Microwave 6KW high-peak power low-loss strip line isolator

Abstract

The utility model discloses a microwave 6KW high-peak power low-loss strip line isolator, which relates to the technical field of low-loss strip line isolators and comprises an upper magnetic conductive cover plate, a second uniform magnetic sheet, an insulating medium block, a second gyromagnet, a central circuit, a first gyromagnet, a sealed magnetic conductive structure, a permanent magnet, a compensating sheet and the like. A cylindrical containing cavity is formed in the center of the upper portion of the sealed magnetic conduction structure, extends in the positive and negative directions of the X axis with the center of the cylinder as the point, is provided with a signal input port and a signal output port, and extends to the signal absorption cavity in the negative direction of the Y axis in the direction perpendicular to the X axis. A constant magnetic field containing cavity is formed in the lower portion of the sealed magnetic conduction structure and bears and provides a constant magnetic field. The top and the bottom are installed and sealed through screws through an upper magnetic conductive cover plate and a lower magnetic conductive cover plate respectively, and magnetic leakage is prevented.

Description

Technical Field

[0001] The utility model relates to a high-power low-loss stripline isolator, in particular to the technical field of a microwave 6KW high peak power low-loss stripline isolator. Background Art

[0002] With the development of radio technology, humans are using radio resources more deeply in various industries. The high frequency band has advantages that are difficult to compare with the low frequency band, so the development of the high frequency band has become a research hotspot. The performance of microwave high-power isolators is directly related to the performance of the entire system. Therefore, the research on X-band high-power isolators is of great significance.

[0003] This utility model mainly introduces the improved design and implementation of the X-band high-power stripline isolator. In the X-band, it has a large low-frequency gain, so it is easy to generate low-frequency self-excitation, and the generated modulation signal will cause the circuit to not work normally. Utility Model Content

[0004] The technical problem to be solved by the utility model is to solve the problem in the prior art that the X-band has a large low-frequency gain, which is prone to low-frequency self-excitation, and the generated modulation signal will cause the circuit to fail to work normally, and a microwave 6KW high peak power low-loss stripline isolator is proposed.

[0005] The utility model adopts the following technical solutions to solve the above technical problems

[0006] A microwave 6KW high peak power low loss stripline isolator comprises an upper magnetic conductive cover plate, a sealed magnetic conductive structure and a lower magnetic conductive cover plate; the sealed magnetic conductive structure comprises a second uniform magnetic sheet, a second insulating medium block, a second gyromagnet, a central circuit, a first gyromagnet, a first insulating medium block, a first uniform magnetic sheet, a sealed magnetic conductive structure permanent magnet and a compensation sheet which are sequentially stacked from top to bottom; the top and bottom of the sealed magnetic conductive structure are respectively screwed and sealed by an upper magnetic conductive cover plate and a lower magnetic conductive cover plate to prevent magnetic leakage from the lower magnetic conductive cover plate.

[0007] As a further preferred solution of a microwave 6KW high peak power low loss stripline isolator of the utility model, the sealed magnetic conductive structure is divided into two parts, an upper and a lower part. A cylindrical receiving cavity is formed at the center of the upper part of the sealed magnetic conductive structure, which extends along the positive and negative directions of the X-axis with the center of the cylinder as the point, and is provided with signal input and signal output ports, which are perpendicular to the X-axis direction and extend along the negative direction of the Y-axis to the signal absorption cavity; a constant magnetic field receiving cavity is provided at the lower part of the sealed magnetic conductive structure, which bears and provides a constant magnetic field.

[0008] As a further preferred solution of the utility model of a microwave 6KW high peak power low loss strip line isolator, the central circuit is set with the center of the permanent magnet constant magnetic field distribution as the point, and an inductor with an angle of 60 degrees is set and extended, and an input port, an output port, and a load port are respectively set;

[0009] The input port and the output port present 180-degree straight lead input and output, which are used to connect the input of the signal;

[0010] The output port is used to connect the outgoing signal, and the load port is used to absorb resonance, spurious signals and electrophoresis.

[0011] The termination end is connected to a high-power absorbing material and is used to be placed on an absorbing platform to absorb stray beams within the absorption band, while using the magnetic conductive containment sealed cavity below as the main body for heat dissipation.

[0012] As a further preferred solution of the utility model of a microwave 6KW high peak power low loss stripline isolator, the central circuit takes the center of the permanent magnet constant magnetic field distribution as the point, and a capacitor with an angle of 60 degrees is set and extended, and is alternately arranged with the inductance of the input port, output port, and load port. The capacitor part of the central circuit extends 1.2mm.

