A S-band high-power radio frequency circulator structure

Abstract

The present invention discloses an S-band high-power radio frequency circulator structure, which belongs to the technical field of radio frequency circulators, and includes: a radio frequency circulator assembly for unidirectional transmission of high-frequency signal energy, wherein the radio frequency circulator assembly includes an upper cavity and a lower cavity relatively spliced ​​together; a connector, which is provided with three and respectively installed on the peripheral outer wall of the radio frequency circulator assembly; an inner conductor, which is embedded between the upper cavity and the lower cavity, and the peripheral outer wall of the inner conductor is integrally connected with three bifurcated branches in an annular array, and the free ends of the three bifurcated branches are respectively connected with three connectors; an upper connecting component, which is embedded in the upper cavity and abuts against the outer wall of one side of the inner conductor; and a lower connecting component, which is embedded in the lower cavity and abuts against the back of the inner conductor. The unidirectional transmission characteristics of the present invention reduce signal reflection and interference, and improve the overall efficiency of the system.

Description

Technical Field

[0001] The invention belongs to the technical field of radio frequency circulators, and in particular to an S-band high-power radio frequency circulator structure. Background Art

[0002] The outstanding feature of the RF circulator is that it can only transmit high-frequency signal energy in one direction. The principle of this one-way transmission is due to the use of ferrite gyromagnetic materials. This material produces gyromagnetic properties under the action of an external constant magnetic field, causing the electromagnetic waves propagating in the ferrite to rotate in polarization. When the electromagnetic wave is transmitted in the gyromagnetic ferrite material with an external DC magnetic field, the polarization plane undergoes a Faraday rotation effect. After proper design, the polarization plane of the electromagnetic wave is perpendicular to the grounding resistance plug plate during forward transmission, so the attenuation is very small. During reverse transmission, the polarization plane of the electromagnetic wave is parallel to the grounding resistance plug plate and is almost completely absorbed, controlling the electromagnetic wave to be transmitted in a certain circular direction. This feature of unidirectional transmission of high-frequency signal energy makes the RF circulator widely used in mobile communications, radar systems and other wireless communication systems to transmit and receive signals.

[0003] With the rapid development of wireless communication technology, the demand for RF circulators is growing. Existing RF circulators still have some problems and shortcomings in practical applications, which limit their performance and reliability. For example, the hysteresis loss of ferrite gyromagnetic materials is the main reason for the loss of transmission power during the operation of the circulator. The lost power will be converted into heat to increase the temperature of the inner conductor and ferrite gyromagnetic material. At high temperature, the atomic activity is enhanced to increase the hysteresis loss. The greater the loss, the higher the heat generation. This vicious cycle eventually leads to the burning of the circulator due to excessive temperature. At the same time, small-linewidth ferrite gyromagnetic materials with high magnetic saturation strength can obtain lower hysteresis loss, but their response frequency is narrow and cannot meet the wide frequency requirements of the entire S-band passband. Summary of the invention

[0004] The object of the present invention is to provide an S-band high-power radio frequency circulator structure to solve the problems raised in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an S-band high-power radio frequency circulator structure, comprising:

[0006] A radio frequency circulator assembly, used for unidirectional transmission of high frequency signal energy, the radio frequency circulator assembly comprising an upper cavity and a lower cavity relatively spliced ​​together;

[0007] Connectors, three of which are provided and respectively mounted on the peripheral outer walls of the radio frequency circulator assembly;

[0008] An inner conductor is embedded between the upper cavity and the lower cavity, wherein the outer peripheral wall of the inner conductor is integrally connected with three bifurcated branches in an annular array, and the free ends of the three bifurcated branches are respectively connected with three connectors;

[0009] An upper connecting assembly is embedded in the upper cavity and abuts against an outer wall of one side of the inner conductor;

[0010] The lower connecting component is embedded in the lower cavity and abuts against the back surface of the inner conductor.

