Title :
Evaluation and correction of time dependent amplifier non-linearity
Author :
Katz, A. ; Dorval, R.
Author_Institution :
Trenton State Coll., USA
Abstract :
Both very high linearity and wide bandwidth are required by many new microwave and wireless systems. The linearity of power amplifiers degrades with increasing signal bandwidth. This paper shows that this degradation is related to time-dependent changes in amplifier transfer characteristics. A new method for evaluating an amplifier´s wideband, dynamic, linearity is introduced, and strategies for improving the performance of both conventional and linearized amplifiers are discussed.
Keywords :
electric distortion; power amplifiers; radiofrequency amplifiers; wideband amplifiers; amplifier transfer characteristics; linearity degradation; power amplifiers; time dependent amplifier nonlinearity; wide bandwidth operation; wideband dynamic linearity evaluation; Bandwidth; Broadband amplifiers; Degradation; Frequency; Intermodulation distortion; Linearity; Phased arrays; Power amplifiers; Power generation; Testing;
Conference_Titel :
Microwave Symposium Digest, 1996., IEEE MTT-S International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-3246-6
DOI :
10.1109/MWSYM.1996.511068
