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International Journal of Antennas and Propagation
Volume 2017 (2017), Article ID 2018527, 22 pages
https://doi.org/10.1155/2017/2018527
Review Article

Defected Ground Structure: Fundamentals, Analysis, and Applications in Modern Wireless Trends

1Department of Electronics & Communication Engineering, Bhagwan Parshuram Institute of Technology, Sector 17, Rohini 110089, India
2School of Computational and Integrative Sciences, Jawaharlal Nehru University, Delhi 110067, India
3Department of Electronics & Communication Engineering, ABES Engineering College, Ghaziabad 201009, India

Correspondence should be addressed to Mukesh Kumar Khandelwal

Received 26 September 2016; Revised 1 December 2016; Accepted 21 December 2016; Published 1 February 2017

Academic Editor: Ikmo Park

Copyright © 2017 Mukesh Kumar Khandelwal et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Slots or defects integrated on the ground plane of microwave planar circuits are referred to as Defected Ground Structure. DGS is adopted as an emerging technique for improving the various parameters of microwave circuits, that is, narrow bandwidth, cross-polarization, low gain, and so forth. This paper presents an introduction and evolution of DGS and how DGS is different from former technologies: PBG and EBG. A basic concept behind the DGS technology and several theoretical techniques for analysing the Defected Ground Structure are discussed. Several applications of DGS in the field of filters, planar waveguides, amplifiers, and antennas are presented.