[0011] Preferably, the circuit of the inner conductor adopts a Y-shaped center junction, and the center junction is transitioned to the port through an Ω impedance transformation transition zone;

[0012] The extension lines of the three ports of the radio frequency circulator assembly are matched through secondary impedance so that the frequency covers the entire S band.

[0013] Preferably, the upper connecting assembly includes a first permanent magnet and a first magnetic conductive sheet embedded in the upper cavity on a side facing away from the lower cavity, and a first ferrite gyromagnet embedded in the upper cavity on a side close to the lower cavity;

[0014] The first ferrite gyromagnet is directly in contact with the surface of the inner conductor.

[0015] Preferably, the lower connecting assembly includes a second permanent magnet and a second magnetic conductive sheet embedded in the side of the lower cavity facing away from the upper cavity, and a second ferrite gyromagnet embedded in the side of the lower cavity close to the upper cavity;

[0016] The second ferrite gyromagnet is directly in contact with the back surface of the inner conductor.

[0017] Preferably, in this solution, shielding components are provided on the outside of the upper cavity and the lower cavity, and the shielding components are used to transfer heat energy in the entire cavity so that the bottom of the lower cavity can be installed flatly on the radiator of the client machine, and the upper cavity has a heat dissipation rack on the side facing away from the lower cavity.

[0018] Preferably, the shielding component includes a magnetic shielding shell, and the upper cavity and the lower cavity have concave card grooves on opposite sides thereof, the concave card grooves are in a U-shaped structure, the two concave card grooves are relatively spliced ​​together for the clamping of the U-shaped card block, and the surface of each concave card groove is provided with an installation hole.

[0019] In this solution, preferably, the first permanent magnet and the first magnetic conductive sheet are respectively arranged in the mounting holes of the upper cavity;

[0020] The second permanent magnet and the second magnetic conductive sheet are respectively arranged in the mounting holes of the lower cavity, and the magnetic shielding shell is clamped on the outer sides of the first permanent magnet and the second permanent magnet and can clamp the first permanent magnet and the second permanent magnet centripetally.

[0021] In this solution, the upper cavity and the lower cavity are each provided with an embedded groove on one side opposite to the other, and three branch slots are extended around each of the embedded grooves;

[0022] The first ferrite gyromagnet is embedded in the embedded groove of the upper cavity, the second ferrite gyromagnet is embedded in the embedded groove of the lower cavity, the inner conductor is clamped between the first ferrite gyromagnet and the second ferrite gyromagnet, and the three forked branches are respectively arranged in three branch slots.

[0023] Preferably, a rectangular chamber is opened inside one end of the lower cavity, and an anti-loosening auxiliary heat dissipation mechanism is arranged in the rectangular chamber. The anti-loosening auxiliary heat dissipation mechanism can extend to one of the branch slots to dynamically top-connect and support the forked branch. At the same time, a heat dissipation opening is opened on the back side of the lower cavity, and an opening and closing plate is clamped in the heat dissipation opening.

[0024] Preferably, a supporting positioning plate is fixed to an inner wall of one side of the rectangular chamber, and the anti-loosening auxiliary heat dissipation mechanism includes a fastening top column passing through the supporting positioning plate, a block symmetrically welded to the outer wall of the fastening top column close to one end of the upper cavity, a return spring sleeved on the side of the fastening top column at one end of the block, a driving rod hinged to the bottom end of the fastening top column, and a plurality of pull ropes fixed to the free end of the driving rod.

[0025] Compared with the prior art, the technical effects and advantages of the present invention are as follows:

[0026] The S-band high-power RF circulator structure ensures that the RF signal can be efficiently transmitted in the predetermined direction through the optimized design of the first ferrite gyromagnet and the second ferrite gyromagnet, as well as the first permanent magnet, the second permanent magnet and other components. This unidirectional transmission characteristic reduces signal reflection and interference, and improves the overall efficiency of the system; the inner conductor adopts a Y-shaped center junction design, and the center junction is transitioned to the port through a 50Ω impedance transformation transition zone, and the secondary impedance matching is used to cover the entire S-band, ensuring good performance over a wide frequency range.

