X-band quadrant network synthesizer

Abstract

The utility model belongs to the technical field of microwaves, and particularly discloses an X-waveband quadrant network synthesizer, which comprises a shell, a plurality of groups of partition plates are arranged in the shell, a plurality of transceiving channels are formed by two adjacent partition plates, the shell comprises a bottom plate, a plurality of heat dissipation channels are arranged in the bottom plate, and the heat dissipation channels are communicated with the bottom plate. Each heat dissipation channel is filled with a heat dissipation working medium, heat dissipation teeth are arranged at the two ends of each heat dissipation channel, and heat dissipation fans are arranged at the tops of the heat dissipation teeth. According to the utility model, the plurality of heat dissipation channels are arranged in the bottom plate, and the heat dissipation channels are filled with the heat dissipation working medium, so that heat can be effectively prevented from being gathered on the bottom plate, and the heat dissipation efficiency is improved by arranging the heat dissipation teeth at the two ends of the heat dissipation channels and arranging the heat dissipation fan above the heat dissipation teeth.

Description

Technical Field

[0001] The utility model belongs to the field of microwave technology, and particularly relates to an X-band quadrant network synthesizer. Background Art

[0002] The quadrant network synthesizer plays a vital role in phased array radar. During transmission, the transmission signal from the transmitter is distributed by the quadrant network device to the excitation signal and sent to the T / R components of the subsequent stage. When the radar is in the receiving state, the receiving signal is synthesized by the quadrant network device into a sum beam and an azimuth difference beam and sent to the receiver. The bandwidth, amplitude and phase consistency, and sum and difference isolation of the quadrant network device directly affect the performance of the phased array radar, such as antenna gain, receiving zero depth, and angle measurement and ranging accuracy.

[0003] The traditional quadrant network is composed of a magic T, but the structure is too large, difficult to achieve planarization and integration, and the cost is high. With the continuous development of microstrip printing technology, quadrant networks with microstrip structures are widely used. Based on this, a Chinese patent with publication number CN208675245U discloses a microwave broadband instantaneous frequency measurement receiver, which is fixed and installed through a pre-opened fixing groove, reducing the size of the receiver and saving costs. However, in this solution, due to the influence of the receiver's own working power, working time, and receiver housing structure, there are problems of heat accumulation and poor heat dissipation. Utility Model Content

[0004] The utility model aims to overcome the defect of poor heat dissipation effect in the prior art and provide an X-band quadrant network synthesizer.

[0005] The utility model provides an X-band quadrant network synthesizer, comprising a shell, wherein a plurality of groups of partition plates are arranged inside the shell, wherein two adjacent partition plates form a plurality of transceiver channels, wherein each transceiver channel is provided with at least a power divider, an attenuator, an amplifier and a radio frequency switch; wherein the shell comprises a bottom plate, wherein a first side plate is arranged on two opposite sides of a group of the bottom plate, and a second side plate is arranged on two opposite sides of another group of the bottom plate, wherein the two first side plates and the two second side plates are of equal height, and a top plate is arranged on the top of the first side plate and the second side plate;

[0006] A plurality of heat dissipation channels are arranged inside the bottom plate, each of which is filled with a heat dissipation medium, and heat dissipation teeth are arranged at both ends of the heat dissipation channel, and a heat dissipation fan is arranged on the top of the heat dissipation teeth;

[0007] A hollow mounting groove is provided at the bottom of the second side plate, and a partition is provided in the middle of the hollow mounting groove for dividing the hollow mounting groove into an upper mounting groove and a lower mounting groove, the heat dissipation teeth are connected to the lower mounting groove, and the heat dissipation fan is connected to the upper mounting groove.

[0008] A further solution is that first clamping plates are arranged on both sides of the bottom plate, a first clamping slot is opened at the bottom of the first side plate, and the first clamping slot is connected to the first book search clamping plate.

