A high-gain modular solar cell compound reflectarray antenna

Abstract

The application discloses a high-gain modular solar cell composite reflectarray antenna, which comprises a feed antenna, a composite reflectarray and an external signal receiving and retransmission device; the feed antenna is connected with the composite reflectarray; the composite reflectarray receives the external signal retransmitted by the feed antenna and reflects and transmits the external signal; the application has the advantages of high arraying efficiency and high reflecting efficiency; the application has the advantages of simple processing, light weight, low profile and low cost, and is convenient for modular integration and large-scale arraying.

Description

Technical Field

[0001] This invention relates to the field of antenna design, and more particularly to a high-gain modular solar cell composite reflector array antenna. Background Technology

[0002] In recent years, with the rapid development of satellite antennas in applications such as communication, radar, and imaging systems, the traditional satellite's energy system and payload system are two independent systems, occupying a large volume and weight, and unable to operate in a closed loop, thus restricting the ability to achieve large-area coverage and high-precision imaging. Large-aperture coplanar conformal antennas that combine solar panels with the antenna can solve the problems of large aperture and weight of solar sails and antenna arrays, and can also achieve self-closed-loop energy operation, becoming a future development trend.

[0003] Planar reflector array antennas, with their planar shape, low thickness, and light weight, are easily conformally integrated with solar cells, making them a good choice for next-generation solar cell composite antennas. However, planar reflector arrays utilize the reflective characteristics of antenna elements to achieve phase adjustment and beam focusing. On the one hand, when the reflector elements are integrated coplanarly with the solar cells, there is an aperture blocking effect where the antenna elements and the solar cells compete for area. How to select a suitable antenna element structure to minimize visible light blocking has become an urgent problem to be solved. On the other hand, the layout architecture of the antenna and solar cells will have a certain impact on the antenna efficiency. How to select a suitable layout architecture to maximize the antenna array efficiency and reflection efficiency is the key to high-efficiency solar array composite antennas. Summary of the Invention

[0004] The purpose of this invention is to provide a high-gain modular solar cell composite reflective array antenna, which has the advantages of high array efficiency and high reflection efficiency.

[0005] To achieve the above objectives, the present invention provides a high-gain modular solar cell composite reflector antenna, comprising: a feed antenna for receiving and forwarding external signals; a composite reflector array connected to the feed antenna for receiving external signals forwarded by the feed antenna and reflecting and transmitting the external signals; the composite reflector array comprising: a dipole reflector array layer connected to the feed antenna for receiving and reflecting external signals forwarded by the feed antenna; a solar cell layer disposed below and bonded to the dipole reflector array layer for converting solar energy into electrical energy and transmitting it to the dipole reflector array layer; and a metal grounding layer disposed below and bonded to the solar cell layer, wherein the metal grounding layer suppresses interference signals generated by the dipole reflector array layer and the solar cell layer.

[0006] Preferably, the vibrator reflector array layer includes: an antenna dielectric layer, the lower surface of which is bonded to the solar cell layer and connected to the feed antenna, for receiving external signals from the feed antenna and performing a first reflection transmission; and a metal vibrator array, disposed on the upper surface of the antenna dielectric layer facing the feed antenna, for receiving external signals after the first reflection transmission through the antenna dielectric layer, and for performing phase adjustment on the external signals and performing a second reflection transmission.

[0007] Preferably, the metal oscillator array includes: an array body; a plurality of oscillator units, each of which is disposed on the upper surface of the array body, and the plurality of oscillator units perform phase adjustment on external signals; the plurality of oscillator units are arranged on the upper surface of the array body at equal intervals.

[0008] Preferably, the solar cell layer includes: a battery dielectric layer, wherein a plurality of solar cells are disposed inside the battery dielectric layer to convert solar energy into electrical energy; a front electrode layer, which is attached to the upper surface of the battery dielectric layer and the lower surface of the antenna dielectric layer, respectively, serving as the front electrode of the solar cell layer; and a rear electrode layer, which is attached to the lower surface of the battery dielectric layer and the upper surface of the metal grounding layer, respectively, serving as the rear electrode of the solar cell layer; the front electrode layer and the rear electrode layer enable the transmission and flow of current generated in the battery dielectric layer to provide electrical energy for the operation of the antenna.

