Air-based phased array equipment

Abstract

The utility model discloses a space-based phased array device comprising a pedestal, the middle end of the top of the outer surface of the pedestal is movably connected with a housing, the periphery of the outer surface of the housing is fixedly provided with sixty-four unit antennas, the top of the inner cavity of the housing is fixedly provided with a multichannel T / R multifunctional chip, and the outer surface of the housing is provided with an antenna. And a power supply is fixedly mounted at the bottom of the inner cavity of the shell. According to the utility model, an L-band intermediate-frequency signal input by a receiving system is converted into a Ka-band radio-frequency signal through frequency conversion, and the Ka-band signal is radiated to a free space through the antenna radiation array; the antenna radiation array is used for receiving a Ka wave band signal, outputting the received Ka wave band signal to the phased array receiver, and converting the Ka wave band signal into an L wave band signal to be output to the system; and receiving the position information between the communication objects, completing the calculation of the beam pointing direction between the communication objects, completing the beam pointing alignment of the antenna feed system through amplitude / phase control, and having a wide and narrow beam conversion function.

Description

Technical Field

[0001] The utility model relates to the technical field of air-based phased array equipment, in particular to an air-based phased array equipment. Background Art

[0002] An airborne phased array device utilizes phased array technology. Computer-controlled phase shifters alter the phase relationship between the currents of the radiating elements in the antenna aperture, enabling spatial beam scanning, also known as electronic scanning. This technology allows beam scanning (including the amplitude and phase of power radiation) to be controlled by T / R components, enabling rapid and precise beam pointing. The operating principle of an airborne phased array device is based on phase control and electronic scanning. Key components include the antenna array, phase control, and beamforming. This technology eliminates the need to physically rotate the antenna to scan the target, resulting in very fast scanning speeds and high data update rates, greatly improving radar response speed.

[0003] Current airborne phased array equipment does not have the ability to effectively receive and transmit wide and narrow RF signals during use, and is unable to switch between automatic and manual modes for beam pointing control according to personnel needs, limiting its development and scope of use. Utility Model Content

[0004] The purpose of the utility model is to provide an air-based phased array device.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an airborne phased array device, comprising a base, a shell being movably connected to the middle end of the top of the outer surface of the base, sixty-four-unit antennas being fixedly installed on all four sides of the outer surface of the shell, a multi-channel T / R multi-function chip being fixedly installed on the top of the inner cavity of the shell, a power supply being fixedly installed on the bottom of the inner cavity of the shell, a partition being fixedly connected to the middle end of the inner cavity of the shell, a power divider being fixedly installed on the left end of the top of the partition, a switch matrix being fixedly installed on the right end of the top of the partition, and a radio frequency interface being fixedly installed on the lower end of the front surface of the shell.

[0006] As a preferred solution, the top of the outer surface of the base is fixedly connected to the limit baffle on all four sides, and the lower end of the outer surface of the shell is movably connected to the surface of the limit baffle.

[0007] As a preferred solution, the lower ends of both sides of the outer surface of the base are fixedly connected with mounting plates, and the middle ends of the mounting plates are provided with mounting holes.

[0008] As a preferred solution, both ends of the bottom of the outer surface of the shell are provided with limit slots, the middle end of the top of the base inner cavity is movably connected to a rotating rod through a bearing, the bottom of the rotating rod is fixedly connected to a winding disk, the bottom of the winding disk is fixedly installed with a first bevel gear, a pull rope is wound around the surface of the winding disk, the front surface of the pull rope is fixedly connected to a pull rod, the surface of the pull rod is movably connected to the middle end of the front surface of the base, both ends of the top of the base inner cavity are fixedly connected to a fixing frame, the middle end of the fixing frame is movably connected to a rotating shaft through a bearing, and a second bevel gear is fixedly installed on the side where the two rotating shafts are close to each other, and the second bevel gear is meshed with the first bevel gear.

[0009] As a preferred solution, a spiral guide groove is provided on the surface of the rotating shaft, an L-shaped limiting clamping plate is movably connected between the surface of the rotating shaft and the surface of the limiting clamping groove, a guide block is fixedly connected to the middle end of the L-shaped limiting clamping plate, and the surface of the guide block is movably connected to the surface of the spiral guide groove.

[0010] As a preferred solution, a support shaft is fixedly installed at the middle end of the bottom of the first bevel gear, and the bottom of the support shaft is movably connected to the middle end of the bottom of the base inner cavity through a bearing, and a torsion spring is fixedly connected between the upper end of the support shaft and the bottom of the base inner cavity, and the bottom of the fixing frame is fixedly connected to a guide slide rod, and the lower end of the L-shaped limit clamp is movably connected to the surface of the guide slide rod.

