Power-Combining Class-E Amplifier With Finite Choke

Mury Thian; Vincent Fusco; P. Gardiner

doi:10.1109/TCSI.2010.2072250

Power-Combining Class-E Amplifier With Finite Choke

Mury Thian
, Vincent Fusco
, P. Gardiner

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

A recently introduced power-combining scheme for a Class-E amplifier is, for the first time, experimentally validated in this paper. A small value choke of 2.2 nH was used to substitute for the massive dc-feed inductance required in the classic Class-E circuit. The power-combining amplifier presented, which operates from a 3.2-V dc supply voltage, is shown to be able to deliver a 24-dBm output power and a 9.5-dB gain, with 64% drain efficiency and 57% power-added efficiency at 2.4 GHz. The power amplifier exhibits a 350-MHz bandwidth within which a drain efficiency that is better than 60% and an output power that is higher than 22 dBm were measured. In addition, by adopting three-harmonic termination strategy, excellent second-and third-harmonic suppression levels of 50 and 46 dBc, respectively, were obtained. The complete design cycle from analysis through fabrication to characterization is explained. © 2010 IEEE.

Original language	English
Article number	5629458
Pages (from-to)	451-457
Number of pages	7
Journal	IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
Volume	58
Issue number	3
DOIs	https://doi.org/10.1109/TCSI.2010.2072250
Publication status	Published - 2011

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/TCSI.2010.2072250

Cite this

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title = "Power-Combining Class-E Amplifier With Finite Choke",

abstract = "A recently introduced power-combining scheme for a Class-E amplifier is, for the first time, experimentally validated in this paper. A small value choke of 2.2 nH was used to substitute for the massive dc-feed inductance required in the classic Class-E circuit. The power-combining amplifier presented, which operates from a 3.2-V dc supply voltage, is shown to be able to deliver a 24-dBm output power and a 9.5-dB gain, with 64\% drain efficiency and 57\% power-added efficiency at 2.4 GHz. The power amplifier exhibits a 350-MHz bandwidth within which a drain efficiency that is better than 60\% and an output power that is higher than 22 dBm were measured. In addition, by adopting three-harmonic termination strategy, excellent second-and third-harmonic suppression levels of 50 and 46 dBc, respectively, were obtained. The complete design cycle from analysis through fabrication to characterization is explained. {\textcopyright} 2010 IEEE.",

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AU - Fusco, Vincent

AU - Gardiner, P.

PY - 2011

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AB - A recently introduced power-combining scheme for a Class-E amplifier is, for the first time, experimentally validated in this paper. A small value choke of 2.2 nH was used to substitute for the massive dc-feed inductance required in the classic Class-E circuit. The power-combining amplifier presented, which operates from a 3.2-V dc supply voltage, is shown to be able to deliver a 24-dBm output power and a 9.5-dB gain, with 64% drain efficiency and 57% power-added efficiency at 2.4 GHz. The power amplifier exhibits a 350-MHz bandwidth within which a drain efficiency that is better than 60% and an output power that is higher than 22 dBm were measured. In addition, by adopting three-harmonic termination strategy, excellent second-and third-harmonic suppression levels of 50 and 46 dBc, respectively, were obtained. The complete design cycle from analysis through fabrication to characterization is explained. © 2010 IEEE.

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ER -

Power-Combining Class-E Amplifier With Finite Choke

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