Hairpin-comb filters for HTS and other narrow-band applications

Author

Matthaei, George L. ; Fenzi, Neal O. ; Forse, Roger J. ; Rohfing, S.M.

Author_Institution

Superconductor Technol. Inc., Santa Barbara, CA, USA

Volume

45

Issue

8

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

1226

Lastpage

1231

Abstract

The folded half-wavelength resonators in hairpin-comb filters all have the same orientation, whereas the orientations of the resonators in conventional hairpin-filters alternates. Hairpin-comb filters are shown to have attractive properties for design of compact, narrow-band filters such as are often desired for high-temperature-superconductivity (HTS) and other applications. The results obtained from two- and four-resonator trial HTS-filter designs are discussed. The filters are seen to have very strong stopbands, and their computed and measured performance are found to be in very good agreement

Keywords

UHF filters; band-pass filters; high-temperature superconductors; microstrip filters; microwave filters; passive filters; resonator filters; superconducting microwave devices; superconducting resonators; HTS filter designs; folded half-wavelength resonators; hairpin-comb filters; high-temperature-superconductivity; narrow-band applications; Band pass filters; Bandwidth; Coupling circuits; Dielectric substrates; High temperature superconductors; Microstrip filters; Narrowband; Resonator filters; Stripline; Superconducting filters;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.618411

Filename

618411