Integrated high harmonic circulator module

Abstract

This invention discloses an integrated high-harmonic circulator module, relating to the field of circulator technology. Key technical features include: an integrated frame with a circulator assembly cavity and a filter mounting area; an internal thread on the top of the circulator assembly cavity; a Y-junction circulator core component stacked within the assembly cavity; a high-harmonic elliptic function PCB filter fixedly mounted in the filter mounting area; a threaded cover plate screwed into the internal thread for axially pressing the Y-junction circulator core component; and three RF ports: a P1 input port, a P2 common port, and a P3 isolation port located on the sidewall of the metal cavity. This invention features low insertion loss, high isolation, excellent harmonic suppression capability, and high reliability, making it suitable for high-power, highly integrated microwave system applications.

Description

Technical Field

[0001] This invention relates to the field of circulator technology, specifically to an integrated high harmonic circulator module. Background Technology

[0002] In microwave communication and radar systems, circulators, as key non-reciprocal devices, are often used to achieve unidirectional signal transmission and isolation.

[0003] Traditional circulator modules typically install the circulator and filter separately, resulting in low system integration, large size, and the introduction of additional insertion loss and harmonic interference due to the numerous connection interfaces.

[0004] CN113839164B discloses a high-power Y-junction waveguide circulator. The Y-junction circulator consists of a ferrite-loaded central circular cavity region, three waveguides intersecting at 120-degree angles, and a movable stepped matching structure. This invention can be used for isolation, circling, direction changing, and protection of microwave and radio frequency signals, ensuring good transmission characteristics, low leakage, and low insertion loss. Through a copper heat sink, the ferrite temperature is transferred to the surface of the copper heat sink, causing its temperature to rise. Cooling water is then introduced into the inlet pipe and flows into the copper heat sink, carrying away heat along the water channels. The cooling water is divided into two paths through a connecting pipe, entering two copper water pipes and flowing into the metal heat sink. Finally, it converges back into the connecting pipe and flows out through the outlet pipe connected in the middle of the connecting pipe, thus achieving heat dissipation. The movable stepped matching structure is a stepped matching block of aluminum alloy, which is easy to adjust and gives the port good matching performance. However, heat dissipation under high power operation has always been a bottleneck affecting the stability of device performance. Conventional heat dissipation methods are difficult to meet the thermal management requirements under high-density integration. Therefore, there is an urgent need for a circulator module with high integration and excellent heat dissipation performance to improve the overall system performance and environmental adaptability. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an integrated high harmonic circulator module, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides an integrated high harmonic circulator module.

[0007] An integrated high harmonic circulator module includes, An integrated frame is provided with a circulator assembly cavity and a filter mounting area, and the top of the circulator assembly cavity is provided with an internal thread; The core components of the Y-junction circulator are stacked and arranged within the circulator assembly cavity; A high-order harmonic elliptic function PCB filter is fixedly installed in the filter mounting area. A threaded cover plate, which is screwed into the internal thread, is used to axially press the core component of the Y-junction circulator. The three radio frequency ports are respectively the P1 input port, the P2 common port, and the P3 isolation port, which are located on the side wall of the metal cavity; The P1 input port is electrically connected to the center conductor of the Y-junction circulator core component, the P2 common port is electrically connected to the input end of the high-order harmonic elliptic function PCB filter, and the P3 isolation port is provided with gold wire bonding pads. The signal is transmitted directionally along the non-reciprocal paths P1→P2, P2→P3, and P3→P1. The threaded cover plate includes an inner cover plate and an outer cover plate. The outer cover plate is sleeved outside the inner cover plate and the two are rotatably connected. The inner cover plate and the outer cover plate are connected by a shear pin to achieve synchronous rotation of the inner cover plate and the outer cover plate.

[0008] According to the above technical solution, the core components of the Y-junction circulator include a ceramic dielectric ring, ferrite, a central conductor, a silver-plated iron sheet, a samarium cobalt magnet, and a temperature compensation plate; The ceramic dielectric ring and ferrite combination constitute a gyromagnetic medium; The silver-plated iron sheet is used for magnetic conduction and shielding; The samarium-cobalt magnet is used to provide a bias magnetic field; The temperature compensation plate is used to counteract the drift of the ferrite gyromagnetic properties with temperature. The circulator assembly cavity contains, from bottom to top, a ceramic dielectric ring, ferrite, a central conductor, a silver-plated iron sheet, a samarium cobalt magnet, and a temperature compensation plate.

