A composite body antenna radar system and its use

Abstract

The application discloses a composite antenna radar system and application thereof, and relates to the technical field of radar detection equipment.The application comprises a two-dimensional active phased array antenna, a broadband common-aperture antenna, a multi-channel channel, a real-time signal processor, a comprehensive secondary power supply and an integrated whole machine structure.The two-dimensional active phased array antenna and the broadband common-aperture antenna are installed in a common-aperture ring and are uniformly distributed, so that spatial multiplexing and beam coordination are realized; the integrated whole machine structure highly integrates each subsystem through an inclined support, a window plate, a flange and an arc-shaped connecting plate, optimizes the aerodynamic shape and simplifies assembly, adjustment and maintenance. Phase change heat-absorbing material and heat-conducting glue are adopted to realize efficient heat dissipation, an EH type shock absorber is adopted to improve the anti-vibration performance, the real-time signal processor adopts a standard 3U-VPX architecture, the comprehensive secondary power supply adopts a split type architecture to reduce electromagnetic interference, and the application has the advantages of high integration, small size, strong anti-interference and environmental adaptability, and can stably realize target detection, tracking, direction finding and positioning in a complex electromagnetic, high-temperature and high-vibration environment.

Description

Technical Field

[0001] This invention relates to the field of radar detection equipment technology, specifically to a composite antenna radar system and its application. Background Technology

[0002] Antenna radar is the core equipment for achieving autonomous target acquisition, tracking, and locking. Its technological development has gradually evolved from a single system to a composite system. Early homing radars mostly adopted a single system or infrared imaging system, which could only meet the detection needs of specific scenarios. With the increasing complexity of modern combat environments, factors such as strong electromagnetic interference, target stealth, multi-target confrontation, and interference from complex terrain at low / ultra-low altitudes have placed higher demands on radar's anti-jamming capabilities, detection range, target recognition rate, miniaturization, and reliability. The active-passive composite system has become the mainstream development direction for radar systems.

[0003] Currently, existing composite antenna radar systems have the following drawbacks:

[0004] 1. Defects of composite antenna design: Existing composite antenna solutions are difficult to achieve a highly integrated common aperture design, resulting in an excessively large system size that cannot be adapted to miniaturized platforms; at the same time, the antenna arrangement leads to insufficient transmit and receive isolation, severe interference between different antennas, and reduced detection accuracy.

[0005] 2. Insufficient integration of structural layout: The dispersed layout of subsystems leads to low space utilization of the whole machine, messy cabling, and complicated installation, adjustment and maintenance operations; the structural design does not achieve conformal optimization with the installation carrier, affecting aerodynamic performance and fairing installation compatibility.

[0006] 3. Poor environmental adaptability: A single heat dissipation solution cannot cope with the high-power heat generation problem of the radar system, and heat accumulation can easily lead to component failure; traditional vibration reduction measures have low vibration reduction efficiency, and the severe vibration of the carrier during flight can easily cause the circuit board to loosen and the signal transmission to be abnormal.

[0007] 4. High maintenance and upgrade difficulty: The signal processing hardware adopts a non-standard architecture, making it difficult to replace the boards; the power system has a high degree of integration, making fault diagnosis and module replacement inconvenient, resulting in high maintenance costs throughout the entire life cycle.

[0008] 5. Power supply interference issues: The integrated power supply design results in the lines supplying power to high-power active phased arrays being close to the lines supplying power to low-power digital circuits, which can easily lead to conducted and radiated interference, affecting the system's signal-to-noise ratio and stability.

[0009] Therefore, existing technologies need to be improved. Summary of the Invention

[0010] The technical problem to be solved by the present invention is that the existing technology has defects in antenna composite form, insufficient integration of structural layout, poor environmental adaptability, high difficulty in maintenance and upgrading, and power interference problems. The purpose is to provide a composite antenna radar system and its application, which adopts corresponding technical means and has better beneficial effects.

[0011] This invention is achieved through the following technical solution:

[0012] In a first aspect, the present invention provides a composite antenna radar system, including a two-dimensional active phased array antenna, a broadband common aperture antenna, a multi-channel channel, a real-time signal processor, an integrated secondary power supply, and an integrated overall structure.

