https://scholars.lib.ntu.edu.tw/handle/123456789/580846
標題: | A 28 GHz Power Amplifier Combing Linearizer, Adaptive Bias and Gm Compensation to Improve Back-off and P1dB Efficiency | 作者: | Chang Y.-T Hung L.-C HSIN-CHIA LU |
關鍵字: | Efficiency; Adaptive bias; AM-AM distortion; CMOS power amplifiers; Compensation techniques; DC power consumption; Linearizers; Output power; Supply voltages; Power amplifiers | 公開日期: | 2021 | 起(迄)頁: | 170-173 | 來源出版物: | 2020 50th European Microwave Conference, EuMC 2020 | 摘要: | In this paper, we propose an efficiency enhanced CMOS power amplifier (PA) at 28 GHz. This work is the first time using the cross-couple pair (CCP) to be the gm compensation technique to improve AM-AM distortion at the power stage. In addition, we also use the linearizer and adaptive bias to extend the linear power region and increase back-off efficiency. In order to improved PAE in wide input power range, the adaptive bias, linearizer, and gm-compensation are used for low/medium/high power regions, respectively. The peak gain is 22.72 dB and 3-dB bandwidth is 5.7 GHz. At P1dB, the measured output power and PAE are 16.73 dBm and 21.37 %. The measured Psat and peak PAE are 17.68 dBm and 23.56 %. The measured back-off 6 dB PAE is 10.8 %. The total dc power consumption is only 97 mW for 1.2 V supply voltage. To our best knowledge, this PA has higher gain, better back-off PAE, and outstanding FoM. ? 2021 EuMA. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85100943223&doi=10.23919%2fEuMC48046.2021.9338061&partnerID=40&md5=0a5d19a4f31d16e7163dd268e7f4fc75 https://scholars.lib.ntu.edu.tw/handle/123456789/580846 |
DOI: | 10.23919/EuMC48046.2021.9338061 |
顯示於: | 電機工程學系 |
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