A Wideband Multilevel Reconfigurable Class E/F23 Power Amplifier With a Band-Selecting Tracking Reactance Compensation Automatic Calibration Algorithm

被引：1

作者：

Rad, Reza E. ^{[1
,2
]}

Qaragoez, Yasser M. ^{[1
]}

Kim, Sungjin ^{[1
,2
]}

Hejazi, Arash ^{[1
,2
]}

Kim, Dong Gyu ^{[1
]}

Khan, Danial ^{[1
]}

Ali, Imran ^{[1
]}

Rikan, Behnam S. ^{[1
,2
]}

Yoo, Sang-Sun ^{[2
,3
]}

Pu, Younggun ^{[1
,2
]}

Hwang, Keum Cheol ^{[1
]}

Yang, Youngoo ^{[1
]}

Lee, Kang-Yoon ^{[1
,2
]}

机构：

[1] Sungkyunkwan Univ, Dept Elect & Comp Engn, Suwon 16419, South Korea

[2] SKAIChips Co Ltd, Suwon 305701, South Korea

[3] Pyeongtaek Univ, Dept Smart Automot Engn, Pyeongtaek 17869, South Korea

来源：

IEEE ACCESS | 2022年 / 10卷

关键词：

Class-E/F-23; CMOS power amplifier; TV white space (TVWS); wideband; switching amplifier; wireless communications; radio-frequency (RF) circuits; EFFICIENCY; CMOS;

D O I：

10.1109/ACCESS.2022.3175885

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper presents a wide-band multi-level switched mode class-E/F23 Power Amplifier (PA) with a reconfigurable power stage core transistor and a load with reconfigurable reactance compensation part. An Automatic Calibration Scheme (ACS) is proposed to perform the core and load reconfiguration based on a proposed algorithm. The PA is formed by a class-D driver amplifier, the switched mode cascaded reconfigurable power stage, the reconfigurable class-E/F23 load, the ACS and its algorithm, and the matching network at the end of the load before the antenna. The proposed PA is implemented using a 130 nm CMOS technology. The wideband PA operates in the frequency range from 470 MHz to 690 MHz for a TV White Space (TVWS) application with 220 MHz bandwidth. Even though reaching a high maximum Power Added Efficiency (PAEmax) for the design with low output powers is challenging a PAEmax of 32% for a 10 dBm output power level from a low supply voltage of 2.2 V. The proposed ACS provides an output power with a flatness around 0.6 dB which shows 57% improvement in compare with the structure without the ACS. The PA achieved a selectable multi-level output power from 10 dBm to 14 dBm over the 220 MHz bandwidth.

引用

页码：54214 / 54220

页数：7

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