A concurrent multi-band power amplifier with compact matching networks

Author

Fukuda, Atsushi ; Okazaki, Hiroshi ; Narahashi, Shoichi ; Nojima, Toshio

Author_Institution

Res. Labs., NTT DOCOMO, Inc., Yokosuka, Japan

fYear

2011

fDate

13-20 Aug. 2011

Firstpage

1

Lastpage

4

Abstract

This paper presents a novel configuration for a concurrent multi-band power amplifier (PA). A multi-band matching network comprises a multi-section impedance transformer that achieves matching in multiple bands. The proposed impedance transformer provides flexibility in the design of a concurrent multi-band PA in a wide frequency range. The impedance transformer is compact since each section comprises a combination of a T-shaped network, a shunt tank circuit, and a matching element. The proposed 1W-class dual-band PA achieves a maximum power added efficiency of greater than 53% at 0.8 GHz and 3.3 GHz.

Keywords

impedance convertors; power amplifiers; T-shaped network; compact matching network; concurrent multiband power amplifier; matching element; multiband matching network; multisection impedance transformer; shunt tank circuit; wide frequency range; Dual band; Frequency measurement; Impedance; Manganese; Power amplifiers; Power transmission lines; Transmission line measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium, 2011 XXXth URSI

Conference_Location

Istanbul

Print_ISBN

978-1-4244-5117-3

Type

conf

DOI

10.1109/URSIGASS.2011.6050495

Filename

6050495