Title :
Validation of power amplifier nonlinear block models
Author :
Muha, M.S. ; Clark, C.J. ; Moulthrop, A.A. ; Silva, C.P.
Author_Institution :
Aerosp. Corp., El Segundo, CA, USA
Abstract :
This paper presents a method of assessing the fidelity of nonlinear amplifier models for communications applications. The simulation predictions for BPSK and 16-QAM input signals are compared to measurements for a 20 GHz solid-state amplifier. It is shown that including a filter before a memoryless nonlinearity provides significantly improved model fidelity compared to the memoryless nonlinearity alone.
Keywords :
microwave power amplifiers; modelling; phase shift keying; quadrature amplitude modulation; 16-QAM input signals; BPSK input signals; communications applications; filter; memoryless nonlinearity; model fidelity improvement; nonlinear amplifier models; nonlinear block models; one-box model; power amplifier; simulation predictions; solid-state amplifier; two-box model; Computational modeling; Filters; Frequency; Measurement techniques; Power amplifiers; Power measurement; Predictive models; Solid modeling; Solid state circuits; Time domain analysis;
Conference_Titel :
Microwave Symposium Digest, 1999 IEEE MTT-S International
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
0-7803-5135-5
DOI :
10.1109/MWSYM.1999.779870
