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Yield improvement via helix-pitch profile adjustment in multisection helix traveling-wave tubes

Research output: Contribution to journalJournal article

Published
<mark>Journal publication date</mark>5/09/2005
<mark>Journal</mark>Microwave and Optical Technology Letters
Issue number5
Volume46
Number of pages3
Pages (from-to)433-435
<mark>State</mark>Published
<mark>Original language</mark>English

Abstract

Yield control in multisection helix traveling-wave tubes (TWTs) is a fundamental issue in the manufacturing process. Assuming TWT small-signal gain as a design goal, yield degradation due to the helix-pitch manufacturing error is investigated in depth. The relevant contribution of the sections with lower helix pitch is studied. Oil the basis of the obtained results, indications,for defining the helix-pitch profile that provide a better compromise between yield and performance are given. (c) 2005 Wiley Periodicals, Inc.