Design of microstrip resonators using balanced and unbalanced composite right/left-handed transmission lines

Author

Allen, Catherine A. ; Leong, Kevin M K H ; Itoh, Tatsuo

Author_Institution

Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA

Volume

54

Issue

7

fYear

2006

fDate

7/1/2006 12:00:00 AM

Firstpage

3104

Lastpage

3112

Abstract

Balanced and unbalanced composite right/left-handed transmission lines are used in the design of resonators. The balanced resonator is designed by changing the nonlinear phase response in order to control the spacing between modes and the Q factor. Two balanced ring resonators are measured and one demonstrates increased mode spacing/decreased Q factor and the other demonstrates decreased mode spacing/increased loaded Q factor. The unbalanced resonator is designed by changing the nonlinear phase response and magnitude response. A measured unbalanced ring resonator shows increased mode spacing with a reasonable Q factor. A microstrip line resonator is measured to demonstrate higher frequency capabilities.

Keywords

Q-factor; high-frequency transmission lines; metamaterials; microstrip resonators; Q factor; balanced resonator; left-handed transmission lines; magnitude response; metamaterials; microstrip resonators; mode spacing; nonlinear phase response; right-handed transmission lines; ring resonators; transmission-line resonator; Band pass filters; Couplings; Frequency; Geometry; Microstrip resonators; Optical ring resonators; Oscillators; Permittivity; Resonator filters; Transmission lines; Metamaterials; microstrip resonators; transmission-line resonators;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2006.877048

Filename

1650452