Title :
Third-order intermodulation distortion in microwave amplifier
Author :
Agarwal, K.K. ; Kuo, Y.L.
Author_Institution :
Bell Laboratories, North Andover, USA
Abstract :
Third-order intermodulation distortions of a microwave GaAs f.e.t. amplifier are analysed using a simple nonlinear model for the device. If the amplifier has strong feedback at low frequencies, the second-order interactions may dominate and degrade the third-order distortions. Solutions are presented to eliminate this distortion degradation. The analysis is very well substantiated by measurements.
Keywords :
field effect transistor circuits; intermodulation; microwave amplifiers; solid-state microwave circuits; GaAs FET amplifier; distortion degradation; microwave amplifier; nonlinear model; third order intermodulation distortion;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19780191