[0009] Preferably, the metal grounding layer includes: a metal grounding layer dielectric, which is bonded to the lower surface of the rear electrode layer and is used to support other components of the metal grounding layer; and a metal ground layer, which is bonded to the lower surface of the metal grounding layer dielectric and is used to suppress interference signals generated by the oscillator reflector array layer and the solar cell layer.

[0010] Preferably, a plurality of front electrode metal wires are disposed on the surface of the front electrode layer; and a plurality of rear electrode metal wires are disposed on the surface of the rear electrode layer.

[0011] Preferably, the front electrode metal wires are arranged parallel to each other at equal intervals on the surface of the front electrode layer; the rear electrode metal wires are arranged parallel to each other at equal intervals on the surface of the rear electrode layer; and the projections of the electrode metal wires and the rear electrode metal wires onto the battery dielectric layer are perpendicular to each other.

[0012] Preferably, the antenna dielectric layer and the metal grounding layer dielectric are made of glass material.

[0013] Preferably, several composite reflection arrays are arranged at equal intervals to form a combination of several composite reflection arrays corresponding to one feed antenna; the distance between two adjacent composite reflection arrays is d = 0.5λ0, where λ0 is the air wavelength.

[0014] Preferably, the antenna parameters are determined according to the following formula:

[0015]

[0016] θ i =tan -1 (r i / f)

[0017]

[0018] f = h0 + h1 + h2 + p

[0019] in, For the initial phase of the composite reflector array, r i x is the distance from the signal transmission point of the feed antenna to the center of the composite reflector array. i Let x be the x-coordinate of the feed antenna's transmission point, and y be the x-coordinate of the antenna's transmission point. i Let θ be the y-coordinate of the feed antenna's transmission point. i Let f be the angle by which the incident signal path of the feed antenna deviates from the principal axis of the composite reflector array, f be the focal length of the composite reflector array, λ be the wavelength of the incident wave in air, h be the height of the signal transmission point of the feed antenna, p be the distance from the phase center of the signal transmission point of the feed antenna to the bottom of the feed antenna, h be the thickness of the dipole reflector array surface layer, and h be the thickness of the solar cell layer. The feed antenna is set so that the phase center of its signal transmission point is located at the focal point of the composite reflector array.

[0020] In summary, compared with the prior art, the high-gain modular solar cell composite reflector array antenna provided by the present invention has the following beneficial effects:

[0021] First, the modular solar cell composite reflector antenna of the present invention innovatively adopts a glass-based patch vibrator reflector array and a stacked coplanar connection with the solar cells, placing the antenna vibrator strip in the gap of the rear electrode of the cell. The substrate material of the vibrator is a glass substrate material to reduce the impact of the antenna on the working performance of the solar cell. It has the characteristics of high gain, compact structure, high light utilization rate and high efficiency.

[0022] Secondly, the modular solar cell composite reflective array antenna of the present invention adopts a joint design of antenna and solar cell. The reflective backplate of the reflective array antenna is different from that of traditional reflective array antennas, serving as the rear electrode of the battery. The metal grounding layer isolates and reflects the electromagnetic and optical signals generated by the reflective layer and the battery layer, avoiding electromagnetic leakage and other effects. It features high antenna radiation efficiency, good isolation effect, and low sidelobes.

[0023] Third, the modular solar cell composite reflective array antenna of the present invention has the advantages of simple processing, light weight, low profile and low cost, and is easy to modularly integrate and large-scale array. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the high-gain modular solar cell composite reflector array antenna of the present invention.

[0025] Figure 2 This is a schematic diagram of the high-gain modular solar cell composite reflector array antenna of the present invention.

