Title :
S-Band Class-F Power Amplifier with Integrated Switched Mode Power Supply
Author :
Van der Bent, Gijs ; De Hek, Peter ; Geurts, Sander ; Brouzes, Hervé ; Van Vliet, Frank E.
Author_Institution :
TNO, The Hague, Netherlands
Abstract :
An S-band radar transmitter MMIC is reported containing a class-F power amplifier and a switched mode power supply. The integration of the power supply offers the possibility to optimize the power amplifier bias voltage for each individual device in a AESA antenna. This has several advantages such as amplitude tapering with preservation of efficiency, the reduction of spurious signals due to decoherence and the removal of single point of failure.
Keywords :
MMIC power amplifiers; UHF integrated circuits; active antenna arrays; antenna phased arrays; circuit optimisation; phased array radar; radar antennas; radar transmitters; switched mode power supplies; AESA antenna; S-band class-F power amplifier; S-band radar transmitter MMIC; active electronically scanned array antennas; amplitude tapering; decoherence; efficiency preservation; frequency 2 GHz to 4 GHz; integrated switched mode power supply; power amplifier bias voltage optimization; spurious signal reduction; MMICs; Power amplifiers; Power generation; Power supplies; Radar; Switches; Voltage control;
Conference_Titel :
Compound Semiconductor Integrated Circuit Symposium (CSICS), 2012 IEEE
Conference_Location :
La Jolla, CA
Print_ISBN :
978-1-4673-0928-8
DOI :
10.1109/CSICS.2012.6340071
