TBCCO-microstrip filters based on dual-mode ring resonators

被引：0
作者：
Huber, S [1 ]
Manzel, M
Bruchlos, H
Thrum, F
Klinger, M
Abramowicz, A
机构：
[1] Inst Phys Hochtechnol, D-07702 Jena, Germany
[2] FIT Messtech GMBH, D-31162 Bad Salzdetfurth, Germany
来源：
APPLIED SUPERCONDUCTIVITY 1997, VOLS 1 AND 2: VOL 1: SMALL SCALE AND ELECTRONIC APPLICATIONS; VOL 2: LARGE SCALE AND POWER APPLICATIONS | 1997年 / 158期
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D O I：
暂无
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Superconducting n-pole filter realizations using lambda-dual-mode ring resonators are described. Results are presented for 2-pole filters and a 4-pole elliptic function filter having bandwidths smaller than 1% at a centre frequency of 4 GHz. Double-sided Tl2Ba2Ca2Cu3Ox-films with very low surface resistance (R-s < 150 mu Omega at 10 GHz and 77 K) on 2 " LaAlO3-substrates were used to fabricate the microstrip filters. The microwave performance of the 2- and 4-pole filters exhibits return loss more than 26 dB and 10 dB, respectively and low insertion loss (<0.5 dB) at 77 K. Furthermore there is a good agreement between the measured passband shape achieved with tuning elements and the computer simulation.
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页码：351 / 354
页数：4
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