Phased-array antenna module of Ku frequency band

Abstract

The invention provides a phased-array antenna module of a Ku frequency band, and belongs to the technical field of antennas. Comprising an array plane, a metal shell, a metal cover plate, a radio frequency adapter and a wave control board, a plurality of antenna units are installed on one side of the array plane, a plurality of screw holes are formed in the array plane, a plurality of first chips, a plurality of second chips, two radio frequency connection sockets and two low-frequency connector sockets are installed on the other side of the array plane, and a low-frequency connector plug is installed on the wave control board; a first cavity is formed in one side of the metal shell. The array plane, the metal shell, the metal cover plate, the radio frequency adapter and the wave control board are stacked together, so that the structure can be optimized, the size and the weight of the antenna module are effectively reduced, the integration level is improved, blind insertion connection between the array plane and the radio frequency adapter and between the array plane and the wave control board is achieved through plugs, the size is reduced, connection is convenient, and cost is reduced. And the reliability and the stability of the antenna module are enhanced, and the requirements of modern communication are better met.

Description

Technical Field

[0001] This invention belongs to the field of antenna technology, specifically relating to a Ku-band phased array antenna module. Background Technology

[0002] Ku-band phased array antenna modules play a crucial role in modern communications and radar technologies. In communications, they are widely used in satellite communications and terrestrial mobile communication base stations, enabling high-speed, high-capacity data transmission to meet ever-increasing communication demands. In satellite communications, Ku-band phased array antenna modules ensure stable signal transmission between satellites and ground stations, guaranteeing uninterrupted global communication. In terrestrial mobile communication base stations, they enhance signal coverage and strength, improving communication quality. In radar, Ku-band phased array antenna modules are used in weather radar and airborne radar, aiding in the precise detection and tracking of targets.

[0003] Existing Ku-band phased array antenna modules connect the array surface, wave control board, and RF adapter components through numerous discrete components and long cables. This connection method makes the entire module complex, requiring a large amount of space to accommodate the connecting cables and mechanical support structures. This results in a large module size, difficult wiring, and any problem at any connection point can lead to the failure of the entire antenna module, reducing system reliability. At the same time, the signal transmission through long cables and numerous discrete components will generate significant losses and delays, which limits the signal processing capability and response speed of the antenna module and cannot meet the needs of modern communication. Summary of the Invention

[0004] (1) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a Ku-band phased array antenna module. This addresses the problems of existing Ku-band phased array antenna modules having complex structures, difficult wiring, and the possibility that any problem at any connection point could lead to the failure of the entire antenna module, reducing system reliability. Furthermore, the significant signal loss and delay caused by signal transmission through long cables and numerous discrete components limit the signal processing capabilities and response speed of the antenna module, making it unable to meet the needs of modern communication.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, the present invention provides a Ku-band phased array antenna module, including an array surface, a metal housing, a metal cover plate, an RF adapter and a wave control board. Multiple antenna elements are installed on one side of the array surface, and multiple screw holes are opened on the array surface. Multiple first chips, multiple second chips, two RF connection sockets and two low-frequency connector sockets are installed on the other side of the array surface. A low-frequency connector plug is installed on the wave control board.

[0008] A first cavity is provided on one side of the metal housing. The array is fixedly connected to the other side of the metal housing through screw holes. A first through hole is provided on the wave control board. A second through hole corresponding to the first through hole is provided on the metal cover plate. The wave control board is installed at the bottom of the first cavity and is plugged into the low-frequency connector socket through the low-frequency connector plug. The metal cover plate is fixedly connected to the top of the first cavity. The RF adapter passes through the second through hole and the first through hole and is plugged into the RF connector socket.

[0009] Preferably, the array surface is the same size as the metal casing, and the metal cover plate and wave control plate are both smaller than the size of the metal casing.

[0010] Preferably, the number of antenna elements is 64, and the 64 antenna elements are evenly distributed in the array.

[0011] Preferably, the RF connector socket is located in the middle of the array, the two low-frequency connector sockets are located on both sides of the RF connector socket, and multiple first chips and multiple second chips are evenly distributed in an alternating manner.

[0012] Preferably, a second cavity is formed on the lower surface of the metal housing, and multiple first chips, multiple second chips, two radio frequency connection sockets and two low frequency connector sockets on one side of the array are all located in the second cavity.

