Millimeter wave broadband phased-array antenna and device

Abstract

The invention discloses a millimeter wave broadband phased-array antenna and device, and belongs to the technical field of phased-array antennas. The millimeter wave broadband phased-array antenna comprises a baseband waveform plate, and the baseband waveform plate is connected with a positioning system, an external interface, a complete machine power supply and a plurality of antenna sub-arrays. The complete machine power supply is connected with the local oscillator assembly and the power supply interface; the local oscillator assembly is connected with a plurality of antenna sub-arrays; the baseband waveform plate is used for receiving a man-machine interaction interface instruction, controlling each antenna component and feeding back the real-time state of the antenna; the complete machine power supply is used for providing energy; and the local oscillator assembly is used for generating frequencies required by up-conversion and down-conversion through the phase-locked loop. According to the millimeter wave broadband phased-array antenna, the integration level of the phased-array antenna is improved, the product miniaturization design is achieved, the whole millimeter wave broadband phased-array antenna is compact in structure, small in size, complete in function, high in safety coefficient, good in reliability, low in hardware cost and low in repair cost, and batch production and application of phased arrays can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of phased array antennas, and in particular to a millimeter-wave broadband phased array antenna and a device. Background Art

[0002] With the rapid development of fifth-generation mobile communication technology (5G) and satellite communication systems, the millimeter-wave frequency band (30-300GHz) has become a key technology for achieving high-speed wireless transmission due to its large bandwidth. As a core component of millimeter-wave communication systems, the performance of phased array antennas directly determines communication quality and system reliability. Traditional phased array antenna designs generally have the following technical bottlenecks: First, the low integration of array units results in a bulky system, making it difficult to meet the miniaturization requirements of modern communication equipment; second, conventional beamforming technology is not adaptable to complex electromagnetic environments, making it difficult to achieve precise spatial filtering in scenarios with multiple interference sources; third, the use of discrete RF components in traditional designs leads to high hardware costs and complex maintenance and debugging, making it unfavorable for large-scale production applications. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a millimeter-wave broadband phased array antenna and device.

[0004] The objectives of the present invention are achieved through the following technical solutions: In a first aspect, the present invention provides: a millimeter-wave broadband phased array antenna, which is arranged on a millimeter-wave broadband phased array antenna device, including a baseband waveform board, the baseband waveform board is connected to a positioning system, an external interface, a whole-machine power supply, and multiple antenna subarrays; the whole-machine power supply is connected to a local oscillator component and a power interface; the local oscillator component is connected to multiple antenna subarrays; the baseband waveform board is used to receive human-computer interaction interface instructions, control each antenna component, and feedback the real-time status of the antenna; the whole-machine power supply is used to provide energy; the local oscillator component is used to generate the frequencies required for up- and down-conversion through a phase-locked loop; During communication, beam scanning is performed according to the beam pointing information sent by the baseband waveform board and communication is established with the communication target. The modulated signal sent by the baseband waveform board is then transmitted, and the modulated signal of the communication target is received and transmitted to the back-end baseband waveform board.

[0005] Preferably, the external interface includes a service interface, a maintenance interface and a power interface.

[0006] Preferably, the positioning system includes an inertial navigation module and a navigation antenna, and the inertial navigation module is connected to the baseband waveform board and the navigation antenna; the navigation antenna is used to receive navigation satellite signals and transmit them to the inertial navigation module, and parse the current geographic coordinate position information. The inertial navigation module also parses the current attitude information, and transmits the coordinate position and attitude information to the baseband waveform board through the interface for processing and use.

[0007] Preferably, the whole power supply has an integrated EMI circuit inside to separate it from the outside world.

[0008] Preferably, the antenna subarray includes a multi-layer antenna RF board, on which a millimeter-wave broadband antenna array, a TR chip, a RF power division network, an up-down frequency conversion chip, and a power control chip are integrated; the millimeter-wave broadband antenna array is connected to the TR chip; the TR chip is connected to the power control chip and the RF power division network; the RF power division network is connected to the up-down frequency conversion chip; and the up-down frequency conversion chip is connected to the power control chip.

[0009] Preferably, there are four antenna subarrays; after establishing communication with the communication target, a wide beam is used to scan the interference source target in the covered airspace, and four sets of target position data are obtained respectively to form four sets of position matrices; then a target coordinate distribution map is drawn, and overlapping analysis is performed to screen out the real interference source target; a difference beam is used to accurately locate the real interference source target, and its accurate coordinates are determined to obtain the interference source position; anti-interference processing is performed on the interference source position, and a narrow beam mode is used for communication. At the same time, the position of the real interference source in the phased array pattern is zeroed to achieve system anti-interference.

