CN112993590A - Spherical lens antenna structure - Google Patents
Spherical lens antenna structure Download PDFInfo
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- CN112993590A CN112993590A CN202110430126.2A CN202110430126A CN112993590A CN 112993590 A CN112993590 A CN 112993590A CN 202110430126 A CN202110430126 A CN 202110430126A CN 112993590 A CN112993590 A CN 112993590A
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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
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
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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
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
Abstract
The invention relates to the field of communication equipment, in particular to a spherical lens antenna structure, which comprises a spherical lens sphere, wherein the lens sphere is provided with an antenna array which is arranged in a spherical crown shape, and the lens sphere is arranged in a lens antenna housing; the antenna array comprises feed source array units which are annularly arranged around a lens sphere and face different directions; the lens sphere comprises a solid sphere core and a shell wrapped on the surface of the sphere core, wherein the sphere core and the shell are crystalline polymers with different dielectric constants. Aiming at the complex and special-shaped scenes in cities, the spherical lens antenna structure can form narrow wave beams and high-gain extension coverage, has the spot-plane wave beam forming capability, solves the difficult and difficult points in the coverage of 5G signals in the cities, is applied to a 5G communication base station, effectively extends the coverage distance, reduces the layout quantity of the 5G base station in the cities, and relieves the scarce problem of investing in 5G network construction site resources in the cities.
Description
Technical Field
The invention relates to the field of communication equipment, in particular to a spherical lens antenna structure.
Background
With the rapid advance of 5G communication network construction, the rapid and convenient experience brought by a 5G network is more and more deeply focused, meanwhile, the construction problem of a 5G base station in a city is gradually shown, a base station iron tower is difficult to stand beside a high-rise residence and a dense building, and the problem that the base station iron tower cannot be avoided is that residents around the base station delay worry about wireless communication electromagnetic radiation, and the design of a hidden 5G base station is important for the deep coverage of the dense building and the residence area.
Disclosure of Invention
The invention aims to provide a spherical lens antenna structure which can effectively improve the extended coverage range of a 5G communication base station and reduce the overall energy consumption.
In order to achieve the above object, the present application adopts a technical solution that is a spherical lens antenna structure, including a spherical lens sphere, the lens sphere being provided with an antenna array arranged in a spherical crown shape, the lens sphere being disposed inside a lens radome; the antenna array comprises feed source array units which are annularly arranged around a lens sphere and face different directions; the lens sphere comprises a solid sphere core and a shell wrapped on the surface of the sphere core, wherein the sphere core and the shell are crystalline polymers with different dielectric constants.
Aiming at the complex and special-shaped scenes in cities, the spherical lens antenna structure can form narrow wave beams and high-gain extension coverage, has the spot-plane wave beam forming capability, solves the difficult and difficult points in the coverage of 5G signals in the cities, is applied to a 5G communication base station, effectively extends the coverage distance, reduces the layout quantity of the 5G base station in the cities, and relieves the scarce problem of investing in 5G network construction site resources in the cities.
Furthermore, the feed source array unit is connected with an antenna feed source support for supporting the feed source array unit, and the antenna feed source support is of a frame structure which is attached to the spherical surface of the lens sphere.
Specifically, the antenna feed source support is divided into 4 quadrants for the fretwork formula structure, and every fretwork hole is provided with the installation hole site of feed array unit, can assemble 1 ~ 8 feed array units.
Furthermore, the lens radome comprises an upper antenna cover and a lower antenna cover, wherein the upper antenna cover and the lower antenna cover are connected up and down and cover the lens sphere in the lens radome; the antenna upper cover comprises a cover body which vertically corresponds to the antenna feed source support, and an inner cavity of the cover body corresponds to the upper part of the lens sphere to form a spherical crown cavity for accommodating the upper part of the lens sphere.
The lens sphere is spherical. The high-crystallinity polymer foam beads with different dielectric constants are manufactured, the density of the outer layer of the sphere is relatively high, the density of the inner layer of the sphere is relatively low, the bottom of the lens sphere is supported by a lens sphere supporting column, the periphery of the lens sphere is positioned and supported by lengthened antenna feed source fixing screws, the lens sphere supporting column arranged on the antenna lower cover is of a block structure, the lengthened antenna feed source fixing screws are higher than a feed source array unit body and are abutted against the lens sphere, and the effects of adjusting the gap between the feed source array unit and the lens sphere and supporting the side of the lens sphere are achieved.
