Abstract

A combined linear and Δ-modulated switched-mode PA supply modulator for polar transmitters is designed in a 0.25μm CMOS process. The modulator follows the input envelope and achieves 20dB output DR, a maximum efficiency of 75.5%, and 75dB SNDR for envelope signals up to 4MHz occupied RF BW. For a 1625kb/s 8PSK RF input at 900MHz, polar modulation of a GSM-900 PA provides 10dB ACPR improvement.

Original languageEnglish (US)
Title of host publication2007 IEEE International Solid-State Circuits Conference, ISSCC - Digest of Technical Papers
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages82-84
Number of pages3
ISBN (Print)1424408539, 9781424408535
DOIs
StatePublished - 2007
Event54th IEEE International Solid-State Circuits Conference, ISSCC 2007 - San Francisco, CA, United States
Duration: Feb 11 2007Feb 15 2007

Publication series

NameDigest of Technical Papers - IEEE International Solid-State Circuits Conference
ISSN (Print)0193-6530

Other

Other54th IEEE International Solid-State Circuits Conference, ISSCC 2007
CountryUnited States
CitySan Francisco, CA
Period2/11/072/15/07

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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  • Cite this

    Kitchen, J., Chu, W. Y., Deligoz, I., Kiaei, S., & Bakkaloglu, B. (2007). Combined linear and Δ-modulated switched-mode PA supply modulator for polar transmitters. In 2007 IEEE International Solid-State Circuits Conference, ISSCC - Digest of Technical Papers (pp. 82-84). [4242275] (Digest of Technical Papers - IEEE International Solid-State Circuits Conference). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISSCC.2007.373598