[0009] A further solution is that both ends of the first side plate and the second side plate are provided with rectangular grooves, and the rectangular grooves of two adjacent first side plates and the second side plates form an L-shaped groove;

[0010] An L-shaped pressing block is arranged in the L-shaped groove, and the L-shaped pressing block is fixedly connected to the L-shaped groove by bolts.

[0011] A further solution is that a plurality of the partition plates form eight transceiver channels on the top of the bottom plate;

[0012] Each transceiver channel is sequentially connected with a first-stage power divider, a first-stage attenuator, a first-stage amplifier, a second-stage power divider, a third-stage power divider, a second-stage attenuator, a second-stage amplifier and a radio frequency switch;

[0013] A wiring port is also provided on the second side panel for connecting the transceiver channel with an external device. The excitation signal of the external device is divided into two signals through a first-level power divider. One signal is attenuated by a first-level attenuator and then amplified to a set power level by a first-level amplifier and then divided into two signals with equal power through a second-level power divider. One signal is divided into two signals with equal power through a third-level power divider. Both signals pass through a second-level attenuator and then amplified by a second-level amplifier and then output the set power level through a radio frequency switch.

[0014] A further solution is that the first-stage power divider includes a power divider, and the first-stage attenuator includes two attenuators, which are respectively connected to the power divider of the first-stage power divider;

[0015] The first-stage amplifier includes two amplifiers, which are respectively connected to the two attenuators of the first-stage attenuator;

[0016] The secondary power divider includes two power dividers, which are respectively connected to the two amplifiers of the primary amplifier;

[0017] The two power dividers of the secondary power divider equally divide the excitation signal into four signals, and the tertiary power divider includes four power dividers, which are respectively connected to the four signals;

[0018] The four power dividers of the three-stage power divider equally divide the excitation signal into eight-way signals, and the two-stage attenuator includes eight attenuators respectively connected to the eight-way signals;

[0019] The secondary amplifier includes eight amplifiers, which are respectively connected to the eight attenuators of the secondary attenuator.

[0020] There are eight radio frequency switches, which are respectively connected to the eight amplifiers of the secondary amplifier.

[0021] A further solution is that the two amplifiers of the first-stage amplifier are of model HMC902LP3, the eight amplifiers of the second-stage amplifier are of model HMC1082, and the radio frequency switch is of model HMC347LP3.

[0022] A further solution is that a second groove is opened on the top of each partition plate, a pressure plate is arranged on the top of the partition plate, and multiple second clip plates are arranged on the bottom of the pressure plate. The position and number of the second clip plates are adapted to the second groove so that the second clip plates are clipped with the second groove.

[0023] A further solution is that a shielding plate is further provided at the center of the top of the bottom plate along the direction of the transceiver channel, the top of the shielding plate is connected to the top plate, and the bottom of the shielding plate is connected to the bottom plate.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] (1) The utility model has multiple heat dissipation channels inside the bottom plate, and the heat dissipation channels are filled with heat dissipation medium, which can effectively prevent heat from accumulating on the bottom plate. Heat dissipation efficiency is improved by arranging heat dissipation teeth at both ends of the heat dissipation channels and arranging a heat dissipation fan above the heat dissipation teeth.

[0026] (2) The housing of the utility model is assembled by splicing multiple plate-like structures, which facilitates the installation and maintenance of components inside the housing.

[0027] (3) The utility model has multiple transceiver channels arranged inside the shell, which has the advantages of small size, high integration, fast transceiver conversion response speed, and good amplitude and phase consistency. Each transceiver channel is separated by a pressure plate and a partition plate to form an independent transceiver channel, thereby improving isolation and reducing signal crosstalk between different transceiver channels. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The following drawings are only used to illustrate and explain the present invention, and are not intended to limit the scope of the present invention, wherein:

[0029] Figure 1 : Schematic diagram of the shell structure of the utility model;

[0030] Figure 2 : Figure 1 Enlarged view of part A in the middle;