[0010] Preferably, the whole machine power supply is also connected to a heat dissipation system.

[0011] Preferably, the heat dissipation system is an air cooling system.

[0012] The second aspect of the present invention provides: a millimeter-wave broadband phased array antenna device, comprising a cavity, wherein an antenna RF integrated board is installed on the front side of the cavity, a power supply board and a baseband waveform board structure are installed on the back side of the cavity, a heat dissipation structure is installed on the first side of the cavity, a positioning system structure is installed on the second side of the cavity, and an external interface structure is installed on the third side of the cavity.

[0013] Preferably, the heat dissipation structure is an air-cooling structure.

[0014] Preferably, a fan safety shield is provided on the outside of the air-cooling structure.

[0015] Preferably, a radome is provided above the antenna RF integrated board.

[0016] Preferably, a cover plate is provided above the power supply board and the baseband waveform board structure.

[0017] Preferably, the positioning system structure includes a navigation antenna structure and an inertial navigation module structure.

[0018] Preferably, when the millimeter-wave broadband phased array antenna device is installed, the second side where the positioning system structure is located is facing upward to receive the best positioning signal and provide geographic coordinate information and attitude information; the third side where the external interface structure is located is facing downward to protect the connector.

[0019] The beneficial effects of the present invention are: 1) The millimeter-wave broadband phased array antenna adopts advanced design methods, which improves the integration of the phased array antenna and realizes the miniaturization design of the product. The entire millimeter-wave broadband phased array antenna has a compact structure, small size, complete functions, high safety factor, good reliability, low hardware cost and low rework cost, which can realize the mass production application of the phased array.

[0020] 2) By zeroing the location of the actual interference source in the phased array pattern, the anti-interference capability during communication is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the principle block diagram of the millimeter wave broadband phased array antenna; Figure 2 This is a front view of the millimeter-wave broadband phased array antenna device; Figure 3 This is a back view of the millimeter-wave broadband phased array antenna device; In the figure, 101 is the cavity; 102 is the antenna cover; 103 is the antenna RF integrated board; 104 is the air-cooling structure; 105 is the inertial navigation module structure; 106 is the navigation antenna structure; 107 is the cover; 108 is the power board; 109 is the baseband waveform board structure; 110 is the external interface structure. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0023] See Figure 1-Figure 3 The first aspect of the present invention provides: a millimeter-wave broadband phased array antenna, which is arranged on a millimeter-wave broadband phased array antenna device, including a baseband waveform board, the baseband waveform board is connected to a positioning system, an external interface, a whole-machine power supply and multiple antenna sub-arrays; the whole-machine power supply is connected to a local oscillator component and a power interface; the local oscillator component is connected to multiple antenna sub-arrays; the baseband waveform board is used to receive instructions from a human-computer interaction interface, control each antenna component, and feedback the real-time status of the antenna; the whole-machine power supply is used to provide energy; the local oscillator component is used to generate the frequencies required for up- and down-conversion through a phase-locked loop; During communication, beam scanning is performed according to the beam pointing information sent by the baseband waveform board and communication is established with the communication target. The modulated signal sent by the baseband waveform board is then transmitted, and the modulated signal of the communication target is received and transmitted to the back-end baseband waveform board.

[0024] In this embodiment, the baseband waveform board in the millimeter-wave broadband phased array antenna serves as the system's main processor, receiving instructions from the human-computer interaction interface, controlling each component separately, and simultaneously feeding back the product's real-time status to the human-computer interaction interface. The millimeter-wave broadband phased array antenna's overall power supply provides energy for the system, and an internally integrated EMI circuit separates the system from the outside world, preventing external interference with the normal operation of the product and preventing the product from interfering with the normal operation of external equipment. The local oscillator component generates the frequencies required for up- and down-conversion through a phase-locked loop, and the control chip within the component rapidly switches the output frequency based on the system operating frequency issued by the baseband waveform board to meet system requirements.

[0025] In some embodiments, the external interface includes a service interface, a maintenance interface, and a power interface.

[0026] In some embodiments, the positioning system includes an inertial navigation module and a navigation antenna, and the inertial navigation module is connected to the baseband waveform board and the navigation antenna; the navigation antenna is used to receive navigation satellite signals and transmit them to the inertial navigation module to parse the current geographic coordinate position information. The inertial navigation module also parses the current attitude information and transmits the coordinate position and attitude information to the baseband waveform board through the interface for processing and use.

