Concentric Ring-Shaped Defected Ground Structures for Microstrip Applications

Author

Guha, Debatosh ; Biswas, Sujoy ; Biswas, Manotosh ; Siddiqui, Jawad Y. ; Antar, Yahia M M

Author_Institution

Inst. of Radio Phys. & Electron., Univ. of Calcutta

Volume

5

Issue

1

fYear

2006

Firstpage

402

Lastpage

405

Abstract

A new defected ground structure (DGS) consisting of concentric circular rings in different configurations is experimentally studied to examine the stopband characteristics. Unlike previous DGS designs, a metallic shielding is introduced at the back of the DGS to suppress any leakage or radiation, and this would be advantageous for microwave circuit applications. A wide stopband is demonstrated with a set of prototypes designed for X-band. Its application to suppressing mutual coupling in microstrip patch arrays is demonstrated

Keywords

electromagnetic shielding; microstrip antenna arrays; microwave circuits; X-band; concentric circular ring-shaped defected ground structures; metallic shielding; microstrip applications; microstrip patch arrays; microwave circuit applications; mutual coupling suppression; stopband characteristics; wide stopband; Broadband antennas; Etching; Microstrip antenna arrays; Microstrip antennas; Microstrip filters; Microwave circuits; Mutual coupling; Physics; Prototypes; Shape; Defected ground structure (DGS); microstrip antennas with DGS; wideband DGS;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2006.880691

Filename

1703944