[0013] The two-dimensional active phased array antenna is connected to the broadband common-aperture antenna in a ring-shaped uniformly distributed installation manner with a common aperture. The integrated whole structure includes a slanted bracket, a window plate, a flange, and an arc-shaped connecting plate. The integrated whole structure integrates the two-dimensional active phased array antenna, the broadband common-aperture antenna, the multi-channel channel, the real-time signal processor, and the integrated secondary power supply into one unit.

[0014] The two-dimensional active phased array antenna adopts a chip-type low-profile two-dimensional phased array system full array design to transmit and receive radar radio frequency signals.

[0015] The broadband common-aperture antenna consists of an array of eight broadband antennas with a common aperture. It adopts a spatial spectrum estimation direction finding system and has passive direction finding and automatic positioning functions, meeting the requirements of multi-polarization reception.

[0016] The multi-channel up-converts the transmitted signal from the real-time signal processor and sends it to the two-dimensional active phased array antenna for transmission. It also down-converts the received radio frequency signal and sends it to the real-time signal processor for signal acquisition.

[0017] The real-time signal processor is responsible for system control functions such as radar signal generation, acquisition and processing of transmit / receive signals, image compression, and data transmission.

[0018] The integrated secondary power supply includes a transmitting power supply and an electrical power supply. The transmitting power supply isolates and converts the carrier power supply into the voltage required by the two-dimensional active phased array antenna, and the electrical power supply isolates and converts the carrier power supply into the voltage required by the real-time signal processor.

[0019] Furthermore, in this invention, the aforementioned two-dimensional active phased array antenna is configured as an octagonal circular-sided cylindrical structure. The top surface of the two-dimensional active phased array antenna is provided with a two-dimensional phased array antenna surface, and the eight sides of the two-dimensional active phased array antenna are provided with threaded interfaces. The threaded interfaces are used for uniformly distributing and mounting the broadband common-aperture antenna in a ring.

[0020] Furthermore, in this invention, the aforementioned broadband common-aperture antenna includes eight broadband antenna elements. After installation, the broadband antenna is lower than the array surface of the two-dimensional active phased array antenna, and the radio frequency output interface of the broadband common-aperture antenna is provided with a wire shield.

[0021] Furthermore, in this invention, the aforementioned multi-channel includes a transceiver channel module, a receiving channel module, and a frequency synthesis module; the frequency synthesis module is mounted on top of the transceiver channel module via an earpiece, and the transceiver channel module and the receiving channel module are respectively mounted on the top and bottom of the real-time signal processor.

[0022] Furthermore, in this invention, the real-time signal processor described above is provided with a 3U-VPX board and a cold plate. The 3U-VPX board is disposed on the cold plate, a wedge-shaped locking mechanism is provided on the side of the cold plate, an opening and pulling structure is provided at the tail of the cold plate, and a guide module is provided at the front end of the cold plate.

[0023] Furthermore, in this invention, the 3U-VPX board described above is encapsulated with silicone, the top surface of the power consumption chip of the 3U-VPX board is exposed, and the cold plate is attached to it by a thermal pad, and the cold plate is provided with fins.

[0024] Furthermore, in this invention, the aforementioned transmitting power module and the electrical power module are respectively placed on both sides of the real-time signal processor, arranged symmetrically and conformally.

[0025] Furthermore, in this invention, the cross-sections of the aforementioned transmitting power module and the electrical power module are arc-shaped, and the outer surfaces of the transmitting power module and the electrical power module are provided with arc-shaped grooves and heat dissipation fins, and both are encapsulated with thermally conductive adhesive.

[0026] Furthermore, in this invention, the inclined bracket of the integrated machine structure described above is provided with a window structure to achieve centralized management of the interfaces;

[0027] The flange is provided with an annular notch and an oblong hole to allow space for cable exit.

[0028] The arc-shaped connecting plate is fastened to the flange and the integrated secondary power supply. The outer contour of the two-dimensional active phased array antenna adopts a rounded edge design to adapt to the radome installation.

[0029] Secondly, the present invention provides an application of the aforementioned composite antenna radar system, characterized in that the composite antenna radar system is used for target detection, tracking, direction finding and positioning in an electromagnetic environment, and is used for airborne, missile-borne, vehicle-borne and shipborne radar detection platforms.

