Title :
1.5 kW solid-state pulsed microwave power amplifier for S-band radar application
Author :
Joo, J.H. ; Choi, G.W. ; Jang, S.M. ; Choi, J.J. ; Park, D.M.
Author_Institution :
Dept. of Radio Sci. & Eng., Kwangwoon Univ., Seoul, South Korea
Abstract :
This paper describes the design and performance of a 1.5 kW solid-state pulsed power amplifier, operating over 2.7-2.9 GHz at a duty of 10 percent and with a pulse width of 100 us for radar application. The solid-state pulsed power amplifier configures a series of 8-stage cascaded power amplifiers with different RF output power levels. Low loss Wilkinson combiners are used to combine output powers of six 300 W high power solid state modules. Tests show peak output power of 1.61 kW, corresponding to PAE of 26.2 % over 2.7-2.9 GHz with a pulse width of 100 us and a PRF of 1 kHz.
Keywords :
UHF bipolar transistors; UHF power amplifiers; elemental semiconductors; microwave bipolar transistors; microwave power amplifiers; radar equipment; silicon; 1.5 kW; 1.61 kW; 2.7 to 2.9 GHz; 26.2 percent; 300 W; S-band radar application; Si; Wilkinson combiners; cascaded power amplifiers; silicon bipolar junction transistor; solid-state pulsed microwave power amplifier; Microwave amplifiers; Power amplifiers; Power generation; Pulse amplifiers; Radar applications; Radio frequency; Radiofrequency amplifiers; Solid state circuits; Space vector pulse width modulation; Testing;
Conference_Titel :
Radio and Wireless Symposium, 2006 IEEE
Print_ISBN :
0-7803-9412-7
DOI :
10.1109/RWS.2006.1615122