[0027] Ferrite hysteresis loss and internal conductor transmission loss and reflection loss will all be converted into heat energy. High-power products should give priority to the rapid extraction and dispersion of internal heat energy. The cavity of the product is made of aluminum alloy material with good thermal conductivity. In order to quickly disperse the heat energy generated by the central ferrite gyromagnet to the entire cavity, the ferrite gyromagnet is embedded in the cavity so that the ferrite gyromagnet is in direct and reliable contact with the cavity. In order to effectively transfer heat energy, the magnetic shielding shell is recessed in the cavity so that the bottom of the lower cavity can be installed flatly on the radiator of the client's complete machine. The upper cavity has a heat dissipation gear to increase the heat dissipation area.

[0028] The linkage design of the anti-loosening auxiliary heat dissipation mechanism, when the bifurcated branch is inserted, the fastening top column is squeezed, thereby driving the opening and closing plate to lift up, opening the heat dissipation vents and promoting heat dissipation; when the bifurcated branch is not installed, the reset spring resets the fastening top column, closes the heat dissipation vents and prevents dust from entering. This dynamic adjustment mechanism improves the thermal management efficiency of the equipment under different working conditions. Through the cooperation of the filter and the opening and closing plate, dust and other pollutants are effectively blocked while ensuring heat dissipation, extending the service life of internal components. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] Figure 2 It is a structural schematic diagram of the concave card slot of the present invention;

[0032] Figure 3 It is a structural schematic diagram of the upper connection assembly of the present invention;

[0033] Figure 4 It is a schematic diagram of the installation structure of the inner conductor of the present invention;

[0034] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0035] Figure 6 It is a structural schematic diagram of the lower cavity of the present invention;

[0036] Figure 7 It is a schematic diagram of the back side of the lower cavity of the present invention;

[0037] Figure 8 It is a schematic diagram of the structure of the upper cavity and the lower cavity of the present invention in a split state;

[0038] Fig. 9 is a cross-sectional view of the lower cavity of the present invention;

[0039] Fig.10 It is a schematic diagram of the installation structure of the anti-loosening auxiliary heat dissipation mechanism of the present invention;

[0040] Fig.11 It is a schematic structural diagram of the connection state of the driving rod of the present invention.

[0041] Description of reference numerals:

[0042] In the figure: 1. RF circulator assembly; 2. upper cavity; 3. lower cavity; 4. connector; 5. magnetic shielding shell; 6. heat dissipation rack; 7. shielding component; 8. concave card slot; 9. mounting hole; 10. upper connecting component; 11. bifurcated branch; 12. mounting plate; 13. inner conductor; 14. lower connecting component; 15. U-shaped card block; 16. embedded groove; 17. branch card slot; 18. through hole; 19. opening and closing plate; 20 , first permanent magnet; 21, first magnetic conductive sheet; 22, first ferrite gyromagnet; 23, second ferrite gyromagnet; 24, second magnetic conductive sheet; 25, second permanent magnet; 26, rectangular chamber; 27, fastening top column; 28, heat dissipation vent; 29, supporting positioning plate; 30, anti-loosening auxiliary heat dissipation mechanism; 31, block; 32, reset spring; 33, ear plate; 34, driving rod; 35, vertical plate; 36, pull rope; 37, filter. DETAILED DESCRIPTION

[0043] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0044] Unless otherwise defined, the up, down, left, right, front, back, inside and outside directions involved in this document are based on the up, down, left, right, front, back, inside and outside directions in the figures shown in the present invention, and are explained here together.

[0045] This embodiment provides Figures 1 to 11 An S-band high-power radio frequency circulator structure shown includes: a radio frequency circulator assembly 1, a connector 4, an inner conductor 13, an upper connecting component 10, and a lower connecting component 14.