[0026] Figure 3 This is a schematic diagram of the oscillator reflector array surface layer module unit structure of the high-gain modular solar cell composite reflector array antenna of the present invention.

[0027] Figure 4 This is a schematic diagram illustrating the phase distribution principle of the high-gain modular solar cell composite reflector array antenna co-design of the present invention.

[0028] Figure 5 (a) Figure 5 (b) Figure 5 (c) are schematic diagrams of the composite reflective array, front electrode layer, and rear electrode layer of the present invention, respectively.

[0029] Figure 6 (a) Figure 6 (b) is a schematic diagram of the simulated radiation patterns of the E-plane and H-plane of the high-gain modular solar cell composite reflector antenna of the present invention.

[0030] Figure label:

[0031] 1-Composite reflector array, 2-Feed antenna, 11-Dipole reflector array layer, 12-Solar cell layer, 13-Metallic grounding layer, 111-Antenna dielectric layer, 112-Metallic dipole array, 121-Battery dielectric layer, 122-Front electrode layer, 123-Rear electrode layer, 131-Metallic grounding layer dielectric, 132-Metallic ground layer, 1121-Dipole element, 1221-Front electrode metal wire, 1231-Rear electrode metal wire. Detailed Implementation

[0032] The following will be combined with the appendix in the embodiments of the present invention. Figure 1 ~Attached Figure 6 The technical solutions, structural features, objectives and effects achieved in the embodiments of the present invention will be described in detail.

[0033] It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions. They are only used to facilitate and clarify the purpose of illustrating the embodiments of the present invention, and are not intended to limit the implementation conditions of the present invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationship, or adjustments to the size should still fall within the scope of the technical content disclosed in the present invention, provided that they do not affect the effects and objectives that the present invention can produce.

[0034] It should be noted that, in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only the expressly listed elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0035] This invention provides a high-gain modular solar cell composite reflector antenna, which has the advantages of low profile, high gain, and integrated power generation and radiation, and can be applied to satellite communication, radar signal acquisition, space imaging and other fields.

[0036] like Figure 1 As shown, the antenna includes:

[0037] Feed antenna 2 receives external signals and has the function of forwarding and transmitting external signals;

[0038] The external signal is a signal transmitted from equipment such as satellites and radar;

[0039] The forwarding and transmission refers to the following: when the feed antenna 2 receives an external signal, it can directly transmit the external signal to the composite reflection array 1 (described later) without any processing, or it can process the external signal, such as through encryption, before transmitting it to the composite reflection array 1. The processing of the signal is only explained here. For the sake of understanding, regardless of how the signal is processed, it will be referred to as the "external signal".

[0040] The composite reflector array 1 is connected to the feed antenna 2, receives external signals transmitted by the feed antenna 2, and reflects and transmits the external signals.

[0041] The aforementioned reflection transmission refers to the reflection transmission of external signals within the composite reflection array 1. The purpose of using reflection transmission is to make it suitable for external signal transmission under various spatial angles.

[0042] For example, when the antenna is mounted on a satellite, it receives external signals from other satellites through the feed antenna 2. The feed antenna 2 transmits the external signals to the composite reflector array 1, and the composite reflector array 1 transmits the external signals to the ground control system or satellites that need to receive external signals through reflection.

[0043] Specifically, the composite reflection array 1 includes:

[0044] The dipole reflector array layer 11 is connected to the feed antenna 2, and receives external signals from the feed antenna 2 and transmits them through reflection;

[0045] Regarding the connection method between the dipole reflector array layer 11 and the feed antenna 2, transmission line feeding connection and spatial feeding connection can be adopted; this embodiment adopts the spatial feeding connection method; because the spatial feeding form is simple, the cost is low, and it is easy to achieve lightweighting; at the same time, the spatial feeding loss is low, and instantaneous bandwidth and concentrated feeding can be achieved.