[0009] According to the above technical solution, the shear pin has a sacrificial groove at the junction of the inner cover plate and the outer cover plate; The top of the inner cover plate has a tool slot.

[0010] According to the above technical solution, the shear pin has a through hole at its center, and the top of the through hole penetrates the inner cover plate and communicates with the atmosphere; A heat dissipation jacket is fitted on the outside of the circulator assembly cavity, which is used to assist in heat dissipation; The heat dissipation jacket includes a heat dissipation shell, a return flow lower sealing ring is provided at the bottom of the heat dissipation shell, an upper cover plate is provided at the top of the heat dissipation shell, a through flow guiding hole is provided on the heat dissipation shell, and two backflow grooves are provided at the top of the heat dissipation shell, the two backflow grooves are symmetrical and spaced apart. One end of the backflow trough is connected to a return flow channel, and a liquid delivery rotary paddle is rotatably connected to the middle of the return flow channel.

[0011] According to the above technical solution, a liquid heat dissipation module is provided at the position of the liquid delivery rotary propeller on the upper cover plate, and the shaft of the liquid delivery rotary propeller is a hollow shaft, the top of which is connected to the liquid heat dissipation module.

[0012] According to the above technical solution, a PCB temperature control device is provided on the top of the high-order harmonic elliptic function PCB filter, and the PCB temperature control device is used to assist the high-order harmonic elliptic function PCB filter in heat dissipation. The PCB temperature control device includes a divergent heat sink, an air guide jacket, a nail coil base, and a rotor. The air guide jacket is fixedly connected to the bottom of the heat sink housing and corresponds to the axis of the liquid delivery rotary propeller. The rotor is rotatably connected to the bottom of the hollow shaft, and a nail coil base is fixedly connected to the corresponding rotor position of the divergent heat sink. The nail coil base is located inside the air guide jacket. A fan blade is fixedly connected to the top outer side of the rotor, and an air outlet is opened in the middle of the rotor. The end of the air outlet located on the inner wall of the rotor is connected to the hollow shaft. The top of the air guide jacket is provided with an air inlet, and the inner ring of the air guide jacket is provided with an air outlet ring.

[0013] According to the above technical solution, there is a gap between the inner cover plate and the outer cover plate, and the gap is filled with thermally conductive sealant. A sealant conveying device is provided between the inner cover plate and the outer cover plate, and the sealant conveying device is used to convey the thermally conductive sealant.

[0014] According to the above technical solution, the sealing conveying device includes an annular groove and a conveying plate; A circular groove is provided on the stepped surface of the outer cover plate, and the circular groove connects the inside and outside of the outer cover plate. A C-shaped elastic retaining ring is engaged in the annular groove. The C-shaped elastic retaining ring is C-shaped and partially protrudes into the inner side of the outer cover plate under the constraint of the annular groove. The conveyor plate is rotatably connected to the outer cover plate at the position corresponding to the C-shaped elastic retaining ring. A boss is provided on the outer side of the conveyor plate, which is used to compress the C-shaped elastic retaining ring. An initial sealing plate is fixedly connected to the top of the conveyor plate. A partition plate is provided on the outer side of the initial sealing plate corresponding to the top opening of the C-shaped elastic retaining ring. The partition plate blocks the top opening of the C-shaped elastic retaining ring when the inner cover plate and the outer cover plate are limited by the shear pin. The inner cover plate is fixedly connected to the initial sealing plate and the conveyor plate.

[0015] According to the above technical solution, an annular return air groove is provided on the top of the outer cover plate. The annular return air groove corresponds to the position of the shear pin, and the annular return air groove connects each annular groove to the other.

