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Design of Efficient Class-E Power Amplifiers for Short-Distance Communications

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3 Author(s)
Jun Tan ; Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore ; Chun-Huat Heng ; Yong Lian

This paper presents a new Class-E power amplifier (PA) with a π-matching output network. The PA is targeted at low output power wireless applications. Analytical formulae are derived to aid the PA design, characterization and optimization. A fully integrated 2.4-GHz PA for short distance communications has been implemented in 0.13 μm CMOS technology to verify the proposed design method. The measured output power levels vary from - 3.2 to 5.7 dBm while achieving maximum overall efficiency of 55%.

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Circuits and Systems I: Regular Papers, IEEE Transactions on  (Volume:59 ,  Issue: 10 )