[0046] A solar cell layer 12 is disposed below the oscillator reflector array layer 11 and is attached to and connected to the oscillator reflector array layer 11 to convert solar energy into electrical energy and transmit it to the oscillator reflector array layer 11.

[0047] A metal grounding layer 13 is disposed below the solar cell layer 12 and is attached to the solar cell layer 12. The metal grounding layer 13 can suppress interference signals generated by the oscillator reflector array layer 11 and the solar cell layer 12, such as optical interference signals and electromagnetic interference signals, thereby reducing electromagnetic interference and signal leakage problems during antenna operation.

[0048] The above describes the basic structure of the antenna. In the preferred embodiment, by changing the specific structure of the dipole reflector array layer 11, the solar cell layer 12, and the metal ground layer 13, better reflection transmission and electromagnetic beam focusing effects can be achieved.

[0049] The following will describe specific embodiments of the oscillator reflector array layer 11, the solar cell layer 12, and the metal grounding layer 13.

[0050] like Figure 2 As shown, the oscillator reflector layer 11 functions to reflect and transmit external signals. The oscillator reflector layer 11 includes:

[0051] The antenna dielectric layer 111 has its lower surface bonded to the solar cell layer 12 and connected to the feed antenna 2. It receives external signals from the feed antenna 2 and performs first reflection transmission. In a preferred embodiment, the antenna dielectric layer 111 can be made of a glass substrate because a glass substrate can achieve a higher interconnect density (i.e., a tighter spacing), thereby reducing signal loss or error during transmission.

[0052] The metal oscillator array 112 is disposed on the upper surface of the antenna dielectric layer 111 facing the feed antenna 2, and is used to receive external signals after the first reflection transmission through the antenna dielectric layer 111, and to perform phase adjustment on the external signals and perform a second reflection transmission.

[0053] Phase adjustment here can process external signals, making them smoother in subsequent transmission. The second reflection transmission, as mentioned above, transmits the external signal to the ground control system or to the satellite that needs to receive the external signal.

[0054] Here, the antenna dielectric layer 111 receives the external signal from the feed antenna 2, performs a first reflection transmission of the external signal, and then transmits it to the metal vibrator array 112 disposed on the upper surface of the antenna dielectric layer 111. The metal vibrator array 112 performs a second reflection transmission, thereby realizing the antenna's reflection transmission function.

[0055] In a specific embodiment, such as Figure 3 As shown, the metal oscillator array 112 includes:

[0056] Formation body;

[0057] Several oscillator units 1121 (only one is shown in the figure) are disposed on the upper surface of the array body, and the several oscillator units 1121 realize the function of phase adjustment of external signals.

[0058] Different layouts and arrangements of the various vibrating elements 1121 can lead to different phase adjustment effects. In a preferred embodiment, the various vibrating elements 1121 are arranged at equal intervals on the surface of the array body, and the length of the vibrating elements 1121 varies continuously within a certain range; thereby enabling the external signal transmitted via the first reflection through the antenna dielectric layer 111 to achieve phase consistency after phase adjustment, thus achieving the beneficial effect of beam focusing, before proceeding to the second reflection transmission.

[0059] In a preferred embodiment, the metal oscillator array 112 further includes array units whose number and position correspond one by one with the oscillator units 1121. The array unit is a structure that specifically carries the oscillator units 1121, thereby allowing the oscillator units 1121 to be better arranged on the array body.

[0060] In this embodiment, the length variation range of the oscillator unit 1121 is determined based on the ratio of the length of the oscillator unit 1121 to the length of the array unit. It can vary within a selectable range of this ratio. The ratio of the length of the oscillator unit 1121 to the length of the array unit is 0.13 to 0.66. For example, if the size of the array unit is 15mm, which is 0.5 air wavelengths, the length of the oscillator unit can vary from 2mm to 10mm.

[0061] Regarding the specific structure of the solar cell layer 12, such as Figure 2 As shown, the solar cell layer 12 is bonded and connected to the antenna dielectric layer 111 and the metal ground layer 13 of the oscillator reflector array layer 11.

