1 GHz Class E RF Power Amplifier For A Polar Transmitter

This paper describes advantages and peculiarities of class E power amplifier when used in a polar transmitter system. Basic principles about class E and information about different nonlinearities are given. Also, modifying transistor model to switch use is discussed briefly. A 1 GHz, 0.5 W class E p...

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Bibliographic Details
Main Authors: Hietakangas, S., Rautio, T., Rahkonen, T.
Format: Conference Proceeding
Language:English
Subjects:
Amplitude modulation
Envelope detectors
Power amplifiers
Power supplies
Power system restoration
Radio frequency
Radio transmitters
Radiofrequency amplifiers
Switches
Voltage
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Summary:This paper describes advantages and peculiarities of class E power amplifier when used in a polar transmitter system. Basic principles about class E and information about different nonlinearities are given. Also, modifying transistor model to switch use is discussed briefly. A 1 GHz, 0.5 W class E power amplifier was implemented for a polar transmitter. Differences between transmitter systems are mentioned and measurements of a total transmitter system performance are presented
DOI:10.1109/NORCHP.2006.329232