[0016] This invention provides an integrated high harmonic circulator module. It has the following advantages: This invention, by setting a circulator assembly cavity and filter mounting area with internal threads on an integrated frame, and combining it with the screw-on connection structure of the threaded cover plate, utilizes a shear pin to achieve synchronous rotation and limiting of the inner and outer cover plates during assembly. When the axial pressure reaches a set value, the shear pin breaks, thereby precisely controlling the clamping force. This structure effectively avoids component damage or poor contact caused by over-pressure or under-pressure, ensuring the positional accuracy and electrical stability of the Y-junction circulator core components in the stacked assembly, and significantly improving the consistency and reliability of the product. This invention integrates a high-order harmonic elliptic function PCB filter into the filter mounting area and adopts a high-frequency PTFE substrate and a microstrip elliptic function topology design, which effectively filters out stray harmonics excited by high-power signals and significantly improves the purity, signal-to-noise ratio and resolution of the system output signal. This invention, through a liquid heat dissipation circuit consisting of a liquid delivery rotary propeller, a C-shaped return channel, a backflow groove, and a return lower sealing ring, combined with a divergent heat dissipation plate, an air guide jacket, and rotor fan blades in the PCB temperature control device, forms a gas-liquid composite forced heat dissipation system. The liquid circulation removes the main heat of the circulator assembly cavity, while the gas is diverted to blow on the PCB filter and the liquid heat dissipation module, achieving efficient and uniform heat dissipation of high-temperature components, preventing performance degradation caused by temperature drift, and ensuring the thermal stability and long-term reliability of the module under continuous high-power operation; This invention integrates a sealing and dispensing device within the gap of the threaded cover plate. Utilizing the relative rotation after the shear pin breaks, the conveying plate compresses a C-shaped elastic retaining ring, automatically injecting thermally conductive sealant between the circulator assembly cavity and the heat dissipation jacket. This structure not only achieves integrated assembly and sealing operations, simplifying the process, but also enhances the thermal conductivity and environmental sealing between interfaces, effectively isolating moisture and contaminants, further improving the module's environmental adaptability and service life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall exploded structure of the present invention; Figure 3 This invention as a whole Figure 2 A schematic diagram of the structure of a partial explosion. Figure 4 This invention as a whole Figure 1 A schematic diagram of a half-section of the structure; Figure 5 This is a schematic diagram of the integral threaded cover plate of the present invention; Figure 6This is a schematic diagram of the unfolded structure of the integral threaded cover plate of the present invention; Figure 7 This is a schematic diagram of the overall shear pin structure of the present invention; Figure 8 This is a schematic diagram of the bottom side structure of the integral threaded cover plate of the present invention; Figure 9 This invention as a whole Figure 4 A schematic diagram of the structure of area A; Figure 10 This is a schematic diagram of the overall heat dissipation jacket of the present invention; Figure 11 This is a schematic diagram of the unfolded structure of the overall heat dissipation jacket of the present invention; Figure 12 This is a schematic diagram of the unfolded structure of the overall PCB temperature control device of the present invention; Figure 13 This invention as a whole Figure 4 A schematic diagram of the structure of area B.

[0018] In the diagram: 1. Filter mounting area; 2. High-order harmonic elliptic function PCB filter; 3. Circulator assembly cavity; 4. PCB temperature control device; 401. Diverging heat sink; 402. Air guide jacket; 403. Nail coil base; 404. Air inlet; 405. Rotor; 406. Exhaust ring; 407. Exhaust port; 408. Fan blade; 5. Heat dissipation jacket; 501. Heat dissipation shell; 502. Return flow lower sealing ring; 503. Top cover plate; 504. Backflow groove; 505. Guide flow hole; 506. Liquid delivery rotary propeller; 507. Return flow channel; 508. Liquid heat dissipation module; 6. Threaded cover plate; 601. Inner cover plate; 602. Outer cover plate; 603. Shear pin; 604. Tool slot; 605. Through hole; 606. Sacrificial groove; 7. Sealing conveyor; 701. Initial sealing plate; 702. Conveying plate; 703. Divider plate; 704. Boss; 705. Circular groove; 706. C-shaped elastic retaining ring; 707. Circular air return groove; 8. Ceramic dielectric ring; 9. Ferrite; 10. Center conductor; 11. Silver-plated iron sheet; 12. Samarium cobalt magnet; 13. Temperature compensation plate. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Please see Figure 1-13 An integrated high harmonic circulator module includes, An integrated frame is provided, on which a circulator assembly cavity 3 and a filter mounting area 1 are provided, and the top of the circulator assembly cavity 3 is provided with an internal thread; The core component of the Y-junction circulator is stacked within the circulator assembly cavity 3; The higher harmonic elliptic function PCB filter 2 is fixedly installed in the filter mounting area 1. Threaded cover plate 6, which is screwed into the internal thread, is used to axially press the core component of the Y-junction circulator. The three radio frequency ports are the P1 input port, the P2 common port, and the P3 isolation port, which are located on the side wall of the metal cavity. The P1 input port is electrically connected to the center conductor 10 of the Y-junction circulator core component. The P2 common port is electrically connected to the input of the high-order harmonic elliptic function PCB filter 2. The P3 isolation port is equipped with a gold wire bonding pad. The signal is transmitted directionally along the non-reciprocal paths P1→P2, P2→P3, and P3→P1. The threaded cover plate 6 includes an inner cover plate 601 and an outer cover plate 602. The outer cover plate 602 is sleeved outside the inner cover plate 601 and the two are rotatably connected. The inner cover plate 601 and the outer cover plate 602 are connected by a shear pin 603 to achieve synchronous rotation.