[0062] The solar cell layer 12 includes:

[0063] A battery dielectric layer 121 is provided inside which a plurality of solar cells are disposed to convert solar energy into electrical energy.

[0064] The front electrode layer 122 is attached to the upper surface of the battery dielectric layer 121 and the lower surface of the antenna dielectric layer 111, respectively, and serves as the front electrode of the solar cell layer 12.

[0065] The rear electrode layer 123 is attached to the lower surface of the battery dielectric layer 121 and the upper surface of the metal ground layer 13, respectively, and serves as the rear electrode of the solar cell layer 12.

[0066] The front electrode layer 122 and the rear electrode layer 123 enable the transmission and flow of current generated in the battery dielectric layer 121, providing electrical energy for the operation of the entire oscillator reflector array layer 11.

[0067] Regarding the specific construction of the metallic grounding layer 13, such as Figure 2 As shown, the metal grounding layer 13 includes:

[0068] The metal grounding layer dielectric 131 is bonded to the lower surface of the rear electrode layer 123 and is used to support the metal grounding layer 13.

[0069] The metal ground layer 132 is attached to the lower surface of the metal grounding layer medium 131 to suppress interference signals generated by the oscillator reflector array layer 11 and the solar cell layer 12, thereby reducing electromagnetic interference and signal leakage during antenna operation.

[0070] Furthermore, regarding the specific layout of the front electrode layer 122 and the rear electrode layer 123, such as Figure 3 As shown, a plurality of front electrode metal wires 1221 can be disposed on the upper surface of the front electrode layer 122; a plurality of rear electrode metal wires 1231 can be disposed on the lower surface of the rear electrode layer 123. This design of electrode metal wires is beneficial to enhancing the efficiency of solar cells in converting solar energy into electrical energy and the efficiency of transmitting it to other components.

[0071] In a preferred embodiment, the front electrode metal wires 1221 are arranged parallel to each other at equal intervals on the upper surface of the front electrode layer 122, and the rear electrode metal wires 1231 are arranged parallel to each other at equal intervals on the lower surface of the rear electrode layer 123. Furthermore, the projections of the front electrode metal wires 1221 and the rear electrode metal wires 1231 onto the battery dielectric layer 121 are perpendicular to each other, so as to achieve optimal energy conversion efficiency and transmission efficiency.

[0072] In addition, in a preferred embodiment, several composite reflector arrays 1 can be combined to form a feed antenna 2 corresponding to a combination of several composite reflector arrays 1, thereby enhancing signal transmission efficiency; at this time, the composite reflector array 1 should be designed as a rectangular or square structure, which is beneficial for space utilization and arrangement.

[0073] The above forms the basic structure of a high-gain modular solar cell composite reflector array antenna of the present invention. The following describes the assembly parameters of this antenna to achieve the high-performance operation of the present invention.

[0074] Among them, a number of oscillator units 1121 are arranged at equal intervals on the surface of the metal oscillator array 112 to ensure excellent phase adjustment.

[0075] like Figure 4 As shown, the length of the composite reflector array 1 is D, the focal length of the composite reflector array 1 is f, and the feed antenna 2 is set so that the phase center of its signal transmission point is located at the focal position of the composite reflector array 1. These two parameters are fixed design parameters. If multiple composite reflector arrays 1 are combined and set up at this time, the structure composed of several composite reflector arrays 1 should be regarded as a whole. That is, in subsequent calculations and assembly, the combined structure should be regarded as a single composite reflector array 1 for calculation and assembly.

