:
the planar lens antenna with self-sustaining capability integrates the film solar charging structure and the planar lens structure, has low production cost, can be manufactured in a large scale by a display panel production line process, and has the characteristics of low power consumption, low profile, self-sustaining, flexible design and use, capability of electronic beam scanning and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
Fig. 1 is a schematic structural diagram illustrating a planar lens antenna with self-supporting capability according to an exemplary embodiment;
FIG. 2 is a schematic diagram illustrating a planar lens structure according to an exemplary embodiment;
FIG. 3 is a schematic diagram illustrating a cell structure of a planar lens according to an exemplary embodiment;
FIG. 4 is a schematic diagram of a liquid crystal phase shifter according to an exemplary embodiment;
FIG. 5 is a schematic diagram of a liquid crystal phase shifter according to another exemplary embodiment;
FIG. 6 is a schematic diagram of a liquid crystal phase shifter according to another exemplary embodiment;
FIG. 7 is a schematic diagram of a liquid crystal phase shifter according to another exemplary embodiment;
FIG. 8 is a schematic diagram of a liquid crystal phase shifter according to another exemplary embodiment;
FIG. 9 is a schematic diagram illustrating the structure of a stack according to an exemplary embodiment;
fig. 10 is a schematic diagram illustrating a structure of an orthogonal dual-polarized planar lens structure according to an exemplary embodiment;
FIG. 11 is a representative distribution diagram illustrating a thin film solar cell structure in accordance with one exemplary embodiment;
FIG. 12 is a schematic view of a stack structure of a thin film solar cell structure according to an exemplary embodiment;
fig. 13 is a block diagram illustrating a self-contained antenna system for a planar lens antenna in accordance with an exemplary embodiment.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to an embodiment of the present invention, there is provided a planar lens antenna with self-sustaining capability, as shown in fig. 1 to 13, including a planar lens structure 12 and a spatial feed structure 11;
the planar lens structure 12 comprises a thin-film solar charging structure, a top-layer wave-transmitting structure, a bottom-layer wave-transmitting structure and a phase-shifting structure, wherein the top-layer wave-transmitting structure, the bottom-layer wave-transmitting structure and the phase-shifting structure are in transition connection through coupling holes or microstrip lines, and the thin-film solar charging structure and the top-layer wave-transmitting structure are integrated together;
the spatial feed structure 11 is disposed below the bottom wave-transparent structure, and provides power to the planar lens structure 12. The microstrip line may be a product in the prior art, and details thereof are not described here.
The quasi-plane wave emitted from the spatial feed structure 11 passes through the planar lens structure 12 and becomes the required plane wave with specific beam pointing.
The top wave-transparent structure is a top transmitting or receiving structure, and is a radiation structure for transmitting out the phase-shifted electromagnetic wave signals according to the use requirement or a structure for receiving the signals in the space into the liquid crystal phase shifter.
The bottom wave-transparent structure is a signal receiving or transmitting end close to the fixed beam antenna end or the feed end and is used for receiving signals of the fixed beam antenna end or the feed end into the liquid crystal phase shifter or transmitting signals in the liquid crystal phase shifter to the fixed beam antenna end or the feed end.
The top layer wave-transparent structure comprises a top layer 21 and a supporting substrate 22, wherein the top layer 21 is arranged on the upper surface of the supporting substrate 22.
The bottom layer wave-transparent structure comprises a bottom layer 27 and a bottom layer substrate 26, wherein the bottom layer 27 is arranged on the lower surface of the bottom layer substrate 26, and the bottom layer 27 is arranged in a patch mode. The number of the top layers 21 is multiple, and the thin film solar charging structures 29 are disposed on the top layers 21 and/or in the spaces between the top layers 21, wherein the top layers 21 are in the form of patches, and the thin film solar charging structures 29 are disposed on the surfaces of the patches or the surfaces of the support substrate 22 between the areas of the patches.
The phase shifting structure comprises a liquid crystal phase shifter 24, and the liquid crystal phase shifter 24 is based on a branch-node variable capacitance structure and is in the form of a single-stage branch node, a multi-stage branch node or a single multi-stage composite structure. The branch knot can be a linear branch knot, a curved branch knot, a broken line branch knot, or any shape branch knot with fractal characteristics such as a deer horn shape, a snowflake shape, a diamond shape, a ring shape, a grid shape and the like.
The phase shifting structure further includes a liquid crystal cell 28, the liquid crystal cell 28 being disposed between the support substrate 22 and the base substrate 26.
The coupling holes include a first coupling slit 23 and a second coupling slit 25, the first coupling slit 23 and the second coupling slit 25 are both disposed at a connection point of the support substrate 22 and the liquid crystal cell 28, and the first coupling slit 23 and the second coupling slit 25 are alternately disposed at intervals along a length direction of the support substrate 22. In fig. 2, the number of the first coupling slits 23 is four, the number of the second coupling slits 25 is four, and the first coupling slits 23 and the second coupling slits 25 may be the same or different.
