阅读说明：本技术 一种p波段铁氧体片隔离器 (P wave band ferrite piece isolator ) 是由 黄涛 蔡群峰 华韡 于 2020-12-24 设计创作，主要内容包括：本发明提供了一种P波段铁氧体片隔离器,其特征在于,包括中心导体,所述中心导体的两侧由近至远依次设置有铁氧体片、腔体板、永磁体、补偿片和磁路板；其中一个磁路板还安装有旋盖；所述中心导体具有若干连接头；两个磁路板之间还安装有与所述连接头等数量的导磁板,每个导磁板上均安装有连接器,所述连接器与相应的连接头相连接；所述腔体板的外侧设置有散热结构,所述散热结构的中部设置有凹槽结构,所述永磁体和补偿片设置于所述凹槽结构中。本发明中的腔体板的外侧面设置有散热结构,有利于设置在该侧的铁氧体片的散热,散热结构的散热片布局合理,具有更大的传热面积,从而有利于提升器件性能,达到低频段、大带宽运行的目的。(The invention provides a P-band ferrite sheet isolator which is characterized by comprising a central conductor, wherein ferrite sheets, a cavity plate, a permanent magnet, a compensation sheet and a magnetic circuit board are sequentially arranged on two sides of the central conductor from near to far; one of the magnetic circuit boards is also provided with a spiral cover; the central conductor is provided with a plurality of connectors; magnetic conduction plates with the same number as the connectors are also arranged between the two magnetic circuit boards, and each magnetic conduction plate is provided with a connector which is connected with the corresponding connector; the cavity plate is provided with a heat dissipation structure on the outer side, a groove structure is arranged in the middle of the heat dissipation structure, and the permanent magnet and the compensating plate are arranged in the groove structure. The radiating structure is arranged on the outer side face of the cavity plate, so that the ferrite plate arranged on the side can be favorably radiated, and radiating fins of the radiating structure are reasonable in layout and have larger heat transfer area, so that the device performance can be favorably improved, and the purposes of low frequency band and large bandwidth operation can be achieved.)

1. The P-waveband ferrite sheet isolator is characterized by comprising a central conductor (8), wherein ferrite sheets (9), a cavity plate (1), a permanent magnet (10), a compensation sheet (11) and a magnetic circuit plate (6) are sequentially arranged on two sides of the central conductor (8) from near to far; one of the magnetic circuit boards (6) is also provided with a spiral cover (7); the central conductor (8) is provided with a plurality of connectors (8.3); magnetic conductive plates (5) with the same number as the connectors (8.3) are further mounted between the two magnetic circuit boards (6), a connector (12) is mounted on each magnetic conductive plate (5), and the connectors (12) are connected with the corresponding connectors (8.3); the cavity plate is characterized in that a heat dissipation structure (1.3) is arranged on the outer side of the cavity plate (1), a groove structure (1.1) is arranged in the middle of the heat dissipation structure (1.3), and the permanent magnet (10) and the compensation sheet (11) are arranged in the groove structure (1.1).

2. A P-band ferrite sheet isolator as claimed in claim 1, characterized in that several baffles (4) are mounted between two cavity plates (1).

3. A P-band ferrite sheet isolator as claimed in claim 1, characterized in that a number of sockets (3) are mounted between two cavity plates (1), said sockets (3) being provided with mounting holes (3.1), said connectors (8.3) being arranged in the mounting holes (3.1) of the respective sockets (3).

4. A P-band ferrite sheet isolator as claimed in claim 3, characterized in that the inner side edges of the cavity plates (1) are provided with recesses (1.2), the side portions of the connector block (3) being snapped into the recesses (1.2) of the respective cavity plate (1).

5. A P-band ferrite sheet isolator according to claim 3, wherein the connector sockets (3) are connected to respective magnetically permeable plates (5).

6. A P-band ferrite sheet isolator as claimed in claim 1, characterized in that the central conductor (8) comprises a plurality of individual bodies (8.2) stacked with a certain gap, the individual bodies (8.2) having a plurality of arms (8.2) extending outwards from the center, the connectors (8.3) being connected to the ends of the respective arms (8.2).

