Double-section double-frequency-band isolator

Abstract

The utility model discloses a double-section double-frequency-band isolator, which comprises a cavity, two cylindrical cavity grooves with the same size and the same depth are arranged on the cavity, and open slots communicated with each other are arranged on adjacent sides of the two cavity grooves; a permanent magnet I, a uniform magnetic iron sheet, a gyromagnetic ferrite I, a central circuit, a gyromagnetic ferrite II, a uniform magnetic iron sheet with an ear, a permanent magnet II, a nickel sheet and a cover plate are correspondingly arranged in each cavity groove from bottom to top in sequence, wherein the gyromagnetic ferrite I and the gyromagnetic ferrite II are fixed in the cavity groove through polytetrafluoroethylene rings; four ports are formed in three side edges of the cavity, each port is communicated with the cavity groove, one port is provided with a matched load, and the matched load is electrically connected with the central circuit; the utility model has the advantages of simple structure, low loss, good heat dissipation performance, high normal temperature and high and low temperature reliability, easy assembly and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to an isolator especially a double-section double-frequency band isolator. BACKGROUND

[0002] Under the condition of the rapid development of science and technology, microwave communication has become the main means of communication. The requirements of the size and cost of the whole machine are greatly improved. The existing isolator structure can only be used in one frequency band whether single section or double section, and basically cannot meet the requirements. Therefore, miniaturization, low cost and high performance are the latest targets. SUMMARY

[0003] In order to solve the problems in the prior art, the utility model provides a double-section double-frequency band isolator which has the characteristics of small loss, good heat dissipation performance, high reliability at normal temperature and high and low temperature, easy assembly and the like.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A double-section double-frequency band isolator comprises a cavity, two cylindrical cavity grooves with the same size and depth are arranged on the cavity, and mutually communicating opening grooves are arranged on the adjacent sides of the two cavity grooves;

[0006] Permanent magnet one, uniform magnet sheet, spin magnet ferrite one, center circuit, spin magnet ferrite two, ear-shaped uniform magnet sheet, permanent magnet two, nickel sheet and cover plate are sequentially arranged in the cavity groove from bottom to top, wherein the spin magnet ferrite one and the spin magnet ferrite two are fixed in the cavity groove through polytetrafluoroethylene rings;

[0007] Fine thread structures are arranged on the inner walls of the cavity grooves, the cover plate is cylindrical, and fine threads are arranged on the side surface, and the cover plate is screwed into the corresponding cavity groove through the threads;

[0008] Four ports are arranged on the three side edges of the cavity, each port is in communication with the cavity groove, and a matching load is arranged on one of the ports, and the matching load is electrically connected with the center circuit.

[0009] The utility model further limits the technical scheme:

[0010] Further, the center circuit is designed with two frequency bands, and the surface is silver-plated.

[0011] Further, the permanent magnet one and the permanent magnet two are strontium-calcium permanent magnets, and the thicknesses of the two are different, and the thickness of the permanent magnet one is smaller than that of the permanent magnet two.

[0012] Further, the spin magnet ferrite one and the spin magnet ferrite two are single-sided silver-plated, and the silver-plated surfaces of the two are in contact with the corresponding magnet sheets.

[0013] Further, the cover plate adopts stainless steel material.

[0014] Further, the cavity adopts integrated design, is processed by using easy-to-cut steel material, and the surface is treated by electroplating.

[0015] Compared with the prior art, the technical scheme of the utility model has the advantages that:

[0016] The utility model discloses simple structure has the characteristics such as small loss, good heat dissipation, high reliability at normal temperature and high and low temperature, easy assembly etc., the central circuit of the utility model adopts two frequency band designs, so one isolator can be used as two, that is, space and cost are saved, the surface is plated with silver, enhances the conductivity, reduces the loss, the permanent magnet one and permanent magnet two are strontium calcium permanent magnets, and the magnetism is stable and durable, changes very little under high and low temperature, can guarantee that the electric performance of product is stable under any extreme condition, the cavity adopts integrated design, and the magnetic shielding is good, facilitates processing and installation, is processed by using easy-to-cut steel material, and the surface is treated by electroplating, enhances the conductivity, and the spin magnetic ferrite thickness thickening can prevent breaking and cracking when the pressure is uneven, is favorable to improve the power bearing range, and ensures the electric performance stability. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structural diagram of the utility model;

[0018] Figure 2 It is the structural exploded view of the utility model. DETAILED DESCRIPTION EMBODIMENT

[0019] In order to make the utility model more clearly, the X wave band high isolation degree five section band line isolator of the utility model is further explained below in conjunction with the drawings, and the specific embodiment described here is only used for explaining the utility model, and is not used for limiting the utility model.