[0011] As a preferred solution, heat dissipation fins are fixedly connected to the four sides of the outer surface of the shell, and the heat dissipation fins are rectangular in shape.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. The utility model receives the L-band intermediate frequency signal input by the receiving system, converts it into a Ka-band radio frequency signal, and radiates the Ka-band signal into free space through the antenna radiation array; receives the Ka-band signal through the antenna radiation array, and outputs the received Ka-band signal to the phased array receiver, converts it into an L-band signal and outputs it to the system; receives the position information between the communication objects, completes the calculation of the beam pointing direction between the communication objects, completes the beam pointing alignment of the antenna feed system through amplitude / phase control, and has the function of wide and narrow beam conversion.

[0014] 2. The utility model can effectively limit the position between the shell and the base by setting the limit baffle, avoiding deviation between the shell and the base, and facilitating the installation of the mounting plate and the mounting hole by personnel, and can drive the reel, the rotating rod and the first bevel gear to rotate under the action of personnel pulling the pull rod and the pull rope to move, so that the reel can gradually unwind the pull rope, and at the same time, the second bevel gear, the rotating shaft and the spiral guide groove can be driven to rotate along the bearing on the fixed frame under the action of the rotation of the first bevel gear, and the spiral guide groove can drive the guide block and the L-shaped limit card to move while the spiral guide groove rotates. The L-shaped limit card is guided by the setting of the guide slide bar, so that the L-shaped limit card is prevented from tilting during the movement, and the setting of the heat dissipation fins facilitates the transfer of heat from the inside of the shell to the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the front cross-sectional structure of the housing of the present invention;

[0017] Figure 3 For this utility model Figure 2 A local enlarged view of point A in FIG;

[0018] Figure 4 This is a schematic diagram of the structure of the fixing frame of the utility model;

[0019] Figure 5 This is a diagram of the antenna feed system of the utility model.

[0020] In the figure: 1. Shell; 2. Sixty-four-element antenna; 3. RF interface; 4. Pull rod; 5. Base; 6. Limit baffle; 7. Mounting plate; 8. Power divider; 9. Multi-channel T / R multi-function chip; 10. Switch matrix; 11. Partition; 12. Power supply; 13. Rotating rod; 14. Torsion spring; 15. Support shaft; 16. First bevel gear; 17. Limiting slot; 18. L-shaped limiting card; 19. Fixed frame; 20. Guide block; 21. Spiral guide groove; 22. Rotating shaft; 23. Guide slide; 24. Pull rope; 25. Reel; 26. Second bevel gear. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0023] Example 1:

[0024] See also Figure 1-Figure 2 As shown, the utility model provides an airborne phased array device, including a base 5, a shell 1 is movably connected to the middle end of the top of the outer surface of the base 5, sixty-four-unit antennas 2 are fixedly installed on all four sides of the outer surface of the shell 1, a multi-channel T / R multifunctional chip 9 is fixedly installed on the top of the inner cavity of the shell 1, a power supply 12 is fixedly installed on the bottom of the inner cavity of the shell 1, a partition 11 is fixedly connected to the middle end of the inner cavity of the shell 1, a power divider 8 is fixedly installed on the left end of the top of the partition 11, a switch matrix 10 is fixedly installed on the right end of the top of the partition 11, and a radio frequency interface 3 is fixedly installed on the lower end of the front surface of the shell 1.

[0025] Overall design

[0026] Antenna array solution

[0027] The Ka-band AIP antenna feed system uses an 8×8 microstrip patch antenna with a total of 64 elements. The four arrays together meet the scanning requirements of 360° in azimuth and ±45° in pitch. The antenna array surface adopts AIP packaging and integrates analog, control and power supply circuits. The antenna unit gain is 5dBi, the array axial gain reaches 23dBi, and the maximum azimuth scanning angle gain is better than 20dBi.

[0028] Ka-band AIP antenna and feeder system solution

[0029] The antenna feed system is composed of a silicon-based multi-channel T / R multi-function chip 9 for phase and amplitude adjustment of the antenna unit, a power synthesis network, control and power supply. The main function of the antenna feed system is to switch the Ka-band microwave signal output by the phased array system transmitter to the corresponding array surface feed link through a microwave switch, and then distribute it to each multi-channel T / R multi-function chip 9 through the power divider on the antenna board. The signal is then fed to the antenna array element port through the amplitude / phase adjustment of the multi-channel T / R multi-function chip 9 to form the required beam.

[0030] According to the overall index requirements, taking into account the maturity and cost-effectiveness of the device, a single channel uses a Ka-band multi-channel T / R multi-function chip 9 with a linear output power of about 17dBm. Each array is arranged with 4×4 multi-channel T / R multi-function chips 9, for a total of 64 channels. Since the system consists of 4 arrays, a total of 64 multi-channel T / R multi-function chips 9 are used, for a total of 256 channels. The four array surfaces use an SP4T switch for switching to achieve signal transmission between channels. The antenna feed system diagram is shown below. Figure 5 shown.