[0013] Preferably, a fixed cylinder corresponding to the first through hole and the second through hole is fixedly connected to the inner bottom wall of the first cavity. The radio frequency adapter is fixedly connected to the inner bottom wall of the fixed cylinder by screws. A stepped hole is opened at the top edge of the first cavity. The metal cover plate is located in the stepped hole and is flush with the upper surface of the metal shell.

[0014] Preferably, the inner bottom wall of the first cavity is provided with a first clearance hole corresponding to the low-frequency connector socket, and the low-frequency connector plug and the low-frequency connector socket are inserted and fixed in the first clearance hole. The inner bottom wall of the fixed cylinder is provided with a second clearance hole corresponding to the radio frequency connector socket, and the radio frequency adapter and the radio frequency connector socket are inserted and fixed in the second clearance hole.

[0015] Preferably, the metal casing has four first threaded mounting holes at each of the four corners on the side near the metal cover plate, and two second threaded mounting holes are provided on the outer side of the metal casing, which are connected to the second cavity.

[0016] Preferably, a connector is installed on the wave control board, and a third clearance hole corresponding to the connector is provided on the metal cover plate.

[0017] Preferably, two dovetail blocks are fixedly connected to the left and lower sides of the metal shell, with both ends of the dovetail blocks extending to the front and rear sides of the metal shell, and dovetail grooves corresponding to the dovetail blocks are fixedly connected to the upper and right sides of the metal shell.

[0018] (3) Beneficial effects

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. The above solution optimizes the structure by stacking the array, metal housing, metal cover, RF adapter and wave control board together, thereby effectively reducing the size and weight of the antenna module and improving integration. Furthermore, the array is connected to the RF adapter and wave control board by plugs to achieve blind mating, which not only reduces the volume and facilitates connection, but also enhances the reliability and stability of the antenna module, better meeting the needs of modern communication.

[0021] 2. In the above scheme, by setting a first cavity and a second cavity on both sides of the metal shell, the array surface and the wave control board are installed in the first cavity and the second cavity. This not only ensures compact stacking but also ensures the structural strength of the module. Moreover, the second threaded mounting hole on the outer side of the metal shell can be used for expansion installation, forming a large array antenna with larger size and performance requirements, realizing various installation scenarios of the module. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the external structure of a phased array antenna module in the Ku band.

[0023] Figure 2 This is an exploded view of a phased array antenna module in the Ku band.

[0024] Figure 3 This is a schematic diagram of one side of the phased array antenna module in the Ku band.

[0025] Figure 4 This is a schematic diagram of the other side of the phased array antenna module in the Ku band.

[0026] Figure 5 This is a schematic diagram of the bottom structure of a phased array antenna module in the Ku band.

[0027] Figure 6 This is a schematic diagram of the installation structure of the wave control board for a Ku-band phased array antenna module.

[0028] Figure 7 This is a front view cross-sectional diagram of a phased array antenna module in the Ku band.

[0029] Figure 8 This is a schematic diagram of the assembly structure of a phased array antenna module in the Ku band.

[0030] Figure 9 This is a schematic diagram of the structure of a phased array antenna module for the Ku band with the addition of a dovetail block.

[0031] Figure 10 For Ku-band phased array antenna modules Figure 9 A magnified structural diagram of point A in the middle.

[0032] The labels in the attached diagram are as follows: 101, antenna array; 102, metal housing; 103, metal cover plate; 104, RF adapter; 105, wave control board; 106, connector; 201, antenna unit; 202, screw hole; 203, first chip; 204, RF connection socket; 205, low-frequency connector socket; 206, second chip; 301, low-frequency connector plug; 1051, first through hole; 1031, second through hole; 1032, third clearance hole; 1021, first cavity; 1022, second cavity; 1023, fixing cylinder; 1024, screw; 1025, stepped hole; 1026, first clearance hole; 1027, second clearance hole; 401, first threaded mounting hole; 402, second threaded mounting hole; 111, dovetail block; 112, dovetail groove.

