High-temperature superconducting CPW bandpass filters using meander-line parallel-circuited resonators

被引：0

作者：

Sanada, A ^{[1
]}

Hamamura, T ^{[1
]}

Awai, I ^{[1
]}

机构：

[1] Yamaguchi Univ, Fac Engn, Ube, Yamaguchi 7558611, Japan

来源：

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

关键词：

high-temperature superconductor; bandpass filter; coplanar waveguide; meander-line; metalorganic deposition;

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：

A compact high-temperature superconducting (HTS) bandpass filter (BPF) using coplanar waveguide (CPW) meander-line parallel-circuited resonators is proposed for microwave receiver applications. The design theory is presented based on a conventional filter theory with J-inverters. Also, analytical and numerical studies of the meander-line resonator are carried out in terms of equivalent circuit values, the resonant frequency, and the unloaded Q. Two- and four-stage 0.05 dB ripple Chebyshev BPFs at 2 GHz with relative bandwidth 60 MHz are fabricated with the metalorganic deposition (MOD)-derived YBCO films on LaAlO3 substrates and their performance are demonstrated. The measured frequency characteristics and the unloaded quality factors agree well with the theoretical and numerical results and the validity of the design theory is confirmed.

引用

页码：1729 / 1736

页数：8