Compact superconducting dual-band bandpass filter by combining bandpass and bandstop filters

被引：20

作者：

Heng, Yong ^{[1
]}

Guo, Xubo ^{[1
]}

Cao, Bisong ^{[1
]}

Wei, Bin ^{[1
]}

Zhang, Xiaoping ^{[1
]}

Zhang, Guoyong ^{[2
]}

Song, Xiaoke ^{[1
]}

机构：

[1] Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Dept Phys, Beijing 100084, Peoples R China

[2] Sino Superconductor Technol Ltd, Beijing 100085, Peoples R China

来源：

ELECTRONICS LETTERS | 2013年 / 49卷 / 19期

基金：

中国国家自然科学基金;

关键词：

aluminium compounds; band-pass filters; band-stop filters; lanthanum compounds; resonator filters; compact superconducting dual-band bandpass filter; bandstop filter; bandpass subfilter; bandstop subfilter; i >>; 2 double spiral resonator; 4 connecting lines; admittance inverter; 2 folded resonator; dual-band response; size; 30; 4; mm; 10; 3; LaAlO3;

D O I：

10.1049/el.2013.2429

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 superconducting dual-band bandpass filter with a mixture of bandpass and bandstop sub-filters is presented. The bandpass sub-filter is designed with /2 double spiral resonators mid-tapped by /4 connecting lines which act as admittance inverters. The tap position of each resonator is adjusted to meet the required susceptance slope parameter. The bandstop sub-filter is designed with /2 folded resonators embedded in and coupled with the centres of the /4 connecting lines. The dual-band filter is designed and fabricated on an LaAlO3 substrate with a compact size of 30.4 x 10.3 mm. The measurements show good dual-band response and match well with the simulations.

引用

页码：1230 / +

页数：3

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