Advanced RF Technologies and Future Requirements for Mobile Communication Base Stations

Nobuo NAKAJIMA  Toshio NOJIMA  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E85-C   No.12   pp.1950-1958
Publication Date: 2002/12/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: INVITED PAPER (Special Issue on Low-Distortion,High-Power,High-Efficiency Active Device and Circuit Technology)
Category: 
Keyword: 
mobile communication,  amplifier,  base station,  cellular,  

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Summary: 
Recent cellular systems have excellent performances, such as high quality, compactness, low power consumption and low cost, owing not only to digital technologies but also to various RF device technologies, especially amplifier technologies. This paper describes base station RF technologies that contributed for the improvement of base station equipment. Future mobile system will provide much higher bitrate services in the higher frequency band. Requirements and new technologies that are expected for RF equipment of the future base stations are also discussed.