阅读说明：本技术 一种w波段差相移式铁氧体开关 (W-waveband phase-difference phase-shift ferrite switch ) 是由 黄涛 陶梦婷 于 2020-12-24 设计创作，主要内容包括：本发明提供了一种W波段差相移式铁氧体开关,包括移相段、电桥、双T、磁路板、线包和铁氧体；所述移相段具有在第一直线方向上相对设置的两个端部以及连通两个端部的波导腔,其中一个端部与所述电桥相连接,另一个端部与所述双T相连接；所述磁路板以垂直于所述第一直线方向的方式与所述移相段相连接,所述线包与所述磁路板相连接,所述铁氧体设置在所述移相段的波导腔内。本发明带来的有益效果是：能够提高响应速度、提高可靠性并降低自身损耗。(The invention provides a W-waveband difference phase-shift ferrite switch, which comprises a phase-shift section, an electric bridge, double T, a magnetic circuit board, a coil and ferrite, wherein the phase-shift section is provided with a first end and a second end; the phase shift section is provided with two end parts which are oppositely arranged in a first straight line direction and a waveguide cavity which is communicated with the two end parts, wherein one end part is connected with the bridge, and the other end part is connected with the double T; the magnetic circuit board is connected with the phase shift section in a mode of being perpendicular to the first straight line direction, the coil is connected with the magnetic circuit board, and the ferrite is arranged in a waveguide cavity of the phase shift section. The invention has the following beneficial effects: the response speed can be improved, the reliability can be improved, and the self-loss can be reduced.)

1. A W-waveband phase difference phase shift type ferrite switch is characterized by comprising a phase shift section (1), an electric bridge (2), double T (3), a magnetic circuit board (4), a coil (5) and a ferrite (6); the phase-shifting section (1) is provided with two end parts oppositely arranged in a first straight line direction (I) and a waveguide cavity (1.2) communicated with the two end parts, wherein one end part is connected with the bridge (2), and the other end part is connected with the double T (3); the magnetic circuit board (4) is perpendicular to the first straight line direction (I) and connected with the phase-shifting section (1), the coil (5) is connected with the magnetic circuit board (4), and the ferrite (6) is arranged in a waveguide cavity (1.2) of the phase-shifting section (1).

2. A W-band differential phase shift ferrite switch according to claim 1, characterized in that the ferrite (6) is glued to the inner wall of the waveguide cavity (1.2) of the phase shift section (1) by means of an acetal stoving glue.

3. A W-band phase-shift ferrite switch according to claim 1, characterized in that a first matching block (7) is installed in the waveguide cavity (2.1) of the bridge (2), and the waveguide cavity (2.1) of the bridge (2) and the waveguide cavity (1.2) of the phase-shifted section (1) are communicated with each other in the first linear direction (I).

4. A W-band phase-shift ferrite switch according to claim 1, characterized in that the double T (3) has a cavity arranged perpendicular to the first linear direction (I), which cavity is connected to the connection end (8.1) of the second matching block (8).

5. A W-band phase-shift ferrite switch according to claim 4, characterized in that the connection end (8.1) of the second matching block (8) is soldered to the cavity of the double T (3).

6. The W-band phase difference phase shift ferrite switch according to claim 1, wherein the phase shift section (1), the bridge (2) and the double T (3) have flange structures, and the flange structures of the three are connected in sequence by screws.

7. The W-band phase-shift ferrite switch according to claim 6, wherein the end faces of said flange structures are each provided with a positioning pin hole and a positioning pin matching the corresponding positioning pin hole.

8. A W-band phase-shift ferrite switch according to claim 1, characterized in that the waveguide cavities of the phase-shift section (1), the bridge (2) and the double T (3) are all of a compressed waveguide width structure.

9. A W-band difference phase shift ferrite switch according to claim 1, wherein said ferrite (6) is a composite structure of NiZn ferrite having a magnetic induction of 5000Gs and a ceramic body having a dielectric constant of 40.

10. A W-band phase shift ferrite switch according to claim 9, characterized in that said ferrite (6) is provided with four pieces, each piece having a thickness of 0.2mm-0.3 mm.

Technical Field

The invention belongs to the technical field of ferrite switches, and particularly relates to a W-band phase difference phase shift type ferrite switch.

Background

The W wave band has the advantages of microwave and infrared due to the frequency in the millimeter wave atmospheric window, such as: the high-frequency-band microwave radar has the advantages of wide absolute frequency band, short wavelength, narrow beam and the like, is a very important electromagnetic wave spectrum, and has huge application prospects in the fields of high-resolution radars, high-precision positioning and guidance, high-speed communication and the like, so that the high frequency band is an important direction for the development of the current microwave technology. With the development of technology, the application of the W band is becoming mature, the function of the microwave system is becoming more powerful, and the number of channels is increasing. In order to switch signals between different channels, a microwave switch is inevitably required.

The ferrite switch is especially important for adapting to the development of the modern radar transceiving component technology and developing a new ferrite switch with high response speed, high reliability, small self loss, compact structure, low cost, small volume, convenient assembly and good consistency.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: provided is a W-band phase-difference-shifted ferrite switch which can improve response speed, improve reliability, and reduce self-loss.

The invention is realized by the following steps: a W-band phase difference phase shift type ferrite switch comprises a phase shift section, an electric bridge, double T, a magnetic circuit board, a coil and ferrite; the phase shift section is provided with two end parts which are oppositely arranged in a first straight line direction and a waveguide cavity which is communicated with the two end parts, wherein one end part is connected with the bridge, and the other end part is connected with the double T; the magnetic circuit board is connected with the phase shift section in a mode of being perpendicular to the first straight line direction, the coil is connected with the magnetic circuit board, and the ferrite is arranged in a waveguide cavity of the phase shift section.