[0021] The core components of the Y-junction circulator include a ceramic dielectric ring 8, ferrite 9, a central conductor 10, a silver-plated iron sheet 11, a samarium cobalt magnet 12, and a temperature compensation plate 13; The ceramic dielectric ring 8 and ferrite 9 are combined to form a gyromagnetic medium; Silver-plated iron sheet 11 is used for magnetic conduction and shielding; Samarium cobalt magnet 12 is used to provide a bias magnetic field; Temperature compensation plate 13 is used to compensate for the drift of ferrite 9's gyromagnetic properties with temperature. The circulator assembly cavity 3 contains, from bottom to top, a ceramic dielectric ring 8, a ferrite 9, a central conductor 10, a silver-plated iron sheet 11, a samarium cobalt magnet 12, and a temperature compensation plate 13.

[0022] Furthermore, the high-order harmonic elliptic function PCB filter 2 adopts a high-frequency PTFE substrate and a microstrip elliptic function topology design, and is precisely fixed to the filter mounting area by vacuum reflow soldering.

[0023] Furthermore, a 50Ω microstrip transition line is soldered to the P1 input port and coupled to the center conductor 10; The P2 common port is connected to the input of the high-order harmonic elliptic function PCB filter 2 via gold wire bonding, and the filter output is used as the system's clean signal output. The P3 isolation port has a reserved wire bonding pad for direct connection to the low-noise amplifier of the receiving equipment; Furthermore, the forward loss from P1 to P2 is ≤0.4dB, the reverse isolation from P2 to P1 is ≥20dB, the VSWR is ≤1.25, and the high-order harmonic elliptic function PCB filter 2 performs deep notch filtering on the third harmonic and high-order clutter of 2.8~4.2GHz, with a total harmonic suppression of ≥50dB at the system output.

[0024] In use, the non-reciprocal loop characteristic combined with the elliptic function PCB filter achieves ≤0.4dB low insertion loss and ≥20dB reverse isolation, effectively filtering out the second and third harmonics excited by high-power signals and improving the system's receiving signal-to-noise ratio and resolution.

[0025] When installing the core component of the Y-junction circulator, use a tool to rotate the inner cover plate 601. At this time, the shear pin 603 is intact, and the inner layer drives the outer locking sleeve to rotate synchronously. The coarse thread of the outer cover plate 602 is screwed into the circulator assembly cavity 3 and quickly pushed downward to press the internal Y-junction circulator core component. As the force continues to be applied and rotated, when the axial pressure reaches the set value, the shear pin breaks at the preset section. At this time, the rigid connection between the inner cover plate 601 and the outer cover plate 602 is released, the inner cover plate 601 stops rotating and locks in position.

[0026] The shear pin 603 has a sacrificial groove 606 at the junction of the inner cover plate 601 and the outer cover plate 602. The top of the inner cover plate 601 is provided with a tool slot 604.

[0027] The shear pin 603 has a through hole 605 at its center, and the top of the through hole 605 penetrates the inner cover plate 601 and communicates with the atmosphere. Furthermore, by using a hex wrench adapted to the tool slot 604, the inner cover plate 601 can be threaded into the circulator assembly cavity 3 by rotating the tool slot 604, and the core component of the Y-junction circulator can be screwed and clamped.

[0028] Furthermore, the sacrificial groove 606 is used to define the shearing position on the shearing pin 603 to prevent adhesion when the shearing pin 603 breaks.

