A wide-band millimeter-wave gyrotron traveling-wave amplifier experiment

Author

Chu, Kwo Ray ; Barnett, Larry R. ; Lau, Wai Keung ; Chang, Lung Hai ; Chen, Han Ying

Author_Institution

Dept. of Phys., Nat. Tsing Hua Univ., Hsinchu, Taiwan

Volume

37

Issue

6

fYear

1990

fDate

6/1/1990 12:00:00 AM

Firstpage

1557

Lastpage

1560

Abstract

A saturated instantaneous bandwidth (FWHM) of at least 10% in a Ka-band gyrotron traveling-wave tube (gyro-TWT) with uniform interaction waveguide and magnetic field was obtained. A relatively low α(≡ν_⊥/ν_||) beam has resulted in stable saturated operation and broad bandwidth. This, together with the overall performance of the tube (18.4-kW maximum power at 18.6% efficiency and 18-dB gain), strongly reinforces the possibility of developing a new generation of millimeter traveling-wave amplifiers based on the gyro-TWT

Keywords

gyrotrons; microwave amplifiers; travelling-wave-tubes; wideband amplifiers; 18 dB; 18.4 kW; 18.6 percent; EHF; Ka-band; MM-wave; broad bandwidth; efficiency; gain; gyro-TWT; gyrotron traveling-wave amplifier; gyrotron traveling-wave tube; maximum power; millimeter traveling-wave amplifiers; millimeter-wave; performance; saturated instantaneous bandwidth; stable saturated operation; uniform interaction waveguide; uniform magnetic field; wideband TWA; Bandwidth; Broadband amplifiers; Couplers; Detectors; Frequency; Gain; Gyrotrons; Magnetic fields; Pulse modulation; Stability;

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/16.106257

Filename

106257