[0030] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0031] 1. The octagonal cylindrical antenna and the loop broadband antenna achieve a deep conformal and shared aperture, significantly reducing the size and integrating the dual capabilities of phased array active detection and broadband passive direction finding. The antenna adopts an octagonal cylindrical structure with the antenna array on the top; the broadband antenna is conformally arranged in a loop array on the side of the antenna, achieving a high degree of reuse of physical space (i.e., "shared aperture"), significantly reducing the overall size. Functionally, it integrates the multi-target, beam agile detection capabilities of the phased array antenna with the high-gain, high-precision passive direction finding and positioning capabilities of the broadband antenna.

[0032] 2. The three-dimensional layout enhances space utilization, with centralized interface management, convenient assembly, adjustment, and maintenance, and an aerodynamic shape that adapts to fairing installation. Through structural components such as angled brackets, window panels, flanges, and curved connecting plates, the two-dimensional phased array antenna, broadband antenna, multi-channel channel, real-time signal processor, and integrated secondary power supply are organically combined into a single integrated structure. This structure not only improves the system's integration but also greatly facilitates assembly, adjustment, and maintenance, shortening the maintenance cycle, through reserved wiring holes and centralized interface management windows.

[0033] 3. A combination of phase change heat absorption, thermally conductive adhesive potting, cold plate heat dissipation, EH-type vibration dampers, and circuit board potting solutions adapt to high-temperature and high-vibration environments. This invention provides a multi-layered and targeted thermal management and vibration reduction solution. In terms of thermal management, phase change cooling is incorporated into the antenna for typical operating conditions, combined with multiple heat dissipation paths such as thermally conductive adhesive and cold plate conduction to ensure internal heat dissipation. Regarding vibration control, high-efficiency vibration dampers are equipped for the core processing system, and other relatively fixed subsystems are potted. These measures effectively reduce vibration response, prevent internal heat accumulation, and ensure system reliability under harsh environments such as high temperature and high impact.

[0034] 4. The 3U-VPX architecture board is interchangeable, and the separate power supply allows for independent maintenance, reducing the total lifecycle cost. This invention uses a standardized signal processor and a separate power supply architecture, offering excellent versatility and reliability. The real-time signal processor adopts a standard 3U-VPX architecture, ensuring good board interchangeability and reducing subsequent maintenance and upgrade costs. Combined with a guiding, locking, and unloading structure, it facilitates easy assembly and disassembly.

[0035] 5. Physical separation of high and low power supplies suppresses conducted and radiated interference, improving system stability. The integrated secondary power supply adopts a split architecture, with the transmitting power supply and electrical power supply arranged separately. Compared with the integrated design, this simplifies the design process, reduces electromagnetic interference between high-power transmitting and low-power equipment, improves the system's power supply stability and reliability, and facilitates independent maintenance. Attached Figure Description

[0036] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0037] Figure 1 A schematic diagram of the overall structure of the composite antenna radar system of this invention;

[0038] Figure 2 A schematic diagram of the composite mounting structure of the two-dimensional active phased array antenna and the broadband co-aperture antenna of the present invention;

[0039] Figure 3 Schematic diagram of multi-channel channel structure decomposition of the present invention;

[0040] Figure 4 Schematic diagram of the real-time signal processor structure of this invention;

[0041] Figure 5 Schematic diagram of the integrated secondary power supply structure of this invention;

[0042] Figure 6 Exploded view of the integrated structure of this invention;

[0043] Figure 7 A schematic diagram of the centralized interface management of this invention.

[0044] The attached diagram shows the markings and corresponding component names:

[0045] 100 - Two-dimensional active phased array antenna; 101 - Two-dimensional phased array antenna array surface; 102 - Control component; 103 - Mounting lug; 104 - Positioning post; 105 - External interface surface;

[0046] 200 - Wideband common aperture antenna; 201 - Wideband antenna; 202 - RF interface; 203 - Wire shield;

