A class-E power amplifier for wireless biomedical systems
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AbstractThis letter presents the design, implementation and experimental results of a class-E power amplifier (PA) suitable for wireless biomedical sensor nodes (WBSNs) integrated into a wireless body area network (WBAN). A self-biased inverter is used as a preamplifier stage to provide a 50 %-duty-cycle square wave to drive the class-E PA. The design (PA with the preamplifier), which is fabricated in a 0.18-μm CMOS technology, achieves 40.2 % drain efficiency while output power is 14.7 dBm at 433 MHz under 1.2-V supply, as demonstrated by the experimental results. © 2013 Springer Science+Business Media New York.
All Author(s) ListLi K.-W., Leung K.-N.
Journal nameAnalog Integrated Circuits and Signal Processing
Volume Number75
Issue Number3
PublisherKluwer Academic Publishers
Place of PublicationNetherlands
Pages525 - 529
LanguagesEnglish-United Kingdom
KeywordsClass-E power amplifier, WBAN

Last updated on 2021-22-09 at 23:41