A Superconducting Microstrip Ultra-Wideband (UWB) Bandpass Filter at VHF-Band

被引：8
|
作者：
Chen, Wei [1 ]
Guo, Xubo [2 ]
Cao, Bisong [1 ]
Zhang, Xiaoping [1 ]
Wei, Bin [1 ]
Zhang, Ying [1 ]
Lu, Xinxiang [1 ]
机构：
[1] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2009年 / 19卷 / 10期
基金：
美国国家科学基金会;
关键词：
Bandpass filter (BPF); microstrip; short-circuited stubs; superconducting; ultra-wideband (UWB); DESIGN;
D O I：
10.1109/LMWC.2009.2029740
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 compact superconducting ultra-wideband filter with a passband from 125 to 260 MHz is demonstrated. The filter consists of ten shunt short-circuited stubs separated by connecting lines. The short-circuited stubs are grounded via a grounding strip that is attached to the box wall by a number of SiAl bonding wires. The filter is realized on two 2 in YBCO/LaAlO3 substrates, which are connected by two bonding wires. The measured results demonstrate an insertion loss of less than 0.08 dB and a return loss of better than 21 dB without tuning. Furthermore, the experimental results of the filter are in good agreement with the simulated ones.
引用
收藏
页码：635 / 637
页数：3
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