An RFIC within a direct open-loop polar multimode transmitter for UMTS/EDGE/GSM

Author

Osman, Saleh ; Lee, Wayne ; McCune, Earl ; Hirano, Shunsuke ; Maeda, Masakatsu ; Ishida, Kaoru

Author_Institution

Panasonic Emerging Adv. RF Lab., Santa Clara, CA

fYear

2008

fDate

June 17 2008-April 17 2008

Firstpage

577

Lastpage

580

Abstract

An RFIC within a direct open-loop polar multimode transmitter that supports UMTS, GSM, and EDGE is shown in 0.18 mum CMOS. Design details, and chipset system application are explained. The chip architecture applies phase accurate FLL two-point modulator with SigmaDelta feedback control for AM-PM corrected wideband phase modulation to an LC VCO, and AM-AM corrected envelope drive of multi-stage saturated PA. IC measurement results and chip-set system performance are presented.

Keywords

3G mobile communication; CMOS integrated circuits; cellular radio; radio transmitters; radiofrequency integrated circuits; AM-AM corrected envelope drive; AM-PM corrected wideband phase modulation; EDGE; FLL two-point modulator; GSM; IC measurement results; LC VCO; RFIC; SigmaDelta feedback control; UMTS; chip-set system performance; direct open-loop polar multimode transmitter; multi-stage saturated PA; size 0.18 micron; 3G mobile communication; Feedback control; Frequency locked loops; GSM; Phase measurement; Phase modulation; Radiofrequency integrated circuits; Transmitters; Voltage-controlled oscillators; Wideband; CMOS integrated circuit; polar modulation; power amplifiers; transmitter;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency Integrated Circuits Symposium, 2008. RFIC 2008. IEEE

Conference_Location

Atlanta, GA

ISSN

1529-2517

Print_ISBN

978-1-4244-1808-4

Electronic_ISBN

1529-2517

Type

conf

DOI

10.1109/RFIC.2008.4561503

Filename

4561503