TY - JOUR
T1 - Drain AM Frequency Response of the High-Q Class E Power Amplifier
AU - Kimber, David
AU - Gardner, Peter
PY - 2005/1/1
Y1 - 2005/1/1
N2 - The Class E power amplifier has very high drain efficiency under quasi-static conditions, and is a good candidate for EER or polar techniques. The load presented by the PA to the high level amplitude modulator can be modelled by an equivalent circuit. This allows the modulation frequency response and excess switch dissipation to be calculated. It is found that the feed choke and the finite Q of the output circuit interact to form a second order low pass filter. Reasonable agreement with measured data is seen.
AB - The Class E power amplifier has very high drain efficiency under quasi-static conditions, and is a good candidate for EER or polar techniques. The load presented by the PA to the high level amplitude modulator can be modelled by an equivalent circuit. This allows the modulation frequency response and excess switch dissipation to be calculated. It is found that the feed choke and the finite Q of the output circuit interact to form a second order low pass filter. Reasonable agreement with measured data is seen.
UR - http://www.scopus.com/inward/record.url?scp=29144445863&partnerID=8YFLogxK
U2 - 10.1049/ip-cds:20045219
DO - 10.1049/ip-cds:20045219
M3 - Article
SN - 1751-8598
VL - 152
SP - 752
EP - 756
JO - IEE Proceedings - Circuits, Devices and Systems
JF - IEE Proceedings - Circuits, Devices and Systems
IS - 6
ER -