[0046] In this embodiment, the RF circulator assembly 1 is used for unidirectional transmission of high-frequency signal energy. The RF circulator assembly 1 includes an upper cavity 2 and a lower cavity 3 that are relatively spliced ​​together. The upper cavity 2 and the lower cavity 3 constitute the main body of the RF circulator assembly 1, provide installation positions for the internal conductor 13 and the magnetic material, and form a complete electromagnetic shielding environment through relative splicing to ensure that the signal will not be affected by external interference.

[0047] In this embodiment, three connectors 4 are provided and are respectively installed on the peripheral outer wall of the RF circulator assembly 1; the connector 4 is used to connect external devices to realize signal input and output. Each connector 4 is equipped with a mounting plate 12 and a U-shaped block 15 to ensure that the bifurcated branch 11 is stably fixed to prevent loosening.

[0048] In this embodiment, the inner conductor 13 is embedded between the upper cavity 2 and the lower cavity 3, and the inner conductor 13 is integrally connected to the three forked branches 11 in a circular array on the outer wall of the circumference, and the free ends of the three forked branches 11 are respectively connected to the three connectors 4; the inner conductor 13 and the forked branches 11 thereon form a Y-shaped center node, which is the main carrier of the radio frequency signal path, and is connected to the connector 4 through the forked branches 11 on its circumference to achieve effective distribution and reception of signals.

[0049] In this embodiment, the upper connection component 10 is embedded in the upper cavity 2 and abuts against the outer wall of one side of the inner conductor 13, and the lower connection component 14 is embedded in the lower cavity 3 and abuts against the back of the inner conductor 13. The stable physical connection ensures that the contact point between the inner conductor 13 and the bifurcated branch 11 will not cause impedance changes due to loosening or movement, which is crucial for maintaining the correct signal reflection coefficient and helps to achieve efficient power transmission.

[0050] In this embodiment, the circuit of the inner conductor 13 adopts a Y-shaped center junction, and the center junction is transitioned to the port through a 50Ω impedance transformation transition zone. The extension lines of the three ports of the RF circulator assembly 1 are matched through secondary impedance, so that the frequency covers the entire S band. The cavity of the product is made of aluminum alloy material with good thermal conductivity, so that the heat energy generated by the central ferrite gyromagnetism can be quickly dispersed to the entire cavity.

[0051] In this embodiment, the upper connecting component 10 includes a first permanent magnet 20 and a first magnetic conductive sheet 21 embedded in the upper cavity 2 on the side facing away from the lower cavity 3, and a first ferrite gyromagnet 22 embedded in the upper cavity 2 on the side close to the lower cavity 3. The first ferrite gyromagnet 22 directly abuts against the surface of the inner conductor 13.

[0052] In this embodiment, the lower connecting component 14 includes a second permanent magnet 25 and a second magnetic conductive sheet 24 embedded in the lower cavity 3 on the side facing away from the upper cavity 2, and a second ferrite gyromagnet 23 embedded in the lower cavity 3 on the side close to the upper cavity 2. The second ferrite gyromagnet 23 directly abuts against the back side of the inner conductor 13.

[0053] In this embodiment, a shielding component 7 is provided outside the upper cavity 2 and the lower cavity 3. The shielding component 7 is used to transfer the heat energy in the entire cavity, so that the bottom of the lower cavity 3 can be installed flatly on the radiator of the client machine. The upper cavity 2 has a heat dissipation rack 6 on the side facing away from the lower cavity 3. The heat dissipation rack 6 is designed to increase the heat dissipation area. The heat dissipation rack 6 is located at the top of the upper cavity 2, which increases the surface area, helps to improve the heat exchange efficiency, effectively dissipates the heat generated during operation, and keeps the temperature of the device within the required safety range. Good thermal management design, such as the heat dissipation rack 6 and the anti-loosening auxiliary heat dissipation mechanism 30, can prevent frequency deviation caused by overheating and ensure that the expected frequency characteristics can be maintained even in the case of high power output.