[0029] A heat dissipation jacket 5 is fitted on the outside of the circulator assembly cavity 3 to assist in heat dissipation; The heat dissipation jacket 5 includes a heat dissipation shell 501. A return flow lower sealing ring 502 is provided at the bottom of the heat dissipation shell 501. An upper cover plate 503 is provided at the top of the heat dissipation shell 501. A through flow guide hole 505 is provided on the heat dissipation shell 501. Two backflow grooves 504 are provided at the top of the heat dissipation shell 501. The two backflow grooves 504 are symmetrical and spaced apart. One end of the backflow trough 504 is connected to the return channel 507, and the middle of the return channel 507 is rotatably connected to the liquid delivery rotary paddle 506.

[0030] Furthermore, the liquid delivery rotary propeller 506 includes a rotary cavity, a turntable, and a slide plate, wherein the rotary cavity is provided with a transition surface at the bend of the return channel 507 to push the slide plate to retract into the turntable.

[0031] A liquid cooling module 508 is provided at the position of the upper cover plate 503 corresponding to the liquid delivery rotary propeller 506. The shaft of the liquid delivery rotary propeller 506 is a hollow shaft, and the top of the hollow shaft is connected to the liquid cooling module 508.

[0032] Furthermore, the return channel 507 is C-shaped, and the liquid delivery rotary propeller 506 is located at the bend of the return channel 507.

[0033] Furthermore, the shaft seal of the liquid delivery rotary propeller 506 is designed.

[0034] In use, the rotation of the liquid delivery rotary propeller 506 drives the slide plate on the liquid delivery rotary propeller 506 to transport the water in the return channel 507 from one end to the other along the outer surface of the rotary cavity. This pushes the liquid in the heat dissipation shell 501, causing it to flow downward from one side. Then, the return lower sealing ring 502 guides the liquid to the other side upward and transports it into the return channel 507 along the backflow groove 504, thereby forming a water circulation to increase the heat dissipation effect of the heat dissipation shell 501.

[0035] Meanwhile, the liquid cooling module 508 also enables the liquid inside the liquid delivery rotary propeller 506 to dissipate heat.

[0036] A PCB temperature control device 4 is provided on the top of the high-order harmonic elliptic function PCB filter 2. The PCB temperature control device 4 is used to assist the heat dissipation of the high-order harmonic elliptic function PCB filter 2. The PCB temperature control device 4 includes a radiating heat sink 401, an air guide jacket 402, a nail coil base 403, and a rotor 405. The air guide jacket 402 is fixedly connected to the bottom of the heat sink housing 501 and corresponds to the axis of the liquid delivery rotary propeller 506. The rotor 405 is rotatably connected to the bottom of the hollow shaft. The nail coil base 403 is fixedly connected to the position of the radiating heat sink 401 corresponding to the rotor 405. The nail coil base 403 is located inside the air guide jacket 402. A fan blade 408 is fixedly connected to the top outer side of the rotor 405. An air outlet 407 is opened in the middle of the rotor 405. One end of the air outlet 407 located on the inner wall of the rotor 405 is connected to the hollow shaft. The top of the air guide jacket 402 is provided with an air inlet 404, and the inner ring of the air guide jacket 402 is provided with an air outlet ring 406.

[0037] Furthermore, the heat sinks on the radiating heat sink 401 are radially distributed along the nail coil base 403.

[0038] Furthermore, the rotation of rotor 405 synchronously drives the hollow shaft to rotate.

[0039] In use, by driving the nail coil base 403, the nail coil base 403 drives the rotor 405 to rotate. The rotation of the fan blade 408 draws the air located outside the exhaust ring 406 into the space between the air guide jacket 402 and the rotor 405. The drawn-in air is then diverted by the exhaust ring 406 and the exhaust hole 407. The gas discharged by the exhaust ring 406 is blown along the heat sink on the surface of the divergent heat sink 401 under the direction of the divergent heat sink 401, thereby realizing the temperature control of the high-order harmonic elliptic function PCB filter 2. The gas discharged through the vent 407 passes through the hollow shaft and blows upwards from the inner wall of the rotor 405 onto the outer surface of the liquid heat dissipation module 508 to accelerate the heat dissipation of the water flow inside the heat dissipation housing 501.

