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

Research output: Contribution to journalJournal article

Published

Journal publication date5/09/2005
JournalMicrowave and Optical Technology Letters
Journal number5
Volume46
Number of pages3
Pages433-435
Original languageEnglish

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.