Title :
Improved noise Characteristics of a helix-TWT combined with a low-noise solid-State amplifier
Author :
Joo, Ji Han ; Choi, Jin Joo
Author_Institution :
Dept. of Radio Sci. & Eng., Kwangwoon Univ., Seoul, South Korea
fDate :
6/1/2004 12:00:00 AM
Abstract :
An X-band microwave amplifier module consisting of a low-noise solid-state amplifier and a low-gain helix traveling-wave-tube (TWT) is designed and fabricated. Measured microwave characteristics are found to be significantly improved compared with conventional helix-TWTs.
Keywords :
microwave power amplifiers; travelling wave amplifiers; travelling wave tubes; TWT; X-band microwave amplifier module; low-gain helix traveling-wave-tube; low-noise solid-state amplifier; FETs; Gain; High power amplifiers; Low-noise amplifiers; Microwave amplifiers; Multichip modules; Noise figure; Power amplifiers; Power generation; Solid state circuits; MPM; Microwave power module; TWT; noise figure; traveling-wave-tube;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2004.828801