[0040] There is a gap between the inner cover plate 601 and the outer cover plate 602, and the gap is filled with thermally conductive sealant. A sealant conveying device 7 is provided between the inner cover plate 601 and the outer cover plate 602. The sealant conveying device 7 is used to convey the thermally conductive sealant.

[0041] The sealing conveying device 7 includes an annular groove 705 and a conveying plate 702; A circular groove 705 is provided on the stepped surface of the outer cover plate 602, and the circular groove 705 connects the inside and outside of the outer cover plate 602. A C-shaped elastic retaining ring 706 is engaged inside the annular groove 705. The C-shaped elastic retaining ring 706 is C-shaped and partially protrudes into the inner side of the outer cover plate 602 under the constraint of the annular groove 705. The conveyor plate 702 is rotatably connected to the outer cover plate 602 at the position corresponding to the C-shaped elastic retaining ring 706. A boss 704 is provided on the outer side of the conveyor plate 702, which is used to press the C-shaped elastic retaining ring 706. An initial sealing plate 701 is fixedly connected to the top of the conveyor plate 702. A partition plate 703 is provided on the outer side of the initial sealing plate 701 corresponding to the top opening of the C-shaped elastic retaining ring 706. The partition plate 703 blocks the top opening of the C-shaped elastic retaining ring 706 when the inner cover plate 601 and the outer cover plate 602 are limited by the shear pin 603. The inner cover plate 601 is fixedly connected to the initial sealing plate 701 and the conveying plate 702.

[0042] Furthermore, the outer surface of the circulator assembly cavity 3 is provided with a flow guide groove.

[0043] Furthermore, the inner ring of the inner cover plate 601 is provided with a spiral guide groove.

[0044] The top of the outer cover plate 602 is provided with an annular return air groove 707, which corresponds to the position of the shear pin 603. The annular return air groove 707 connects each of the annular grooves 705 to each other.

[0045] Furthermore, when the shear pin 603 breaks, the broken shear pin 603 on the inner cover plate 601 allows outside air to enter between the inner cover plate 601 and the outer cover plate 602 through the through hole 605, and connects with each annular groove 705 through the annular return air groove 707, which facilitates exhaust and improves the flow efficiency of the thermally conductive sealant.

[0046] In use, when the shear pin 603 is subjected to a set shear force and breaks, the inner cover plate 601 continues to rotate while the outer cover plate 602 remains stationary. The rotation of the inner cover plate 601 causes the partition plate 703 to disengage from the top of the C-shaped elastic retainer 706. At this time, the thermally conductive sealant in the gap between the inner cover plate 601 and the outer cover plate 602 flows into the gap inside the C-shaped elastic retainer 706. As the inner cover plate 601 continues to rotate, the boss 704 on the upper side of the conveyor plate 702 will contact the C-shaped elastic retainer 706 and compress the C-shaped elastic retainer. As the ring 706 contracts towards the annular groove 705, the storage area for the thermally conductive sealant in the annular groove 705 decreases, allowing the thermally conductive sealant to be delivered between the circulator assembly cavity 3 and the heat dissipation jacket 5. When the boss 704 disengages from the C-shaped elastic retaining ring 706, the C-shaped elastic retaining ring 706 returns to its original position under elastic action, allowing the thermally conductive sealant to flow in again. As the inner cover plate 601 rotates, the thermally conductive sealant is successively squeezed between the heat dissipation jacket 5 and the circulator assembly cavity 3, thereby improving the thermal conductivity and sealing effect between the heat dissipation jacket 5 and the circulator assembly cavity 3.

[0047] Working principle: The signal is initially guided and isolated through the central conductor 10 of the component with dual heat dissipation mechanism, which transmits signals and suppresses harmonics. The signal output from the P2 common port is filtered by the high-order harmonic elliptic function PCB filter 2. This filter adopts a high-frequency PTFE substrate and microstrip elliptic function topology design, which can perform deep notch filtering on the third harmonic and high-order clutter in the range of 2.8~4.2GHz, thereby outputting a clean signal and making the total harmonic suppression of the system reach ≥50dB. The gold wire bonding pad at the P3 isolation port is used to directly connect to the low-noise amplifier of the receiving equipment to improve the system's receiving signal-to-noise ratio and resolution.

