The Continuous Class-F Mode Power Amplifier

Author

Carrubba, V. ; Clarke, A.L. ; Akmal, M. ; Lees, J. ; Benedikt, J. ; Tasker, P.J. ; Cripps, S.C.

Author_Institution

Cardiff Sch. of Eng., Cardiff Univ., Cardiff, UK

fYear

2010

fDate

27-28 Sept. 2010

Firstpage

432

Lastpage

435

Abstract

This paper presents, for the first time the theoretical introduction and experimental validation of the "Continuous Class-F Mode Power Amplifier" that provides for a new design space for the design of high efficiency and broadband power amplifiers. Starting from the standard class-F mode, this work shows that it is possible to maintain constant or even improved output power and efficiency for coupled variations of fundamental and second harmonic impedances. The investigation was carried out on GaAs pHEMT devices and demonstrates that a near constant efficiency between 82% and 87% can be achieved along with a constant output power of 20dBm, over a wide range of fundamental and second harmonic loads.

Keywords

III-V semiconductors; gallium arsenide; high electron mobility transistors; power amplifiers; power semiconductor devices; GaAs; broadband power amplifiers; constant output power; continuous class-F mode power amplifier; fundamental harmonic loads; pHEMT devices; second harmonic impedances; second harmonic loads; Harmonic analysis; Impedance; Power amplifiers; Power generation; Power harmonic filters; Voltage measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Integrated Circuits Conference (EuMIC), 2010 European

Conference_Location

Paris

Print_ISBN

978-1-4244-7231-4

Type

conf

Filename

5613683