Title :
Ultra linear/feedforward amplifier design
Author_Institution :
Commun. Power Corp., USA
Abstract :
The proliferation of cellular and personal communication networks burdens an already overcrowded frequency spectrum. These systems require modern RF power amplifiers to maintain high levels of spectral efficiency for minimized adjacent channel interference. Amplifiers must maintain ultra linear transfer functions to achieve spectrally efficient operation. Several amplifier architectures (including feedforward) capable of ultra linear operation are illustrated, compared and analyzed.
Keywords :
UHF power amplifiers; feedforward; linearisation techniques; power amplifiers; radiofrequency amplifiers; RF power amplifiers; cellular networks; feedforward amplifier; minimized adjacent channel interference; personal communication networks; spectral efficient operation; ultra linear amplifier design; ultra linear operation; ultralinear transfer functions; Broadband amplifiers; Delay lines; Feedforward systems; Linearity; Nonlinear distortion; Operational amplifiers; Power amplifiers; Radio frequency; Radiofrequency amplifiers; Transfer functions;
Conference_Titel :
Microwave Symposium Digest, 1998 IEEE MTT-S International
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-4471-5
DOI :
10.1109/MWSYM.1998.705191