[0027] In this embodiment, the positioning system is composed of a navigation antenna and an inertial navigation module. The navigation antenna receives the navigation satellite signal and transmits it to the inertial navigation module to parse the current geographic coordinate position information. The inertial navigation module also parses the attitude information of the current product and transmits the coordinate position and attitude information to the baseband waveform board through the interface for processing and use. The positioning system is an indispensable part of the phased array antenna.

[0028] In some embodiments, the whole power supply has an internal integrated EMI circuit to separate it from the outside world.

[0029] In some embodiments, the antenna subarray includes a multi-layer antenna RF board, which integrates a millimeter-wave broadband antenna array, a TR chip, a RF power division network, an up-down conversion chip, and a power control chip; the millimeter-wave broadband antenna array is connected to the TR chip; the TR chip is connected to the power control chip and the RF power division network; the RF power division network is connected to the up-down conversion chip; and the up-down conversion chip is connected to the power control chip.

[0030] In this embodiment, the antenna subarray adopts a highly integrated design, integrating functions such as antenna, RF, frequency conversion and power control. The core design is to integrate the millimeter wave broadband antenna array, TR chip, RF power division network, up and down conversion chip and power control chip on a multi-layer antenna RF board. The multi-layer antenna RF board integrates multiple functions into one through a new design concept and conventional printed circuit board technology, thereby improving the integration of the phased array antenna and realizing the miniaturization design of the product.

[0031] In some embodiments, there are four antenna subarrays; after establishing communication with the communication target, a wide beam is used to scan the interference source target in the covered airspace, and four sets of target position data are obtained respectively to form four sets of position matrices; then a target coordinate distribution map is drawn, and overlapping analysis is performed to screen out the real interference source target; a difference beam is used to accurately locate the real interference source target, and its accurate coordinates are determined to obtain the interference source position; anti-interference processing is performed on the interference source position, and a narrow beam mode is used for communication. At the same time, the position of the real interference source in the phased array pattern is zeroed to achieve system anti-interference.

[0032] In some embodiments, the whole machine power supply is also connected to a heat dissipation system.

[0033] In this embodiment, the heat dissipation system can select a variety of heat dissipation methods as alternatives. The present invention proposes air cooling, but is not limited to this heat dissipation method. Without changing the concept of the present invention, the use of gas heat dissipation also falls within the scope of protection of the present invention.

[0034] In some embodiments, the heat dissipation system is an air cooling system.

[0035] The second aspect of the present invention provides: a millimeter-wave broadband phased array antenna device, comprising a cavity 101, wherein an antenna RF integrated board 103 is installed on the front of the cavity 101, a power supply board 108 and a baseband waveform board structure 109 are installed on the back of the cavity 101, a heat dissipation structure is installed on the first side of the cavity 101, a positioning system structure is installed on the second side of the cavity, and an external interface structure 110 is installed on the third side of the cavity.

[0036] In this embodiment, the millimeter-wave broadband phased array antenna is based on a cavity 101 as its main structure. The antenna RF integrated board 103 is placed on the front of the cavity, the power board 108 and the baseband waveform board structure 109 are placed on the back of the cavity 101, and the air-cooling structure 104 is placed on the first side of the cavity 101 and is equipped with a fan safety shield. When the air-cooling structure 104 is in operation, cold air circulates through the middle of the cavity to remove heat. The positioning system structure is placed on the second side of the cavity. The entire millimeter-wave broadband phased array antenna has a compact structure, small size, complete functions, high safety factor, and good reliability.

[0037] In some embodiments, the heat dissipation structure is an air cooling structure 104 .

[0038] In some embodiments, a fan safety shield is provided on the outside of the air-cooling structure 104 .

[0039] In some embodiments, a radome 102 is provided above the antenna RF integrated board 103 .

[0040] In some embodiments, a cover plate 107 is provided above the power board 108 and the baseband waveform board structure 109 .

[0041] In some embodiments, the positioning system structure includes a navigation antenna structure 106 and an inertial navigation module structure 105 .

[0042] In some embodiments, when the millimeter wave broadband phased array antenna device is installed, the second side where the positioning system structure is located is facing upward to receive the best positioning signal and provide geographic coordinate information and attitude information; the third side where the external interface structure 110 is located is facing downward to protect the connector.

[0043] In this embodiment, when the product is set up, the second side where the positioning system is located faces upward, and the positioning system can receive the positioning signal with optimal performance, providing the system with geographic coordinate information and posture information. The external interfaces are concentrated on the third side of the cavity. When the product is set up, the third side where the external interface structure 110 is located faces downward, which can better protect the connector.

[0044] The foregoing description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Rather, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the concept described herein through the above teachings or techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the appended claims.

