Source: NEC press release
NEC Corporation announced today the successful development of one of the world's most efficient transmitter amplifiers for mobile terminal base stations, a 2.1GHz model that produces 45W of output power per 100W of power consumption.
Transmitter amplifiers are devices that increase the strength of RF signals transmitted from base stations to remote terminals. NEC produced these latest amplifiers by adopting high performance and highly reliable RF transistor technologies, in addition to independently optimizing Doherty RF circuitry with harmonic tuning. These innovations are accredited with NEC's successful creation of amplifiers with one of the world's highest efficiency levels, 45%.