Effects of a Lumped Element on DGS with Islands

Author

Kim, Jonguk ; Lim, Jong-Sik ; Kim, Kwangsoo ; Ahn, Dal

Author_Institution

Div. of Inf. Technol. Eng., Soonchunhyang Univ.

fYear

2006

fDate

11-16 June 2006

Firstpage

1145

Lastpage

1148

Abstract

In this paper, the effects of a lumped element on a DGSI (defected ground structure with islands), which consists of some islands around the microstrip signal line on the upper plane, are investigated. In order to demonstrate the effects of the lumped element which is placed at the islands section on the upper plane, a parallel resonator with the dumbbell-shaped DGSI is proposed and implemented. A chip resistor and capacitor are chosen as lumped elements for the verification. Experimental results show that the Q-factor and resonant frequency of the proposed DGSI can be controlled directly by using the external lumped element

Keywords

Q-factor; microstrip lines; strip line resonators; DGS with islands; Q-factor; capacitor; chip resistor; defected ground structure with islands; dumbbell-shaped DGSI; external lumped element; lumped element effects; microstrip signal line; parallel resonator; resonant frequency; Capacitance; Capacitors; Cutoff frequency; Equivalent circuits; Information technology; Microstrip resonators; Q factor; Resistors; Resonant frequency; Shape control; DGS; DGS with islands; controlled resonators;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2006. IEEE MTT-S International

Conference_Location

San Francisco, CA

ISSN

0149-645X

Print_ISBN

0-7803-9541-7

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2006.249393

Filename

4015123