[0047] 300 - Multi-channel channel; 301 - Frequency integration module; 3011 - Internal plug-in connector; 3012 - Frequency integration module front-end interface; 3013 - Frequency integration module back-end interface; 302 - Transceiver channel module; 3021 - Transceiver channel module mounting ears; 3022 - Transceiver channel module front-end interface; 3023 - Transceiver channel module back-end interface; 303 - Receiver channel module; 3031 - Receiver channel module mounting ears; 3032 - Receiver channel module front-end interface; 3033 - Receiver channel module back-end interface;

[0048] 400 - Real-time signal processor; 401 - Standard 3UVPX board assembly; 4011 - Board; 4012 - Pull-out structure; 4013 - Cold plate; 4014 - Locking mechanism; 4015 - Guide module; 402 - Signal acquisition board; 403 - Signal acquisition board; 404 - RF cable; 405 - Motherboard; 406 - External interconnection interface; 407 - External interconnection interface; 408 - Chassis structure; 4081 - Front panel; 4082 - Side panel; 4083 - Mounting lugs; 4084 - Base plate; 4085 - Rear panel; 4086 - Pressure strip; 409 - EH type vibration damper; 410 - Front-end interface;

[0049] 500 - Integrated secondary power supply; 501 - Transmitting power supply; 5011 - Mounting lug; 5012 - Positioning post; 5013 - Arc-shaped groove; 5014 - Input interface; 5015 - Output interface; 5016 - Heat dissipation fins; 5017 - Side plate; 502 - Electrical power supply;

[0050] 600 - Integrated machine structure; 601 - Slanted bracket; 6011 - Window structure; 6012 - Reinforcing rib; 6013 - Inner support ear; 6014 - Cable passage hole; 6015 - Outer support ear; 602 - Window panel; 603 - Flange; 6031 - Integrated secondary power supply mounting hole; 6032 - Annular notch; 6033 - Interface plate mounting structure; 6034 - Waist-shaped elongated hole; 6035 - Mounting ear; 604 - Interface plate; 605 - Arc-shaped connecting plate; 6051 - Front face of connecting plate; 6052 - Rear face of connecting plate; 6053 - Wing plate; 606 - Cover plate. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments and accompanying drawings. The illustrative embodiments and descriptions of this invention are for explanation only and are not intended to limit the invention. The following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0052] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0053] Example

[0054] This embodiment provides a composite antenna radar system. The entire system is an integrated cylindrical conformal structure. The outer contour edges of the two-dimensional active phased array antenna 100 are rounded and fitted with a radome for mounting. From front to back, the system consists of: the two-dimensional active phased array antenna 100, a broadband common-aperture antenna 200, a multi-channel channel 300, a real-time signal processor 400, and a comprehensive secondary power supply 500. All subsystems are securely integrated into the integrated structure 600. After assembly, the system's center of gravity coincides with the carrier axis, and its vertical symmetry plane coincides with the carrier's vertical symmetry plane, ensuring installation stability and aerodynamic balance.

[0055] Combination Figure 1 , Figure 2 and Figure 7 As shown, in this embodiment, the two-dimensional active phased array antenna 100 is located at the front end of the entire system. It adopts a chip-type low-profile two-dimensional active phased array design with a full array structure. It is responsible for transmitting and receiving radar radio frequency signals and adjusting the beam direction. It uses multi-channel, wide-bandwidth, and wide-angle scanning to achieve active detection and tracking. The two-dimensional active phased array antenna 100 consists of a two-dimensional phased array antenna surface 101 and a control component 102. The main body is an octagonal cylindrical structure. The two-dimensional phased array antenna surface 101 on the top surface achieves wide-bandwidth, wide-angle scanning, and beam agile active detection. Threaded interfaces are provided on the eight sides for mounting broadband common-aperture antennas 200.

[0056] The two-dimensional active phased array antenna 100 is internally filled with phase-change heat-absorbing material and encapsulated with thermally conductive adhesive, achieving both efficient heat dissipation and vibration protection. Two positioning pins are located at the bottom for precise positioning with the inclined bracket 601, secured by six screws. The interface is designed as a right-angled triangular prism structure, with its hypotenuse fitting against the base of the octagonal round-sided prism structure. The long right-angled side is perpendicular to the carrier axis, and the short right-angled side serves as the interface surface. The acute angle of the right-angled triangular prism structure's cross-section is the same as the tilt angle of the inclined bracket 601, ensuring that the interface surface is parallel to the carrier's horizontal plane of symmetry. The power supply interface, RF interface 202, and data interface all extend upwards.

