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Thermal Behavior of Multiple Electrode—Ceramic Joints in Vacuum Used in Travelling Wave Tubes

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Considerable attention has been focused to increase reliability by improving the thermal and structural integrity of a multi-stage depressed collector (MDC) used in traveling wave tubes (TWTs) for space application. High reliable TWTs can be achieved by careful consideration of design requirements and constraints, material selection, weight reduction, and cost effectiveness. In a TWT, maximum heat generated is in MDC due to maximum power dissipation, and, hence needs for proper thermal management. This paper shows the heat dissipation in the MDC, study with different materials of electrodes and ceramics for proper heat dissipation have been obtained. In addition of the above stress developed at ceramic joint also have been studied by finite element simulation method.
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Keywords: MDC Collector; TWT; Thermal Analysis

Document Type: Research Article

Affiliations: 1: Department of Physics, Banasthali University, Banasthal 304022, Rajasthan, India 2: Microwave Tubes Division, CSIR—Central Electronics Engineering Research Institute, Pilani 333031, Rajasthan, India

Publication date: November 1, 2016

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  • ADVANCED SCIENCE LETTERS is an international peer-reviewed journal with a very wide-ranging coverage, consolidates research activities in all areas of (1) Physical Sciences, (2) Biological Sciences, (3) Mathematical Sciences, (4) Engineering, (5) Computer and Information Sciences, and (6) Geosciences to publish original short communications, full research papers and timely brief (mini) reviews with authors photo and biography encompassing the basic and applied research and current developments in educational aspects of these scientific areas.
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