Superconducting 8-pole tunable quasi-elliptic function filter on sapphire substrate

被引：0

作者：

Kayano, H ^{[1
]}

Terashima, Y ^{[1
]}

Aiga, F ^{[1
]}

Fuke, H ^{[1
]}

Yamazaki, M ^{[1
]}

Hashimoto, T ^{[1
]}

机构：

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

来源：

IEICE TRANSACTIONS ON ELECTRONICS | 2003年 / E86C卷 / 08期

关键词：

tunable filter; high-Tc superconductor; sapphire; quasi-elliptic function filter;

D O I：

暂无

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 developed a 2GHz band superconducting 8-pole tunable quasi-elliptic function filter on sapphire substrate. The tunable filter has a sharp skirt characteristic by transmission zeros. And the tunable filter uses a low-cost substrate of sapphire. An adjustment of center frequency for the filter is realized by a tunable technique with a piezoelectric bending actuator. The tunable filter realized center frequency shift of 7.62 MHz with conditions of bandwidth change of 0.5% and ripple change of 0.25 dB. Center frequency of the 8-pole quasi-elliptic function filter agreed with the designed value. Given these features, a superconducting filter with a sharp skirt characteristic for next-generation mobile RF applications is expected to be realized by applying these filters.

引用

页码：1635 / 1641

页数：7