Title :
Linear TWT with feedforward linearizing circuit
Author :
Son, Min Ho ; Joo, Ji Han ; Na, Young Wo ; Choi, Jin Joo
Author_Institution :
Dept. of Radio Sci. & Eng., Kwangwoon Univ., Seoul, South Korea
Abstract :
The travelling wave tube has great potential to provide high power for wireless communication. However, its poor linearity has limited its application. This paper describes a feedforward linear technology for improving a TWT linearity where a dual loop is implemented in order to reduce IMD components of the TWT. A low gain, X-band helix-TWT is designed by the use of the Pierce theory and nonlinear numerical simulations codes.
Keywords :
nonlinear codes; numerical analysis; travelling wave tubes; IMD components; Pierce theory; TWT; X-band helix-TWT; dual loop; feedforward linear technology; feedforward linearizing circuit; nonlinear numerical simulations codes; travelling wave tubes; Circuits; Couplers; Linearity; Loss measurement; Low-noise amplifiers; Noise figure; Noise measurement; Phase shifters; Varactors; Voltage;
Conference_Titel :
Vacuum Electronics, 2003 4th IEEE International Conference on
Print_ISBN :
0-7803-7699-4
DOI :
10.1109/IVEC.2003.1286359
