High Efficiency Transmitter Using Varactor Based Dynamic Load Modulation
Paper in proceeding, 2010
This paper presents results for a dynamic load
modulation transmitter where an existing 1 GHz LDMOS
power amplifier is combined with a varactor based tuneable
load network to produce a dramatic efficiency improvement
for modulated signals. The transmitter is combined
with a dedicated linearization method to achieve an
average PAE of 53% for a WCDMA signal at 7 dB PAPR.
The results demonstrate the potential of dynamic load
modulation for future transmitters combining flexibility
and high efficiency at a low cost.
Author
Christian Fager
GigaHertz Centre
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
Haiying Cao
GigaHertz Centre
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
Thomas Eriksson
GigaHertz Centre
Chalmers, Signals and Systems, Communication, Antennas and Optical Networks
Hendrikus Jos
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
GigaHertz Centre
Hossein Mashad Nemati
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
GigaHertz Centre
Ali Soltani Tehrani
Chalmers, Signals and Systems, Communication, Antennas and Optical Networks
GigaHertz Centre
Herbert Zirath
GigaHertz Centre
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
IEEE International Microwave Workshop Series on “RF Front-ends for Software Defined and Cognitive Radio Solutions”
37-40
978-1-4244-5752-6 (ISBN)
Subject Categories
Telecommunications
Other Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1109/IMWS.2010.5441006
ISBN
978-1-4244-5752-6