[0033] As shown in the figure, specific structures and devices are labeled in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0034] This invention provides a Ku-band phased array antenna module, including an array 101, a metal housing 102, a metal cover 103, an RF adapter 104, and a wave control board 105. The array 101 radiates electromagnetic waves by printing metal patches on a dielectric substrate. The RF adapter 104 is responsible for accurately transmitting the RF signals received by the antenna array 101 to the subsequent signal processing unit, and also transmits the RF signals generated by the signal processing unit to the antenna array 101 for transmission. The wave control board 105... Precise control of the phase and amplitude of each array element signal enables the antenna to quickly and flexibly change the beam direction according to actual needs, thereby realizing the detection and communication of targets in different directions. Multiple antenna elements 201 are installed on one side of the array 101, and multiple screw holes 202 are opened on the array 101. Multiple first chips 203, multiple second chips 206, two RF connection sockets 204 and two low-frequency connector sockets 205 are installed on the other side of the array 101. A low-frequency connector plug 301 is installed on the wave control board 105.

[0035] A first cavity 1021 is formed on one side of the metal housing 102. The array surface 101 is fixedly connected to the other side of the metal housing 102 through screw holes 202. A first through hole 1051 is formed on the wave control plate 105, and a second through hole 1031 corresponding to the first through hole 1051 is formed on the metal cover plate 103. The wave control plate 105 is installed at the bottom of the first cavity 1021 and is inserted into the low-frequency connector socket 205 through the low-frequency connector plug 301. The metal cover plate 103 is fixedly connected. At the top of the inner cavity 1021, the RF adapter 104 passes through the second through hole 1031 and the first through hole 1051 and is plugged into the RF connection socket 204. The metal housing 102 is a double-sided metal cavity structure. One side of the first cavity 1021 houses the wave control board 105, and then the metal cover plate 103 is covered to form a closed space. The wave control board 105 is provided with a low-frequency connector plug 301. Through the perforation of the metal housing 102, blind interlocking with the array low-frequency connector socket 205 can be achieved.

[0036] like Figure 2 and Figure 3As shown, in this embodiment, the array 101 and the metal housing 102 are the same size, while the metal cover 103 and the wave control plate 105 are smaller than the metal housing 102. This ensures that after installation, the array 101 is flush with the side of the metal housing 102, allowing for the assembly of larger antennas. The metal housing 102 provides robust and reliable physical protection for the internal components, resisting external mechanical shocks, collisions, and vibrations, ensuring the antenna module operates normally in various complex environments. During transportation and installation, the metal housing 102 prevents damage to the internal components. Secondly, the metal housing 102 has excellent electromagnetic shielding performance. Since the antenna module generates electromagnetic radiation during operation and is also affected by external electromagnetic interference, the metal housing 102 effectively blocks internal electromagnetic signals from leaking into the external environment, preventing interference with other surrounding electronic devices. Simultaneously, it prevents external electromagnetic interference from entering the antenna module, ensuring the stability and accuracy of signal transmission between internal components. Furthermore, during antenna module operation, the internal components generate heat. The metal housing 102 can transfer this heat to the outside through thermal conduction, achieving heat dissipation and maintaining the antenna module within a suitable temperature range, thus improving its reliability and service life.

[0037] like Figure 2 and Figure 3 As shown, in this embodiment, there are 64 antenna elements 201, which are evenly distributed in an array and arranged in a certain shape.

[0038] like Figure 2 and Figure 4 As shown, in this embodiment, the radio frequency connector 204 is located in the middle of the array 101, two low frequency connectors 205 are located on both sides of the radio frequency connector 204, and multiple first chips 203 and multiple second chips 206 are evenly distributed in an alternating manner.

[0039] like Figure 2 , Figure 4 and Figure 7 As shown, in this embodiment, a second cavity 1022 is provided on the lower surface of the metal housing 102. Multiple first chips 203, multiple second chips 206, two radio frequency connection sockets 204 and two low frequency connector sockets 205 on one side of the array 101 are all located in the second cavity 1022. The inner wall and edge of the second cavity 1022 are provided with mounting grooves corresponding to the screw holes 202. The array 101 can be assembled and fixed through the screw holes 202 between the antenna units 201.