[0020] Referring to Figure 1 And Figure 2 A double section double frequency band isolator, including cavity 1, adopts integrated design, is processed by using easy-to-cut steel material, and the surface is treated by electroplating, two same size, depth same cylindrical cavity recess 1a is equipped on the cavity 1, two cavity recesses are provided with the open slot 1b that intercommunication one side is adjacent,

[0021] Permanent magnet one 2, uniform magnet sheet 3, spin magnetic ferrite one 5a, center circuit 6, spin magnetic ferrite two 5b, ear uniform magnet sheet 7, permanent magnet two 8, nickel sheet 9 and cover plate 10 are sequentially arranged in each cavity recess 1a from bottom to top, wherein spin magnetic ferrite one 5a and spin magnetic ferrite two 5b are fixed in the cavity recess through polytetrafluoroethylene ring 4, and spin magnetic ferrite one 5a and spin magnetic ferrite two 5b are single-sided silver-plated, the thickness of both is thickened, and the silver-plated surfaces of both are in contact with the corresponding magnet sheets; the center circuit is designed with two frequency bands, and the surface is silver-plated; permanent magnet one 2 and permanent magnet two 8 are strontium-calcium permanent magnets, and the thicknesses of the two are different, and the thickness of permanent magnet one 2 is less than that of permanent magnet two 8.

[0022] The inner wall of the cavity recess 1a is provided with a fine thread structure, the cover plate 10 is cylindrical, made of stainless steel, and provided with a fine thread on the side surface, and the cover plate is screwed into the corresponding cavity recess through the thread.

[0023] Four ports 1c are formed on the three side edges of the cavity, each port is in communication with the cavity recess, and a matching load 11 is arranged at one of the ports and electrically connected with the center circuit 6.

[0024] The embodiment has the characteristics of simple structure, small loss, good heat dissipation performance, high reliability at room temperature and high and low temperatures, easy assembly and the like; the center circuit is designed with two frequency bands, so that one isolator can be used for two, which saves space and cost, the surface is silver-plated to enhance the conductivity and reduce the loss; permanent magnet one and permanent magnet two are strontium-calcium permanent magnets, the magnetism is stable and durable, and changes little at high and low temperatures, which can ensure the stable electrical performance of the product under any extreme conditions; the cavity is designed in an integrated manner, the magnetic shielding is good, the processing and installation are convenient, the material is easy-to-cut steel, the surface is treated by electroplating to enhance the conductivity, the thickness of the spin magnetic ferrite is thickened to prevent cracking when the pressure is uneven, which is beneficial to improve the power bearing range and ensure the stable electrical performance.

[0025] The main technical indicators of the double-section double-frequency band isolator are as follows:

[0026]

[0027] In addition to the above embodiments, the utility model can also have other implementation manners. Any technical scheme formed by equivalent replacement or equivalent transformation falls within the protection scope required by the utility model.

Claims

1. A dual-section dual-band isolator comprising a cavity (1), characterized in that: Two cylindrical cavity recesses (1a) with same size and depth are arranged on the cavity (1), and an opening slot (1b) is arranged on the adjacent side of the two cavity recesses, A permanent magnet (2), a uniform magnet piece (3), a gyromagnetic ferrite (5a), a center circuit (6), a gyromagnetic ferrite (5b), an ear-shaped uniform magnet piece (7), a permanent magnet (8), a nickel piece (9) and a cover plate (10) are sequentially arranged in the cavity recess from bottom to top, wherein the gyromagnetic ferrite (5a) and the gyromagnetic ferrite (5b) are fixed in the cavity recess by a polytetrafluoroethylene ring (4); A fine thread structure is arranged on the inner wall of the cavity recess, the cover plate (10) is cylindrical and is provided with a fine thread on the side surface, and the cover plate is screwed into the corresponding cavity recess through the thread; Four ports (1c) are arranged on the three side edges of the cavity, each port is in communication with the cavity recess, and a matching load (11) is arranged on one of the ports, and the matching load is electrically connected with the center circuit (6).

2. The dual-section dual-band isolator of claim 1, wherein: The center circuit is designed with two frequency bands, and the surface is plated with silver.

3. The dual-section dual-band isolator of claim 1, wherein: The permanent magnet (2) and the permanent magnet (8) are both strontium-calcium permanent magnets, and the thicknesses of the two are different, and the thickness of the permanent magnet (2) is smaller than that of the permanent magnet (8).

4. The dual-section dual-band isolator of claim 1, wherein: The gyromagnetic ferrite (5a) and the gyromagnetic ferrite (5b) are both plated with silver on one side, and the silver-plated surfaces of the two are in contact with the corresponding magnet pieces.

5. The dual-section dual-band isolator of claim 1, wherein: The cover plate (10) is made of stainless steel.

6. The dual-section dual-band isolator of claim 1, wherein: The cavity (1) is designed in an integrated manner, is made of easy-to-cut steel material, and the surface is subjected to electroplating treatment.

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