Efficient BAW Filtering Solution for EDGE Transmitter

Author

Bar, P. ; Hibon, I. ; Giry, A. ; Dumont, F. ; Pache, D. ; Ancey, P. ; Carpentier, J.F.

Author_Institution

XLIM Res. Inst., Limoges Univ.

fYear

2006

fDate

10-15 Sept. 2006

Firstpage

898

Lastpage

901

Abstract

This paper presents a bandpass filter for DCS/EDGE transmitter using bulk acoustic wave technology. It is designed to filter PA´s harmonic frequencies and out-of-band noise generated by sigma-delta modulator in DCS/EDGE architecture. The filter is based on solidly mounted resonators electrically coupled in a ladder type topology; it achieves 2.4 dB insertion loss including matching network to 50 Omega, more than 15 dB of return loss over the 75MHz DCS band. Linearity and power handling capability characterizations are detailed. This filter is combined with a power amplifier using STMicroelectronics´ 0.25 mum BiCMOS technology, it is a first step to develop a power amplifier module for GSM/EDGE standard in the DCS frequency band

Keywords

3G mobile communication; acoustic resonators; band-pass filters; bulk acoustic wave devices; radio transmitters; BAW filtering solution; EDGE transmitter; acoustic resonator; bandpass filters; bulk acoustic wave devices; differential power amplifier; sigma delta modulator; Acoustic noise; Acoustic waves; Band pass filters; Distributed control; Filtering; Frequency; Power amplifiers; Power harmonic filters; Resonator filters; Transmitters; Bulk acoustic wave devices; EDGE transmitter; Sigma-Delta modulator; acoustic resonator; bandpass filters; differential power amplifier;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2006. 36th European

Conference_Location

Manchester

Print_ISBN

2-9600551-6-0

Type

conf

DOI

10.1109/EUMC.2006.281065

Filename

4057964