High temperature superconducting narrow bandpass microwave filter

Author

Chunhai, Cao ; Gang, Jiao ; Zhenji, Zhang ; Kai, Shao ; Jintin, Lin ; Zhou Yucliang ; Ruilan, Wang ; Xiaoping, Wang

Author_Institution

Nanjing Electron. Devices Inst., China

fYear

1998

fDate

1998

Firstpage

690

Lastpage

693

Abstract

A high temperature superconducting narrow bandpass microwave filter was designed, fabricated and tested, that is a part of a receiver´s front-end with high sensitivity. The five-pole filter was configured by quarter wave-length parallel-coupled microstrip sections. The device was made using 15 mm×7 mm×0.5 mm LaAlO₃ wafers coated with epitaxial thin film YBa₂Cu₃O_7-δ by magnetron sputtering and laser-ablation methods. A 200 MHz passband in 9.74 GHz with 0.6 dB insertion loss in band was reported. Some coincidences and differences with the design were described and discussed

Keywords

band-pass filters; barium compounds; high-temperature superconductors; microstrip filters; microwave filters; superconducting epitaxial layers; superconducting filters; superconducting microwave devices; yttrium compounds; 0.6 dB; 9.74 GHz; LaAlO₃ substrate; YBa₂Cu₃O_7-δ epitaxial thin film; YBa₂Cu₃O₇; five-pole filter; high temperature superconducting narrow bandpass microwave filter; insertion loss; laser ablation; magnetron sputtering; quarter wavelength parallel-coupled microstrip filter; receiver front-end; Band pass filters; High temperature superconductors; Magnetic separation; Microwave filters; Sputtering; Superconducting epitaxial layers; Superconducting filters; Superconducting microwave devices; Temperature sensors; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology Proceedings, 1998. ICMMT '98. 1998 International Conference on

Conference_Location

Beijing

Print_ISBN

0-7803-4308-5

Type

conf

DOI

10.1109/ICMMT.1998.768383

Filename

768383