[0031] Wave control solution

[0032] Antenna beam control is the center of antenna control, which mainly completes the initialization of array status, serial communication with the main control computer, calculation and control of array beam control code, reception system timing signal to complete array status switching, and collection and return of Ka-band AIP antenna feed subsystem telemetry information.

[0033] The software and hardware interface between the antenna beam control and the control end can be independently formulated by the antenna subsystem, provided that the system functions and performance are met.

[0034] The 16 multi-channel T / R multi-function chips 9 on each antenna array are divided into 4 groups. Each group of 4 multi-channel T / R multi-function chips 9 completes the control data cascade through the SDI pin and SDO pin to improve the pin usage efficiency. The configuration data within the group uses a shift register to share the SPI bus, and different groups of chips are connected to the FPGA in parallel.

[0035] Ka-band frequency integrated transceiver component solution

[0036] A highly integrated SOC chip is used to complete frequency hopping source generation, signal up-conversion and down-conversion, and the signal frequency agility and mode switching are controlled by FPGA.

[0037] Device Selection

[0038] The multi-channel T / R multi-function chip 9 uses a company's off-the-shelf product as the basic unit, with an operating frequency band of 26.5GHz to 29.5GHz. The multi-channel T / R multi-function chip 9 integrates a complete 4-channel RF unit, including input / output transceiver switch, power amplifier and low noise amplifier, phase shift and attenuation, 4-channel power distribution and synthesis, etc. Its composition block diagram is as follows Figure 5 shown.

[0039] Power divider circuit: realizes the mutual conversion of 1 signal to 16 signals.

[0040] T / R channel: completes the RF transceiver function, and has phase adjustment and amplitude adjustment functions. The channel contains a transceiver multifunctional device and an amplitude and phase control multifunctional device; the multi-channel T / R multifunctional chip 9 is in TDD working mode. According to the chip manual, the transceiver switching time is ≤500ns.

[0041] Power supply control: Provides modulated power for the four T / R channels and codes the attenuation and phase shift states.

[0042] Example 2:

[0043] On the basis of embodiment 1, the present invention is as follows Figure 1-Figure 4As shown, it is disclosed that the top of the outer surface of the base 5 is fixedly connected to the limit baffle 6 on all sides, the lower end of the outer surface of the shell 1 is movably connected to the surface of the limit baffle 6, the lower ends of both sides of the outer surface of the base 5 are fixedly connected to the mounting plates 7, the middle end of the mounting plates 7 is provided with a mounting hole, and both ends of the bottom of the outer surface of the shell 1 are provided with a limit slot 17, the middle end of the top of the inner cavity of the base 5 is movably connected to the rotating rod 13 through a bearing, the bottom of the rotating rod 13 is fixedly connected to the winding disk 25, the bottom of the winding disk 25 is fixedly installed with a first bevel gear 16, the surface of the winding disk 25 is wound with a pull rope 24, the front surface of the pull rope 24 is fixedly connected to the pull rod 4, the surface of the pull rod 4 is movably connected to the middle end of the front surface of the base 5, the two ends of the top of the inner cavity of the base 5 are fixedly connected to the fixing frame 19, the middle end of the fixing frame 19 is movably connected to the rotating shaft 22 through a bearing, and the two rotating shafts 22 are fixed on the side close to each other. A second bevel gear 26 is fixedly installed, and the second bevel gear 26 meshes with the first bevel gear 16. A spiral guide groove 21 is provided on the surface of the rotating shaft 22, and an L-shaped limiting card plate 18 is movably connected between the surface of the rotating shaft 22 and the surface of the limiting card slot 17. The middle end of the L-shaped limiting card plate 18 is fixedly connected to a guide block 20, and the surface of the guide block 20 is movably connected to the surface of the spiral guide groove 21. The middle end of the bottom of the first bevel gear 16 is fixedly installed with a support shaft 15, and the bottom of the support shaft 15 is movably connected to the middle end of the bottom of the inner cavity of the base 5 through a bearing. A torsion spring 14 is fixedly connected between the upper end of the support shaft 15 and the bottom of the inner cavity of the base 5, and the bottom of the fixing frame 19 is fixedly connected to a guide slide 23. The lower end of the L-shaped limiting card plate 18 is movably connected to the surface of the guide slide 23. The outer surface of the shell 1 is fixedly connected with heat dissipation fins all around, and the shape of the heat dissipation fins is rectangular.

