Employing inverse Class-E power amplifier series output filter in parallel Doherty power amplifier

被引：3
|
作者：
Sheikhi, Akram [1 ]
Hemesi, Hossein [2 ]
Grebennikov, Andrei [3 ]
机构：
[1] Lorestan Univ, Elect Engn Dept, Fac Engn, Khorramabad 4431668151, Iran
[2] Amirkabir Univ, Elect Engn Dept, Tehran, Iran
[3] Sumitomo Elect Europe Ltd, Elstree, Herts, England
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2023年 / 65卷 / 02期
基金：
美国国家科学基金会;
关键词：
Doherty power amplifier (DPA); inverse Class-E; series filter; ZCS; ZCDS; CAPACITANCE;
D O I：
10.1002/mop.33503
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：
In this paper, a Doherty power amplifier based on an inverse Class-E amplifier with a series output filter are presented. The proposed inverse Class-E amplifier has been designed and simulated using lumped elements and transmission lines (TL), respectively. The high-performance simulation results of TL inverse Class-E PA with an output power of 46.2 dBm, peak drain efficiency of 71%, and a power gain of 27 dB at an input power 18 dBm have been obtained. Finally, the Doherty power amplifier (DPA) based on the inverse Class-E power amplifier with some asymmetry in two paths has been designed and implemented. Implementation of both carrier and peaking amplifiers with an inverse Class-E load network can provide an increase in the efficiency and improvement of harmonic suppression levels. Maximum drain efficiencies of 69.3% and 54% at maximum output power level (50 dBm) and 7-dB back-off power level (43 dBm) have been measured, respectively.
引用
收藏
页码：425 / 433
页数：9
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