Furthermore, an antenna protective cover is arranged outside the lens antenna housing, and the edge of the antenna protective cover is fixed on the ground through a connected well ring; the antenna protective cover is of a ladder-shaped structure.
The antenna protective cover is characterized by comprising a trapezoidal dome and a lower edge of a square bottom edge, wherein the lower edge of the antenna protective cover is arranged on a well ring, the manufacturing process structure of the antenna protective cover is divided into a framework layer and an inner patch layer, the framework layer and the inner patch layer are formed by polymer superposition with different dielectric constants, namely the framework layer, the outer patch layer and the inner patch layer are polymers with different dielectric constants, the framework layer and the inner patch layer can have different dielectric constants, the framework layer and the inner patch layer can also have different dielectric constants, the framework layer and the outer patch layer and the inner patch layer can also have different dielectric constants, the antenna protective cover is firm and durable, and the trapezoidal structure higher than the ground surface is more beneficial to the diffusion of electromagnetic. The platform on the top of the antenna shield can be selectively arranged with landscape green plants, so that the spherical lens antenna structure is more harmonious with the surrounding environment.
The spherical lens antenna structure further comprises an antenna feed source driving switch of an antenna matrix for controlling the feed source array unit to be opened and closed, the antenna feed source driving switch of the antenna matrix comprises a first-order microstrip power dividing circuit, a first-order high-power radio frequency switch module and an SMA connector connected with the feed source array unit, one end of the SMA connector is used for being connected with a signal feed source, the other end of the SMA connector is connected with the input end of the first-order microstrip power dividing circuit, and two output ends of the first-order microstrip power dividing circuit are respectively connected with the input ends of the two first-order high-power radio frequency switch modules.
Furthermore, the feed array unit is composed of a plurality of antenna feeds, each antenna feed is provided with an antenna feed connecting terminal, and each group of feed array units is provided with an antenna feed driving switch. The antenna feed source driving switch is installed in the 4-corner space of the antenna lower cover, the antenna upper cover and the antenna lower cover form a closed space, and after the antenna upper cover and the antenna lower cover are arranged, the lens antenna is in a relatively sealed working environment to meet the waterproof and dustproof requirements of different scenes.
Furthermore, an output end of each of the first-order high-power radio frequency switch modules is connected to an input end of a second-order microstrip power dividing circuit, two output ends of the second-order microstrip power dividing circuit are respectively connected to input ends of two third-order microstrip power dividing circuits, and two output ends of the third-order microstrip power dividing circuits are respectively connected to input ends of two second-order high-power radio frequency switch modules.
The feed source array units composed of feed sources are arranged in a matrix, 2, 4, 8 and more than 8 feed source array units are usually installed on the U-shaped surface of the spherical lens antenna structure, and each feed source array unit is composed of 8 antenna feed sources. Although the coverage range of the signal is greatly improved, all antenna feed sources are completely opened in the operation, the integral power consumption is certainly greatly improved, the antenna feed source driving switch of the antenna matrix is adopted, so that the same RF signal can be circularly switched among 8 antenna feed sources, the full power is always kept for driving the single antenna feed source, and the integral power consumption of the 5G communication base station is effectively reduced.
The lens support is hung in the lens antenna housing, the spherical lens antenna structure is supported and positioned by the lens support, the radiation direction is adjusted, and the hole sites for installing the antenna feed source are designed on the U-shaped surface of the lower portion of the spherical lens antenna structure and distributed in different quadrants.
Furthermore, the control end of the high-power radio frequency switch module is connected with a logic control circuit for controlling the feed source array unit through a connecting joint.
Further, the high-power radio frequency switch module comprises a radio frequency switch chip and a driver chip, the driver chip is connected with the radio frequency switch chip, and pins of the radio frequency switch chip are respectively used as an input end and an output end of the high-power radio frequency switch module.
Furthermore, the driving switch of the antenna matrix is arranged in the cavity of the aluminum alloy box body. The aluminum alloy box body is adopted, and the shielding effect on the radio frequency circuit is good.
