Unlock instant, AI-driven research and patent intelligence for your innovation.

Highly reliable novel microwave circulator for aerospace

A circulator, a reliable technology, applied in the direction of waveguide devices, electrical components, circuits, etc., can solve the problems of unfavorable circulator design and processing, deterioration of circulator performance, and increased processing cost, so as to achieve low processing cost, avoid heat generation and breakage, Effect of increasing power capacity

Active Publication Date: 2019-06-07
CHINA AEROSPACE TIMES ELECTRONICS CORP
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If there is a small air gap between the groove and the surface of the ferrite to avoid squeezing the ferrite, once the ferrite falls off the cavity, the performance of the circulator will deteriorate sharply or even fail to work normally
And it is necessary to strictly control the tolerance of the grooves at both ends of the medium and the assembly accuracy, resulting in increased processing costs and increased assembly difficulty, which is not conducive to the design and processing of the circulator

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Highly reliable novel microwave circulator for aerospace
  • Highly reliable novel microwave circulator for aerospace
  • Highly reliable novel microwave circulator for aerospace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 , 2 As shown, a new high-reliability microwave circulator for aerospace is composed of an upper shell 1 and a lower shell 2 connected to form a circulator shell. There is a matching structure 3 on one end surface of the upper casing 1 for adjusting microwave performance. The matching structure 3 includes a Y-shaped boss and a cylindrical boss, which are integrally formed with the upper casing 1 and used for adjusting microwave parameters. The top-spinning ferrite 4 is fixed on the cylindrical boss of the matching structure 3 by using an adhesive acetal glue. The lower casing 2 and the down-spin ferrite 5 perform the same operation.

[0030] Place the lower housing 2 on the platform, and the dielectric ring 6 is set on the cylindrical boss of the matching structure 3 and the periphery of the down-spin ferrite 5. The inner radius of the dielectric ring 6 is determined by the cylindrical matching structure and the radius of the ferrite. It is 0.03mm-0....

Embodiment 2

[0034] Such as image 3 , 4 As shown, the boss of the matching structure 3 is a triangular boss with tuning posts for adjusting microwave performance. The dielectric ring 6 is sleeved on the periphery of the ferrite, and is fixed on the triangular boss by extrusion when one end of the installation matching structure 3 of the upper shell 1 and the lower shell 2 is fixedly connected.

Embodiment 3

[0036] Such as Figure 5 As shown, after the upper shell 1 and the lower shell 2 are connected by screws, a permanent magnet fixing part 9 is installed outside. The permanent magnet fixing part 9 is a U-shaped structure, and is connected with the housing by screws. The permanent magnet fixing part 9 is made of electromagnetic pure iron material, has good magnetic permeability, and forms a closed magnetic circuit with the permanent magnet 8, which can reduce the magnetic leakage of the circulator and reduce the impact on surrounding devices.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Radiusaaaaaaaaaa
Login to View More

Abstract

The invention discloses a highly reliable novel microwave circulator for aerospace, and belongs to the technical field of microwave isolators. The microwave circulator includes an upper shell, a lowershell, matching structures, upper gyromagnetic ferrite, lower gyromagnetic ferrite, a dielectric ring, a dielectric spring and a permanent magnetic body; the matching structures are fixedly installedon the end faces on the inner sides of the upper and lower shells; the upper and lower gyromagnetic ferrite are fixed on the matching structures of the upper and lower shells through a bonding agent;the dielectric ring is installed on the upper gyromagnetic ferrite and the matching structures; the dielectric spring is located in the dielectric ring and between the two gyromagnetic ferrite; and the permanent magnetic body is installed on the upper position of the ferrite on the other ends of the upper and lower shells. The microwave circulator is good in performance, and can withstand power which can reach kW magnitude; the dielectric ring can assist to locate the upper and lower gyromagnetic ferrite; the dielectric spring can support the upper and lower gyromagnetic ferrite; and therefore, the microwave circulator is stable and reliable in structure and low in processing and assembling.

Description

technical field [0001] The invention relates to a microwave and radio frequency component, in particular to a novel high-reliability microwave circulator for aerospace, belonging to the technical field of microwave isolators. Background technique [0002] Microwave circulator is an anisotropic element, which has very important applications in microwave and radio frequency fields. The circulator can be connected behind the power source to protect the power source by using its unidirectional transmission characteristics, and can also be used as a transceiver switch to effectively isolate the transceiver path and ensure the normal operation of the link. The circulators used in the aerospace environment are required to be able to withstand high power and ensure reliability. [0003] Adding an insulating medium in the cavity of the circulator can hinder the movement of electrons, reduce the number of secondary electrons, suppress the occurrence of micro-discharge, and improve th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01P1/38
Inventor 李心怡蔡立兵张军傲相东苌群峰李刚
Owner CHINA AEROSPACE TIMES ELECTRONICS CORP