2.4GHz/5.2GHz雙頻帶CMOS射頻功率放大器之研製頁數

Development of 2.4GHz/5.2GHz Dual-Band RF Power Amplifier

指導教授 : 黃榮堂 研究生 : 鄭明理   自動化科技研究所 92年


摘要

  本論文主要以TSMC 0.25-um 1P5M CMOS製程技術研製2.4GHz ISM和5.2GHz U-NII雙頻帶射頻功率放大器,論文中提出兩種製作雙頻功率放大器的方法。第一種方法是利用電容和電感特性來實現驅動級輸入雙頻帶網路的匹配,並使用個別頻帶的輸出級做訊號放大。在2.4GHz模擬的輸出P1dB、PAE和線性功率增益分別為20.460dBm、32%和19.65dB。在5.2GHz模擬的輸出P1dB、PAE和線性功率增益分別為17.479dBm、16%和7.129dB。第二種方法是利用微機電製作可變電容和可變電感的技術來實現電路雙頻帶匹配,並利用電晶體開關來切換改變2.4GHz和5.2GHz輸出級的電晶體通道寬度大小。在2.4GHz模擬的輸出P1dB、PAE和線性功率增益分別為19.876dBm、20.673%和22.226dB。在5.2GHz模擬的輸出P1dB、PAE和線性功率增益分別為15.160dBm、7.360%和9.551dB。

論文中也有針對E類功率放大器做相關介紹和研究,主要以TSMC 0.25-um 1P5M CMOS製程技術設計兩種2.4GHz ISM功率放大器,分別為疊接式E類功率放大器和兩級串接E類功率放大器兩種電路。

關鍵詞:CMOS、雙頻帶功率放大器、E類功率放大器、微機電可變電容、微機電可變電感

ABSTRACT

 This thesis presents the development of 2.4GHz ISM and 5.2GHz U-NII dual-band RF power amplifier, and is implemented by TSMC 0.25-um 1P5M CMOS process. This thesis proposes two methods to develop dual-band power amplifier. The first way is using capacitor and inductor characteristic to accomplish dual-band matching network for driver stage, and amplify the signal by using output stage in particular band. Based on this method, output 1dB compression, PAE and linear power gain is 20.460dBm, 32% and 19.65dB, respectively, in 2.4GHz. And in 5.2GHz, output 1dB compression, PAE and linear power gain is 17.479dBm, 16% and 7.129dB, respectively.

The second way is using MEMS variable capacitors and MEMS variable inductors to accomplish dual-band matching network, and utilize MOS switch to change transistor channel width of output stage. Based on this method, output 1dB compression, PAE and linear power gain is 19.876dBm, 20.6736% and 22.256dB, respectively, in 2.4GHz. And in 5.2GHz, output 1dB compression, PAE and linear power gain is 15.160dBm, 7.360% and 9.551dB, respectively.

This thesis also presents the research of class E power amplifier, and design cascade class E power amplifier and two-stage class E power amplifier.


Keywords:CMOS、Dual-Band Power Amplifier、Class E Power Amplifier、MEMS Variable Capacitor、MEMS Variable Inductor