The invention is further described with reference to the following figures and detailed description. Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description. Or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to assist in understanding the invention, and are included to explain the invention and their equivalents and not limit it unduly. In the drawings:
FIG. 1 is a schematic diagram of the overall structure of a ball lens antenna structure according to the present invention;
FIG. 2 is a partial structural diagram of a ball lens antenna structure according to the present invention;
FIG. 3 is a schematic diagram of a feed array unit component structure according to the present invention;
FIG. 4 is a beam pattern of the ball lens antenna structure of the present invention;
FIG. 5 is a block diagram of an antenna feed drive switch of the present invention;
FIG. 6 is a partial circuit diagram of a high power RF switch module of the present invention;
FIG. 7 is a timing diagram of the antenna feed drive switch logic control of the present invention;
FIG. 8 is a schematic diagram of an aluminum alloy cavity structure of an antenna feed source driven switch of the present invention;
labeled as: the antenna comprises an antenna protective cover 1, a antenna protective cover 2, a well ring 3, an antenna upper cover 4, a lens sphere 5, a lens sphere support column 6, a feed array unit 61, an antenna feed terminal 61, an antenna feed support 7, an antenna feed driving switch 8, an 81-SMA connector, a 82-microstrip power division circuit 83, a high-power radio frequency switch module, a 831-radio frequency switch, an 832-driver, an 84-aluminum alloy cavity and an antenna lower cover 9.
Detailed Description
The invention will be described more fully hereinafter with reference to the accompanying drawings. Those skilled in the art will be able to implement the invention based on these teachings. Before the present invention is described in detail with reference to the accompanying drawings, it is to be noted that:
the technical solutions and features provided in the present invention in the respective sections including the following description may be combined with each other without conflict.
Moreover, the embodiments of the present invention described in the following description are generally only some embodiments of the present invention, and not all embodiments. Therefore, all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort shall fall within the protection scope of the present invention.
With respect to terms and units in the present invention. The term "comprises" and any variations thereof in the description and claims of this invention and the related sections are intended to cover non-exclusive inclusions.
Referring to fig. 1, 2 and 3, a spherical lens antenna structure for solving the difficult and difficult problems in the deep coverage of 5G signals in cities and reducing the overall energy consumption of 5G base stations includes a spherical lens sphere provided with an antenna array arranged in a spherical crown shape, the lens sphere being disposed inside a lens radome; the antenna array comprises at least three groups of feed source array units which are annularly arranged around a lens sphere and face different directions, and the feed source array units comprise a plurality of feed source array units distributed on the curved surface of the lens sphere. The lens sphere is a lens sphere 4, the lens sphere 4 is a solid sphere structure and is made of high-crystalline polymer foaming beads with different dielectric constants, the density of the outer layer of the sphere is relatively high, the density of the inner layer of the sphere is relatively low, and the differential solid sphere structure is more beneficial to focusing of electromagnetic beams; the bottom of lens spheroid 4 relies on lens spheroid to hold in the palm post 5 to support, and the spherical side of lens is held in the palm the post 5 by the fixed screw location of elongated antenna feed and is supported, and the lens spheroid of installing at the antenna lower cover holds in the palm the post 5 and be block structure, and elongated antenna feed fixed screw is higher than feed array unit 6, offsets with lens spheroid 4, plays the effect of adjusting feed array unit 6 and 4 clearances of lens spheroid and supporting lens spheroid 4 sides.
The antenna upper cover 3 and the antenna lower cover 9 are both made of low dielectric constant materials, the upper part of the antenna upper cover 3 is of a hemispherical dome structure and is equally spaced from the excircle of the lens sphere 4, the lower part of the antenna upper cover 3 is of a square structure, and the edge of the antenna upper cover is connected with the well ring 2; above-mentioned antenna lower cover 9 is the rectangle structure, it is connected with walling crib 2 along on it, install lens spheroid on the antenna lower cover 9 and hold in the palm post 5, antenna feed support 7, play fixed and supporting role, antenna feed drive switch 8 is installed in 4 angle spaces of antenna lower cover 9, antenna upper cover 3 and the synthetic airtight space of antenna lower cover 9, set up on the antenna like this, behind the lower cover, make the lens antenna be in a relatively sealed operational environment, in order to be adapted to the waterproof of different scenes, dustproof demand.
