Title :
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
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;
Conference_Titel :
Microwave Integrated Circuits Conference (EuMIC), 2013 European
Conference_Location :
Nuremberg