[0013] As a further preferred solution of a microwave 6KW high peak power low loss stripline isolator of the utility model, the first insulating medium block and the second insulating medium block are both arranged in an equilateral triangle, and the equilateral triangle center is extended as a circle to form a gyromagnetic body accommodating cavity to fix the gyromagnetic material. The first absorbing material, the second absorbing material, and the third absorbing material are respectively arranged at the three equilateral center positions of the equilateral triangle; and at the same time, they are bonded to the first uniform magnetic sheet.

[0014] As a further preferred solution of the microwave 6KW high peak power low loss stripline isolator of the utility model, the first gyromagnet and the second gyromagnet both adopt gyromagnets with high magnetic moment, a coating is arranged on the surface, and special equipment is used for water grinding, polishing and mirror treatment.

[0015] Compared with the prior art, the utility model adopts the above technical solution and has the following technical effects:

[0016] 1. The utility model is a microwave 6KW high peak power low loss strip line isolator. By improving the upper center of the sealed magnetic conductive structure, a cylindrical receiving cavity is formed. The center of the cylinder is used as a point to extend along the positive and negative directions of the X-axis. Signal input and signal output ports are set, perpendicular to the X-axis direction, and extend to the signal absorption cavity along the negative direction of the Y-axis. A constant magnetic field receiving cavity is set in the lower part of the sealed magnetic conductive structure to bear and provide a constant magnetic field. The top and bottom are respectively sealed with upper and lower magnetic conductive cover plates for screw installation to prevent magnetic leakage.

[0017] 2. The utility model can reduce the weight and volume of the X-band component module, effectively improve the peak power capacity, avoid excessive stray signals affecting signal transmission and scanning, and improve the integration of components;

[0018] 3. The utility model is a microwave 6KW high peak power low loss strip line isolator. The central circuit is based on the center of the permanent magnet constant magnetic field distribution as the point, and an inductor with an angle of 60 degrees is set and extended, and an input port, an output port, and a load port are set respectively; the input port and the output port present a 180-degree straight lead input and output, the input port is responsible for connecting the incoming signal, the output port is connected to the outgoing signal, and the load port is responsible for absorbing resonance, strays and electrophoresis. The termination end is connected to a high-power absorption material and placed on an absorbing platform to absorb stray beams within the absorption band, and the lower magnetic containment sealed cavity is used as the main body for heat dissipation;

[0019] 4. The utility model is a microwave 6KW high peak power low loss strip line isolator. The central circuit used is the center of the permanent magnet constant magnetic field distribution as the point, and the capacitor with an angle of 60 degrees is set and extended, and the input port, output port, and load port inductance are alternately set. The capacitor part of the central circuit extends 1.2mm to achieve the effects of decoupling, adjusting the resonant frequency point and reducing losses;

[0020] 5. The utility model is a microwave 6KW high peak power low loss strip line isolator. The insulating medium block used is arranged in an equilateral triangle. The center of the equilateral triangle is extended as a circle to form a gyromagnetic body receiving cavity. The gyromagnetic material is fixed. The three equilateral center positions of the equilateral triangle are respectively provided with 0.125mm3 absorbing materials, which are bonded to the first uniform magnetic sheet at the same time, which is conducive to reducing losses and reducing device heating; at the same time, the reliability of the device is enhanced;

[0021] 6. The utility model is a microwave 6KW high peak power low loss stripline isolator. The first gyromagnet and the second gyromagnet used are made of gyromagnetic material with high magnetic moment. A coating is set on one surface, and special equipment is used for water grinding, polishing and mirror treatment, which is beneficial to reduce losses. The selected gyromagnetic ferrite is beneficial to increase peak power and the effect of small duty cycle can improve the reliability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the decomposed structure of a microwave 6KW high peak power low loss stripline isolator;

[0023] Figure 2 It is a schematic diagram of the top view of a microwave 6KW high peak power low loss stripline isolator;

[0024] Figure 3 is the schematic diagram of the central circuit;

[0025] Figure 4 This is a structural diagram of the magnetic containment structure.

[0026] In the figure: 1. lower magnetic cover plate; 2. compensation plate; 3. permanent magnet; 4. sealed magnetic structure; 5. first uniform magnetic plate; 6. first insulating dielectric block; 7-1. first absorbing material; 7-2. second absorbing material; 7-3. third absorbing material; 8. first gyromagnet; 9. center circuit; 10. second gyromagnet; 11. second insulating dielectric block; 12. second uniform magnetic plate; 13. upper magnetic cover plate; 14. flange resistor; 15. output matching capacitor; 16. matching inductor; 17. cylindrical receiving cavity; 18. constant magnetic field receiving cavity; 19. matching capacitor. DETAILED DESCRIPTION

[0027] The technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings:

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] The 6KW high power low loss stripline isolator of the utility model embodiments generally described and shown in the drawings herein can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed, but merely represents selected embodiments of the utility model.

