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60 W Class-E/F3 Switching Power Amplifier With an Improved Second Harmonic Distortion of -49 dBcopen access
- Authors
- Bae, Sooncheol; Oh, Hansik; Choi, Woojin; Shin, Jaekyung; Chen, Yifei; Jeon, Hyeongjin; Choi, Young Chan; Nam, Sunwoo; Bin, Soohyun; Lee, Yoonjung; Lee, Kang-Yoon; Hwang, Keum Cheol; Yang, Youngoo
- Issue Date
- 2024
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Keywords
- Class-E; Class-E/F<sub>3</sub>switching power amplifier; harmonic distortion; resonant circuit; SPA; switching amplifier; total harmonic distortion
- Citation
- IEEE Access, v.12, pp 41980 - 41987
- Pages
- 8
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE Access
- Volume
- 12
- Start Page
- 41980
- End Page
- 41987
- ISSN
- 2169-3536
- Abstract
- This paper presents a Class-E/F3 switching power amplifier (SPA) with reduced second harmonic leakage using parallel resonant circuit in series for the second harmonics. The proposed Class-E/F3 SPA has a structure utilizing a series resonant circuit in shunt for the third harmonic, designed to function as a shunt capacitor for the fundamental, and an additional parallel resonant circuit for the second harmonic, designed to operate as a series inductor for the fundamental. Using the proposed scheme, a Class-E/F3 SPA was designed and implemented for 6.78 MHz, and was evaluated with various supply voltages. It exhibited output power levels ranging from 10.26 to 59.98 W (40.11 to 47.78 dBm) with supply voltages ranging from 10 to 24 V. The efficiency was maintained at over 89.25%. Additionally, it demonstrated very low second and third harmonic distortion levels, each not exceeding -49.98 dBc, while the total harmonic distortion (THD) ranged from 1.54% to 2.15%. © 2013 IEEE.
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Related Researcher
- LEE, KANG YOON
- Information and Communication Engineering (Electronic and Electrical Engineering)