High-Frequency and High-Speed Devices for Communication Network Systems

Yasutake HIRACHI  

IEICE TRANSACTIONS on Electronics   Vol.E82-C   No.11   pp.1862-1870
Publication Date: 1999/11/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: INVITED PAPER (Special Issue on High-Frequency/High-Speed Devices for Information and Communication Systems in the 21st Century)
Category: Information and Communication System
high speed network,  millimeter-wave device,  high speed device,  

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A description for high-speed communication networks for the 21st century is roughly sketched, and the technical development trends in high-frequency and high-speed devices are briefly forecasted. Four examples of devices under development are reported: 76-GHz flip-chip MMIC's for car-radar systems, a cost-effective RF module for millimeter-wave wireless systems, a 10-Gbps demultiplexer for optical fiber communication systems, and a GaAs microwave signal processor for active phased-array systems. Considering as technological trends evolve further, this paper also introduces the software radio concept and the fusion of wireless and optical technologies for cost-effective wireless communication equipment and end-user services.