Title :
A 225-400MHz WiMAX 20W SiC power amplifier
Author :
Risso, Luca ; Armoni, Alberto ; Petacchi, Luca
Author_Institution :
Selex Commun. s.p.a., Genova
Abstract :
A power amplifier (PA) for WiMAX military applications in Nato Band I (225 to 400 MHz) has been simulated, assembled and tested. Under 802.16 OFDM 64 QAM3/4 modulation, the average output power is 25 W throughout the bandwith. Reliability is increased thanks a special coupling topology. SiC power MESFET has been used in the design.
Keywords :
OFDM modulation; UHF power amplifiers; WiMax; power MESFET; quadrature amplitude modulation; reliability; silicon compounds; wide band gap semiconductors; 802.16 OFDM; Nato Band I; SiC; WiMAX military applications; coupling topology; frequency 225 MHz to 400 MHz; power 20 W; power 25 W; power MESFET; power amplifier; quadrature amplitude modulation; reliability; Circuit topology; FETs; Impedance matching; MESFETs; Power amplifiers; Power generation; Scattering parameters; Silicon carbide; Testing; WiMAX;
Conference_Titel :
Microwave Conference, 2007. European
Conference_Location :
Munich
Print_ISBN :
978-2-87487-001-9
DOI :
10.1109/EUMC.2007.4405438
