Design methodology for distributed power amplifier in Software-Defined Radio applications

Author

Palombini, Diego ; Bentini, Andrea ; Palomba, Mirko ; Dibello, Sergio ; Limiti, Ernesto

Author_Institution

Dipt. di Ing. Elettron., Univ. degli Studi di Roma Tor Vergata, Rome, Italy

fYear

2013

fDate

6-8 Oct. 2013

Firstpage

512

Lastpage

515

Abstract

In this contribution a new design methodology for distributed power amplifiers is presented, based on vector current combination concept. The proposed technique, improving traditional drain line tapering approaches, proves to be particularly suitable in Software Defined Radio (SDR) and Cognitive Radio (CR) applications. In order to verify the feasibility of the proposed strategy, the design of a MMIC power amplifier is presented, featuring 17dB gain in the whole 1-3GHz band with an output power of 28dBm and a 23% of associated DC/RF conversion efficiency. The resulting chip size is 3.5×2mm².

Keywords

MMIC power amplifiers; cognitive radio; combinatorial mathematics; distributed amplifiers; software radio; vectors; CR applications; MMIC power amplifier design; SDR applications; cognitive radio applications; distributed amplifiers; drain line tapering approaches; efficiency 23 percent; frequency 1 GHz to 3 GHz; gain 17 dB; software-defined radio applications; vector current combination concept; Impedance; Microwave amplifiers; Microwave circuits; Microwave communication; Power amplifiers; Software radio; Current Combining Technique; Distributed Power Amplifier; MMIC; Software Defined Radio;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Integrated Circuits Conference (EuMIC), 2013 European

Conference_Location

Nuremberg

Type

conf

Filename

6687898