Quasi-static analysis of defected ground structure

Nemai Chandra Karmakar, Sushim Mukul Roy, Isaac Balbin, Gerhard Frederick Swiegers

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

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A quasi-static equivalent circuit model of a dumbbell shaped defected ground structure (DGS) is developed. The equivalent circuit model is derived from the equivalent inductance and capacitance developed due to the perturbed returned current path on the ground and the narrow gap, respectively. The theory is validated against the commercial full-wave solver CST Microwave Studio. Finally, the calculated results are compared with the measured results. Good agreement between the theory, the commercially available numerical analyses and the experimental results validates the developed theoretical model.

Original languageEnglish
Title of host publicationTencon 2005 - 2005 IEEE Region 10
EditorsR Harris, H King
Place of PublicationNJ USA
PublisherSwinburne Press
Pages1 - 6
Number of pages6
ISBN (Print)0780393112, 9780780393110
Publication statusPublished - 2005
EventIEEE Tencon (IEEE Region 10 Conference) 2005 - Crown Promenade Hotel, Melbourne, Australia
Duration: 21 Nov 200524 Nov 2005
https://ieeexplore.ieee.org/xpl/conhome/4084859/proceeding (Proceedings)


ConferenceIEEE Tencon (IEEE Region 10 Conference) 2005
Abbreviated titleTENCON 2005
Internet address


  • Bandstop filter
  • Defected ground structure
  • Electromagnetic bandgap
  • Frequency spectrum
  • High impedance surface
  • Lowpass filter
  • Photonic bandgap

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