The antenna protection cover 1 is composed of the lower edges of a trapezoid dome and a square bottom edge, the lower edges of the trapezoid dome and the square bottom edge are installed on the well ring 2, the manufacturing process structure of the antenna protection cover 1 is divided into a framework layer and an inner patch layer and an outer patch layer, and the inner patch layer and the outer patch layer are formed by polymer superposition with different dielectric constants, the antenna protection cover 1 is firm and durable, the trapezoid dome structure higher than the ground surface is more favorable for the diffusion of electromagnetic wave beams, landscape green plants can be selectively arranged on a platform at the top of the antenna protection cover 1, and the spherical lens antenna structure is.
The antenna feed source support 7 is divided into 4 quadrants by a hollow structure, each hollow hole is provided with a mounting hole position of the feed source array unit 6, and 1-8 groups of feed source array units 6 can be assembled. The feed array unit 6 is composed of 8 antenna feeds, each antenna feed is provided with an antenna feed connecting terminal 61, and each group of feed array units 6 is provided with an antenna feed driving switch 8.
The well ring 2 is of a square frame structure, is shallowly buried underground and flush with the ground surface, and plays a role in connecting and supporting the antenna protective cover 1, the antenna upper cover 3 and the antenna lower cover 9.
With reference to fig. 5, 6, 7 and 8, the antenna feed driving switch 8 includes: SMA connector 81, micro power divider 82 and high-power radio frequency switch module 83. A plurality of SMA connectors 81 in fig. 5, numbered P0, P1, P2, P3, P4, P5, P6, P7, P8, respectively; the plurality of micro power splitters 82 in the figure are respectively numbered as F1, F2, F3, F4, F5, F6 and F7; the high-power rf switch modules 83 in the figure are respectively numbered K1, K2, K3, K4, K5, K6, K7, K8, K9, and K10.
As shown in fig. 5, in the SMA connector 81, the SMA connector numbered P0 connects a signal feed source to the outside, the SMA connector numbered F1 connects an input terminal of the microstrip power divider 82 numbered F1 to the inside, two output terminals of the microstrip power divider 82 numbered F1 connect input terminals of two high-power rf switch modules 83 numbered K1 and K2, respectively, output terminals of the high-power rf switch modules 83 numbered K1 and K2, and input terminals of two microstrip power dividers 82 numbered F2 and F5, respectively, wherein the two output terminals of the microstrip power divider 82 numbered F2 connect input terminals of the two microstrip power dividers 82 numbered F3 and F4, output terminals of the microstrip power divider 82 numbered F3, connect input terminals of the two high-power rf switch modules 83 numbered K3 and K4, and output terminals of the microstrip power divider 82 numbered F4 connect input terminals of the high-power rf switch modules numbered K5 and K5, respectively, The input ends of two high-power radio frequency switch modules 83 of the K6, two output ends of a microstrip power divider 82 numbered as F6, the input ends of the microstrip power dividers 82 numbered as F6 and F6 are respectively connected, the output end of the microstrip power divider 82 numbered as F6 is respectively connected with the high-power radio frequency switch modules 83 numbered as K6 and K6, the output end of the microstrip power divider 82 numbered as F6 is respectively connected with the input ends of the high-power radio frequency switch modules 83 numbered as K6 and K6, the output ends of the high-power radio frequency switch modules 83 numbered as K6, SMA connectors 81 numbered as K6, P6 and the output ends of the high-power radio frequency switch modules 83 numbered as F6 are respectively connected with corresponding microstrip power divider. The control terminals of the high-power rf switch modules 83 numbered K1, K2, K3, K4, K5, K6, K7, K8, K9, and K10 are connected to the logic control circuit through the connection joint J1. The antenna feed source driving switch 8 has the main functions of realizing the cyclic switching of the same signal source RF in 8 antenna feed sources, keeping the driving of full power to the single antenna feed source and effectively reducing the overall power consumption of the 5G communication base station.