[0057] Combination Figure 1 and Figure 2 As shown, in this embodiment, the broadband common-aperture antenna 200 consists of eight broadband antenna elements 201. Employing a common-aperture array and spatial spectrum estimation direction finding system, it achieves high antenna gain and a large electrical power beamwidth, providing passive direction finding and automatic positioning capabilities, and fulfilling multi-polarization reception requirements. The eight elements are evenly distributed in a ring along the side of the two-dimensional active phased array antenna 100, and are installed slightly below the phased array antenna surface to improve space utilization. A cable shield 203 is added to the RF cable outlet interface for protection, safeguarding the cables and optimizing the appearance. This layout achieves common-aperture spatial reuse, balancing active phased array detection and broadband passive direction finding, and improving target acquisition capabilities in complex electromagnetic environments.

[0058] Combination Figure 1 and Figure 3 As shown, in this embodiment, the multi-channel channel 300 includes a frequency synthesis module 301, a transceiver channel module 302, and a receiving channel module 303. The multi-channel channel 300 is responsible for up-converting the analog transmission signal sent by the real-time signal processor 400 to the phased array antenna for transmission, and simultaneously down-converting the received radio frequency signal and sending it to the real-time signal processor 400 for signal acquisition.

[0059] The frequency integration module 301 is mounted on top of the transceiver channel module 302 via lugs and connected together with four screws. Its communication interface consists of a connector socket located at the bottom of the frequency integration module 301 and a connector plug located at the top of the transceiver module; installation completes the connection. The power supply and data interfaces of the frequency integration module 301 are located at the front end, while the RF interface 202 is located at the rear end.

[0060] Furthermore, the transceiver channel module 302 is mounted on top of the real-time signal processor 400 via lugs and connected by four screws. The lug positions are spaced apart from the lug mounting positions of the real-time signal processor 400, providing sufficient space for installation and operation. The power supply interface, data interface, and part of the RF interface 202 connecting to the two-dimensional active phased array antenna 100 of the transceiver channel module 302 are designed at the front end; the remaining RF interfaces 202 are designed at the rear end. The receiver channel module 303 is mounted on the bottom of the real-time signal processor 400 via lugs and connected by four screws. The lug positions are spaced apart from the lug mounting positions of the real-time signal processor 400, providing sufficient space for installation and operation. The power supply interface, data interface, and part of the RF interface 202 connecting to the eight broadband common-aperture antennas 200 of the receiver channel module 303 are designed at the front end; the remaining RF interfaces 202 are designed at the rear end.

[0061] Combination Figure 1 and Figure 4As shown, in this embodiment, the real-time signal processor 400 adopts a standard 3U-VPX architecture, including a chassis 408, a motherboard 405, six 3U-VPX boards 401, a transceiver signal acquisition board 402, a receiver signal acquisition board 403, and an EH type vibration damper 409.

[0062] The 4011 board adopts a standard 3U-VPX architecture design, offering excellent versatility and interchangeability, reducing the difficulty and cost of later maintenance and upgrades. The 4011 board measures 100mm × 160mm and is mounted on the cold plate 4013 via screws. A wedge-shaped locking mechanism 4014 is installed on the side of the cold plate 4013 to ensure quick installation and removal of the 4011 board. A pull-out structure 4012 is designed at the rear of the cold plate 4013 to assist users in effortless insertion and removal of the 4011 board. A guide module 4015 is installed at the front of the 4011 board to ensure positioning accuracy. All 4011 boards are encapsulated with silicone, which reduces vibration response and enhances thermal conductivity. Meanwhile, the top surface of the power consumption chip on the board 4011 is exposed, and the heat is effectively conducted to the cold plate 4013 through the thermal pad. The cold plate 4013 conducts heat to the air through its own fins and to the side panel of the chassis through the locking strip. The side panel of the chassis is designed with large-area fins, which optimizes the heat conduction path and avoids the accumulation of internal heat.