[0076] The parameters for the remaining components can be obtained from the following formula:

[0077]

[0078] θ i =tan -1 (r i / f)

[0079]

[0080] f = h0 + h1 + h2 + p

[0081] in, θ represents the initial phase of the composite reflection array. i The angle r represents the deviation of the incident signal trajectory of feed antenna 2 from the principal axis of composite reflector array 1. i x is the distance from the signal transmission point of feed antenna 2 to the center of the composite reflector array 1; i Let x be the x-coordinate of the transmission point of feed antenna 2 along the feed axis; y i λ is the y-coordinate of the transmission point of the feed antenna 2; f is the focal length of the composite reflector array 1; λ0 is the wavelength of the incident wave in the air; h0 is the height of the signal transmission point of the feed antenna 2; p is the distance from the phase center of the signal transmission point of the feed antenna 2 to the bottom of the feed antenna 2; h1 is the thickness of the vibrator reflector array layer 11; h2 is the thickness of the solar cell layer 12.

[0082] The purpose of the above formula combination is to derive the remaining parameters from some data, thereby realizing the construction of the entire antenna.

[0083] The following is a specific embodiment:

[0084] The antenna dielectric layer 111 and the metal grounding layer dielectric 131 are both made of glass. Because of the high light transmittance of glass, the shading of the solar cell layer 12 by the oscillator reflector array layer 11 and the solar cell layer 12 when they are coplanar can be reduced.

[0085] In this example Figure 5 (a) Figure 5 (b) Figure 5 (c) shows the composite reflective array 1, the front electrode layer 122, and the rear electrode layer 123, respectively;

[0086] Among them, the composite reflector array 1 has a size of 530mm×530mm×4mm and a focal length of 250mm.

[0087] Several oscillator units 1121 are arranged at equal intervals of 15mm. The width of the oscillator unit 1121 is 0.6mm, the thickness is 0.036mm, and the length is continuously varied between 2mm and 10mm to achieve phase adjustment. 32×32 oscillator units 1121 are arranged on the surface of the metal oscillator array 112. The width of the front electrode metal wire 1221 and the rear electrode metal wire 1231 is set to 0.6mm.

[0088] The antenna in this embodiment is designed for the Ku band (Ku band frequencies typically range from 10.7 to 12.75 GHz for downlink and from 12.75 to 18.1 GHz for uplink);

[0089] like Figure 6 As shown, Figure 6 (a) Figure 6 (b) The radiation patterns of the antenna in this example are shown in the E-plane and H-plane, respectively (the E-plane is the horizontal plane where the electric field direction is maximum and the wave propagation direction is located; the H-plane is the horizontal plane where the magnetic field direction is maximum and the wave propagation direction is located, i.e., the plane perpendicular to the E-plane). The antenna gain is 28dB, the E-plane beamwidth is 5 degrees, and the sidelobe level is less than -18.1dB. The H-plane beamwidth is 4.9 degrees, and the sidelobe level (clutter other than the main signal) is less than -20.6dB.

[0090] Based on the experimental data, the beneficial effects of the high gain and low sidelobe of the antenna of this invention are demonstrated, providing a solution for the modular and efficient integration of airborne and spaceborne conformal solar antennas.

