Title :
Nonlinear gain compression in microwave amplifiers using generalized power-series analysis and transformation of input statistics
Author :
Gutierrez, Hector ; Gard, Kevin ; Steer, Michael B.
Author_Institution :
Dept. of Mech. & Aerosp. Eng., Florida Inst. of Technol., Melbourne, FL, USA
fDate :
10/1/2000 12:00:00 AM
Abstract :
Two methods are presented for the estimation of gain compression generated by a digitally modulated carrier passed through a nonlinear RF circuit. The first one is based on developing an analytical expression for gain compression based on the transformation of input signal statistics. The second one is based on approximated expressions derived from generalized power-series analysis. The techniques are evaluated by comparing measured and predicted gain compression in a CDMA system
Keywords :
UHF power amplifiers; code division multiple access; gain control; intermodulation distortion; microwave power amplifiers; series (mathematics); statistics; CDMA system; IMD; approximated expressions; digitally modulated carrier; gain compression estimation; generalized power-series analysis; input statistics transformation; microwave amplifiers; nonlinear RF circuit; nonlinear gain compression; Coupling circuits; Cutoff frequency; Directional couplers; Electromagnetic scattering; Equivalent circuits; Frequency dependence; Impedance; Microwave amplifiers; Microwave theory and techniques; Power amplifiers;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
