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Dual Mode Power Amplifier for WiBro and Wireless LAN Using Drain Bias Switching  

Lee, Young-Min (Dept. of Electronics Eng., University of Incheon)
Koo, Kyung-Heon (Dept. of Electronics Eng., University of Incheon)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.44, no.3, 2007 , pp. 1-6 More about this Journal
Abstract
A drain bias switching technique is presented to enhance power added efficiency for WiBro and wireless LAN dual band and dual mode transmitter. Some simulations have been done to predict the effect of drain and gate bias change, and bias switching is proposed to get the higher efficiency for dual mode transmitter which generates different output power for different applications. With drain bias switching and simulated optimum fixed gate bias, the amplifier shows dramatic PAE improvement compared to the amplifier without bias switching. The drain and gate bias switching technique will be useful for multi mode communication system with various functions.
Keywords
power amplifier; drain switching; gate switching; dual band;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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