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Class E Colpitts oscillator for low power wireless applications

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2 Author(s)
R. Devine ; Capital Coll., Pennsylvania State Univ., Middletown, PA ; M. -R. Tofighi

A class E Colpitts oscillator for low power wireless applications, operating around 900 MHz, is reported for the first time. A microstrip design of the oscillator demonstrates a maximum drain efficiency of 46.5 , with an output power of 8.5 dBm, at a supply voltage of 1.2 V. Simulation predicts that a miniaturised design of the oscillator with lumped element components would achieve a drain efficiency of over 60%.

Published in:

Electronics Letters  (Volume:44 ,  Issue: 21 )