[0048] The inner cover plate 601 of the threaded cover plate 6 is rotated by a tool, and the inner and outer cover plates are rotated synchronously by the shear pin 603, thereby pressing and clamping the core component of the Y-junction circulator inside. When the axial pressure reaches the set value, the shear pin 603 breaks at the preset section, the inner cover plate 601 stops rotating and locks in position, ensuring the consistency and reliability of component clamping. The liquid delivery rotary propeller 506 rotates to drive the slide plate to transport the liquid in the return channel 507, forming a water circulation that flows downward from one side, is guided upward through the return lower sealing ring 502 to the other side, and then returns along the backflow groove 504. This assists the heat dissipation jacket 5 in efficient heat dissipation. In the gas heat dissipation circuit, the rotor 405 of the PCB temperature control device 4 rotates and draws outside air into the air guide jacket 402 through the fan blades 408. After the airflow is split, it blows on the heat sink on the surface of the divergent heat dissipation plate 401 to cool the PCB filter 2. At the same time, another airflow blows upward through the hollow shaft to the outer surface of the liquid heat dissipation module 508, accelerating the heat dissipation of the liquid heat dissipation module. By continuing to rotate the inner cover plate 601 after the shear pin 603 breaks, the sealing conveying device 7 can be triggered. At this time, the boss 704 of the conveying plate 702 squeezes the C-shaped elastic retaining ring 706, and successively squeezes the heat-conducting sealant in the gap between the inner cover plate 601 and the outer cover plate 602 to the space between the circulator assembly cavity 3 and the heat dissipation jacket 5, which further improves the heat conduction effect and sealing performance.

[0049] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An integrated high harmonic circulator module, comprising: The application relates to a Y junction circulator, which comprises the following parts: an integrated frame, wherein a circulator assembly cavity (3) and a filter mounting area (1) are arranged on the integrated frame, the top of the circulator assembly cavity (3) is internally threaded; a Y junction circulator core assembly, which is arranged in the circulator assembly cavity (3) in a laminated mode; a high-harmonic elliptic function PCB filter (2), which is fixedly arranged in the filter mounting area (1); a threaded cover plate (6), which is screw-coupled with the internal thread and is used for axially pressing the Y junction circulator core assembly; three radio frequency ports, namely a P1 input port arranged on the side wall of the metal cavity, a P2 common port and a P3 isolation port; the P1 input port is electrically connected to the center conductor (10) of the Y junction circulator core assembly, the P2 common port is electrically connected to the input end of the high-harmonic elliptic function PCB filter (2), and a gold wire bonding pad is arranged at the P3 isolation port; signals are directionally transmitted along non-reciprocal paths P1-P2, P2-P3 and P3-P1; the threaded cover plate (6) comprises an inner cover plate (601) and an outer cover plate (602), the outer cover plate (602) is arranged outside the inner cover plate (601) and is rotationally connected with the inner cover plate (601), and the inner cover plate (601) and the outer cover plate (602) are synchronously rotated through a shear pin (603) in a plug-in mode.

2. The integrated high harmonic circulator module of claim 1, wherein: the Y junction circulator core assembly comprises a ceramic dielectric ring (8), a ferrite (9), a center conductor (10), a silver-plated iron sheet (11), a samarium-cobalt magnet (12) and a temperature compensation sheet (13); the ceramic dielectric ring (8) and the ferrite (9) are combined to form a gyromagnetic medium; the silver-plated iron sheet (11) is used for magnetic conduction and shielding; the samarium-cobalt magnet (12) is used for providing a bias magnetic field; the temperature compensation sheet (13) is used for offsetting the temperature drift of the gyromagnetic characteristic of the ferrite (9); the ceramic dielectric ring (8), the ferrite (9), the center conductor (10), the silver-plated iron sheet (11), the samarium-cobalt magnet (12) and the temperature compensation sheet (13) are sequentially arranged in the circulator assembly cavity (3) from bottom to top.

3. The integrated high harmonic circulator module of claim 1, wherein: sacrificial grooves (606) are formed in the junction of the inner cover plate (601) and the outer cover plate (602) corresponding to the shear pin (603); a tool groove (604) is formed in the top of the inner cover plate (601); a through hole (605) is formed in the center of the shear pin (603), the top of the through hole (605) penetrates the inner cover plate (601) and is in communication with the atmosphere.