[0044] The present invention relates to a method for the present invention to provide a method for the present invention to provide a method for the present invention to provide a method for the present invention to provide a method for the present invention to provide a method for the present invention to provide a method for the present invention to provide a method for the present invention to provide a method for the present invention to provide a method for the present invention to provide a method for the present invention to provide a method for the present invention to provide a method for the present invention to provide a method for the present invention to provide a method for the present invention to provide a method for the present invention to provide The L-shaped limit card 18 is guided by the setting of the guide slide 23, so that the L-shaped limit card 18 is prevented from tilting during the movement, and the heat dissipation fins are provided to facilitate the transfer of heat from the inside of the housing 1 to the outside.

[0045] It is important to note that the configuration and arrangement of the present application, as shown in various exemplary embodiments, are illustrative only. Although only a few embodiments are described in detail in this disclosure, those reading this disclosure will readily appreciate that numerous modifications are possible (e.g., variations in the size, dimensions, structure, shape, and proportions of various components, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without materially departing from the novel teachings and advantages of the subject matter described herein. For example, components shown as integrally formed may be constructed from multiple parts or components, the positions of components may be inverted or otherwise altered, and the nature, number, or position of discrete components may be modified or changed. Therefore, all such modifications are intended to be encompassed within the scope of this invention. The order or sequence of any process or method steps may be altered or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover structures described herein that perform the function described, and not only structural equivalence but also equivalent structures. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0046] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. An airborne phased array device, comprising a base (5), characterized in that: The middle end of the top of the outer surface of the base (5) is movably connected to a shell (1), sixty-four element antennas (2) are fixedly installed on all four sides of the outer surface of the shell (1), a multi-channel T / R multifunctional chip (9) is fixedly installed on the top of the inner cavity of the shell (1), a power supply (12) is fixedly installed on the bottom of the inner cavity of the shell (1), a partition (11) is fixedly connected to the middle end of the inner cavity of the shell (1), a power divider (8) is fixedly installed on the left end of the top of the partition (11), a switch matrix (10) is fixedly installed on the right end of the top of the partition (11), and a radio frequency interface (3) is fixedly installed on the lower end of the front surface of the shell (1).

2. The airborne phased array device according to claim 1, characterized in that: The top of the outer surface of the base (5) is fixedly connected to the limit baffle (6) on all four sides, and the lower end of the outer surface of the shell (1) is movably connected to the surface of the limit baffle (6).

3. The airborne phased array device according to claim 1, characterized in that: The lower ends of both sides of the outer surface of the base (5) are fixedly connected to mounting plates (7), and a mounting hole is provided at the middle end of the mounting plate (7).

4. The airborne phased array device according to claim 1, characterized in that: Both ends of the bottom of the outer surface of the shell (1) are provided with limit slots (17), the middle end of the top of the inner cavity of the base (5) is movably connected to a rotating rod (13) through a bearing, the bottom of the rotating rod (13) is fixedly connected to a winding disk (25), the bottom of the winding disk (25) is fixedly installed with a first bevel gear (16), the surface of the winding disk (25) is wound with a pull rope (24), the front surface of the pull rope (24) is fixedly connected to a pull rod (4), the surface of the pull rod (4) is movably connected to the middle end of the front surface of the base (5), both ends of the top of the inner cavity of the base (5) are fixedly connected to a fixing frame (19), the middle end of the fixing frame (19) is movably connected to a rotating shaft (22) through a bearing, and a second bevel gear (26) is fixedly installed on the side where the two rotating shafts (22) are close to each other, and the second bevel gear (26) is meshed with the first bevel gear (16).

5. The airborne phased array device according to claim 4, characterized in that: A spiral guide groove (21) is provided on the surface of the rotating shaft (22); an L-shaped limiting clamping plate (18) is movably connected between the surface of the rotating shaft (22) and the surface of the limiting clamping groove (17); a guide block (20) is fixedly connected to the middle end of the L-shaped limiting clamping plate (18); and the surface of the guide block (20) is movably connected to the surface of the spiral guide groove (21).

6. The airborne phased array device according to claim 5, characterized in that: A support shaft (15) is fixedly mounted at the middle end of the bottom of the first bevel gear (16), and the bottom of the support shaft (15) is movably connected to the middle end of the bottom of the inner cavity of the base (5) through a bearing. A torsion spring (14) is fixedly connected between the upper end of the support shaft (15) and the bottom of the inner cavity of the base (5), and a guide slide (23) is fixedly connected to the bottom of the fixing frame (19), and the lower end of the L-shaped limiting clamp (18) is movably connected to the surface of the guide slide (23).

7. The airborne phased array device according to claim 1, characterized in that: Heat dissipation fins are fixedly connected to the four sides of the outer surface of the shell (1), and the heat dissipation fins are rectangular in shape.

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