A HIGH-POWER, TRAVELING-WAVE TUBE AMPLIFIER

被引：58

作者：

SHIFFLER, D ^{[1
]}

NATION, JA ^{[1
]}

KERSLICK, GS ^{[1
]}

机构：

[1] CORNELL UNIV,SCH ELECT ENGN,ITHACA,NY 14853

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 1990年 / 18卷 / 03期

关键词：

D O I：

10.1109/27.55926

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

High-power X-band Traveling Wave Tube amplifiers (TWT's) have been fabricated and tested. The tubes have gains ranging from 13 to 35 dB at 8.76 GHz and output powers ranging from 3 to 100 MW. The amplifiers are driven by the interaction of a slow space-charge wave, propagating on an electron beam, with an electromagnetic wave supported by the structure. The electron beam, which is produced from a magnetic-field-immersed field-emission cathode, has an energy of 850 keV, a current in the 1-kA range, and a pulse duration of 100 ns. The amplifiers are designed to operate as narrow-band devices in the TM01, mode. In this paper we report on the amplifier characteristics and compare their performance with those calculated using conventional TWT theory. The scaling of the gain and bandwidth with the beam current are approximately as expected from theory, but the absolute magnitude of the gain is somewhat greater than expected. © 1990 IEEE

引用

页码：546 / 552

页数：7

共 12 条

[1]

ALLEN MA, 1988, INPRESS JUN P EUR PA

[2] CALCULATION OF TM0N DISPERSION-RELATIONS IN A CORRUGATED CYLINDRICAL WAVEGUIDE [J].