High-power circulator and microdischarge-resistant design method thereof

A circulator and high-power technology, which is applied in the field of circulator and its anti-micro-discharge design, can solve the problems of large influence on the electrical performance of microwave components and increased loss, and avoid low-pressure discharge, small structure size, and micro-discharge power. high effect

Active Publication Date: 2017-10-13
XIAN INSTITUE OF SPACE RADIO TECH
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Problems solved by technology

This type of method leads to a general increase in loss and has a great impact on the electrical properties of microwave components

Method used

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  • High-power circulator and microdischarge-resistant design method thereof
  • High-power circulator and microdischarge-resistant design method thereof
  • High-power circulator and microdischarge-resistant design method thereof

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Embodiment 1

[0046] Embodiment 1: High-power Y-junction circulator and its anti-microdischarge design method

[0047] Such as Figure 5 As shown, the high-power circulator includes a metal cavity 1, a ferrite gyromagnetic substrate 2 and a dielectric slot 3, wherein a metal matching table 5 and a positioning groove 4 are processed on the metal cavity 1, and the ferrite The body gyromagnetic substrate 2 is located in the medium card slot 3, and the medium card slot 3 clamps the 2 ferrite gyromagnetic substrates in the metal cavity 1; the upper cover of the metal cavity 1 is installed on the base, and the upper cover and the A cavity is formed between the bases. The cavity includes a central area loaded with a ferrite gyromagnetic substrate 2 and three ports. The three ports are respectively connected to external lines. When an electromagnetic wave of a certain frequency is incident on a port, the electromagnetic wave It is output by the next port of the ring, and has a certain degree of is...

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Abstract

The invention discloses a high-power circulator. The high-power circulator comprises a metal cavity (1), a ferrite gyromagnet substrate (2) and a medium neck (3), wherein the metal cavity (1) comprises an upper cover and a base, grooves are formed in the upper cover and the base at mirror symmetry positions, the upper cover is mounted on the base, and a cavity is formed between the upper cover and the base; the ferrite gyromagnet substrate (2) is positioned inside the medium neck (3); the medium neck (3) is mounted in the cavity of the metal cavity (1) and is positioned between the groove of the upper cover and the groove of the base, so that the ferrite gyromagnet substrate (2) clings to the metal cavity (1). According to the method disclosed by the invention, the strongest field intensity is firstly concentrated on a gyromagnet substrate area through initial electrical performance design optimization, then multilayer concentric medium circular rings are loaded in the area to form the medium neck with dielectric constant of space variation, then electrical performance optimization and microdischarge simulating optimization are further carried out, and microdischarge electron orbit blocking is realized under the premise of meeting actual electrical performance requirement, so that the microdischarge threshold value power is effectively promoted.

Description

technical field [0001] The invention relates to a circulator and an anti-micro-discharge design method thereof. Background technique [0002] The high microdischarge risk of high-power microwave components of spacecraft is a key factor affecting the long life and high reliability of spacecraft payloads, and it is also the largest single-point failure link of satellites under high-power applications. [0003] Traditional microdischarge suppression methods are mainly divided into two categories: physical suppression methods and chemical suppression methods. Among them, the physical suppression method mainly realizes the improvement of the micro-discharge threshold by increasing the distance between the metal surfaces at the maximum electric field intensity of the microwave component. For spacecraft microwave components, due to the strict control of their volume and quality, the method of increasing the micro-discharge threshold by increasing the physical size has great limita...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/383H01P11/00
CPCH01P1/383H01P11/00
Inventor 李韵崔万照贺永宁
Owner XIAN INSTITUE OF SPACE RADIO TECH
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