A high temperature superconducting filter for future mobile telecommunication systems

Eamon P. McErlean, Jia Sheng Hong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

This paper presents a narrow-band high temperature superconducting (HTS) bandpass filter of Yba2Cu3O7 (YBCO) on a sapphire substrate applicable to future mobile communications systems. The design and simulation of a ten-pole quasi-elliptic function filter implemented using a cascaded quadruplet trisection (QCT) coupling topology is discussed. The filter is designed to have a 10 MHz pass band in the UMTS basestation receive band. The filter substrate was a sapphire wafer measuring 47mm × 17mm × .43 which had a double sided thin film coating of YBCO. The filter displayed a midband insertion loss of .6 dB at 1.970 GHz and a return loss better than (-10dB preliminary) over the pass band. A high performance out of band rejection associated with quasi-elliptic filter function was also recorded.

Original languageEnglish
Title of host publicationConference Proceedings- 34th European Microwave Conference
Pages1117-1119
Number of pages3
Volume2
Publication statusPublished - 2004
EventConference Proceedings- 34th European Microwave Conference - London, United Kingdom
Duration: 12 Oct 200414 Oct 2004

Conference

ConferenceConference Proceedings- 34th European Microwave Conference
CountryUnited Kingdom
CityLondon
Period12/10/0414/10/04

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