Concentric Ring-Shaped Defected Ground Structures for Microstrip Applications

Debatosh Guha, S. N. BISWAS, M. Biswas, Jawad Y. Siddiqui, Yahia M. M. Antar

IEEE Antennas and Wireless Propagation Letters · 2006 · 120 citations · 18 references

Concepts

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.

References

18