7. The P-band ferrite sheet isolator according to claim 6, characterized in that the single body (8.2) is an aluminum single body, the surface of which is provided with a silver coating.

8. A P band ferrite sheet isolator as claimed in claim 1, characterized in that the center of the magnetic circuit board (6) where the spin cover plate (7) is mounted is provided with a through hole (6.1) for mounting the spin cover plate (7).

9. A P-band ferrite sheet isolator according to claim 1, characterized in that the permanent magnet (10) is a barium iron permanent magnet.

10. A P-band ferrite sheet isolator as claimed in claim 1 wherein the number of connectors (12) is three.

Technical Field

The invention belongs to the technical field of isolators, and particularly relates to a P-band ferrite sheet isolator.

Background

The isolator is widely applied to the fields of radar, electronic countermeasure, communication and the like, is a key device of a high-power microwave system, has forward transmission and reverse isolation characteristics, can absorb high-power microwave energy emitted by a microwave system terminal, and plays roles in protecting and prolonging a high-power microwave source.

With the rapid development of microwave devices, the isolator needs to withstand higher peak power and higher average power with the insertion loss mostly coming from the microwave loss generated by the ferrite sheet, and the loss is all converted into heat. If the generated heat is not efficiently transferred, the temperature of the ferrite sheet increases, and if the temperature exceeds a predetermined value, the device performance gradually deteriorates, an important index deteriorates, and the function is lost. Therefore, it is important to develop an isolator having the characteristics of low frequency band, large bandwidth, high power tolerance, good heat dissipation, etc.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the utility model provides a P wave band ferrite piece isolator can avoid ferrite piece high temperature and influence the normal operating of isolator.

The invention is realized by the following steps: a P-band ferrite sheet isolator is characterized by comprising a central conductor, wherein ferrite sheets, a cavity plate, a permanent magnet, a compensation sheet and a magnetic circuit board are sequentially arranged on two sides of the central conductor from near to far; one of the magnetic circuit boards is also provided with a spiral cover; the central conductor is provided with a plurality of connectors; magnetic conduction plates with the same number as the connectors are also arranged between the two magnetic circuit boards, and each magnetic conduction plate is provided with a connector which is connected with the corresponding connector; the cavity plate is provided with a heat dissipation structure on the outer side, a groove structure is arranged in the middle of the heat dissipation structure, and the permanent magnet and the compensating plate are arranged in the groove structure.

Furthermore, a plurality of baffles are arranged between the two cavity plates.

Further, install a plurality of joints seats between two cavity boards, be provided with the mounting hole on the joint seat, the connector sets up in the mounting hole of corresponding joint seat.

Furthermore, a plurality of concave parts are arranged on the inner side edge of the cavity plate, and the side parts of the joint seats are clamped in the concave parts of the corresponding cavity plates.

Further, the adapter seat is connected with corresponding magnetic conduction plate.

Furthermore, the central conductor comprises a plurality of single bodies which are arranged in a stacked mode with a certain gap, each single body is provided with a plurality of arm-shaped bodies extending outwards from the center, and the connecting heads are connected with the end portions of the corresponding arm-shaped bodies.

Further, the monomer is an aluminum monomer, and the surface of the monomer is provided with a silver coating.

Further, a through hole for mounting the rotary cover plate is formed in the center of the magnetic circuit plate on which the rotary cover plate is mounted.

Further, the permanent magnet is a barium-iron permanent magnet.

Further, the number of the connectors is three.

The invention has the following beneficial effects: the heat dissipation structure is arranged on the outer side face of the cavity plate, heat dissipation of the ferrite sheet arranged on the side is facilitated, heat dissipation fins of the heat dissipation structure are reasonable in layout and have larger heat transfer area, and the air duct smoothness can be guaranteed due to the fact that the wind direction of the fan is consistent with the layout mode of the heat dissipation fins, so that the performance of a device during high-power operation is facilitated to be improved, and the purposes of low frequency range and high bandwidth operation are achieved.