The supporting substrate 22 and the bottom substrate 26 may be made of glass, PCB (Printed Circuit Board), plastic, or ceramic.
The liquid crystal phase shifter includes an opening pattern 41 and a metal pattern 42 of a variable capacitor, and both the opening pattern 41 and the metal pattern 42 of the variable capacitor are disposed inside the liquid crystal cell 28, and are respectively located on an inner surface of an upper substrate and an inner surface of a lower substrate of the liquid crystal cell 28, and are in one-to-one correspondence. The opening pattern 41 is located on the metal floor layer, and the metal pattern 42 of the variable capacitor is located on the routing layer corresponding to the metal floor layer.
The number of the planar lens structures is one or more, and when the number of the planar lens structures is more than one, the planar lens structures are in a laminated state. As shown in fig. 9, the planar lens antenna includes a first spatial feeding structure 50, a first planar lens structure 51, a second planar lens structure 52 and a third planar lens structure 53, wherein the first planar lens structure 51, the second planar lens structure 52 and the third planar lens structure 53 are distributed in a stacked manner, and the first planar lens structure 51, the second planar lens structure 52 and the third planar lens structure 53 may be the same or different, and through this stacked structure, the phase shift amount of the liquid crystal phase shifter of each layer may be reduced, and taking this schematic diagram as an example, the planar lens structure of each layer only needs to ensure that the phase shift range is greater than 120 degrees, so that the entire stacked layer may meet the phase shift requirement of 360 degrees.
The top layer wave-transmitting structure is in a patch form, a slit form or an array form, and the bottom layer wave-transmitting structure is in a patch form, a slit form or an array form. The top wave-transparent structure and the bottom wave-transparent structure can also be any other structural forms which can well transmit electromagnetic signals. The film can be single-layer, multi-layer or multi-level planar extension. The polarization mode should be consistent with the polarization mode of the feed source.
The polarization mode of the top wave-transparent structure comprises orthogonal polarization, linear polarization and circular polarization.
The planar lens structure 12 is composed of a plurality of planar lens units, each planar lens unit comprises a top radiation patch 31, a top glass substrate 32, a third coupling gap 33, a variable capacitance liquid crystal phase shifter 34, a fourth coupling gap 35, a bottom glass substrate 36, a bottom radiation patch 37 and a liquid crystal layer 38, and the planar lens structure 12 is formed by periodically arranging a plurality of planar lens units. The third coupling slot 33 and the fourth coupling slot 35 may be the same or different.
The crossed dual-polarized planar lens structure comprises a first top substrate 61, a first bottom substrate 62, a variable capacitance phase shifter structure 63, a first bottom radiation patch 64, a first vertically polarized coupling hole 65, a first horizontally polarized coupling hole 66, a second vertically polarized coupling hole 67, a first top radiation patch 68 and a second horizontally polarized coupling hole 69, wherein the first top radiation patch 68 is arranged on the upper surface of the first top substrate 61, the first bottom radiation patch 64 is arranged on the lower surface of the first bottom substrate 62, and the variable capacitance phase shifter structure 63 is arranged between the first top substrate 61 and the first bottom substrate 62.
The first vertically polarized coupling hole 65 and the first horizontally polarized coupling hole 66, and the second vertically polarized coupling hole 67 and the second horizontally polarized coupling hole 69 are disposed between the first top substrate 61 and the variable capacitance phase shifter structure 63, and specifically, on the floor layer of the variable capacitance phase shifter structure 63. The number of the variable capacitance phase shifter structures 63 is two, and the two variable capacitance phase shifter structures are arranged inside the liquid crystal box.
When the antenna is used as a transmitting antenna, vertically polarized electromagnetic waves reach the variable capacitance phase shifter structure 63 in the liquid crystal box from the first bottom-layer radiation patch 64 through the first vertically polarized coupling hole 65, are fed to the first top-layer radiation patch 68 through the second vertically polarized coupling hole 67 after being phase-shifted, and are radiated out; the horizontally polarized electromagnetic wave reaches the liquid crystal box from the first bottom layer radiation patch 64 through the first horizontally polarized coupling hole 66, is fed to the first top layer radiation patch 68 through the second horizontally polarized coupling hole 69 after being phase-shifted by the phase shifter, and is radiated out of the horizontally polarized wave. The two electromagnetic waves with different polarization directions can be beams with the same direction or beams with different directions, and the electromagnetic waves can also be used as receiving antennas. In addition, this structure can also be used as a transceiver. In addition, the first top radiating patch 68 may be cut or a 3dB bridge structure may be added between the phase shifter and the first top radiating patch 68 to make the orthogonal dual-polarized planar lens structure have a variable linear polarization function.
