TRI-band CMOS Class-E power amplifier design with phase compensations for polar systems

Chung Min Lai*, Wen An Tsou, Mei Fen Chou, Kuei-Ann Wen

*此作品的通信作者

    研究成果: Conference contribution同行評審

    摘要

    A 0.18μm CMOS fully integrated cascode Class-E power amplifier operating in 2.5GHz/3.5GHz/5.2GHz frequency bands for polar transmitters has been proposed. The tri-band amplification is achieved by adaptation of the common-gate transistor size and the matching networks. The phase distortion from supply modulation of the Class-E is compensated by controlling the common-gate transistor gate voltage and a compensative capacitor. Simulation results show that the maximum power-added efficiency (PAE) of 30.4%, drain efficiency of 34% and output power of 18.8dBm from 2.8V supply can be achieved. The phase distortion can be compensated from 34.4° to 3.1° under supply voltage of 0.5V to 2.8V. A system co-simulation has been established for relative constellation error (RCE) evaluation and it reveals that the RCE can be improved from -23.3dB to -31.4dB in 3.5GHz frequency band.

    原文English
    主出版物標題2010 23rd Canadian Conference on Electrical and Computer Engineering, CCECE 2010
    DOIs
    出版狀態Published - 5 11月 2010
    事件2010 23rd Canadian Conference on Electrical and Computer Engineering, CCECE 2010 - Calgary, AB, Canada
    持續時間: 2 5月 20105 5月 2010

    出版系列

    名字Canadian Conference on Electrical and Computer Engineering
    ISSN(列印)0840-7789

    Conference

    Conference2010 23rd Canadian Conference on Electrical and Computer Engineering, CCECE 2010
    國家/地區Canada
    城市Calgary, AB
    期間2/05/105/05/10

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