Feedthrough cancellation in a class E amplified polar transmitter
- 1 August 2007
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
The purpose of this work is to study feedthrough cancellation methods available for a class E amplified polar transmitter. A mathematical feedthrough cancellation using measured S-parameters is presented. The results show a clear improvement to the nonlinear behaviour of a class E amplifier. Also, a transistor level possibility of feedthrough cancellation is discussed and simulated. With a large-signal S-parameter simulation, a 5 dB feedthrough attenuation was achieved.Keywords
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