Analysis for efficiency improvement of CMOS class-E power amplifiers with MEMS inductors

Wen An Tsou*, Che Sheng Chen, Chun Kai Wang, Kevin C.J. Chen, Svu Hsien Wu, Kuei-Ann Wen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

This paper presents an analysis and enhancement of efficiency in a class-E power amplifier using MEMS inductors. The MEMS technology is proposed and demonstrated by a prototype inductor. The model of MEMS inductors is created by HFSS simulator and its simulated result has good match with the measured result. Stacked-metal layer inductors in MEMS process are also developed to increase the quality factor. The simulation result of a CMOS class-E PA with MEMS inductors shows that the increased quality factor of inductors by 2 can improve the PA's efficiency by 6%. Furthermore, we present a design methodology for optimizing the PA's efficiency.

Original languageEnglish
Title of host publicationAPMC 2009 - Asia Pacific Microwave Conference 2009
Pages1683-1686
Number of pages4
DOIs
StatePublished - 1 Dec 2009
EventAsia Pacific Microwave Conference 2009, APMC 2009 - Singapore, Singapore
Duration: 7 Dec 200910 Dec 2009

Publication series

NameAPMC 2009 - Asia Pacific Microwave Conference 2009

Conference

ConferenceAsia Pacific Microwave Conference 2009, APMC 2009
CountrySingapore
CitySingapore
Period7/12/0910/12/09

Keywords

  • Inductors
  • MEMS
  • Power amplifiers
  • Power efficiency
  • Quality factor

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    Tsou, W. A., Chen, C. S., Wang, C. K., Chen, K. C. J., Wu, S. H., & Wen, K-A. (2009). Analysis for efficiency improvement of CMOS class-E power amplifiers with MEMS inductors. In APMC 2009 - Asia Pacific Microwave Conference 2009 (pp. 1683-1686). [5384309] (APMC 2009 - Asia Pacific Microwave Conference 2009). https://doi.org/10.1109/APMC.2009.5384309