Title :
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
fDate :
6/1/1990 12:00:00 AM
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;
Journal_Title :
Electron Devices, IEEE Transactions on