[0040] like Figure 2 and Figure 7As shown, in this embodiment, a fixed cylinder 1023 corresponding to the first through hole 1051 and the second through hole 1031 is fixedly connected to the inner bottom wall of the first cavity 1021. The radio frequency adapter 104 is fixedly connected to the inner bottom wall of the fixed cylinder 1023 by screws 1024. One side of the metal housing 102 has a threaded hole in the fixed cylinder 1023 of the first cavity 1021, which can be used to install the radio frequency adapter 104. Through the perforation of the metal housing 102, blind-plug interconnection with the array radio frequency connection socket 204 can be achieved.

[0041] like Figure 2 and Figure 7 As shown, in this embodiment, a stepped hole 1025 is provided at the top edge of the first cavity 1021, and a metal cover plate 103 is located in the stepped hole 1025 and is flush with the upper surface of the metal shell 102. The four sides of the metal cover plate 103 are provided with blind holes for installation, so that the metal cover plate 103 is fixedly connected to the metal shell 102.

[0042] like Figure 2 , Figure 6 and Figure 7 As shown, in this embodiment, the inner bottom wall of the first cavity 1021 has a first clearance hole 1026 corresponding to the low-frequency connector socket 205. The low-frequency connector plug 301 and the low-frequency connector socket 205 are inserted and fixed in the first clearance hole 1026. The inner bottom wall of the fixing cylinder 1023 has a second clearance hole 1027 corresponding to the radio frequency connection socket 204. The radio frequency adapter 104 and the radio frequency connection socket 204 are inserted and fixed in the second clearance hole 1027. The low-frequency connector socket 205 is disposed in multiple first chips 203 and multiple second chips 204. The gap between the two chips 206 is connected to the array 101 and the wave control board 105 by blind mating through the low-frequency connector socket 205. The chip gap is very small, generally about 10 mm. Blind mating interconnection can make the module small in size and easy to connect. The array 101 has a power splitting network inside. The gap between the multiple first chips 203 and multiple second chips 206 is provided with RF connection sockets 204. The RF signal is concentrated in the RF connection socket 204 through the power splitting network. Then the RF connection socket 204 and the RF adapter 104 are blind mated and interconnected to output the RF signal.

[0043] like Figure 1 , Figure 2 and Figure 8As shown, in this embodiment, the metal housing 102 has four first threaded mounting holes 401 at each of its four corners near the metal cover plate 103, and two second threaded mounting holes 402 are provided on each of the outer surfaces of the metal housing 102. The second threaded mounting holes 402 communicate with the second cavity 1022. A connector 106 is installed on the wave control board 105, and a third clearance hole 1032 corresponding to the connector 106 is provided on the metal cover plate 103. In this way, multiple metal housings 102 can be spliced ​​together, and adjacent metal housings 102 can be fixed together through the two second threaded mounting holes 402 on the side to form a large array antenna with larger size and performance requirements, realizing various installation scenarios of the module.

[0044] like Figure 9 and Figure 10 As shown, in this embodiment, two dovetail blocks 111 are fixedly connected to the left and lower sides of the metal housing 102. The two ends of the dovetail blocks 111 extend to the front and rear sides of the metal housing 102. The upper and right sides of the metal housing 102 are fixedly connected to dovetail grooves 112 corresponding to the dovetail blocks 111. When multiple metal housings 102 are spliced ​​together, the dovetail block 111 on one side of the metal housing 102 is inserted into the dovetail groove 112 on the side of the adjacent metal housing 102 for initial fixation. Then, the adjacent metal housings 102 can be fixed together through the two second threaded mounting holes 402 on the side to form a large array antenna with larger size and performance requirements.

[0045] The technical solution provided by this invention optimizes the structure by stacking the array 101, metal housing 102, metal cover plate 103, RF adapter 104, and wave control board 105 together, thereby effectively reducing the size and weight of the antenna module and improving integration. Furthermore, the array 101 is connected to the RF adapter 104 and wave control board 105 by blind plugging, which not only reduces the volume and facilitates connection, but also enhances the reliability and stability of the antenna module, better meeting the needs of modern communication. By setting a first cavity 1021 and a second cavity 1022 on both sides of the metal housing 102, the array 101 and wave control board 105 are installed in the first cavity 1021 and the second cavity 1022, which not only ensures compact stacking but also ensures the structural strength of the module. Moreover, the second threaded mounting hole 402 on the outer side of the metal housing 102 allows for expandable installation, forming a large array antenna with larger size and performance requirements, realizing various installation scenarios for the module.

