Miniaturized microstrip and CPW filters using coupled metamaterial resonators

Author

García-García, Joan ; Bonache, Jordi ; Gil, Ignacio ; Martín, Ferran ; Velazquez-Ahumada, Md.C. ; Martel, Jesús

Author_Institution

Departament d´´Enginyeria Electronica, Univ. Autonoma de Barcelona

Volume

54

Issue

6

fYear

2006

fDate

6/1/2006 12:00:00 AM

Firstpage

2628

Lastpage

2635

Abstract

In this paper, it is shown that the application of metamaterial resonators to the design of planar microwave filters provides a high level of miniaturization for such devices. Specifically, split-ring resonator, complementary split-ring resonator, and spiral resonator are used to synthesize microwave filters using the coupling coefficient approach. Some considerations in order to improve and control the coupling coefficients between resonators are exposed. The magnetic and electric character of the coupling coefficient is analyzed in detail, and a method to identify this coupling is proposed. Finally, several prototype device filters operative at S-band are provided to illustrate the proposed techniques

Keywords

coplanar waveguide components; metamaterials; microstrip filters; microwave filters; resonator filters; CPW filters; coupled metamaterial resonators; microstrip filters; planar filters; quasi-elliptic filters; split-ring resonator; Coplanar waveguides; Couplings; Magnetic materials; Magnetic separation; Metamaterials; Microstrip filters; Microstrip resonators; Microwave devices; Microwave filters; Resonator filters; Coupling coefficient; metamaterials; planar filters; quasi-elliptic filters;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2006.872934

Filename

1643598