Title :
Investigation of a highly efficient LINC amplifier topology
Author :
Shi, Bo ; Sundstrom, Lars
Author_Institution :
Dept. of Electroscience, Lund Univ., Sweden
fDate :
6/23/1905 12:00:00 AM
Abstract :
The LINC transmitter is an architecture that provides linear amplification using nonlinear but power efficient amplifiers. The realization of the high power efficiency potential is the most critical issue of LINC. We have investigated a promising LINC amplifier topology that, using ideal bilateral PA devices, theoretically achieves linear amplification with 100% efficiency at all output levels. Circuit simulations based on integrated circuit (IC) techniques show good linearity and power efficiency results up to a few hundred MHz but gradually degrading performance as we approach the GHz range. With the advance of IC technology, this LINC amplifier topology offers a good possibility for obtaining highly efficient linear RF power amplifiers
Keywords :
UHF integrated circuits; UHF power amplifiers; circuit simulation; network topology; radio transmitters; radiofrequency amplifiers; IC; LINC amplifier topology; LINC transmitter; Linear amplification with Nonlinear Components; RF power amplifiers; bilateral devices; circuit simulations; integrated circuit; linear amplification; performance; radiocommunications; Circuit simulation; Circuit topology; Degradation; High power amplifiers; Integrated circuit technology; Linearity; Power amplifiers; Radiofrequency amplifiers; Radiofrequency integrated circuits; Transmitters;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.956969