[0031] Figure 3 : Schematic diagram of the layout of the sending and receiving channels;

[0032] Figure 4: Component connection diagram of the utility model;

[0033] In the figure: 1. bottom plate; 2. first card plate; 3. partition plate; 4. transceiver channel; 5. first side plate; 6. heat dissipation channel; 7. heat dissipation teeth; 8. heat dissipation fan; 9. second side plate; 10. rectangular groove; 11. L-shaped pressure block; 12. wiring port; 13. first card slot; 14. pressure plate; 15. second card slot; 16. second card plate; 17. top plate; 18. primary power divider; 19. primary attenuator; 20. primary amplifier; 21. secondary power divider; 22. tertiary power divider; 23. secondary attenuator; 24. secondary amplifier; 25. RF switch; 26. shielding plate. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution, design method and advantages of the utility model clearer, the utility model is further described in detail through specific embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0035] like Figure 1 As shown, the utility model provides an X-band quadrant network synthesizer, including a shell, and multiple groups of partition plates 3 are arranged inside the shell, and two adjacent partition plates 3 form 8 transceiver channels 4. The shell includes a bottom plate 1, and a first side plate 5 is arranged on two opposite sides of a group of the bottom plate 1, and a second side plate 9 is arranged on another opposite side of the bottom plate 1. The two first side plates 5 and the two second side plates 9 are of the same height, and a top plate 17 is arranged on the top of the first side plate 5 and the second side plate 9; a plurality of heat dissipation channels 6 are arranged inside the bottom plate 1, and each of the heat dissipation channels 6 is filled with a heat dissipation medium, and heat dissipation teeth 7 are arranged at both ends of the heat dissipation channel 6, and a heat dissipation fan 8 is arranged on the top of the heat dissipation tooth 7; a hollow installation groove is arranged at the bottom of the second side plate 9, and a partition is arranged in the middle of the hollow installation groove, which is used to divide the hollow installation groove into an upper installation groove and a lower installation groove, and the heat dissipation teeth 7 are connected to the lower installation groove, and the heat dissipation fan 8 is connected to the upper installation groove. As shown Figure 4As shown, each transceiver channel 4 is sequentially connected with a first-stage power divider 18, a first-stage attenuator 19, a first-stage amplifier 20, a second-stage power divider 21, a third-stage power divider 22, a second-stage attenuator 23, a second-stage amplifier 24 and a radio frequency switch 25; a wiring port 12 is also provided on the second side panel 9 for connecting the transceiver channel 4 with an external device, and an excitation signal of the external device is divided into two signals by the first-stage power divider 18, one signal is attenuated by the first-stage attenuator 19, and then amplified to a set power level by the first-stage amplifier 20, and then divided into two signals with equal power by the second-stage power divider 21, one of which is divided into two signals with equal power by the third-stage power divider 22, and both signals are amplified by the second-stage attenuator 23 and the second-stage amplifier 24, and then output the set power level by the radio frequency switch 25. Specifically, the first-level power divider 18 includes a power divider, the first-level attenuator 19 includes two attenuators, which are respectively connected to the power divider of the first-level power divider 18; the first-level amplifier 20 includes two amplifiers, which are respectively connected to the two attenuators of the first-level attenuator 19; the second-level power divider 21 includes two power dividers, which are respectively connected to the two amplifiers of the first-level amplifier 20; the two power dividers of the second-level power divider 21 divide the excitation signal into four signals, and the third-level power divider 22 includes four power dividers, which are respectively connected to the four signals; the four power dividers of the third-level power divider 22 divide the excitation signal into eight signals, and the second-level attenuator 23 includes eight attenuators, which are respectively connected to the eight signals; the second-level amplifier 24 includes eight amplifiers, which are respectively connected to the eight attenuators of the second-level attenuator 23; eight radio frequency switches 25 are provided, which are respectively connected to the eight amplifiers of the second-level amplifier 24. In this embodiment, the two amplifiers of the first-stage amplifier 20 are of model HMC902LP3, the eight amplifiers of the second-stage amplifier 24 are of model HMC1082, and the RF switch 25 is of model HMC347LP3.

