Tri-band superconducting bandpass filter with high selectivity

被引：14
|
作者：
Heng, Yong [1 ]
Guo, Xubo [1 ]
Cao, Bisong [1 ]
Wei, Bin [1 ]
Zhang, Xiaoping [1 ]
Chen, Wei [1 ]
Ying, Zhijun [1 ]
Song, Xiaoke [1 ]
机构：
[1] Tsinghua Univ, Dept Phys, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China
来源：
ELECTRONICS LETTERS | 2013年 / 49卷 / 10期
基金：
中国国家自然科学基金;
关键词：
DESIGN;
D O I：
10.1049/el.2013.0648
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A tri-band superconducting filter at L-band comprising three high-pole single-band sub-filters with sharp band-edges is presented to meet the high selectivity requirement. Matching junctions with high-impedance branch lines are used to connect the sub-filters and to reduce the channel interactions. MgO and LaAlO3 substrates are utilised in the design and fabrication procedure to reduce the filter size and achieve a high performance. The whole filter has a compact size of 43 x 39.1 mm, and the measured results match well with the simulations.
引用
收藏
页码：658 / U54
页数：2
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