[0030] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0031] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "X-axis", "Y-axis", "Z-axis", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figure 1-Figure 4 As shown: A microwave 6KW high peak power low loss stripline isolator, comprising a magnetically conductive sealed upper bottom plate, a magnetically conductive cavity, a magnetically conductive sealed lower bottom plate and an absorbing structure;

[0034] In order to achieve the design requirements of high peak power and low insertion loss of a microwave 6KW high peak power low loss strip line isolator, a microwave 6KW high peak power low loss strip line isolator is used in communication equipment, that is, the sealed magnetic conductive structure is divided into upper and lower parts; a cylindrical receiving cavity 17 is formed in the center of the upper part of the sealed magnetic conductive structure, extending along the positive and negative directions of the X-axis with the center of the cylinder as the point, and signal input and signal output ports are set, perpendicular to the X-axis direction, and extending to the signal absorption cavity along the negative direction of the Y-axis; the absorption cavity is provided with a straight-through channel, which runs through the upper part, and is connected to the central circuit through the straight-through channel, and is connected to the components, modules, and components in the absorption cavity, absorbing the resonance, stray and electrophoresis generated by the microwave passive signal, ensuring the stable transmission of the microwave signal, and making the device most likely to be miniaturized. A constant magnetic field receiving cavity 18 is set in the lower part of the sealed magnetic conductive structure to bear and provide a constant magnetic field. The top and bottom are respectively sealed with upper and lower magnetic conductive cover plates for screw installation to prevent magnetic leakage.

[0035] The utility model discloses a microwave 6KW high peak power low loss strip line isolator, such as Figure 1 As shown, it comprises an upper magnetic conductive cover plate 13, a sealed magnetic conductive structure 4, and a lower magnetic conductive cover plate 1; the sealed magnetic conductive structure 4 comprises a second uniform magnetic sheet 12, a second insulating medium block 11, a second gyromagnet 10, a central circuit 9, a first gyromagnet 8, a first insulating medium block 6, a first uniform magnetic sheet 5, a sealed magnetic conductive structure 4, a permanent magnet 3, and a compensation sheet 2, which are stacked in sequence from top to bottom; the top and bottom of the sealed magnetic conductive structure (4) are respectively screwed and sealed by the upper magnetic conductive cover plate 13 and the lower magnetic conductive cover plate 1 to prevent magnetic leakage from the lower magnetic conductive cover plate 1.

[0036] The center of the upper part of the sealed magnetic conductive structure 4 forms a cylindrical receiving cavity, which extends along the positive and negative directions of the X axis with the center of the cylinder as the point, and is provided with signal input and signal output ports, which are perpendicular to the X axis and extend to the signal absorption cavity along the negative direction of the Y axis; a constant magnetic field receiving cavity is provided in the lower part of the sealed magnetic conductive structure to bear and provide a constant magnetic field. The top and bottom are respectively sealed with screws using an upper magnetic conductive cover plate 13 and a lower magnetic conductive cover plate 1 to prevent magnetic leakage.

[0037] A cylindrical receiving cavity is formed by improving the center of the upper part of the sealed magnetic conductive structure, extending along the positive and negative directions of the X-axis with the center of the cylinder as the point, and setting signal input and signal output ports, perpendicular to the X-axis direction, extending to the signal absorption cavity along the negative direction of the Y-axis; a constant magnetic field receiving cavity is set in the lower part of the sealed magnetic conductive structure to bear and provide a constant magnetic field. The top and bottom are respectively sealed with screws using the upper magnetic conductive cover plate and the lower magnetic conductive cover plate to prevent magnetic leakage.

[0038] The central circuit includes an output matching capacitor 15, a matching inductor 16, and a matching capacitor 19;

[0039] By improving the central circuit 9, the center of the permanent magnet constant magnetic field distribution is taken as the point, and the inductor with an angle of 60 degrees is set and extended, and the input port, output port and load port are respectively set; the input port and the output port present a 180-degree straight lead input and output, the input port is responsible for connecting the input signal, the output port is connected to the output signal, and the load port is responsible for absorbing resonance, stray and electrophoresis. The termination end is connected to the high-power absorption material and placed on the wave absorbing platform, and the stray beams in the absorption band are dissipated at the same time with the magnetic containment sealed cavity below as the body.

