Improvement of power amplifier efficiency by reactive Chireix combining, power back-off and differential phase adjustment

被引：24
|
作者：
Gerhard, W. [1 ]
Knoechel, R. [1 ]
机构：
[1] Univ Kiel, Microwave Lab, Kaiserstr 2, D-24143 Kiel, Germany
来源：
2006 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST, VOLS 1-5 | 2006年
关键词：
basestation; Chireix; efficiency; LDMOS; LINC; outphasing; rf power amplifier; WCDMA;
D O I：
10.1109/MWSYM.2006.249783
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An interesting effect of output power back-off (OPBO) efficiency improvement is presented which is present if 2 power amplifiers (PA) utilizing a reactive output Chireix coupling are combined with input power back-off and differential phase adjustment for maximum efficiency peaking. The capability of significant efficiency improvement at power back-off is demonstrated and validated by means of simulations and measurements. The new design method delivers a power added efficiency (PAE) of 48% at 6dB OPBO and 35% at 10dB OPBO for a 25.7W Si-LDMOS PA at 2.14 GHz for a WCDMA basestation application.
引用
收藏
页码：1887 / +
页数：2
相关论文
共 50 条
  • [31] 2.4 GHz CMOS Digitally Programmable Power Amplifier for Power Back-off Operation
    Santos, F.
    Mariano, A.
    Leite, B.
    2016 IEEE 7TH LATIN AMERICAN SYMPOSIUM ON CIRCUITS & SYSTEMS (LASCAS), 2016, : 159 - 162
  • [32] A Broadband Doherty-Like Power Amplifier With Large Power Back-Off Range
    Zhang, Zhiwei
    Fusco, Vincent
    Cheng, Zhiqun
    Gu, Chao
    Buchanan, Neil
    Ying, Jiajie
    IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 2022, 69 (06) : 2722 - 2726
  • [33] A Quadrature Digital Power Amplifier With Hybrid Doherty and Impedance Boosting for Complex Domain Power Back-Off Efficiency Enhancement
    Qian, Huizhen Jenny
    Yang, Bingzheng
    Zhou, Jie
    Xu, Hongtao
    Luo, Xun
    IEEE JOURNAL OF SOLID-STATE CIRCUITS, 2021, 56 (05) : 1487 - 1501
  • [34] Load and Frequency Independent Doherty Power Amplifier Back-Off Extension
    Dietrich, Florian
    Wei, Muh-Dey
    Heidebrecht, Eduard
    Bierbusse, David
    Negra, Renato
    IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2024, 72 (06) : 3438 - 3451
  • [35] Performance analysis of power amplifier back-off levels in UWB transmitters
    Bertran, Eduard
    O'Droma, Mairtin S.
    Gilabert, Pere. L.
    Montoro, Gabriel
    IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, 2007, 53 (04) : 1309 - 1313
  • [36] Design of high efficiency Doherty power amplifier applying power controlling technology with 15dB output power back-off
    Qi, Tian
    He, SongBai
    2017 47TH EUROPEAN MICROWAVE CONFERENCE (EUMC), 2017, : 576 - 579
  • [37] Fast power back-off adjustment by efficient cubic metric determination
    Faculty of Electrical, Information and Media Engineering, University of Wuppertal, Wuppertal, Germany
    Eur. Conf. Circuit Theory Des., ECCTD, (681-684):
  • [38] Design of a 12 dB back-off asymmetric Doherty power amplifier using reactive output impedance
    Xia, Jing
    Zhang, Tianqi
    Cai, Jialin
    Zhou, Xinyu
    Ding, Dawei
    Kong, Wa
    Bao, Xu
    IEICE ELECTRONICS EXPRESS, 2020, 17 (11): : 1 - 4
  • [39] Broadband Three-Stage Pseudoload Modulated Balanced Amplifier With Power Back-Off Efficiency Enhancement
    Sun, Jiaxing
    Lin, Feng
    Sun, Houjun
    Chen, Wenhua
    Negra, Renato
    IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2022, 70 (05) : 2710 - 2722
  • [40] Hybrid Class-G Doherty Digital Power Amplifier with Deep Back-off Efficiency Enhancement
    Xiong, Liang
    Li, Tong
    Yin, Yun
    Xu, Hongtao
    2018 14TH IEEE INTERNATIONAL CONFERENCE ON SOLID-STATE AND INTEGRATED CIRCUIT TECHNOLOGY (ICSICT), 2018, : 786 - 788
12345