Antenna mounted EHF TWTA technology

Author

Simmons, James ; Ewan, Mark

fYear

1989

fDate

15-18 Oct 1989

Firstpage

311

Abstract

The authors discuss the development of a conductance-cooled, highly efficient dual depressed collector EHF TWTA (extremely high-frequency traveling wave tube amplifier) suitable for antenna mounting immediately behind the feed. This 25-W output power unit includes EMP (electromagnetic pulse) design and a self-contained, compact, line replaceable unit (LRU) high-voltage power supply. The 44 GHz 35 W TWT exhibits efficiency far exceeding that of other available technology and is easily expandable to the 100 W level with existing TWTs. This innovative design utilizes the development of an integrated waveguide component (IWC), which includes filter, circulator, and directional couplers in one low loss unit to maximize output power. The performance of the present development and prediction of future trends of TWT transmitters for EHF application are presented

Keywords

electromagnetic pulse; power amplifiers; satellite ground stations; transmitters; travelling-wave-tubes; waveguide components; 100 W; 25 W; 35 W; 44 GHz; EHF TWTA; EMP design; TWT transmitters; antenna mounting; circulator; conductance cooled TWTA; directional couplers; dual depressed collector TWTA; electromagnetic pulse; filter; high-voltage power supply; integrated waveguide component; line replaceable unit; low loss unit; military systems; performance; power unit; satellite ground terminals; traveling wave tube amplifier; Antenna feeds; Directional couplers; EMP radiation effects; Electromagnetic waveguides; Filters; Power amplifiers; Power generation; Pulse amplifiers; Pulsed power supplies; Waveguide components;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference, 1989. MILCOM '89. Conference Record. Bridging the Gap. Interoperability, Survivability, Security., 1989 IEEE

Conference_Location

Boston, MA

Type

conf

DOI

10.1109/MILCOM.1989.103945

Filename

103945