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

Fabrication of carbon-fiber cathode for high-power microwave applications

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)
Liu Lie ; Coll. of Sci., Nat. Univ. of Defense Technol., Hunan, China ; Wan Hong ; Zhang Jun ; Wen Jian-Chun
more authors

This paper reports the test results of our own carbon-fiber cathodes made by using the technique of liquid infiltration in vacuum. The technique is completely different from the conventional adhering techniques that were employed previously in constructing carbon-fiber cathodes. Our technique could be used to precisely control the distribution and pointing direction of the carbon-fiber tips on the cathode surface. In our technique, the carbon-fiber material and the base material (which is usually the metal that we use in making the cathodes) can be well compounded to become a novel composite material. Compared with frequently used metal cathodes, the voltage and current waveforms of our carbon-fiber cathodes were more stable and smooth, their turn-on times were shorter, and their durations were longer. These advantages were especially obvious for generating high-quality electron beams using long-pulse-driven devices. Experiments for producing high-power microwaves have also been done on the reflex triode virtual cathode oscillator using our carbon-fiber cathodes. The peak power of the microwave that was generated using our carbon-fiber cathode was increased by a factor of about 2-3 over the case of a stainless steel cathode under the same experimental conditions.

Published in:

Plasma Science, IEEE Transactions on  (Volume:32 ,  Issue: 4 )

Date of Publication:

Aug. 2004

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.