The high power rf switch module 83 includes: the radio frequency switch 831 is Q1 in the figure, the driver 832 is Q2 in the figure, the resistors R1-R3, the capacitors C1-C5 and the inductors L1-L4, the radio frequency switch 831 is a chip packaged by a PIN diode driving 20 PINs, the driver 832 is a chip packaged by 8 PINs, and the resistors, the capacitors and the inductors are all packaged by patches. Wherein, pin 3 of Q1 is connected to one end of capacitor C1 and inductor L1, the other end of capacitor C1 is connected to the IN input terminal, the other end of inductor L1 is connected to the Vc-1 power supply terminal, pin 9 of Q1 is connected to one end of capacitor C2 and inductor L3, the other end of capacitor C2 is connected to one end of R1, the other end of R1 is grounded, the other end of inductor L3 is connected to pin 7 of Q2 and one end of capacitor C2, the other end of capacitor C2 is grounded, pin 12 of Q2 is connected to one end of inductor L2, the other end of inductor L2 is connected to one end of resistor R2 and capacitor C2, the other end of resistor R2 is connected to pin 6 of Q2, the other end of capacitor C2 is grounded, pin 17 of Q2 is connected to one end of capacitor C2 and inductor L2, the other end of capacitor C2 is connected to the OUT output terminal, the other end of inductor L2 is connected to the Vc-2 auxiliary power supply terminal, and Vc-1 power supply terminal, pin 3 of Q2 is connected with Vc-2 auxiliary power supply end, pin 4 of Q2 is connected with one end of resistor R3, the other end of resistor R3 is connected with KZ control end, pin 5 and pin 8 of Q2 are grounded.
In the figure, a Q1 radio frequency switch 831 firstly realizes full load on and off through matching debugging of peripheral circuits. The Q2 driver 832 is matched with an auxiliary power supply Vc-2 to drive the Q1 radio frequency switch 831 to be switched on and off, and the capacitor C1 and the capacitor C3 are signal channel coupling capacitors.
The logic control timing diagram of the antenna feed source driving switch 8 shows the timing sequence of the cyclic on and off of the high-power rf switch module 83 with the numbers K3, K4, K5, K6, K7, K8, K9 and K10, and the switching timing sequence of the high-power rf switch module 83 with the numbers K1 and K2. In the figure, CK is a control clock pulse, K2 is turned off when a K1 interval is turned on, K3, K4, K5 and K6 are sequentially turned on and off, K1 is turned off when a K2 interval is turned on, and K7, K8, K9 and K10 are sequentially turned on and off, wherein switching time of turning off the K1 and K2 intervals is in the order of nanoseconds, so that the communication signals are not blocked by turning off the K1 and K2 intervals.
The periphery of the aluminum alloy cavity 84 is provided with 9 SMA connectors 81, wherein one side is used for inputting RF signals, the other side is externally connected with 8 antenna feed sources, a printed board of the antenna feed source driving switch 8 is arranged inside the aluminum alloy cavity 84, and the good shielding effect is achieved, and the positions of 10 high-power radio frequency switch modules 83 and the printed board form of the micro-strip power dividing circuit 82 can be shown in the figure.
In this embodiment, the application examples are only partial examples for dealing with complex scenes, and more application examples are derived according to the complexity of field application.
Fig. 4 shows the beam pattern of the ball lens antenna structure. The wave beam direction of the spherical lens antenna structure can adjust the radiation elevation angle of the feed source array unit 6 through the antenna feed source support 7, and all levels of floors of a high-rise building are covered from bottom to top.
The application example is a 5G communication base station, the technical characteristics of narrow wave beams and high gain are formed by utilizing the special loading and focusing functions of the spherical lens antenna structure, the extending coverage distance is effectively improved, the spherical lens antenna structure adjusts the radiation elevation angle of the feed source array unit through the antenna feed source support, and all levels of floors of a high-rise building are covered from bottom to top.
In the embodiment, the radio frequency switch is used for driving the feed source array unit to circularly switch, so that the overall power consumption of the 5G communication base station is effectively reduced. The same RF signal full power is applied to a single antenna feed source, so that each antenna feed source can work under the full power excitation condition, the radiation distance of electromagnetic beams is improved, the driving power is greatly reduced compared with the simultaneous driving of 8 antenna feed sources, and the overall power consumption of the actual measurement base station can be reduced by 50%.
