Broadband operation of a two-stage tapered gyro-TWT amplifier

Author

Park, Gwan Soo ; Choi, J.J. ; Park, Sung Yun ; Armstrong, C.M. ; Ganguly, A.K. ; Kyser, R.H.

Author_Institution

Naval Res. Lab., Washington, DC, USA

fYear

1993

fDate

5-8 Dec. 1993

Firstpage

351

Lastpage

353

Abstract

A two-stage Ka-band gyro-TWT amplifier experiment operating in the TE/sub 10/ rectangular tapered waveguide mode at the fundamental cyclotron frequency is underway at the Naval Research Laboratory. The objective of this program is to demonstrate the stable wideband operation of a low voltage tapered gyro-TWT having high gain and good gain uniformity. Initial experiments operating at 33 kV and 1.5 A have demonstrated a linear gain of 30 d8, saturated gain of 26 dB over an 8% 3 dB-bandwidth, and maximum efficiency of 15%. The operation is compared with theory.<>

Keywords

gyrotrons; microwave amplifiers; rectangular waveguides; travelling-wave-tubes; wideband amplifiers; 1.5 A; 15 percent; 26 dB; 30 dB; 33 kV; 33 to 39 GHz; EHF; Ka-band; MM-wave tube; Naval Research Laboratory; TE/sub 10/ rectangular tapered waveguide mode; broadband operation; fundamental cyclotron frequency; gain uniformity; high gain; low voltage tapered gyro-TWT; stable wideband operation; two-stage tapered gyro-TWT amplifier; Broadband amplifiers; Cyclotrons; Frequency; Gain; Laboratories; Low voltage; Operational amplifiers; Rectangular waveguides; Tellurium; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Electron Devices Meeting, 1993. IEDM '93. Technical Digest., International

Conference_Location

Washington, DC, USA

ISSN

0163-1918

Print_ISBN

0-7803-1450-6

Type

conf

DOI

10.1109/IEDM.1993.347336

Filename

347336