[0091] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A high-gain modular solar cell composite reflector array antenna, characterized in that, include: Feed antenna (2) receives and transmits external signals; The composite reflector array (1) is connected to the feed antenna (2) to receive external signals transmitted from the feed antenna (2) and to reflect and transmit the external signals. The composite reflection array (1) includes: The oscillator reflector array layer (11) is connected to the feed antenna (2) to receive external signals transmitted from the feed antenna (2) and perform reflection transmission; A solar cell layer (12) is disposed below the oscillator reflector array layer (11) and is attached to the oscillator reflector array layer (11) to convert solar energy into electrical energy and transmit it to the oscillator reflector array layer (11). A metal grounding layer (13) is disposed below the solar cell layer (12) and is attached to the solar cell layer (12). The metal grounding layer (13) suppresses the interference signals generated by the oscillator reflector array layer (11) and the solar cell layer (12). The dipole reflector array layer (11) includes: an antenna dielectric layer (111) and a metal dipole array (112) disposed on the upper surface of the antenna dielectric layer (111) facing the feed antenna (2). The solar cell layer (12) includes: A battery dielectric layer (121); a front electrode layer (122) is attached to the upper surface of the battery dielectric layer (121) and the lower surface of the antenna dielectric layer (111) respectively, serving as the front electrode of the solar cell layer (12); a rear electrode layer (123) is attached to the lower surface of the battery dielectric layer (121) and the upper surface of the metal ground layer (13) respectively, serving as the rear electrode of the solar cell layer (12); The surface of the front electrode layer (122) is provided with a plurality of front electrode metal wires (1221); the surface of the rear electrode layer (123) is provided with a plurality of rear electrode metal wires (1231). The front electrode metal wires (1221) are arranged parallel to each other at equal intervals on the surface of the front electrode layer (122); the rear electrode metal wires (1231) are arranged parallel to each other at equal intervals on the surface of the rear electrode layer (123); the projections of the front electrode metal wires (1221) and the rear electrode metal wires (1231) on the battery dielectric layer (121) are perpendicular to each other; The metal grounding layer (13) includes: The metal grounding layer dielectric (131) is bonded to the lower surface of the rear electrode layer (123) and is used to support other components of the metal grounding layer (13); The metal ground layer (132) is attached to the lower surface of the metal grounding layer medium (131) to suppress the interference signals generated by the oscillator reflector array layer (11) and the solar cell layer (12).

2. The high-gain modular solar cell composite reflector array antenna according to claim 1, characterized in that, The antenna dielectric layer (111) has its lower surface bonded to the solar cell layer (12) and connected to the feed antenna (2) to receive external signals from the feed antenna (2) and perform first reflection transmission. The metal oscillator array (112) is used to receive external signals after a first reflection transmission via the antenna dielectric layer (111), and to perform phase adjustment on the external signals and perform a second reflection transmission.

3. The high-gain modular solar cell composite reflector array antenna according to claim 2, characterized in that, The metal oscillator array (112) includes: Formation body; A plurality of oscillator units (1121) are provided on the upper surface of the array body, and the plurality of oscillator units (1121) perform phase adjustment on external signals; The plurality of oscillator units (1121) are arranged at equal intervals on the upper surface of the array body.

4. A high-gain modular solar cell composite reflector array antenna according to claim 3, characterized in that, The battery dielectric layer (121) is provided with a number of solar cells, which convert solar energy into electrical energy; the front electrode layer (122) and the rear electrode layer (123) realize the transmission flow of current generated in the battery dielectric layer (121) to provide power for the operation of the antenna.

5. A high-gain modular solar cell composite reflector array antenna according to claim 1, characterized in that, The antenna dielectric layer (111) and the metal grounding dielectric layer (131) are made of glass material.

6. A high-gain modular solar cell composite reflector array antenna according to claim 1, characterized in that, Several composite reflection arrays (1) are arranged at equal intervals to form a feed antenna (2) corresponding to a combination of several composite reflection arrays (1); The spacing between two adjacent composite reflection arrays (1) d = 0.5 λ 0, λ 0 represents the wavelength of air.

7. A high-gain modular solar cell composite reflector array antenna according to any one of claims 1 to 6, characterized in that, The parameters of the antenna are determined according to the following formula: in, This represents the initial phase of the composite reflector array. r i The distance from the signal transmission point of the feed antenna (2) to the center of the composite reflector array (1) is given by the following: The transmission point of the feed antenna (2) along x Axis coordinates The transmission point of the feed antenna (2) along y Axis coordinates θ i The angle by which the incident signal path of the feed antenna (2) deviates from the principal axis of the composite reflector array (1) f The focal length of the composite reflection array (1) is... λ 0 represents the wavelength of the incident wave in air. h 0 represents the height of the signal transmission point of the feed antenna (2). p The distance between the phase center of the signal transmission point of the feed antenna (2) and the bottom of the feed antenna (2) is denoted as . h 1 represents the thickness of the oscillator reflector array layer (11). h 2 represents the thickness of the solar cell layer (12); the feed antenna (2) is set so that the phase center of its signal transmission point is located at the focal position of the composite reflector array (1).

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