Drawings

FIG. 1 is a perspective view of a preferred embodiment of the present invention;

FIG. 2 is an exploded view of the embodiment of FIG. 1;

FIG. 3 is a front view of the embodiment of FIG. 1;

FIG. 4 is a sectional view of the structure taken along line A-A in FIG. 3;

FIG. 5 is a perspective view of the structure of the cavity plate in the embodiment shown in FIG. 1;

fig. 6 is a perspective view of the structure of the center conductor in the embodiment shown in fig. 1.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 6, a P-band ferrite sheet isolator is characterized by comprising a central conductor 8, wherein ferrite sheets 9, a cavity plate 1, a permanent magnet 10, a compensation sheet 11 and a magnetic circuit plate 6 are sequentially arranged on two sides of the central conductor 8 from near to far. The ferrite sheet 9 is made of garnet ferrite material, the dielectric constant of the ferrite sheet is 14, the magnetic moment is 700Gs, the ferromagnetic resonance line width is 60Oe, the ferrite sheet 9 is adhered to the inner side surface of the cavity plate 1 through high-temperature-resistant glue, and the rotary cover 7 is further installed on one of the magnetic circuit boards 6. The central conductor 8 is provided with three connectors 8.3, magnetic conductive plates 5 with the same number as the connectors 8.3 are further installed between the two magnetic circuit boards 6, the magnetic circuit boards 6 are provided with three extending parts with the same included angle, and the opposite extending parts of the two magnetic circuit boards 6 are connected with the corresponding magnetic conductive plates 5 through screws. Each magnetic conduction plate 5 is fixedly provided with a connector 12 through a screw, and the connector 12 is connected with the corresponding connector 8.3. The outside of cavity board 1 is provided with heat radiation structure 1.3, and heat radiation structure 1.3's middle part is provided with groove structure 1.1, and permanent magnet 10 and shim 11 set up in groove structure 1.1. The heat dissipation structure comprises a plurality of heat dissipation fins, the heat dissipation fins are distributed in the same direction as the wind direction of the fan, the layout is reasonable, the heat transfer area of the heat dissipation fins is increased as much as possible, the air duct is guaranteed to be smooth, and the heat dissipation performance is improved.

In an alternative embodiment, three baffle plates 4 are arranged between the two cavity plates 1, and the baffle plates 4 are uniformly distributed along the circumferential direction of the central conductor 8 and fixed at the positions, close to the edges, of the inner side surfaces of the cavity plates 1 through screws.

In an alternative embodiment, three connector seats 3 are installed between two cavity plates 1, and the connector seats 3 are uniformly distributed along the circumferential direction of the central conductor 8 and connected with the cavity plates 1 through screws. The joint seat 3 is provided with a mounting hole 3.1, and the connector 8.3 is arranged in the mounting hole 3.1 of the corresponding joint seat 3.

In an alternative embodiment, the inner edge of the cavity plate 1 is provided with three recesses 1.2 evenly distributed in the circumferential direction, and the side of the adapter 3 is clamped in the recess 1.2 of the corresponding cavity plate 1 and fixed there by screws.

In an alternative embodiment, the adapter 3 is connected to the corresponding magnetic conductive plate 5 by screws.

In an optional embodiment, the central conductor 8 comprises a plurality of single bodies 8.2 which are stacked with a certain gap, the adjacent single bodies 8.2 are fixedly connected through welding, and the horizontal positions of three-end installation are ensured to be consistent through a tool. The single body 8.2 has a plurality of arms 8.2 extending outwardly from the center, and the connecting heads 8.3 are connected to the ends of the respective arms 8.2.

In an alternative embodiment, the cell 8.2 is an aluminum cell, the surface of which is provided with a silver coating. The cavity plate 1 and the connector base 3 are made of aluminum, and the magnetic circuit plate 6, the spiral cover plate 7 and the magnetic conduction plate 5 are made of steel.

In an alternative embodiment, the center of the magnetic circuit plate 6, where the spin cover plate 7 is mounted, is provided with a through hole 6.1 for mounting the spin cover plate 7.

In an alternative embodiment, permanent magnet 10 is a barium-iron permanent magnet.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.