[0054] In this embodiment, the shielding component 7 includes a magnetic shielding shell 5, and a concave card slot 8 is provided on the opposite side of the upper cavity 2 and the lower cavity 3. The concave card slot 8 is a U-shaped structure. The two concave card slots 8 are relatively spliced ​​together for the clamping of the U-shaped clamping block 15, and the surface of each concave card slot 8 is provided with a mounting hole 9. As a part of the shielding component 7, the magnetic shielding shell 5 surrounds the upper cavity 2 and the lower cavity 3, reduces the influence of the external magnetic field on the internal circuit, and protects the internal components from external electromagnetic interference. The concave card slot 8 and the mounting hole 9 are respectively used to fasten the positioning of the top column 27 and the fixation of the first permanent magnet 20 and the second permanent magnet 25, thereby enhancing the stability of the overall structure.

[0055] In this embodiment, the first permanent magnet 20 and the first magnetic conductive sheet 21 are respectively arranged in the mounting hole 9 of the upper cavity 2, the second permanent magnet 25 and the second magnetic conductive sheet 24 are respectively arranged in the mounting hole 9 of the lower cavity 3, and the magnetic shielding shell 5 is clamped on the outside of the first permanent magnet 20 and the second permanent magnet 25 and can clamp the first permanent magnet 20 and the second permanent magnet 25 centripetally. The first permanent magnet 20, the first magnetic conductive sheet 21, the first ferrite gyromagnet 22 and the second ferrite gyromagnet 23, the second magnetic conductive sheet 24, and the second permanent magnet 25, these magnetic materials are combined together to form the key rotating magnetic field part in the RF circulator, supporting the directional transmission of RF signals.

[0056] In this embodiment, an embedded groove 16 is provided on one opposite side of the upper cavity 2 and the lower cavity 3, and three branch slots 17 are extended around each embedded groove 16. The first ferrite gyromagnet 22 is embedded in the embedded groove 16 of the upper cavity 2, and the second ferrite gyromagnet 23 is embedded in the embedded groove 16 of the lower cavity 3. The inner conductor 13 is clamped between the first ferrite gyromagnet 22 and the second ferrite gyromagnet 23, and the three forked branches 11 are respectively arranged in the three branch slots 17.

[0057] In this embodiment, a rectangular chamber 26 is provided inside one end of the lower cavity 3, and an anti-loosening auxiliary heat dissipation mechanism 30 is provided in the rectangular chamber 26. The anti-loosening auxiliary heat dissipation mechanism 30 can extend to one of the branch card slots 17 to dynamically connect and support the bifurcated branch 11. At the same time, a heat dissipation opening 28 is provided on the back of the lower cavity 3, and an opening and closing plate 19 is clamped in the heat dissipation opening 28. When the anti-loosening auxiliary heat dissipation mechanism 30 is pressed down by the bifurcated branch 11, the opening and closing plate 19 is driven to lift up and open the heat dissipation opening 28, so that the heat energy of the entire cavity is discharged. When the bifurcated branch 11 is not installed, the opening and closing plate 19 is in a state of closing the heat dissipation opening 28. When the bifurcated branch 11 is installed, the anti-loosening auxiliary heat dissipation mechanism 30 is squeezed, and the anti-loosening auxiliary heat dissipation mechanism 30 lifts the opening and closing plate 19 to open the heat dissipation opening 28.

