Abstract
In this paper we summarize recent results in a development of narrow-band HTS bandpass filters on sapphire substrate for future wireless communications systems. The filters are designed to have 5 or 10 MHz pass band in the UMTS base stations receive band. The filters exhibit quasielliptic function response for higher selectivity with less numbers of resonators. They are implemented with either a. cascaded-quadruplet (CQ) or a cascaded-quadruplet-triplet (CQT) coupling structure. The filters were fabricated on 0.43mmthick sapphire wafers with double-sided YBCO films. Measured results of the filters are presented, showing excellent performances. © 2004 IEEE.
Original language | English |
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Title of host publication | 2004 4th International Conference on Microwave and Millimeter Wave Technology, Proceedings, ICMMT 2004 |
Editors | Z Feng, W Chen |
Pages | 264-267 |
Number of pages | 4 |
Publication status | Published - 2004 |
Event | 2004 4th International Conference on Microwave and Millimeter Wave Technology - Beijing, China Duration: 18 Aug 2004 → 21 Aug 2004 |
Conference
Conference | 2004 4th International Conference on Microwave and Millimeter Wave Technology |
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Abbreviated title | ICMMT 2004 |
Country/Territory | China |
City | Beijing |
Period | 18/08/04 → 21/08/04 |