Cart (Loading....) | Create Account
Close category search window

Estimation Method for Self-Impedance's Real Part of Multigap Output Cavity of Klystrons Using Group Delay

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

6 Author(s)
Liang, Y. ; Key Laboratory of High Power Microwave Source and Technologies, Chinese Academy of Sciences, Beijing, China ; Zhao, D. ; Zhang, Z. ; Ruan, C.
more authors

A new estimation method by group delay for the real part of the self-impedance of multigap (two or more gaps) output cavity of klystrons is presented. Although these electromagnetic data can be easily obtained by using electromagnetic simulation (e.g., MWS or HFSS), we still need a cold test to confirm and adjust the values because in actual manufacturing, there are several steps that can slightly change the sizes of cavities and the parameters of high frequency. The traditional impedance measurement method for output cavity needs three steps, i.e., open, short, and perturbation, and the problems caused by a multigap cavity in the measurement of middle gaps (excluding the gaps at two sides) will meet difficulties when setting perturbation and short states. Beginning with microwave network theory and aiming at three-gap output cavity, this paper finally establishes the relationship between the group delay and the real part of the self-impedance of the output cavity. Then, the new method is no longer limited by the number of gaps through eliminating the perturbation and the short states of the traditional method. Using the new and traditional methods, a double-gap output cavity of an S-band klystron has been separately measured. Moreover, the feasibility of the method has also been verified by comparing their results. Finally, the relevant results of the five-gap output cavity of an X-band sheet-beam klystron are given.

Published in:

Plasma Science, IEEE Transactions on  (Volume:41 ,  Issue: 8 )

Date of Publication:

Aug. 2013

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.