High-Tc Superconducting Filters for Power Signal Transmission on Communication Base Station

Kentaro SETSUNE
Akira ENOKIHARA
Koichi MIZUNO

Publication
IEICE TRANSACTIONS on Electronics   Vol.E81-C    No.10    pp.1578-1583
Publication Date: 1998/10/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section INVITED PAPER (Special Issue on Low- and High-Temperature Superconductive Electron Devices and Their Applications)
Category: Analog Applications
Keyword: 
high temperature superconductor,  HTS filter,  disc resonator,  high power filter,  

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Summary: 
A new or future system of mobile telecommunication is built by new digital technologies to provide an improved and more consistent quality of service for the customers. These digital systems can provide greater number of transmission channel allocation for their subscribers and security. On the digital communication system, distortion of transmitted signal should be eliminated as much as possible for high communication quality. However, the need to both minimize distortion of signal amplifiers and continue to provide good filtering protection can become difficult to achieve with conventional high power amplifiers and filters. In this paper, the application of high-Tc superconducting (HTS) power filters on such digital communication systems and recent progress of filter device developments for those are discussed.