[0036] like Figure 4As shown, the working principle of the quadrant network synthesizer is that an excitation signal with an input power of 10 dBm is divided into two primary signals through a first stage 18, one primary signal is attenuated by attenuator I of a first-stage attenuator 19, and then amplified to a power level of 16 dBm by amplifier I of a first-stage amplifier 20, and then divided into two secondary signals with equal power by a second-stage power divider 21, wherein one secondary signal is divided into two tertiary signals with equal power by power divider I of a third-stage power divider 22, one tertiary signal is amplified by attenuator I of a second-stage attenuator 23, and then amplified by amplifier I of a second-stage amplifier 24, and then outputted through XS I of a radio frequency switch 25 to form a transmitting branch signal with a power level of 22.5 dBm, and the other tertiary signal is amplified by attenuator II of a second-stage attenuator 23, and then amplified by amplifier II of a second-stage amplifier 24, and then outputted through XS II of a radio frequency switch 25 to form a transmitting branch signal with a power level of 22.5 dBm. By analogy, the input 10dBm excitation signal can be output as 8-channel 22.5dBm transmission branch signals.

[0037] Please continue to refer to Figure 1 In this embodiment, in order to facilitate the inspection and maintenance of the components in the housing, the housing adopts a splicing structure. Specifically, a first card plate 2 is provided on both sides of the bottom plate 1, and a first card slot 13 is provided at the bottom of the first side plate 5. The first card slot 13 is connected to the first card plate 2. Figure 2 As shown, rectangular grooves 10 are provided at both ends of the first side plate 5 and the second side plate 9, and the rectangular grooves 10 of two adjacent first side plates 5 and second side plates 9 form an L-shaped groove; an L-shaped pressing block 11 is arranged in the L-shaped groove, and the L-shaped pressing block 11 is fixedly connected to the L-shaped groove by bolts.

[0038] like Figure 3 As shown, in order to ensure the stability of the signal in each transceiver channel 4 and avoid signal crosstalk between different transceiver channels 4, a second groove 15 is provided on the top of each partition plate 3, a pressure plate 14 is provided on the top of the partition plate 3, and a plurality of second snap-in plates 16 are provided at the bottom of the pressure plate 14. The position and number of the second snap-in plates 16 are adapted to the second groove 15, so that the second snap-in plates 16 snap into the second groove 15. A shielding plate 26 is also provided at the top center of the bottom plate 1 along the direction of the transceiver channel 4. The top of the shielding plate 26 is connected to the top plate 17, and the bottom of the shielding plate 26 is connected to the bottom plate 1.

[0039] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An X-band quadrant network synthesizer, comprising a housing, a plurality of partition plates (3) are arranged inside the housing, two adjacent partition plates (3) form a plurality of transceiver channels (4), each of the transceiver channels (4) is provided with at least a power divider, an attenuator, an amplifier and a radio frequency switch; characterized in that: The shell comprises a bottom plate (1), a first side plate (5) is arranged on two opposite sides of the bottom plate (1), a second side plate (9) is arranged on another opposite side of the bottom plate (1), the two first side plates (5) and the two second side plates (9) are of the same height, and a top plate (17) is arranged on top of the first side plates (5) and the second side plates (9); A plurality of heat dissipation channels (6) are arranged inside the bottom plate (1), each heat dissipation channel (6) is filled with a heat dissipation medium, heat dissipation teeth (7) are arranged at both ends of the heat dissipation channel (6), and a heat dissipation fan (8) is arranged on the top of the heat dissipation teeth (7); The bottom of the second side plate (9) is provided with a hollow installation groove, and a partition is provided in the middle of the hollow installation groove for dividing the hollow installation groove into an upper installation groove and a lower installation groove, the heat dissipation tooth (7) is connected to the lower installation groove, and the heat dissipation fan (8) is connected to the upper installation groove.