4. The integrated high-harmonic circulator module of claim 1, wherein: a heat dissipation jacket (5) is arranged outside the circulator assembly cavity (3), and the heat dissipation jacket (5) is used for assisting heat dissipation. The heat dissipation jacket (5) comprises a heat dissipation shell (501), the bottom of the heat dissipation shell (501) is provided with a backflow lower sealing ring (502), the top of the heat dissipation shell (501) is provided with an upper cover plate (503), the heat dissipation shell (501) is provided with a through flow guide through hole (505), and the top of the heat dissipation shell (501) is provided with two backflow grooves (504) which are symmetrical and spaced. One end of the backflow groove (504) is communicated with a backflow channel (507), and the middle part of the backflow channel (507) is rotatably connected with a liquid sending rotary paddle (506).

5. The integrated high-harmonic circulator module of claim 4, wherein: The upper cover plate (503) is provided with a liquid heat dissipation module (508) at the position corresponding to the liquid sending rotary paddle (506), the rotating shaft of the liquid sending rotary paddle (506) is a hollow shaft, and the top of the hollow shaft is communicated with the liquid heat dissipation module (508).

6. The integrated high-harmonic circulator module of claim 5, wherein: The top of the high-harmonic elliptic function PCB filter (2) is provided with a PCB temperature control device (4) for assisting the high-harmonic elliptic function PCB filter (2) to dissipate heat. The PCB temperature control device (4) comprises a divergent heat dissipation plate (401), an air guide jacket (402), a nail coil base (403) and a rotor (405), the air guide jacket (402) is fixedly connected to the bottom of the heat dissipation shell (501) and corresponds to the axis of the liquid sending rotary paddle (506); The rotor (405) is rotatably connected to the bottom of the hollow shaft, the nail coil base (403) is fixedly connected to the position of the divergent heat dissipation plate (401) corresponding to the rotor (405), and the nail coil base (403) is located on the inner side of the air guide jacket (402); The top outer side of the rotor (405) is fixedly connected with a fan blade (408), the middle part of the rotor (405) is provided with an air outlet hole (407), and one end of the air outlet hole (407) in the inner wall of the rotor (405) is communicated with the hollow shaft; The top of the air guide jacket (402) is provided with an air inlet hole (404), and the inner ring of the air guide jacket (402) is provided with an air outlet ring (406).

7. The integrated high harmonic circulator module of claim 4, wherein: There is a gap between the inner cover plate (601) and the outer cover plate (602), and the gap is filled with heat-conducting sealing glue, a sealing glue conveying device (7) is arranged between the inner cover plate (601) and the outer cover plate (602), and the sealing glue conveying device (7) is used for conveying the heat-conducting sealing glue. The sealing glue conveying device (7) comprises a circular groove (705) and a conveying plate (702). The step surface of the outer cover plate (602) is provided with the circular groove (705), and the circular groove (705) communicates the inside and outside of the outer cover plate (602); The C-shaped elastic clamping ring (706) is clamped in the circular groove (705), the C-shaped elastic clamping ring (706) is C-shaped, and part of the C-shaped elastic clamping ring (706) protrudes into the inner side of the outer cover plate (602) under the constraint of the circular groove (705). The conveying plate (702) is rotationally connected at a position corresponding to the C-shaped elastic snap ring (706) of the outer cover plate (602), an outer side of the conveying plate (702) is provided with a boss (704), and the boss (704) is used for extruding the C-shaped elastic snap ring (706); A top of the conveying plate (702) is fixedly connected with an initial sealing plate (701), an outer side of the initial sealing plate (701) is provided with a partition plate (703) corresponding to a top opening of the C-shaped elastic snap ring (706), and the partition plate (703) blocks the top opening of the C-shaped elastic snap ring (706) in a state that the inner cover plate (601) and the outer cover plate (602) are limited by the shear pin (603). The inner cover plate (601) is fixedly connected with the initial sealing plate (701) and the conveying plate (702).

8. The integrated high-harmonic circulator module of claim 7, wherein: A top of the outer cover plate (602) is provided with an annular air return groove (707), the annular air return groove (707) corresponds to a position of the shear pin (603), and the annular air return groove (707) communicates the circular grooves (705) with each other.

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