[0058] In this embodiment, a support positioning plate 29 is fixed to the inner wall of one side of the rectangular chamber 26, and the anti-loosening auxiliary heat dissipation mechanism 30 includes a fastening top column 27 that passes through the support positioning plate 29, a block 31 symmetrically welded to the outer wall of the fastening top column 27 near one end of the upper cavity 2, a return spring 32 mounted on the side of the fastening top column 27 at one end of the block 31, a driving rod 34 hinged to the bottom end of the fastening top column 27, and a plurality of pull ropes 36 fixed to the free end of the driving rod 34. The free end of the pull rope 36 is fixedly connected to the opening and closing plate 19, and the outer wall of the surrounding side of the opening and closing plate 19 is softly connected to the inner wall of the heat dissipation vent 28 through a circle of filter mesh 37. The inner wall on the other side of the rectangular chamber 26 is symmetrically welded with a vertical plate 35, and the middle end of the driving rod 34 is hinged between the two vertical plates 35 through a pin shaft. The bottom end of the fastening top column 27 is symmetrically and integrally connected with an ear plate 33, and the end of the driving rod 34 away from the pull rope 36 is hinged between the two ear plates 33 through a pin shaft. A through hole 18 is opened on the inner wall of one of the branch card slots 17 located on a symmetrical side of the rectangular chamber 26 and in the lower cavity 3, and the end of the fastening top column 27 away from the ear plate 33 extends from the through hole 18, so that one end of the reset spring 32 elastically abuts against the inner wall of the block 31, and the other end elastically abuts against the inner wall of the rectangular chamber 26. When the forked branch 11 is installed, the forked branch 11 squeezes the fastening top column 27, and the fastening top column 27 shrinks into the rectangular chamber 26, and the fastening top column 27 moves linearly under the positioning of the supporting positioning plate 29. Under the action of the hinged end of the ear plate 33 and the hinged end of the vertical plate 35, the fastening top column 27 presses down the driving rod 34, so that the driving rod 34 presents a seesaw-like structure, so that the end of the driving rod 34 away from the ear plate 33 pulls the opening and closing plate 19 through the pull rope 36, so that the opening and closing plate 19 is pulled out of the heat dissipation vent 28, thereby completing the opening of the heat dissipation vent 28 for the rapid discharge of heat energy in the entire cavity. At the same time, the opening and closing plate 19 is softly connected with the heat dissipation vent 28 through the filter net 37, so that the filter net 37 plays a role in filtering dust, thereby reducing the entry of dust into the entire cavity.

[0059] In this embodiment, the design of the fastening top column 27 and the driving rod 34 can not only enable the fastening top column 27 to support the forked branch 11, reduce the shaking of the forked branch 11 and the inner conductor 13, and play a role in stable installation, but also can help to discharge the heat energy of the entire cavity and improve the overall service life; when the forked branch 11 is not installed, the fastening top column 27 loses the extrusion force, and under the reaction force of the reset spring 32, the fastening top column 27 is driven to extend out of the through hole 18, so that the end of the driving rod 34 close to the ear plate 33 is synchronously lifted, thereby pressing down the end close to the pull rope 36, and the opening and closing plate 19 loses the lifting force and is quickly pressed down to fit into the heat dissipation vent 28, thereby closing the heat dissipation vent 28, and the filter screen 37 is driven to the side of the opening and closing plate 19 facing away from the heat dissipation vent 28 and stored.

[0060] In this embodiment, one end of each connector 4 is integrally connected to a mounting plate 12, and the mounting plate 12 is mounted on the outer walls of the upper cavity 2 and the lower cavity 3 by bolts. The inner wall of each mounting plate 12 is fixed with a U-shaped block 15, which passes through the cavity and clamps the free end of the forked branch 11.

[0061] Working principle:

[0062] In the S-band high-power RF circulator structure, the high-frequency signal is input into the RF circulator assembly 1 through the connector 4. Each connector 4 is fixed to the outer wall of the upper cavity 2 and the lower cavity 3, ensuring a stable physical connection. After passing through the connector 4, the signal is transmitted to the bifurcated branch 11 and then reaches the inner conductor 13. The inner conductor 13 adopts a Y-shaped center junction design, so that the signal can be effectively distributed and transmitted.

[0063] The upper connecting component 10 includes a first permanent magnet 20, a first magnetic conductive sheet 21 and a first ferrite gyromagnet 22, which work together to produce a stable magnetic field environment. Similarly, the second ferrite gyromagnet 23, the second magnetic conductive sheet 24 and the second permanent magnet 25 in the lower connecting component 14 also play the same role. When the signal passes through the inner conductor 13, the rotating magnetic field formed by the above-mentioned magnetic material will guide the signal to flow in a predetermined direction to achieve a unidirectional transmission characteristic. This directional transmission is achieved through the gyromagnetic effect of the first ferrite gyromagnet 22 and the second ferrite gyromagnet 23 under an externally applied constant magnetic field.

