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*** For immediate use March 9, 2009
Tokyo, March 9, 2009 - NEC Corporation announced today the successful development of one of the world's most efficient (*1) transmitter amplifiers for mobile 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 (*2), in addition to independently optimizing Doherty RF circuitry (*3) with harmonic tuning. These innovations are accredited with NEC's successful creation of amplifiers with one of the world's highest efficiency levels, 45%.
Transmitter amplifiers are essential to the performance of mobile base stations, and telecom operators may now anticipate meaningful cost reductions from the introduction of this new technology. Mobile base stations fitted with the latest transmitter amplifiers are expected to be significantly smaller and to consume less power than existing equipment, which decreases the space required for storing units, time needed to assemble the stations, and simplifies maintenance.
NEC plans to begin shipment of the new transmitter amplifier, installed within LTE equipment, by the end of 2009. Looking forward, NEC also aims to provide the transmitter amplifier for W-CDMA, LTE and WiMAX base station vendors throughout expanding global markets.
About NEC Corporation
NEC Corporation is one of the world's leading providers of Internet, broadband network and enterprise business solutions dedicated to meeting the specialized needs of a diversified global base of customers. NEC delivers tailored solutions in the key fields of computer, networking and electron devices, by integrating its technical strengths in IT and Networks, and by providing advanced semiconductor solutions through NEC Electronics Corporation. The NEC Group employs more than 150,000 people worldwide. For additional information, please visit the NEC website at: http://www.nec.com.
NEC is a registered trademark of NEC Corporation. All Rights Reserved. Other product or service marks mentioned herein are the trademarks of their respective owners. (C)2009 NEC Corporation.
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The ratio of RF output signal power to the sum of RF input signal power and DC power. As amplifier efficiency becomes higher, radio signals can be produced at lower levels of power consumption.
(*2) RF Transistor:An adapted transistor made up of semiconductors and internal impedance matching circuits that amplifies power for radio frequency.
(*3) Doherty RF Circuit:An essential wireless circuit for amplifier optimization where steadily operating amplifiers and momentarily operating amplifiers have a parallel connection.
Mari Takahashi / Akiko Shikimori
NEC Corporation
+81-3-3798-6511
E-Mail：mari-t@ct.jp.nec.com
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