High power traveling wave tube using ferroelectric electron gun

song xiao-xin; liu guo-zhi; nation j a; hayashi y

Volume 17 Issue 08

Aug. 2005

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Article Navigation > High Power Laser and Particle Beams > 2005 > 17(08): 0-

xie yan-zhao, sun bei-yun, zhou hui-, et al. High-altitude electromagnetic pulse environment over the lossy ground[J]. High Power Laser and Particle Beams, 2003, 15.

Citation:

song xiao-xin, liu guo-zhi, nation j a, et al. High power traveling wave tube using ferroelectric electron gun[J]. High Power Laser and Particle Beams, 2005, 17.

xie yan-zhao, sun bei-yun, zhou hui-, et al. High-altitude electromagnetic pulse environment over the lossy ground[J]. High Power Laser and Particle Beams, 2003, 15.

Citation:

song xiao-xin, liu guo-zhi, nation j a, et al. High power traveling wave tube using ferroelectric electron gun[J]. High Power Laser and Particle Beams, 2005, 17.

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High power traveling wave tube using ferroelectric electron gun

1.
Northwest Institute of Nuclear Technology,P.O.Box 69-13,Xi'an 710024,China;
2.
Cornell University,School of Electrical and Engineering,Ithaca,NewYork,14850,USA

Publish Date: 2005-08-15

Abstract

Abstract

A high power traveling wave tube (TWT) using a ferroelectric cathode as the electron source is reported. The Ferroelectric electron gun (FEG) consists of PLZT ceramic and field enhancing grids, which allows an electron beam to be extracted from the FEG with relatively high beam quality. With the peak current exceeding 100 A, the electron beam is compressed downstream, before it enters into the slow wave structure of the TWT. Both the theoretical analysis and the experimental results show that the mechanism of electron emission is rather complicated. Nevertheless, the radio frequency experiment suggests that the TWT be capable of producing a microwave output at X-band (9.15 GHz), with a band-width of 580 MHz. The measured maximum output power is 5.8 MW, corresponding to 25.2 dB gain. This p
- ferroelectric cathode,
- electron beam traveling wave tube,

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