A novel tunable broadband power amplifier module operating from 0.8 GHz to 2.0 GHz

Author

Zhang, Haitao ; Gao, Huai ; Li, Guann-Pyng

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., California Univ. at Irvine, CA, USA

fYear

2005

fDate

12-17 June 2005

Abstract

In this paper, an InGaP/GaAs HBT broadband power amplifier with a novel tunable output matching circuit is first proposed and implemented. The 3-stage broadband power amplifier is realized by using the compensating matching technique and optimizing the distribution of power gain among stages. The output matching circuit is implemented with parallel L_C tank circuits using PIN diodes to control the inductor value. This broadband amplifier module offers the advantage of fewer components, less power insertion loss, small size and high linearity. The broadband power amplifier module demonstrates 28 dB power gain, 30 dBm output power and higher than 30% power added efficiency (PAE) at frequencies covering dual bands from 0.85 GHz to 0.95 GHz and from 1.71 GHz to 1.95 GHz, which can be used in the GSM, DCS, PCS and CDMA systems.

Keywords

III-V semiconductors; MMIC power amplifiers; UHF amplifiers; gallium arsenide; heterojunction bipolar transistors; indium compounds; optimisation; wideband amplifiers; 0.8 to 2.0 GHz; 0.85 to 0.95 GHz; 1.71 to 1.95 GHz; 28 dB; 30 percent; CDMA systems; DCS; GSM; HBT broadband power amplifier; InGaP-GaAs; MMIC power amplifiers; PCS; PIN diodes; broadband amplifier module; heterojunction bipolar transistors; inductor value; matching technique; parallel LC tank circuits; power bipolar transistor amplifiers; power gain distribution; reconfigurable architectures; semiconductor diode switches; tunable broadband power amplifier module; tunable output matching circuit; Broadband amplifiers; Distributed amplifiers; Gallium arsenide; Heterojunction bipolar transistors; Impedance matching; Inductors; Insertion loss; Linearity; Power amplifiers; Tunable circuits and devices;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2005 IEEE MTT-S International

ISSN

01490-645X

Print_ISBN

0-7803-8845-3

Type

conf

DOI

10.1109/MWSYM.2005.1516692

Filename

1516692