Claims

1. A millimeter-wave broadband phased array antenna, characterized by: It is installed on the millimeter wave broadband phased array antenna device, including a baseband waveform board, which is connected to the positioning system, external interface, whole machine power supply and multiple antenna sub-arrays; The whole machine power supply is connected to the local oscillator component and the power interface; the local oscillator component is connected to multiple antenna sub-arrays; The baseband waveform board is used to receive human-computer interaction interface instructions, control various antenna components, and feedback the real-time status of the antenna; the whole machine power supply is used to provide energy; the local oscillator component is used to generate the required frequency for up-conversion and down-conversion through the phase-locked loop; During communication, beam scanning is performed according to the beam pointing information sent by the baseband waveform board and communication is established with the communication target. The modulated signal sent by the baseband waveform board is then transmitted, and the modulated signal of the communication target is received and transmitted to the back-end baseband waveform board.

2. The millimeter-wave broadband phased array antenna according to claim 1, wherein: The external interfaces include a service interface, a maintenance interface and a power interface.

3. The millimeter-wave broadband phased array antenna according to claim 1, wherein: The positioning system includes an inertial navigation module and a navigation antenna. The inertial navigation module is connected to the baseband waveform board and the navigation antenna. The navigation antenna is used to receive navigation satellite signals and transmit them to the inertial navigation module to parse the current geographic coordinate position information. The inertial navigation module also parses the current attitude information and transmits the coordinate position and attitude information to the baseband waveform board through an interface for processing and use.

4. The millimeter-wave broadband phased array antenna according to claim 1, wherein: The whole power supply has an integrated EMI circuit inside, which is isolated from the outside world.

5. The millimeter-wave broadband phased array antenna according to claim 1, wherein: The antenna subarray includes a multi-layer antenna RF board, which integrates a millimeter-wave broadband antenna array, a TR chip, a RF power division network, an up-down conversion chip, and a power control chip; the millimeter-wave broadband antenna array is connected to the TR chip; the TR chip is connected to the power control chip and the RF power division network; the RF power division network is connected to the up-down conversion chip; and the up-down conversion chip is connected to the power control chip.

6. The millimeter-wave broadband phased array antenna according to any one of claims 1 to 5, characterized in that: There are four antenna sub-arrays; after establishing communication with the communication target, a wide beam is used to scan the interference source target in the covered airspace, and four sets of target position data are obtained respectively, forming four sets of position matrices; Then, a target coordinate distribution map is drawn and overlap analysis is performed to screen out the real interference source target; a difference beam is used to accurately locate the real interference source target, and its exact coordinates are determined to obtain the interference source position; anti-interference processing is performed on the interference source position, and a narrow beam mode is used for communication. At the same time, the position of the real interference source in the phased array pattern is zeroed to achieve system anti-interference.

7. The millimeter-wave broadband phased array antenna according to any one of claims 1 to 5, characterized in that: The whole machine power supply is also connected to a heat dissipation system.

8. The millimeter-wave broadband phased array antenna according to claim 7, wherein: The heat dissipation system is an air cooling system.

9. A millimeter-wave broadband phased array antenna device, characterized in that: A millimeter-wave broadband phased array antenna as described in any one of claims 1 to 8 is provided, comprising a cavity, wherein an antenna RF integrated board is installed on the front of the cavity, a power supply board and a baseband waveform board structure are installed on the back of the cavity, a heat dissipation structure is installed on the first side of the cavity, a positioning system structure is installed on the second side of the cavity, and an external interface structure is installed on the third side of the cavity.

10. The millimeter-wave broadband phased array antenna device according to claim 9, characterized in that: The heat dissipation structure is an air-cooling structure.

11. The millimeter-wave broadband phased array antenna device according to claim 10, characterized in that: A fan safety shield is provided outside the air-cooling structure.

12. The millimeter-wave broadband phased array antenna device according to claim 9, wherein: A radome is provided above the antenna radio frequency integrated board.

13. The millimeter-wave broadband phased array antenna device according to claim 9, wherein: A cover plate is provided above the power supply board and the baseband waveform board structure.

14. The millimeter-wave broadband phased array antenna device according to claim 9, wherein: The positioning system structure includes a navigation antenna structure and an inertial navigation module structure.

15. The millimeter-wave broadband phased array antenna device according to claim 9, characterized in that: When setting up the millimeter-wave broadband phased array antenna device, the second side where the positioning system structure is located should face upward to receive the best positioning signal and provide geographic coordinate information and attitude information; the third side where the external interface structure is located should face downward to protect the connector.

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