Superconducting microstrip filter for DCS1800 base station

Author

Hong, J.S. ; Lancaster, M.J. ; Greed, R.B. ; Jedamzik, D.

Author_Institution

Sch. of Electron. & Electr. Eng., Birmingham Univ., UK

fYear

1998

fDate

1998

Firstpage

678

Lastpage

681

Abstract

This paper describes the design of a highly selective superconducting microstrip bandpass filter for the DCS1800 base station. The filter exhibits a pair of attenuation poles at finite frequencies to improve the selectivity. The utilisation of meander open-loop resonators allows a very small and compact filter configuration to be realised. The filter is fabricated using YBa₂Cu₃O₇ thin film HTS material on a MgO substrate that is only 0.3×39×22.5 mm. Measured results are presented

Keywords

UHF filters; band-pass filters; barium compounds; cellular radio; high-temperature superconductors; microstrip filters; passive filters; resonator filters; superconducting filters; superconducting microwave devices; superconducting thin films; yttrium compounds; 1770 to 1785 MHz; DCS1800 base station; HTSC thin film; MgO; MgO substrate; YBa₂Cu₃O₇ thin film; YBa₂Cu₃O₇-MgO; attenuation poles; compact filter configuration; highly selective band-pass filter; meander open-loop resonators; superconducting microstrip filter; Attenuation; Band pass filters; Base stations; Frequency; High temperature superconductors; Microstrip filters; Resonator filters; Substrates; Superconducting filters; Transistors;

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.1998.768380

Filename

768380