[0064] According to the design of the RF circulator, the signal will be output from the other connector 4 without propagating back to the input port. This is due to the combined effect of the directionality of the rotating magnetic field and the structure of the inner conductor 13. In order to ensure efficient signal transmission, the circuit of the inner conductor 13 adopts a 50Ω impedance transformation transition band and covers the entire S band through secondary impedance matching, thereby optimizing the performance at different frequencies.

[0065] The heat dissipation rack 6 is located at the top of the upper cavity 2, which increases the surface area, helps to improve the efficiency of air convection, and speeds up the dissipation of heat. When the forked branch 11 is inserted into the branch slot 17, it squeezes the fastening top column 27, causing the anti-loosening auxiliary heat dissipation mechanism 30 to work. This causes the drive rod 34 to move, pulling the pull rope 36 to lift the opening and closing plate 19, opening the heat dissipation vent 28, and allowing the internal heat to be quickly discharged. At the same time, the filter 37 can prevent dust from entering the internal space. When the forked branch 11 is not installed, the reset spring 32 pushes the fastening top column 27 to reset, the action of the drive rod 34 is reversed, and the opening and closing plate 19 recloses the heat dissipation vent 28 to prevent dust and other contaminants from entering. The anti-loosening auxiliary heat dissipation mechanism 30 adjusts the state of the heat dissipation vent 28 to maintain the optimal operating temperature, ensuring that the RF circulator can operate stably under various conditions.

[0066] The U-shaped block 15 and the mounting plate 12 ensure that the connector 4 is firmly fixed to the upper cavity 2 and the lower cavity 3 to avoid loosening due to vibration or impact. The magnetic shielding shell 5 surrounds the entire RF circulator assembly 1, reducing the impact of external electromagnetic interference, while also preventing internal signal leakage and enhancing electromagnetic compatibility.

[0067] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An S-band high-power radio frequency circulator structure, characterized in that: include: A radio frequency circulator assembly (1) is used for unidirectional transmission of high-frequency signal energy, wherein the radio frequency circulator assembly (1) comprises an upper cavity (2) and a lower cavity (3) which are relatively spliced ​​together; Connectors (4), three of which are provided and are respectively mounted on the peripheral outer walls of the radio frequency circulator assembly (1); An inner conductor (13) is embedded between the upper cavity (2) and the lower cavity (3); the inner conductor (13) has an outer wall annular array integrally connected to three bifurcated branches (11); free ends of the three bifurcated branches (11) are respectively connected to three connectors (4); An upper connecting component (10) is embedded in the upper cavity (2) and abuts against an outer wall of one side of the inner conductor (13); A lower connecting component (14) is embedded in the lower cavity (3) and abuts against the back surface of the inner conductor (13); A rectangular chamber (26) is provided inside one end of the lower cavity (3), and an anti-loosening auxiliary heat dissipation mechanism (30) is provided in the rectangular chamber (26). The anti-loosening auxiliary heat dissipation mechanism (30) can extend to one of the branch slots (17) to dynamically connect with the supporting bifurcated branch (11); A heat dissipation opening (28) is provided on the back of the lower cavity (3), and an opening and closing plate (19) is clamped in the heat dissipation opening (28); When the bifurcated branch (11) is not installed, the opening and closing plate (19) closes the heat dissipation opening (28); when the bifurcated branch (11) is installed, the anti-loosening auxiliary heat dissipation mechanism (30) is pressed down by the bifurcated branch (11) and drives the opening and closing plate (19) to be lifted, and the opening and closing plate (19) opens the heat dissipation opening (28).

2. The S-band high-power radio frequency circulator structure according to claim 1, characterized in that: The circuit of the inner conductor (13) adopts a Y-shaped center junction, and the center junction is transitioned to the port through a 50Ω impedance transformation transition zone; The extension lines of the three ports of the radio frequency circulator assembly (1) are matched through secondary impedance, so that the frequency covers the entire S band.

