Title :
Feedforward linearisation of 950 MHz amplifiers
Author :
Stewart, R.D. ; Tusubira, F.F.
Author_Institution :
Dept. of Electron. & Comput. Sci., Southampton Univ., UK
fDate :
10/1/1988 12:00:00 AM
Abstract :
The application of feedforward linearisation to a 950 MHz, 1 W solid state amplifier is described. Results are given for a series of two-tone intermodulation distortion measurements. The effects of amplitude and phase errors in the linearisation circuit are also measured. It is shown that a 25 dB improvement in the intermodulation margin can be achieved over a bandwidth adequate for microcellular radio systems.
Keywords :
microwave amplifiers; solid-state microwave circuits; 1 W; 950 MHz; UHF; feedforward linearisation; microcellular radio systems; solid state amplifier; two-tone intermodulation distortion;
Journal_Title :
Microwaves, Antennas and Propagation, IEE Proceedings H
