Design of wideband high‐efficiency power amplifier based on continuous inverse modes

2021 ◽  
Author(s):  
Ziming Zhao ◽  
Xiao‐Wei Zhu ◽  
Lei Zhang
Keyword(s):  
Power Amplifier ◽  
High Efficiency ◽  
Continuous Inverse

scholarly journals A Broadband High-Efficiency Hybrid Continuous Inverse Power Amplifier Based on Extended Admittance Space

2021 ◽  
Vol 9 ◽  
Author(s):  
Chun Ni ◽  
Hui Wang ◽  
Jing Liu ◽  
Mingsheng Chen ◽  
Zhongxiang Zhang ◽  
...  
Keyword(s):  
Power Amplifier ◽  
High Efficiency ◽  
Second Harmonic ◽  
Inverse Power ◽  
Shift Parameter ◽  
Class B ◽  
Operating Bandwidth ◽  
Detailed Mathematical Analysis ◽  
Continuous Inverse ◽  
Good Agreement

A novel hybrid continuous inverse power amplifier (PA) that is constituted by a continuum of PA modes from the continuous inverse class-F to the continuous inverse class-B/J is proposed, and a detailed mathematical analysis is presented. The fundamental and second harmonic admittance spaces of the hybrid PA proposed in this article are analyzed mathematically. By introducing the phase shift parameter into the current waveform formula of the hybrid continuous inverse PA, the design space of the fundamental and second harmonic admittance is expanded, further increasing the operating bandwidth. The efficiency of the amplifier under different parameter conditions is calculated. In order to verify this method, a broadband high-efficiency PA is designed and fabricated. The drain voltage and current waveforms of the amplifier are extracted for analysis. The experimental measured results show a 60.7–71.5% drain efficiency across the frequency band of 0.5–2.5 GHz (133% bandwidth), and the designed PA can obtain an 11.8–13.9 dB gain in the interesting frequency range. The measured results are confirmed to be in good agreement with theory and simulations.

A High Efficiency Class-E Power Amplifier Over a Wide Power Range Using a Look-Up Table Based Dynamic Biasing Scheme

2015 ◽  
Vol E98.C (4) ◽  
pp. 377-379
Author(s):  
Jonggyun LIM ◽  
Wonshil KANG ◽  
Kang-Yoon LEE ◽  
Hyunchul KU
Keyword(s):  
Power Amplifier ◽  
High Efficiency ◽  
Look Up Table ◽  
Dynamic Biasing ◽  
Class E

Broadband high‐efficiency power amplifier with compact coupling matching network

2021 ◽  
Author(s):  
Weirong Wang ◽  
Guohua Liu ◽  
Zhiwei Zhang ◽  
Zhiqun Cheng
Keyword(s):  
Power Amplifier ◽  
High Efficiency ◽  
Matching Network

Co-Designed High-Efficiency GaN Filter Power Amplifier

2020 ◽  
Author(s):  
Jose Antonio Estrada ◽  
Pedro de Paco ◽  
Seth Johannes ◽  
Dimitra Psychogiou ◽  
Zoya Popovic
Keyword(s):  
Power Amplifier ◽  
High Efficiency
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