Title :
Intermodulation and noise suppression of a linearized, low-noise hybrid microwave amplifier
Author :
Joo, J.H. ; Choi, J.J.
Author_Institution :
Dept. of Radio Sci. & Eng., Kwangwoon Univ., Seoul, South Korea
Abstract :
A new type of microwave amplifier module, consisting of a solid-state amplifier, a predistortion linearizer, and a traveling-wave-tube (TWT), is realized. Measurements show a noise figure of 2.2 dB at 9.5 GHz and the third-order intermodulation distortion ratio of 53 dBc at 10 dB back off from P1 dB point.
Keywords :
intermodulation distortion; microwave power amplifiers; noise; travelling wave tubes; 10 dB; 2.2 dB; 9.5 GHz; TWT; intermodulation distortion; linearized microwave amplifier; low-noise hybrid microwave amplifier; noise suppression; predistortion linearizer; solid-state amplifier; traveling-wave-tube; Circuits; FETs; High power amplifiers; Linearity; Low-noise amplifiers; Microwave amplifiers; Microwave devices; Noise figure; Power amplifiers; Predistortion; Microwave amplifier; TWT;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2004.838579
