Four-stage depressed collector for space traveling-wave tube

A collector and traveling wave tube technology, applied in the field of collectors, can solve the problems of increasing the number of power supply circuits and increasing the complexity of the power supply, achieving good heat dissipation and improving recovery efficiency

Inactive Publication Date: 2011-06-29
INST OF ELECTRONICS CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

Theoretically, the more stages of multi-stage step-down collectors, the higher the recovery efficiency of collectors, but in fact, when the number of stages exceeds four, the increase in recovery efficiency is very small, and the number of power circuits required for the increase of stages also increases, increasing the complexity of the power

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  • Four-stage depressed collector for space traveling-wave tube
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  • Four-stage depressed collector for space traveling-wave tube

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Embodiment Construction

[0020] The technical solution adopted in the present invention is: each collector electrode and the outer cylinder of the collector are welded together by insulating ceramics, which not only ensures the insulation withstand voltage performance between each electrode and the outer cylinder, but also effectively transfers the heat of each electrode It is transmitted to the outer cylinder of the collector through insulating ceramics, which facilitates the heat dissipation of the outer cylinder of the collector and improves the heat dissipation capacity of the multi-stage step-down collector. Each collector assembly is arranged in sequence with gaps inside the collector outer cylinder, and the insulation performance between each collector assembly is guaranteed through a vacuum gap. The lead wires of each collector electrode pass through the insulating porcelain tube, and the insulation performance between the electrodes is guaranteed through the insulating porcelain tube. After t...

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Abstract

The invention relates to a four-stage depressed collector for a space traveling-wave tube. A first collector component, a second collector component, a third collector component and a fourth collector component are parallelly arranged inside a circular pipe-shaped collector outer cylinder in sequence in the axial direction, a certain insulating gap is formed between every two collector components, and the electrode lead of each collector passes through an insulating ceramic hole; each collector component comprises a collector electrode, electrode insulating ceramic and an electrode lead; the collector electrode is welded together with the collector outer cylinder through the insulating ceramic; the collector electrode is welded on the inner wall of the electrode insulating ceramic, the outer wall of the electrode insulating ceramic is welded together with the collector outer cylinder, and the electrode lead is directly welded together with the collector electrode and is insulated with other electrode through the insulating ceramic; and the collector outer cylinder is welded and fixed with a collector end cover to form the four-stage depressed collector.

Description

technical field [0001] The invention relates to a collector of a vacuum electronic device, in particular to a four-stage step-down collector that can improve the overall efficiency of a space traveling wave tube. Background technique [0002] Vacuum electronic devices (such as traveling wave tubes, klystrons, gyrotrons, etc.) are widely used in satellites, navigation and positioning, military surveying and mapping, microwave remote sensing, electronic reconnaissance and countermeasures, data transmission, etc., and are irreplaceable in military and civilian technical fields. [Reference: Liao Fujiang editor-in-chief, "Vacuum Electronics Technology" (Second Edition) - the heart of information weaponry, National Defense Industry Press, Beijing (2008)]. [0003] Vacuum electronic devices refer to active devices that generate signal amplification and conversion effects due to the transmission of electrons or ions between electrodes in a vacuum or gas medium. One of its important ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J23/027H01J25/34
Inventor 樊会明苏小保刘柳萍张淑君李莉赵世柯
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI
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