An HTS end-coupled CPW filter at 35 GHz

Author

Swanson, D.G., Jr. ; Forse, R.J.

Author_Institution

Watkins-Johnson Co., Palo Alto, CA, USA

fYear

1994

fDate

23-27 May 1994

Firstpage

199

Abstract

Using conventional thin-film metalization schemes, the lower limit on practical filter bandwidths is set by the loss of the metalization system. Using HTS technology, we are no longer limited by conductor loss; the new limit is the geometry of the coupling structure between resonators. The limitations of the more conventional capacitive coupled open circuited resonator topologies can be overcome by switching to an inductive coupling scheme between short circuited resonators. This new approach has been tested and proven by fabricating a five resonator, 35 GHz CPW filter that is highly compatible with HTS technology.<>

Keywords

high-temperature superconductors; metallisation; microstrip components; microwave filters; passive filters; resonators; superconducting microwave devices; superconducting thin films; 35 GHz; EHF; HTS end-coupled CPW filter; HTSC technology; MM-wave filters; inductive coupling scheme; short circuited resonators; Bandwidth; Circuit topology; Conductors; Coplanar waveguides; Coupling circuits; Geometry; High temperature superconductors; Resonator filters; Switching circuits; Transistors;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1994., IEEE MTT-S International

Conference_Location

San Diego, CA, USA

ISSN

0149-645X

Print_ISBN

0-7803-1778-5

Type

conf

DOI

10.1109/MWSYM.1994.335336

Filename

335336