[0063] Furthermore, the 3U-VPX board 4011 includes a transceiver signal acquisition board 402 and a receiver signal acquisition board 402, which are respectively arranged on the top and bottom layers of the chassis. It preprocesses the raw echo data of the transceiver channel module 302 and the receiver channel module 303, and lays out the external radio frequency interface. Structurally, it facilitates the connection between the acquisition board and the channel module through the radio frequency cable 404 assembly.

[0064] Furthermore, the motherboard 405 provides power supply voltage, data transmission and other interface interconnections for the five groups of 3U-VPX boards, and also provides external interconnection interface 406, which is a key module for low-speed interface control, data transmission and board connection in the entire radar system.

[0065] Furthermore, the front panel 4081 of the chassis is mounted on the motherboard 405. The edge of this panel has recessed slots for mounting connector sockets, which connect to the power and data interfaces of the motherboard 405. After installation, the sockets do not protrude from the cross-sectional outline of the real-time signal processor 400, avoiding interference during assembly and disassembly. The lower surface of the front panel 4081 is sloped to avoid obstructing the two-dimensional active phased array antenna 100 and prevent interference.

[0066] Furthermore, the rear panel 4085 of the chassis is designed with a pressure strip 4086 for clamping and preventing the RF connectors on the transceiver signal acquisition board 402 and the receiver signal acquisition board 402 from coming off. Meanwhile, the top and bottom of the chassis have four mounting lugs, each equipped with an EH-type vibration damper 409, symmetrically arranged and mounted on the flange 603 from back to front. This achieves a vibration reduction efficiency of 50%, effectively reducing the vibration response of the real-time signal processor 400 and its associated multi-channel 300. After installation, the real-time signal processor 400 is located in the central space of the carrier, with its axis essentially flush with the carrier's axis.

[0067] Combination Figure 1 and Figure 5 As shown, the integrated secondary power supply 500 is an electronic device that converts the primary voltage of the carrier power supply into the voltage required for the operation of each individual unit in the radar system. Its input terminals have surge suppression and EMI filtering functions, and it is responsible for isolating itself from the carrier power supply. The integrated secondary power supply 500 adopts a split architecture, separating the high-power power consumption of the phased array antenna from the low-power power consumption of other equipment to reduce mutual interference.

[0068] Furthermore, the integrated secondary power supply 500 adopts a split conformal architecture, consisting of a transmitting power supply 501 and an electrical power supply 502. The transmitting power supply 501 isolates and converts the carrier power supply to the voltage required by the two-dimensional active phased array antenna 100, while the electrical power supply 502 isolates and converts the carrier power supply to the voltage required by low-power devices such as the real-time signal processor 400. The integrated secondary power supply 500 has overheat protection and short-circuit protection functions.

[0069] Furthermore, the transmitting power supply 501 and the electrical power supply 502 are respectively located on both sides of the processor, symmetrical about the vertical plane of the carrier, and conformally designed. Their cross-sectional shape is designed as an arc, with the outer diameter being the diameter of the rear end of the entire unit. An arc-shaped groove 5013 is opened on the outer surface for assembly, adjustment, and wiring. Both the transmitting power supply 501 and the electrical power supply 502 are mounted on the flange 603, positioned by two pin holes, and then fastened with three screws. After installation, the arc surface axis coincides with the carrier axis.

[0070] Furthermore, both the transmitting power supply 501 and the electrical power supply 502 are internally encapsulated with thermally conductive adhesive, and their outer surfaces are designed with heat dissipation fins 5016. The internal power consumption devices can effectively transfer heat to the casing via the shortest path. Simultaneously, the front end of the transmitting power supply 501 or the electrical power supply 502 is an output interface 5015, and the rear end is an input interface 5014. Both the transmitting power supply 501 and the electrical power supply 502 are designed with two side plates 5017, each with pre-drilled threaded holes for connecting the arc-shaped connecting plate 605. A threaded hole is also pre-drilled at the rear end for mounting the interface plate 604 and the cover plate 606.

[0071] Combination Figure 1 and Figure 6 As shown, the integrated machine structure 600 consists of an inclined support 601, a window plate 602, a flange 603, an interface plate 604, an arc-shaped connecting plate 605, and a cover plate 606.

[0072] like Figure 6 As shown, the inclined bracket 601 is connected to the flange 603 from front to back via four outer lugs 6015 and four inner lugs 6013. The flange 603 is designed with a countersunk platform that has the same profile as the inclined bracket 601, maintaining a clearance fit, which can both assist in assembly positioning and meet the antenna aperture diameter requirements.

