Title :
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
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;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2006.880691
