Investigation of a highly efficient LINC amplifier topology

Author

Shi, Bo ; Sundstrom, Lars

Author_Institution

Dept. of Electroscience, Lund Univ., Sweden

Volume

2

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

1215

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th

Conference_Location

Atlantic City, NJ

ISSN

1090-3038

Print_ISBN

0-7803-7005-8

Type

conf

DOI

10.1109/VTC.2001.956969

Filename

956969