[0073] Furthermore, the inclined bracket 601 features a reinforcing rib 6012 on its side, connected to the inner support lug 6013. This conforms to manufacturing principles, enhancing the structural strength of the inclined bracket 601 while also providing space for installation. The inclined bracket 601 has a window design at the top, exposing all the interface terminals of the two-dimensional active phased array antenna 100 and the top interface of the front panel 4081 of the real-time signal processor 400. The connection ports of both are concentrated in this location, facilitating user connection operations. A cable pass-through hole 6014 is also provided for the broadband antenna 201 to pass cables.

[0074] Furthermore, the window plate 602 is a part that matches the window opening structure of the inclined bracket 601. It is connected by four countersunk screws and conforms to the inclined bracket 601 after installation, thus meeting the antenna aperture diameter requirements.

[0075] Furthermore, flange 603 has pre-drilled threaded holes for mounting the real-time signal processor 400 and the integrated secondary power supply 500, allowing for installation of the processor and power supply from back to front. After installation, the top interface of the front panel 4081 of the real-time signal processor 400 is located within the opening range of the inclined bracket 601. Annular notches 6032 are opened on the inner top and bottom sides of flange 603 to provide front-end cabling space for the transceiver and receiver channels. Similarly, oblong holes 6034 are opened on both the left and right sides of flange 603 to provide front-end cabling space for the transmitting power supply 501 and the electrical power supply 502. Additionally, eight mounting lugs 103 are evenly distributed around the perimeter of flange 603 for connection to the carrier.

[0076] Furthermore, there are two interface boards 604, used to install the external interconnection interface 406 led out from the motherboard 405 of the real-time signal processor 400. The two have the same outer contour shape and mounting interface, differing only in their connector interfaces. They are respectively located at the top and bottom of the rear end of the real-time signal processor 400, and are both mounted on the reserved mounting interfaces of the transmitting power supply 501 and the electrical power supply 502 using four countersunk screws. The interface board 604 exhibits significant deflection when installed alone, but this only occurs during disassembly and debugging. Therefore, it has threaded holes for connection with the cover plate 606. In the assembled state, the cover plate 606 enhances its structural rigidity.

[0077] Furthermore, there are two arc-shaped connecting plates 605, both with identical structures, located at the top and bottom of the rear end of the unit, respectively. The outer diameter of their arc-shaped surfaces is the same as the diameter of the rear cylindrical body of the unit. The inner side of the front face 6051 of the connecting plate fits against the circumferential edge of the flange 603 and is secured with four countersunk screws. The rear face 6052 of the connecting plate has pre-drilled holes for the cover plate 606. Wing plates 6053 are designed on both sides of the arc-shaped connecting plate 605, which are fastened to the side plates 5017 of the transmitting power supply 501 and the electrical power supply 502, and secured with three countersunk screws on each side. After the two arc-shaped connecting plates 605 are installed, the integrated secondary power supply 500 structure and the flange 603 are integrated into one unit, significantly enhancing the structural strength and rigidity of the entire unit.

[0078] Furthermore, the cover plate 606 is installed at the rear end of the integrated processor and is fastened to the transmitting power supply 501, the electrical power supply 502, and the arc-shaped connecting plate 605 with screws, connecting the above parts into a whole and effectively enhancing the structural rigidity of the entire machine. Foam is pasted on the inner side facing the real-time signal processor 400 to provide cushioning in high-speed impact environments.