Further, the ferrite is adhered to the inner wall of the waveguide cavity of the phase-shifting section through acetal drying glue.

Further, a first matching block is installed in a waveguide cavity of the bridge, and the waveguide cavity of the bridge and the waveguide cavity of the phase-shifting section are communicated with each other in the first linear direction.

Further, the double T is provided with a cavity which is perpendicular to the first linear direction, and the cavity is connected with the connecting end of the second matching block.

Further, the connecting end of the second matching block is connected with the cavity of the double T in a welding mode.

Furthermore, the phase shift section, the bridge and the double T are all provided with flange structures, and the flange structures of the phase shift section, the bridge and the double T are sequentially connected through screws.

Furthermore, the end face of the flange structure is provided with a positioning pin hole and a positioning pin matched with the corresponding positioning pin hole.

Furthermore, the waveguide cavities of the phase-shifting section, the bridge and the double T adopt a structure of compressing the width of the waveguide.

Further, the ferrite is a composite structure of NiZn ferrite and a ceramic body, the magnetic induction intensity of the NiZn ferrite is 5000Gs, and the dielectric constant of the ceramic body is 40.

Further, the ferrite is provided with four pieces, and the thickness of each piece of ferrite is 0.2mm-0.3 mm.

The invention has the following beneficial effects: the response speed can be improved, the reliability can be improved, and the self-loss can be reduced.

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 top view of the structure of the embodiment shown in FIG. 1;

FIG. 5 is a right side view of the structure of the embodiment shown in FIG. 1;

fig. 6 is a structural rear view of 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 W-band phase difference shift type ferrite switch includes a phase shift section 1, a bridge 2, a double T3, a magnetic circuit board 4, a coil 5 and a ferrite 6. The phase-shifting section 1 has two opposite ends arranged in the first linear direction I, one of which is connected to the bridge 2 and the other of which is connected to the double T3, and a waveguide cavity 1.2 connecting the two ends. The magnetic circuit board 4 is connected with the phase shift section 1 in a manner perpendicular to the first straight direction I, the coil 5 is mounted on the magnetic circuit board 4 through the pin 9, and the ferrite 6 is arranged in the waveguide cavity 1.2 of the phase shift section 1. The response speed is improved by the excitation of the ferrite 6 by the coil 5. The switch structure of the invention can improve the reliability in the using process.

As a way of fixing the ferrite 6, in an alternative embodiment the ferrite 6 is glued to the inner wall of the waveguide cavity 1.2 of the phase shifting section 1 by means of an acetal stoving glue.

As a way of reducing the operation error, in an alternative embodiment, the first matching block 7 is installed in the waveguide cavity 2.1 of the bridge 2, and the waveguide cavity 2.1 of the bridge 2 and the waveguide cavity 1.2 of the phase-shifting section 1 are communicated with each other in the first linear direction I. The first matching block 7 is connected with the waveguide cavity 2.1 of the bridge 2 in a welding mode, the positioning size of the first matching block 7 in the waveguide cavity 2.1 of the bridge 2 is guaranteed, operating procedures of a designer are effectively reduced, and operating errors are avoided.

As a function similar to the first matching block 7, in an alternative embodiment the double T3 has a cavity arranged perpendicular to the first linear direction I, which cavity is connected to the connection end 8.1 of the second matching block 8. The connecting end 8.1 of the second matching block 8 is connected with the cavity of the double T3 in a welding mode. The positioning size of the connecting end 8.1 of the second matching block 8 in the cavity of the double T3 is ensured, the operation procedures of a designer are effectively reduced, and operation errors are avoided. The first matching block 7 and the second matching block 8 are both metal blocks.

As an alternative, in an embodiment, the phase shift section 1, the bridge 2, and the double T3 are all made of copper, and have flange structures, and the flange structures of the two are connected in sequence by screws. Similarly, the phase shift section 1 is connected to the magnetic circuit plate 4 by screws.

As an alternative embodiment, in the phase shift section 1, the end face of the flange structure is provided with a positioning pin 1.1 and a positioning pin hole, the end face of the flange structure of the bridge 2 is provided with a positioning pin 2.2 and a positioning pin hole, and the end face of the flange structure of the double T3 is provided with a positioning pin 3.1 and a positioning pin hole. The three parts are positioned through the corresponding positioning pins and the corresponding positioning pin holes when being connected, so that the consistency of the aperture positions of the three parts is ensured.

As a way to improve performance, in an alternative embodiment, the waveguide cavities of the phase-shifting section 1, the bridge 2 and the double T3 are all in a compressed waveguide width structure. The design can avoid the high order mode phenomenon easily appearing at the high frequency end, effectively increase the bandwidth, the circulator experimental test bandwidth can realize the large bandwidth operation, and the compressed waveguide width reduces the volume and the weight of the whole circulator.

In an alternative embodiment, ferrite 6 is a composite structure of NiZn ferrite and a ceramic body, the magnetic induction intensity of the NiZn ferrite is 5000Gs, and the dielectric constant of the ceramic body is 40.

In an alternative embodiment, the ferrite 6 is provided in four pieces, each piece having a thickness of 0.2mm to 0.3 mm. The ferrite phase shifter is reduced in self loss, and the average power capacity is improved.

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.