Design and measurement of a miniaturized HTS filter using microstrip spiral resonators

被引：6
|
作者：
Ma, ZW [1 ]
Sakurai, E [1 ]
Kobayashi, Y [1 ]
机构：
[1] Saitama Univ, Dept Elect & Elect Syst, Urawa, Saitama 3388570, Japan
来源：
IEICE TRANSACTIONS ON ELECTRONICS | 2005年 / E88C卷 / 02期
关键词：
high-temperature superconductor; microstrip spiral resonator; bandpass filter;
D O I：
10.1093/ietele/E88-C.2.216
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 high temperature superconductor (HTS) filter is designed and measured at 1.93 GHz, using microstrip half-wavelength spiral resonators. Resonant and coupling characteristics of miniaturized microstrip spiral resonators are investigated first. Then a 4-pole Chebyshev bandpass filter with a very narrow passband (4.1 MHz) is designed and realized using microstrip spiral resonators. The filter is fabricated using HTS YBCO films deposited on a LaAlO3 substrate. The measured frequency response of the filter agrees reasonably with the specifications, and shows that the filter owns excellent property of spurious resonance rejection over a wide frequency range.
引用
收藏
页码：216 / 220
页数：5
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