標題: Analysis for Efficiency Improvement of CMOS Class-E Power Amplifiers with MEMS Inductors
作者: Tsou, Wen-An
Chen, Che-Sheng
Wang, Chun-Kai
Chen, Kevin C. J.
Wu, Svu-Hsien
Wen, Kuei-Ann
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
關鍵字: MEMS;inductors;quality factor;power amplifiers;power efficiency
公開日期: 2009
摘要: This paper presents an analysis and enhancement of efficiency in a class-E power amplifier using MEMS inductors. The M EMS 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.
URI: http://hdl.handle.net/11536/13667
ISBN: 978-1-4244-2801-4
期刊: APMC: 2009 ASIA PACIFIC MICROWAVE CONFERENCE, VOLS 1-5
起始頁: 1683
結束頁: 1686
Appears in Collections:Conferences Paper