A class E power amplifier design for drain modulation under a high PAPR WiMAX signal

Author

Cabria, L. ; Cabral, P.M. ; Pedro, J.C. ; García, J.A.

Author_Institution

Dept. Ing. de Comun., Univ. de Cantabria, Santander, Spain

fYear

2010

fDate

22-23 Feb. 2010

Firstpage

1

Lastpage

4

Abstract

This paper describes the design of a class E power amplifier (PA) destined to be used as the final stage of a polar transmitter under IEEE 802.16e Mobile WiMAX signal excitation. Based on a 60 W GaN HEMT device, the load condition for optimum efficiency is set close to the maximum value of the power generating function, as defined in, for an OFDMA modulating signal. The possible impact of such average-based design on the AM profile is also put into consideration.

Keywords

WiMax; high electron mobility transistors; power amplifiers; HEMT device; IEEE 802.16e mobile WiMAX signal excitation; OFDMA modulating signal; average based design; class E power amplifier design; drain modulation; high electron mobility transistors; load condition; optimum efficiency; polar transmitter; power generating function; Gallium nitride; HEMTs; High power amplifiers; Peak to average power ratio; Power amplifiers; Power generation; Signal design; Signal generators; Transmitters; WiMAX; EER; GaN HEMT; efficiency; linearity; polar transmitter; power amplifier;

fLanguage

English

Publisher

ieee

Conference_Titel

RF Front-ends for Software Defined and Cognitive Radio Solutions (IMWS), 2010 IEEE International Microwave Workshop Series on

Conference_Location

Aveiro

Print_ISBN

978-1-4244-5751-9

Type

conf

DOI

10.1109/IMWS.2010.5440968

Filename

5440968