IEICE Transactions on Electronics
Online ISSN : 1745-1353
Print ISSN : 0916-8524
Regular Section
A High Efficiency Class-E Power Amplifier Over a Wide Power Range Using a Look-Up Table Based Dynamic Biasing Scheme
Jonggyun LIMWonshil KANGKang-Yoon LEEHyunchul KU
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2015 年 E98.C 巻 4 号 p. 377-379

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A class-E power amplifier (PA) with novel dynamic biasing scheme is proposed to enhance power added efficiency (PAE) over a wide power range. A look-up table (LUT) adjusts input power and drain supply voltage simultaneously to keep switch mode condition of a power transistor and to optimize the PAE. Experimental results show that the class-E PA using the proposed scheme with harmonic suppression filter gives the PAE higher than 80% over 8.5 dB range with less than 40 dBc harmonic suppression.
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© 2015 The Institute of Electronics, Information and Communication Engineers
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