A miniaturized interdigital microstrip bandpass filter

被引：4

作者：

Huang, KC ^{[1
]}

Hyland, D ^{[1
]}

Jenkins, A ^{[1
]}

Edwards, D ^{[1
]}

Dew-Hughes, D ^{[1
]}

机构：

[1] Univ Oxford, Dept Engn Sci, Oxford OX1 3PJ, England

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1999年 / 9卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1109/77.783877

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 2.4 GHz three-stage microstrip bandpass filter was designed using a miniaturized interdigital capacitor structure to reduce the configuration in size. The filter was simulated by a finite element method software and then fabricated using TBCCO superconducting films on 20 mm x 20 mm x 0.5 mmt MgO substrates, It was generated by photolithographic and wet etching process; and packaged in a brass box. The bandwidth is 4% and the passband insertion Loss of the filter was measured to be -0.4 dB at 77 K. The return loss is better than -8 dB, In particular, this filter has a sharper performance at its edge of fundamental pass band.

引用

页码：3889 / 3892

页数：4

共 8 条

[1]

[Anonymous], MICROWAVE FILTERS IM

[2] RADIO-FREQUENCY SURFACE-RESISTANCE OF LARGE-AREA BI-SR-CA-CU-O THICK-FILMS ON AG PLATES [J].