A Waveform-Engineered Outphasing RFPA Using a Broadband Balun Combiner

被引：0
|
作者：
Bogusz, Aleksander [1 ]
Lees, Jonathan [1 ]
Quaglia, Roberto [1 ]
Watkins, Gavin [2 ]
Cripps, Steve C. [1 ]
机构：
[1] Cardiff Univ, Ctr High Frequency Engn, Cardiff, S Glam, Wales
[2] Toshiba Res Europe Ltd, Bristol, Avon, England
来源：
2018 IEEE/MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM - IMS | 2018年
关键词：
Chireix; Class J; Power Amplifier (PA); Outphasing; Balun; Harmonic Injection; Harmonic Termination; Load Modulation;
D O I：
暂无
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：
This paper discusses advantages and benefits of using a broadband balun as a power combiner in a Chireix outphasing system. The balun operates over an extended octave bandwidth, which allows load modulation to be proscribed at fundamental and second harmonic frequencies, allowing continuous modes such as Class B-J to be implemented. The desired harmonic load termination is achieved without any specialized matching networks, and solely by means of load modulation provided by the active device interaction. Simulation results are verified and demonstrated; drain efficiencies of more than 65% and 50% are maintained over 6dB and 9dB output power ranges respectively, with signals operating at 1.95 GHz, while reaching a maximum combined power of 44.8 dBm.
引用
收藏
页码：301 / 303
页数：3
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