[0079] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A composite antenna radar system, characterized in that, It includes a two-dimensional active phased array antenna (100), a broadband common aperture antenna (200), a multi-channel channel (300), a real-time signal processor (400), an integrated secondary power supply (500), and an integrated whole structure (600). The two-dimensional active phased array antenna (100) is connected to the broadband common aperture antenna (200) by a common aperture ring uniformly distributed installation method; the integrated whole structure (600) includes a slanted bracket (601), a window plate (602), a flange (603), and an arc-shaped connecting plate (605). The integrated whole structure (600) integrates the two-dimensional active phased array antenna (100), the broadband common aperture antenna (200), the multi-channel channel (300), the real-time signal processor (400), and the integrated secondary power supply (500) into one unit; The two-dimensional active phased array antenna (100) adopts a chip-type low-profile two-dimensional phased array system full array design to transmit and receive radar radio frequency signals; The multi-channel channel (300) up-converts the transmission signal sent by the real-time signal processor (400) and sends it to the two-dimensional active phased array antenna (100) for transmission. It down-converts the received radio frequency signal and sends it to the real-time signal processor (400) for signal acquisition. The real-time signal processor (400) generates radar transmission signals, acquires and processes transmit / receive signals, compresses images, and transmits data. The integrated secondary power supply (500) includes a transmitting power supply (501) and an electrical power supply (502). The transmitting power supply (501) isolates and converts the carrier power supply to the voltage required by the two-dimensional active phased array antenna (100). The electrical power supply (502) isolates and converts the carrier power supply to the voltage required by the real-time signal processor (400).

2. The composite antenna radar system according to claim 1, characterized in that, The two-dimensional active phased array antenna (100) is configured as an octagonal cylindrical structure. The top surface of the two-dimensional active phased array antenna (100) is provided with a two-dimensional phased array antenna array (101). The eight sides of the two-dimensional active phased array antenna (100) are provided with threaded interfaces. The threaded interfaces are used to uniformly install the broadband common aperture antenna (200) in a ring.

3. The composite antenna radar system according to claim 2, characterized in that, The broadband common aperture antenna (200) includes eight broadband antenna (201) units. After installation, the broadband antenna (201) is lower than the array surface of the two-dimensional active phased array antenna (100). The radio frequency output interface of the broadband common aperture antenna (200) is provided with a wire shield (203).

4. The composite antenna radar system according to claim 1, characterized in that, The multi-channel channel (300) includes a transceiver channel module (302), a receiving channel module (303), and a frequency synthesis module (301); the frequency synthesis module (301) is mounted on the top of the transceiver channel module (302) via an earpiece, and the transceiver channel module (302) and the receiving channel module (303) are respectively mounted on the top and bottom of the real-time signal processor (400).

5. The composite antenna radar system according to claim 1, characterized in that, The real-time signal processor (400) is provided with a 3U-VPX board (4011) and a cold plate (4013). The 3U-VPX board (4011) is disposed on the cold plate (4013). A wedge-shaped locking mechanism (4014) is provided on the side of the cold plate (4013). An opening and pulling structure (4012) is provided at the tail of the cold plate (4013). A guide module (4015) is provided at the front end of the cold plate (4013).

6. The composite antenna radar system according to claim 5, characterized in that, The 3U-VPX board (4011) is encapsulated with silicone. The top surface of the power consumption chip of the 3U-VPX board (4011) is exposed and attached to the cold plate (4013) through a thermal pad. The cold plate (4013) is provided with fins to assist in heat dissipation.

7. The composite antenna radar system according to claim 1, characterized in that, The transmitting power supply (501) module and the electrical power supply (502) module are respectively placed on both sides of the real-time signal processor (400) in a symmetrical and conformal arrangement.

8. The composite antenna radar system according to claim 7, characterized in that, The cross-sections of the transmitting power supply (501) module and the electrical power supply (502) module are arc-shaped. The outer surfaces of the transmitting power supply (501) module and the electrical power supply (502) module are provided with arc-shaped grooves (5013) and heat dissipation fins (5016), and the interior of both is filled with thermally conductive adhesive.

9. The composite antenna radar system according to claim 1, characterized in that, The inclined bracket (601) of the integrated whole structure (600) is provided with a window structure (6011) to realize centralized management of the interface; The flange (603) is provided with an annular notch (6032) and an oblong hole (6034) to reserve space for cable exit. The arc-shaped connecting plate (605) is fastened to the flange (603) and the integrated secondary power supply (500). The outer contour of the two-dimensional active phased array antenna (100) adopts a rounded edge design to adapt to the fairing installation.

10. The application of the composite antenna radar system according to any one of claims 1 to 9, characterized in that, The composite antenna radar system is used for target detection, tracking, direction finding and positioning in electromagnetic environments, and is used for airborne, missile-borne, vehicle-borne and shipborne radar detection platforms.

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