Title :
A high power amplifiers for L-band transmitter with AM modulation
Author :
W. Wojtasiak;D. Gryglewski;S. Zygadlo;A. Rutkowski
Author_Institution :
Inst. of Radioelectron., Warsaw Univ. of Technol., Poland
Abstract :
The 12 W class-A amplifier and the 500 W class-C pulsed amplifier for a transmitter with AM modulation are described. The designed linear amplifier, with GaAs MESFETs, exhibits a nonlinear distortion coefficient better than 20% for 60% AM modulation. The multistage class-C amplifier, based on bipolar transistors for IFF systems, assures 12% bandwidth and short pulse rise time T/sub r//spl les/100 ns.
Keywords :
"High power amplifiers","L-band","Transmitters","Pulse amplifiers","Pulse modulation","Gallium arsenide","MESFETs","Nonlinear distortion","Bipolar transistors","Bandwidth"
Conference_Titel :
Microwaves and Radar, 1998. MIKON ´98., 12th International Conference on
Print_ISBN :
83-906662-0-0
DOI :
10.1109/MIKON.1998.737917