3. The S-band high-power radio frequency circulator structure according to claim 2, characterized in that: The upper connection component (10) comprises a first permanent magnet (20) and a first magnetic conductive sheet (21) embedded in a side of the upper cavity (2) facing away from the lower cavity (3), and a first ferrite gyromagnet (22) embedded in a side of the upper cavity (2) close to the lower cavity (3); The first ferrite gyromagnet (22) directly abuts against the surface of the inner conductor (13).

4. The S-band high-power radio frequency circulator structure according to claim 3, characterized in that: The lower connecting component (14) comprises a second permanent magnet (25) and a second magnetic conductive sheet embedded in the lower cavity (3) on the side facing away from the upper cavity (2). (24) and a second ferrite gyromagnet (23) embedded in the lower cavity (3) on one side close to the upper cavity (2); The second ferrite gyromagnet (23) directly abuts against the back surface of the inner conductor (13).

5. The S-band high-power radio frequency circulator structure according to claim 4, characterized in that: Shielding components (7) are provided outside the upper cavity (2) and the lower cavity (3), and the shielding components (7) are used to transfer heat energy in the entire cavity, so that the bottom of the lower cavity (3) can be installed flat on the radiator of the client machine. The upper cavity (2) has a heat dissipation rack (6) on the side facing away from the lower cavity (3).

6. The S-band high-power radio frequency circulator structure according to claim 5, characterized in that: The shielding component (7) comprises a magnetic shielding shell (5), and the upper cavity (2) and the lower cavity (3) have concave card slots (8) on opposite sides thereof, the concave card slots (8) being of a U-shaped structure, the two concave card slots (8) being relatively spliced ​​together for the clamping of a U-shaped clamping block (15), and a mounting hole (9) being provided on the surface of each concave card slot (8).

7. The S-band high-power radio frequency circulator structure according to claim 6, characterized in that: The first permanent magnet (20) and the first magnetic conductive sheet (21) are respectively arranged in the mounting hole (9) of the upper cavity (2); The second permanent magnet (25) and the second magnetic conductive sheet (24) are respectively arranged in the mounting hole (9) of the lower cavity (3); the magnetic shielding shell (5) is clamped on the outside of the first permanent magnet (20) and the second permanent magnet (25) and is capable of centripetally clamping the first permanent magnet (20) and the second permanent magnet (25).

8. The S-band high-power radio frequency circulator structure according to claim 7, characterized in that: The upper cavity (2) and the lower cavity (3) are each provided with an embedded groove (16) on one side opposite to the other, and each of the embedded grooves (16) is provided with three branch slots (17) extending from the circumference thereof; The first ferrite gyromagnet (22) is embedded in an embedded groove (16) of the upper cavity (2), the second ferrite gyromagnet (23) is embedded in an embedded groove (16) of the lower cavity (3), the inner conductor (13) is clamped between the first ferrite gyromagnet (22) and the second ferrite gyromagnet (23), and the three bifurcated branches (11) are respectively arranged in three branch slots (17).

9. The S-band high-power radio frequency circulator structure according to claim 1, characterized in that: A support positioning plate (29) is fixed to an inner wall of one side of the rectangular chamber (26), and the anti-loosening auxiliary heat dissipation mechanism (30) comprises a fastening top column (27) penetrating the support positioning plate (29), a stopper (31) symmetrically welded to the outer wall of one end of the fastening top column (27) close to the upper chamber (2), a return spring (32) sleeved on the side of the fastening top column (27) at one end of the stopper (31), a driving rod (34) hinged to the bottom end of the fastening top column (27), and a plurality of pull ropes (36) fixed to the free end of the driving rod (34); When the bifurcated branch (11) is installed, the bifurcated branch (11) squeezes the fastening top column (27); the bottom end of the fastening top column (27) is symmetrically and integrally connected with an ear plate (33); the end of the driving rod (34) away from the ear plate (33) pulls the opening and closing plate (19) through the pull rope (36), so that the opening and closing plate (19) is pulled out of the heat dissipation opening (28).

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