Advantages of this embodiment
1. The application example of the spherical lens antenna structure is a 5G communication base station, the technical characteristics of narrow beams and high gain are formed by utilizing the special loading and focusing functions of the spherical lens antenna structure, the coverage distance is effectively extended, the layout quantity of urban 5G base stations is reduced, and the problem of scarcity of investment in 5G network construction site resources in cities is solved.
2. The spherical lens antenna structure forms an application scene of a 5G communication base station, is more suitable for covering urban dense building areas, and forms all levels of floors covering high-rise buildings from bottom to top by adjusting the radiation elevation angle of the feed source array unit.
3. The spherical lens antenna structure forms a 5G communication base station, and the same RF signal is circularly switched in 8 antenna feed sources through a radio frequency switch driving feed source array unit circular switching technology, so that the driving of the single antenna feed source is always kept at full power, and the overall power consumption of the 5G communication base station is effectively reduced.
The contents of the present invention have been explained above. Those skilled in the art will be able to implement the invention based on these teachings. All other embodiments, which can be derived by a person skilled in the art from the above description without inventive step, shall fall within the scope of protection of the present invention.
Claims (10)
1. A spherical lens antenna structure is characterized by comprising a spherical lens sphere, wherein the lens sphere is provided with an antenna array which is arranged in a spherical crown shape, and the lens sphere is arranged in a lens antenna housing; the antenna array comprises feed source array units which are annularly arranged around a lens sphere and face different directions; the lens sphere comprises a solid sphere core and a shell wrapped on the surface of the sphere core, wherein the sphere core and the shell are crystalline polymers with different dielectric constants.
2. The spherical lens antenna structure of claim 1, wherein the feed array unit is connected with an antenna feed support for supporting the feed array unit, and the antenna feed support is a frame structure attached to the spherical surface of the spherical lens.
3. The spherical lens antenna structure according to claim 2, wherein the lens radome comprises an upper antenna cover and a lower antenna cover, the upper antenna cover and the lower antenna cover are connected up and down and cover the lens sphere in the lens radome; the antenna upper cover comprises a cover body which vertically corresponds to the antenna feed source support, and an inner cavity of the cover body corresponds to the upper part of the lens sphere to form a spherical crown cavity for accommodating the upper part of the lens sphere.
4. The spherical lens antenna structure as claimed in claim 1, wherein an antenna shield is provided outside the lens radome, and the edge of the antenna shield is fixed on the ground through a well ring connected with the antenna shield; the antenna protective cover is of a ladder-shaped structure.
5. The ball lens antenna structure of claim 4, wherein the antenna shield comprises a frame layer, an outer patch layer attached to an outer wall of the frame layer, and an inner patch layer attached to an inner wall of the frame layer, and the frame layer, the outer patch layer, and the inner patch layer are polymers with different dielectric constants.
6. The spherical lens antenna structure of claim 1, further comprising an antenna feed source driving switch of the antenna matrix for controlling the feed source array unit to open and close, wherein the antenna feed source driving switch comprises a first-order microstrip power dividing circuit, a first-order high-power radio frequency switch module, and an SMA connector connected with the feed source array unit, one end of the SMA connector is used for connecting a signal feed source, the other end of the SMA connector is connected with an input end of the first-order microstrip power dividing circuit, and two output ends of the first-order microstrip power dividing circuit are respectively connected with input ends of the two first-order high-power radio frequency switch modules.
7. The spherical lens antenna structure as claimed in claim 6, wherein an output terminal of each first-order high-power rf switch module is connected to an input terminal of a second-order microstrip power splitting circuit, two output terminals of the second-order microstrip power splitting circuit are respectively connected to input terminals of two third-order microstrip power splitting circuits, and two output terminals of the third-order microstrip power splitting circuits are respectively connected to input terminals of two second-order high-power rf switch modules.
8. The spherical lens antenna structure as claimed in claim 6 or 7, wherein the control terminal of the high power radio frequency switch module is connected to the logic control circuit for controlling the feed array unit through the connection joint.
9. The spherical lens antenna structure as claimed in claim 6, wherein the high power RF switch module comprises an RF switch chip and a driver, the driver chip is connected to the RF switch chip, and pins of the RF switch chip are used as an input terminal and an output terminal of the high power RF switch module, respectively.
10. The spherical lens antenna structure of claim 6, wherein the antenna feed driving switch is disposed in a cavity of the aluminum alloy case.
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