[0046] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details have been described in detail in the above preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0047] Those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc.

[0048] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A Ku-band phased array antenna module, characterized in that, The device includes an array (101), a metal housing (102), a metal cover plate (103), an RF adapter (104), and a wave control board (105). Multiple antenna units (201) are installed on one side of the array (101), and multiple screw holes (202) are opened on the array (101). Multiple first chips (203), multiple second chips (206), two RF connection sockets (204), and two low-frequency connector sockets (205) are installed on the other side of the array (101). A low-frequency connector plug (301) is installed on the wave control board (105). A first cavity (1021) is provided on one side of the metal housing (102). The array surface (101) is fixedly connected to the other side of the metal housing (102) through screw holes (202). A first through hole (1051) is provided on the wave control plate (105). A second through hole (1031) corresponding to the first through hole (1051) is provided on the metal cover plate (103). The wave control plate (105) is installed in the inner bottom of the first cavity (1021) and is plugged into the low frequency connector socket (205) through the low frequency connector plug (301). The metal cover plate (103) is fixedly connected to the inner top of the first cavity (1021). The RF adapter (104) passes through the second through hole (1031) and the first through hole (1051) and is plugged into the RF connection socket (204).

2. The Ku-band phased array antenna module according to claim 1, characterized in that, The array surface (101) is the same size as the metal shell (102), and the metal cover plate (103) and wave control plate (105) are both smaller than the size of the metal shell (102).

3. The Ku-band phased array antenna module according to claim 2, characterized in that, The number of antenna elements (201) is 64, and the 64 antenna elements (201) are evenly distributed in an array.

4. The Ku-band phased array antenna module according to claim 3, characterized in that, The radio frequency connector (204) is located in the middle of the array (101), and the two low frequency connectors (205) are located on both sides of the radio frequency connector (204). The first chip (203) and the second chip (206) are evenly distributed in an alternating manner.

5. The Ku-band phased array antenna module according to claim 1, characterized in that, The lower surface of the metal housing (102) is provided with a second cavity (1022), and multiple first chips (203), multiple second chips (206), two radio frequency connection sockets (204) and two low frequency connector sockets (205) on one side of the array (101) are all located in the second cavity (1022).

6. The Ku-band phased array antenna module according to claim 5, characterized in that, The inner bottom wall of the first cavity (1021) is fixedly connected to a fixed cylinder (1023) corresponding to the first through hole (1051) and the second through hole (1031). The radio frequency adapter (104) is fixedly connected to the inner bottom wall of the fixed cylinder (1023) by screws (1024). A stepped hole (1025) is opened at the top edge of the first cavity (1021). The metal cover plate (103) is located in the stepped hole (1025) and is flush with the upper surface of the metal shell (102).

7. The Ku-band phased array antenna module according to claim 6, characterized in that, The inner bottom wall of the first cavity (1021) is provided with a first clearance hole (1026) corresponding to the low frequency connector socket (205). The low frequency connector plug (301) and the low frequency connector socket (205) are inserted and fixed in the first clearance hole (1026). The inner bottom wall of the fixed cylinder (1023) is provided with a second clearance hole (1027) corresponding to the radio frequency connector socket (204). The radio frequency adapter (104) and the radio frequency connector socket (204) are inserted and fixed in the second clearance hole (1027).

8. The Ku-band phased array antenna module according to claim 3, characterized in that, The metal housing (102) has four first threaded mounting holes (401) at each of its four corners near the metal cover plate (103), and two second threaded mounting holes (402) are provided on the outer side of the metal housing (102). The second threaded mounting holes (402) are connected to the second cavity (1022).

9. The Ku-band phased array antenna module according to claim 8, characterized in that, A connector (106) is installed on the wave control plate (105), and a third clearance hole (1032) corresponding to the connector (106) is opened on the metal cover plate (103).

10. The Ku-band phased array antenna module according to claim 9, characterized in that, Two dovetail blocks (111) are fixedly connected to the left and lower sides of the metal shell (102). The two ends of the dovetail blocks (111) extend to the front and rear sides of the metal shell (102). The upper and right sides of the metal shell (102) are fixedly connected to dovetail grooves (112) corresponding to the dovetail blocks (111).

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