A fully digital PWM-based 1 to 3 GHz multistandard transmitter in 40-nm CMOS

Author

Nuyts, Pieter A. J. ; Reynaert, Patrick ; Dehaene, Wim

Author_Institution

Dept. of Electr. Eng. (ESAT-MICAS), KU Leuven, Leuven, Belgium

fYear

2013

fDate

2-4 June 2013

Firstpage

419

Lastpage

422

Abstract

A fully digital 1 to 3 GHz multimode transmitter is presented which contains two RF modulators: One uses baseband (BB) PWM, while the other uses RF PWM. RF PWM produces less harmonics, while BB PWM has a higher dynamic range (DR) and consumes less power. The BB PWM system satisfies the WLAN EVM limit over the whole frequency range. The RF PWM system achieves sufficient EVM for standards such as EDGE and WCDMA. Both systems support the use of multiple PAs to extend the DR using multilevel PWM.

Keywords

CMOS analogue integrated circuits; microwave amplifiers; modulators; power amplifiers; pulse width modulation; transmitters; BB PWM system; CMOS; EDGE; RF PWM; RF modulator; WCDMA; WLAN EVM; baseband PWM; frequency 1 GHz to 3 GHz; full digital PWM-based multistandard transmitter; multilevel PWM; power amplifiers; power consumption; size 40 nm; Delay lines; Delays; Phase modulation; Pulse width modulation; Radio frequency; Wireless LAN; CMOS integrated circuits; OFDM; PWM; RF signals; delay lines; digital integrated circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency Integrated Circuits Symposium (RFIC), 2013 IEEE

Conference_Location

Seattle, WA

ISSN

1529-2517

Print_ISBN

978-1-4673-6059-3

Type

conf

DOI

10.1109/RFIC.2013.6569620

Filename

6569620