A 5.5-GHz power amplifier for wide bandwidth polar modulator

Renliang Zheng, Mihai Sanduleanu, R. P. Aditham, L. C.N. De Vreede, Junyan Ren

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

An efficiency-enhanced power amplifier (PA) is analysed and designed for wide-bandwidth envelope elimination and restoration (EER) system with application to orthogonal frequency-division multiplexing (OFDM) wireless local area network (WLAN) system. The proposed PA has no bandwidth limitation as that of the DC-DC converter used in classical polar modulator. The simulation result shows that the average power-added efficiency (PAE) is 25.38% at a 5.5Ghz average output power of 19dBm with peak to average ratio about 7.7dB and the overall error vector magnitude (EVM) remains less than 10% throughout its output power range. This PA shows much higher PAE among the reported WLAN BiCMOS HBT PAs as well as satisfying IEEE802.11a transmitter back off requirement.

Original languageBritish English
Title of host publicationICSICT-2006
Subtitle of host publication2006 8th International Conference on Solid-State and Integrated Circuit Technology, Proceedings
PublisherIEEE Computer Society
Pages1724-1726
Number of pages3
ISBN (Print)1424401615, 9781424401611
DOIs
StatePublished - 2006
EventICSICT-2006: 2006 8th International Conference on Solid-State and Integrated Circuit Technology - Shanghai, China
Duration: 23 Oct 200626 Oct 2006

Publication series

NameICSICT-2006: 2006 8th International Conference on Solid-State and Integrated Circuit Technology, Proceedings

Conference

ConferenceICSICT-2006: 2006 8th International Conference on Solid-State and Integrated Circuit Technology
Country/TerritoryChina
CityShanghai
Period23/10/0626/10/06

Keywords

  • Envelope elimination and restoration (EER)
  • EVM
  • Orthogonal frequency-division multiplexing (OFDM)
  • Polar modulator
  • Power amplifier (PA)
  • WLAN

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