The thin film solar charging structure adopts thin film solar cells for charging, the thin film solar charging structure comprises a first thin film solar cell structure 71, a second thin film solar cell structure 72 and electrode wiring 73, the first thin film solar cell structure 71 is distributed on the surface mount structure 70, the second thin film solar cell structure 72 is distributed around the surface mount structure, and the first thin film solar cell structure 71 and the second thin film solar cell structure 72 are electrically connected through the electrode wiring 73.
The thin film solar cell is of a multilayer structure and comprises an electrode layer 81, an absorption layer 82, a buffer layer 83, a window layer 84, a top electrode layer 85 and an antireflection film layer 86 which are sequentially arranged from bottom to top, wherein the electrode layer 81 is arranged on the surface of the top substrate 80. The top substrate 80 is equivalent to the aforementioned top layer 21 or the supporting substrate 22, and can be selected according to the surface to which the top substrate 80 is attached, and when the first thin film solar cell structure is adopted, the top substrate 80 corresponds to the top layer 21, and when the second thin film solar cell structure is adopted, the top substrate 80 corresponds to the supporting substrate 22.
The electrode layer 81 is a metal patch or a metal film, and the anti-reflection film layer 86 is made of magnesium oxide. The top electrode layer 85 is prepared by adopting an evaporated Ni/Al composite material
Taking a copper indium gallium selenide thin-film solar cell as an example, the first layer attached to the outer side of the top substrate 80 is an electrode layer 81, the electrode layer 81 is served by a metal patch in a region with the patch, and a metal back electrode can be independently deposited on the metal patch, the layer is usually a sputtered metal film, the absorption layer 82 is an absorption layer prepared by evaporation, sputtering and non-vacuum methods, the buffer layer 83 is a buffer layer of a CdS film deposited by adopting chemical water bath, the window layer 84 is a window layer prepared by sputtering AL-ZnO/i-ZnO, the top electrode layer 85 is a top electrode layer prepared by evaporating Ni/Al, and in addition, an antireflection film layer 86 prepared by MgF2 is arranged outside the top electrode layer 85. The thickness of the whole thin-film solar structure is about several microns, and the thin-film solar cell is connected into a power supply system in the antenna through metal wires, so that the antenna has a self-sustaining function.
The structural block diagram of the whole self-contained antenna system is shown in fig. 13, the self-contained antenna system comprises an integrated thin-film solar cell planar lens structure 90, an array feed structure 91, a power supply line 92 connecting the thin-film solar cell and a battery power supply system, and a control bus 93 connecting the integrated thin-film solar cell planar lens structure 90 and a beam control system, and further comprises a radio frequency transceiver module and a data acquisition system, wherein the data acquisition system is interactive with the radio frequency transceiver module, the array feed structure 91 is interactive with the radio frequency transceiver module, the beam control system is interactive with the radio frequency transceiver module, and the battery power supply system is interactive with the radio frequency transceiver module.
The space feed structure 11 flexibly adopts different feed forms according to different requirements, such as a horn array antenna, a microstrip array antenna and the like, so that the cost of the whole planar lens antenna is greatly reduced, the design and the use of the antenna are more flexible, the use environment is greatly expanded, the large-scale popularization and use are facilitated, and the space feed structure has the characteristics of low production cost, low profile, flexible design and use, capability of carrying out electronic beam scanning and the like.
For the single-line polarized planar lens antenna, it is only required to ensure that the polarization mode of the top wave-transparent structure of the planar lens structure is consistent with the required polarization mode, and the polarization mode of the spatial feed structure is consistent with the polarization mode of the bottom wave-transparent structure, which can be the same as or different from the polarization mode of the top wave-transparent structure, so as to achieve the purpose of good feeding.
For a dual-linear polarization lens antenna, only two linear polarization modes of the top wave-transparent structure are required to be consistent with a required polarization mode. The double linear polarization of the space feed structure is consistent with the double linear polarization of the bottom wave-transparent structure, can be the same as or different from the polarization mode of the top wave-transparent structure, and the purpose of good feed can be achieved. The dual polarizations may be the same or different.
For a single circularly polarized antenna, it is only required to ensure that the polarization mode of the top-layer wave-transparent structure is consistent with the required polarization mode, and the polarization mode of the spatial feed structure is consistent with the polarization mode of the bottom-layer wave-transparent structure, which may be a linear polarization structure or a circularly polarized structure. The circular polarization mode of the top-layer wave-transmitting structure can be a corner cut circular polarization patch with circular polarization characteristics, a circular polarization patch with a 90-degree 3dB coupler structure, or a circular polarization patch in other forms. The polarization form of the bottom wave-transparent structure depends on the specific feeding mode.
