Title :
Improved noise characteristics of an X-band helix-TWT driven by a low noise solid state amplifier
Author :
Joo, Ji Han ; Son, Min Ho ; Na, Young Ho ; Choi, Jin Joo
Author_Institution :
Dept. of Radio Sci. & Eng., Kwangwoon Univ., Seoul, South Korea
Abstract :
In this paper, design and experimental study on X-band power amplifier module, consisting of a low-noise solid state amplifier and a low-gain helix-TWT were presented. The overall module gain is designed to be 45 db for SSA and 27 db for TWT, respectively.
Keywords :
electron device noise; microwave power amplifiers; travelling wave amplifiers; travelling wave tubes; 27 dB; 45 dB; Pierce theory; X-band helix TWT; X-band power amplifier module; low noise solid state amplifier; nonlinear numerical simulation code; Frequency measurement; High power amplifiers; Low-noise amplifiers; Microwave amplifiers; Multichip modules; Noise figure; Noise measurement; Power generation; Radiofrequency amplifiers; Solid state circuits;
Conference_Titel :
Vacuum Electronics, 2003 4th IEEE International Conference on
Print_ISBN :
0-7803-7699-4
DOI :
10.1109/IVEC.2003.1286085
