Tuning properties of 2 GHz superconducting microstrip-line filters

被引：18

作者：

Fuke, H ^{[1
]}

Terashima, Y ^{[1
]}

Kayano, H ^{[1
]}

Yamazaki, M ^{[1
]}

Aiga, F ^{[1
]}

Katoh, R ^{[1
]}

机构：

[1] Toshiba Co Ltd, Corp Res & Dev Ctr, Kawasaki, Kanagawa 2128582, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2001年 / 11卷 / 01期

关键词：

dielectric materials; electrically tunable filters; high-Tc superconductors; interdigital electrodes;

D O I：

10.1109/77.919376

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：

We have fabricated a 2 GHz 12-pole superconducting microstrip line filter and a 2-pole electrically tunable biter using interdigital electrodes and dielectric film. The change of the dielectric constant of a SrTiO3 film, stacked on the filter, by applying a bias voltage between the electrodes leads to the tunability. The range of the center frequency modulation was 13 MHz (0.7 %) at 60 K, 75 kV/cm. The microwave frequency response was improved by modification of the electrode structure. This tuning method is considered to be promising in that individual resonance elements in multi-pole filters can be tuned independently.

引用

页码：434 / 437

页数：4

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