Investigation of coupling structures for coplanar bandpass filters

Author

Menzel, Wolfgang ; Schwab, Wilhelm ; Strauss, G.

Author_Institution

Microwave Tech., Ulm Univ., Germany

fYear

1995

fDate

16-20 May 1995

Firstpage

1407

Abstract

Single side metallization is one of the big advantages of coplanar waveguide (CPW) circuits. On the other hand, coupling in one plane only may lead to difficulties designing end or side coupled bandpass filters due to rather weak or multi-mode coupling of the filter resonators. A possible alternative is the introduction of two metallization layers separated by an additional dielectric sheet. In this paper, a number of possible coupling structures for bandpass filters based on standard CPW as well as on multilayer structures are investigated and compared, including some novel coupling arrangements.<>

Keywords

band-pass filters; coplanar waveguides; microwave filters; passive filters; waveguide filters; CPW circuits; coplanar bandpass filters; coplanar waveguide; coupling structures; dielectric sheet; multilayer structures; two metallization layers; Band pass filters; Coplanar transmission lines; Coplanar waveguides; Coupling circuits; Dielectric substrates; Distributed parameter circuits; Metallization; Nonhomogeneous media; Resonator filters; Superconducting transmission lines;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1995., IEEE MTT-S International

Conference_Location

Orlando, FL, USA

ISSN

0149-645X

Print_ISBN

0-7803-2581-8

Type

conf

DOI

10.1109/MWSYM.1995.406235

Filename

406235