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 language | English |
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Title of host publication | Conference Proceedings- 34th European Microwave Conference |
Pages | 1117-1119 |
Number of pages | 3 |
Volume | 2 |
Publication status | Published - 2004 |
Event | Conference Proceedings- 34th European Microwave Conference - London, United Kingdom Duration: 12 Oct 2004 → 14 Oct 2004 |
Conference
Conference | Conference Proceedings- 34th European Microwave Conference |
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Country/Territory | United Kingdom |
City | London |
Period | 12/10/04 → 14/10/04 |