For a dual circularly polarized antenna, the spatial feed structure is dual-linearly polarized, and the polarization form of the bottom wave-transparent structure is the same as that of the spatial feed structure. In the wave-transparent structure, a 3dB bridge structure is added between the phase shifter structure and the top wave-transparent structure, so that each phase shifter can independently control one path of circularly polarized electromagnetic waves, and the function of double-circularly polarized beam scanning is realized.
For the single-wire polarization tracking antenna, the space feed structure can be single-wire polarized, when the space feed structure is single-wire polarized, the polarization form of the bottom wave-transparent structure is consistent with that of the space feed structure, the space feed structure is also single-wire polarized, the top wave-transparent structure is double-circular polarized, the double-circular polarized is mainly realized by adding a 3dB bridge structure at the phase shifter end and the top radiation end, and the phase shifter end is connected with the bottom wave-transparent structure through a one-to-two power divider.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. A planar lens antenna with self-sustaining capability, comprising a planar lens structure (12) and a spatial feed structure (11);
the planar lens structure (12) comprises a thin-film solar charging structure, a top wave-transmitting structure, a bottom wave-transmitting structure and a phase-shifting structure, wherein the top wave-transmitting structure, the bottom wave-transmitting structure and the phase-shifting structure are in transition connection through coupling holes or microstrip lines, and the thin-film solar charging structure and the top wave-transmitting structure are integrated together;
the space feed structure (11) is arranged below the bottom wave-transparent structure and provides power feed for the planar lens structure (12).
2. The planar lens antenna with self-sustaining capability according to claim 1, wherein the wave-transparent top layer structure comprises a top layer (21) and a supporting substrate (22), the top layer (21) is disposed on the upper surface of the supporting substrate (22), the number of the top layers (21) is plural, and the thin-film solar charging structure is disposed on the top layer (21) and/or in the space between the top layers (21).
3. The planar lens antenna with self-sustaining capability according to claim 1, wherein the thin-film solar charging structure comprises a thin-film solar cell, the thin-film solar cell is a multilayer structure and comprises an electrode layer (81), an absorption layer (82), a buffer layer (83), a window layer (84), a top electrode layer (85) and an antireflection film layer (86) which are sequentially arranged from bottom to top, and the electrode layer (81) is arranged on the surface of the top substrate (80).
4. The planar lens antenna with self-sustaining capability according to claim 3, wherein the electrode layer (81) is a metal patch or a metal film, and the anti-reflection film layer (86) is made of magnesium oxide.
5. The planar lens antenna with self-sustaining capability as claimed in claim 3, wherein said top electrode layer (85) is made of an evaporated Ni/Al composite material.
6. The planar lens antenna with self-sustaining capability according to claim 2, wherein the bottom wave-transparent structure comprises a bottom layer (27) and a bottom substrate (26), the bottom layer (27) is disposed on a lower surface of the bottom substrate (26), and the bottom layer (27) is disposed in a patch form.
7. The planar lens antenna with self-sustaining capabilities according to claim 6, wherein the phase shifting structure comprises a liquid crystal phase shifter (24), and the liquid crystal phase shifter (24) is based on a branched variable capacitance structure in the form of a single-stage branched structure, a multi-stage branched structure or a single multi-stage composite structure.
8. The planar lens antenna with self-sustaining capabilities according to claim 7, wherein the phase shifting structure further comprises a liquid crystal cell (28), the liquid crystal cell (28) being disposed between the support substrate (22) and the base substrate (26).
9. The planar lens antenna with self-sustaining capability according to claim 8, wherein the coupling holes comprise a first coupling slit (23) and a second coupling slit (25), the first coupling slit (23) and the second coupling slit (25) are disposed at the connection point of the support substrate (22) and the liquid crystal cell (28), and the first coupling slit (23) and the second coupling slit (25) are alternately disposed along the length direction of the support substrate (22).
10. The planar lens antenna with self-sustaining capability according to claim 8, wherein the liquid crystal phase shifter comprises an opening pattern (41) and a metal pattern (42) of a variable capacitor, and the opening pattern (41) and the metal pattern (42) of the variable capacitor are both disposed inside the liquid crystal cell (28) and respectively located on the inner surface of the upper substrate and the inner surface of the lower substrate of the liquid crystal cell (28) in a one-to-one correspondence.
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| CN108461929A (en) * | 2018-03-28 | 2018-08-28 | 珠海纳睿达科技有限公司 | Dual-polarized antenna array and dual polarization phased array antenna |
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| CN110797629A (en) * | 2019-11-15 | 2020-02-14 | 中国电子科技集团公司第十八研究所 | Array solar cell slice antenna based on coplanar waveguide structure |
| CN111293425A (en) * | 2020-03-24 | 2020-06-16 | 北京华镁钛科技有限公司 | Liquid crystal active phased array antenna |
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