Miniaturized substrate integrated waveguide circulator

A substrate-integrated waveguide and circulator technology, applied in the field of microwave technology, can solve problems such as large size and unfavorable integration, achieve high Q value, facilitate integration, and reduce volume

Inactive Publication Date: 2012-03-14
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Applying the theory of substrate-integrated waveguides to the design of circulators can solve the problems of traditional waveguide circulators with large size and unfavorable integration

Method used

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  • Miniaturized substrate integrated waveguide circulator
  • Miniaturized substrate integrated waveguide circulator
  • Miniaturized substrate integrated waveguide circulator

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Embodiment Construction

[0018] In the present invention, the metallized through hole forms a waveguide structure, and two composite graded microstrip lines are arranged in the waveguide, which enhances the matching performance of the device and is beneficial to the miniaturization and integration of the whole device.

[0019] The present invention includes the central junction part of the circulator ( image 3 Shown) and the microstrip conversion connection part ( Figure 4 , 5 shown). The substrate of the entire circulator is a double-sided copper-clad high-frequency dielectric board Taconic CER-10, with a relative dielectric constant of 10, a loss tangent of 0.0035, and a thickness of 0.762mm.

[0020] image 3 It is the central junction part of the circulator, which is composed of three substrate-integrated waveguide structures (6-8) forming an angle of 120° and a central ferrite cylinder (5). The three substrate integrated waveguide structures are realized by opening metallized through holes ...

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Abstract

The invention discloses a miniaturized substrate integrated waveguide circulator, and relates to the technology of microwave. A circulator centre junction part and a micro-strip converting and connecting part arranged at an output port are arranged on a medium base plate of which two sides are respectively provided with a metal layer, wherein the centre junction part comprises three substrate integrated waveguide structures which are mutually to be 120 degrees and a center ferrite body column, the micro-strip converting and connecting part comprises a linear gradually-changing micro-strip line arranged at a first port and two composite gradually-changing micro-strip lines symmetrically arranged at a second port and a third port along with an axis, the linear gradually-changing micro-strip line is arranged on a symmetry axis, each composite gradually-changing micro-strip line comprises an arc gradually-changing part and a linear gradually-changing part, the centre junction part is respectively connected with a 50-ohm micro-strip line interface by the linear gradually-changing micro-strip line and the two composite gradually-changing micro-strip lines, and the two composite gradually-changing micro-strip lines are arranged in a waveguide structure. The miniaturized substrate integrated waveguide circulator is better in performance, smaller in volume, lighter in weight, and higher in integrated level.

Description

technical field [0001] The present invention relates to microwave technology. Background technique [0002] Microwave ferrite circulator is a non-reciprocal microwave device that is widely used. It can be used as an antenna transceiver switch in radar to separate input and output signals, incident waves and reflected waves. It can also be used in microwave transmission systems and measurement Do isolators, etc. in the system. In addition, circulators can also be used as antenna sharing devices in base stations and mobile stations in mobile communications, as input and output modules of power amplifiers and switching amplifiers in transmitting and receiving systems, and as decoupling in measurement systems. [0003] With the rapid development of modern mobile communications, microwave ferrite circulators will have broader application prospects, but the requirements for device miniaturization and integration are becoming more and more important. Although the traditional wave...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/387
Inventor 陈良刘松林汪晓光邓龙江汪蔚
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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