Title :
A dynamic AM/AM and AM/PM measurement technique
Author :
Moulthrop, A.A. ; Clark, C.J. ; Silva, C.P. ; Muha, M.S.
Author_Institution :
Aerosp. Corp., Los Angeles, CA, USA
Abstract :
The AM/AM and AM/PM characteristics of a power amplifier are typically measured in a static manner using a CW signal. For communications signals, the amplitude envelope is varying so the distortion is actually occurring dynamically. This paper presents a technique to measure dynamic AM/AM and AM/PM. Results are presented for two examples of power amplification: a traveling-wave tube amplifier and a solid-state amplifier.
Keywords :
amplitude modulation; electric distortion measurement; microwave measurement; microwave power amplifiers; phase modulation; travelling wave amplifiers; AM/AM characteristics; AM/PM characteristics; communications signal; distortion; dynamic measurement; power amplifier; solid-state amplifier; traveling-wave tube amplifier; Aerodynamics; Distortion measurement; Measurement techniques; Nonlinear distortion; Phase measurement; Power amplifiers; Power measurement; Power system modeling; Predictive models; Voltage;
Conference_Titel :
Microwave Symposium Digest, 1997., IEEE MTT-S International
Conference_Location :
Denver, CO, USA
Print_ISBN :
0-7803-3814-6
DOI :
10.1109/MWSYM.1997.596604