[0040] By improving the central circuit 9 and taking the center of the permanent magnet's constant magnetic field distribution as the point, a capacitor with an angle of 60 degrees is set and extended, and the inductors of the input port, output port, and load port are alternately arranged, wherein the capacitor part of the central circuit is extended by 1.2 mm, so as to achieve the effects of decoupling, adjusting the resonant frequency point and reducing losses.

[0041] The utility model discloses a microwave 6KW high peak power low loss stripline isolator, which is arranged in an equilateral triangle by improving an insulating medium block, and the equilateral triangle center is extended as a circle to form a gyromagnetic body accommodating cavity, and the gyromagnetic material is fixed. The first absorbing material 7-1, the second absorbing material 7-2, and the third absorbing material 7-3 are respectively arranged at the three equilateral center positions of the equilateral triangle; the first absorbing material 7-1, the second absorbing material 7-2, and the third absorbing material 7-3 are made of 0.125mm absorbing material, and are bonded to the first uniform magnetic sheet at the same time, which is beneficial to reducing loss and reducing device heating; at the same time, the reliability of the device is enhanced.

[0042] The utility model is a microwave 6KW high peak power low loss stripline isolator. The first gyromagnet and the second gyromagnet are improved by using gyromagnetic materials with high magnetic moment, one of the surfaces is provided with a coating, and special equipment is used for water grinding, polishing and mirror treatment, which is beneficial to reducing losses. The selected gyromagnetic ferrite is beneficial to increasing peak power and the effect of small duty cycle can improve the reliability of the product.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A microwave 6KW high peak power low loss stripline isolator, characterized by: The invention comprises an upper magnetic conductive cover plate (13), a sealed magnetic conductive structure (4), and a lower magnetic conductive cover plate (1); the sealed magnetic conductive structure (4) comprises a second uniform magnetic sheet (12), a second insulating medium block (11), a second gyromagnet (10), a central circuit (9), a first gyromagnet (8), a first insulating medium block (6), a first uniform magnetic sheet (5), a sealed magnetic conductive structure (4), a permanent magnet (3), and a compensation sheet (2) which are stacked in sequence from top to bottom; the top and bottom of the sealed magnetic conductive structure (4) are respectively screwed and sealed by the upper magnetic conductive cover plate (13) and the lower magnetic conductive cover plate (1) to prevent magnetic leakage from the lower magnetic conductive cover plate (1); The sealed magnetic conductive structure (4) is divided into two parts, an upper part and an lower part. The center of the upper part of the sealed magnetic conductive structure (4) forms a cylindrical receiving cavity, which extends along the positive and negative directions of the X-axis with the center of the cylinder as the point, and is provided with signal input and signal output ports, which are perpendicular to the X-axis direction and extend along the negative direction of the Y-axis to the signal absorption cavity; the lower part of the sealed magnetic conductive structure (4) is provided with a constant magnetic field receiving cavity, which bears and provides a constant magnetic field.

2. A microwave 6KW high peak power low loss stripline isolator according to claim 1, characterized in that: The central circuit (9) is set with the center of the permanent magnet constant magnetic field distribution as the point, and an inductor with an angle of 60 degrees is extended, and an input port, an output port, and a load port are respectively provided; The input port and the output port present 180-degree straight lead input and output, which are used to connect the input of the signal; The output port is used to connect the outgoing signal, and the load port is used to absorb resonance, spurious signals and electrophoresis. The termination end is connected to a high-power absorbing material for placement on an absorbing platform.

3. A microwave 6KW high peak power low loss stripline isolator according to claim 1, characterized in that: The central circuit (9) is arranged with a capacitor having an angle of 60 degrees and extending with the center of the permanent magnet constant magnetic field distribution as a point, and is arranged alternately with the input port, the output port, and the load port inductance, and the capacitor part of the central circuit extends 1.2 mm.

4. A microwave 6KW high peak power low loss stripline isolator according to claim 1, characterized in that: The first insulating medium block (6) and the second insulating medium block (11) are both arranged in an equilateral triangle, and the center of the equilateral triangle is extended as a circle to form a gyromagnetic body receiving cavity to fix the gyromagnetic material. The first absorbing material (7-1), the second absorbing material (7-2), and the third absorbing material (7-3) are respectively arranged at the three equilateral center positions of the equilateral triangle; and they are bonded to the first uniform magnetic sheet at the same time.

5. A microwave 6KW high peak power low loss stripline isolator according to claim 1, characterized in that: The first gyromagnet (8) and the second gyromagnet (10) are both gyromagnets with high magnetic moments, and a coating layer is provided on the surface.

Images