Fujitsu Improves WiMax Efficiency
KDDI has announced early results from their joint R&D with Fujitsu Labs on energy and cost saving measures for future WiMax base stations. Nitride gallium HEMT, a stronger semiconductor material than conventional silicon, was used in a field experiment which achieved electric power output of 25W and operation frequency 2.5GHz. According to the statement they recorded electric power efficiency of the transmission amplifier at 30% improvement over previous attempts.
Original press release – in Japanese – Here.