2. An X-band quadrant network synthesizer according to claim 1, characterized in that: First card-connecting plates (2) are arranged on both sides of the bottom plate (1), and a first card slot (13) is opened at the bottom of the first side plate (5), and the first card slot (13) is connected to the book-searching first card-connecting plate (2).

3. An X-band quadrant network synthesizer according to claim 2, characterized in that: Both ends of the first side plate (5) and the second side plate (9) are provided with rectangular grooves (10), and the rectangular grooves (10) of two adjacent first side plates (5) and second side plates (9) form an L-shaped groove; An L-shaped pressing block (11) is arranged in the L-shaped groove, and the L-shaped pressing block (11) is fixedly connected to the L-shaped groove by bolts.

4. The X-band quadrant network synthesizer according to claim 1, characterized in that: The plurality of partition plates (3) form eight transceiver channels (4) on the top of the bottom plate (1); Each transceiver channel (4) is sequentially connected with a first-stage power divider (18), a first-stage attenuator (19), a first-stage amplifier (20), a second-stage power divider (21), a third-stage power divider (22), a second-stage attenuator (23), a second-stage amplifier (24) and a radio frequency switch (25); A wiring port (12) is also provided on the second side panel (9) for connecting the transceiver channel (4) with an external device. The excitation signal of the external device is divided into two signals through a first-level power divider (18). One signal is attenuated through a first-level attenuator (19) and then amplified to a set power level through a first-level amplifier (20) and then divided into two signals with equal power through a second-level power divider (21). One signal is divided into two signals with equal power through a third-level power divider (22). Both signals are amplified through a second-level attenuator (23) and then amplified through a second-level amplifier (24) and then output at a set power level through a radio frequency switch (25).

5. An X-band quadrant network synthesizer according to claim 4, characterized in that: The first-stage power divider (18) includes a power divider, and the first-stage attenuator (19) includes two attenuators, which are respectively connected to the power divider of the first-stage power divider (18); The first-stage amplifier (20) comprises two amplifiers, which are respectively connected to the two attenuators of the first-stage attenuator (19); The secondary power divider (21) comprises two power dividers, which are respectively connected to the two amplifiers of the primary amplifier (20); The two power dividers of the secondary power divider (21) equally divide the excitation signal into four signal paths, and the tertiary power divider (22) includes four power dividers respectively connected to the four signal paths; The four power dividers of the three-stage power divider (22) equally divide the excitation signal into eight-way signals, and the two-stage attenuator (23) includes eight attenuators respectively connected to the eight-way signals; The secondary amplifier (24) comprises eight amplifiers, which are respectively connected to the eight attenuators of the secondary attenuator (23). Eight radio frequency switches (25) are provided and are respectively connected to the eight amplifiers of the secondary amplifier (24).

6. An X-band quadrant network synthesizer according to claim 5, characterized in that: The two amplifiers of the first-stage amplifier (20) are of model HMC902LP3, the eight amplifiers of the second-stage amplifier (24) are of model HMC1082, and the radio frequency switch (25) is of model HMC347LP3.

7. The X-band quadrant network synthesizer according to claim 1, characterized in that: A second groove (15) is provided on the top of each partition plate (3), a pressure plate (14) is provided on the top of the partition plate (3), and a plurality of second snap-in plates (16) are provided on the bottom of the pressure plate (14), wherein the position and number of the second snap-in plates (16) are adapted to the second groove (15), so that the second snap-in plates (16) are snap-fitted with the second groove (15).

8. The X-band quadrant network synthesizer according to claim 1, characterized in that: A shielding plate (26) is also provided at the top center of the bottom plate (1) along the direction of the transceiver channel (4); the top of the shielding plate (26) is connected to the top plate (17), and the bottom of the shielding plate (26) is connected to the bottom plate (1).

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