Quasi-static modeling of defected ground structure

Karmakar, Nemai Chandra; Roy, Sushim Mukul; Balbin, Isaac

doi:10.1109/tmtt.2006.873633

Cited by 93 publications

(50 citation statements)

References 10 publications

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“…From the studies, the DGS width is found slightly or less impact to the variation of the resonant frequencies. This is due to the lack of tightness of the current density in the DGS width direction [15]. However, the DGS length is significantly and gives a huge impact to the resonant frequencies.…”

Section: Resultsmentioning

confidence: 99%

Parametric studies on effects of defected ground structure (DGS) for dual band bandstop microstrip filter

Mahmud¹,

Razalli²,

Rahim³

et al. 2017

EPJ Web Conf.

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Abstract.A dual-band bandstop microstrip filter is proposed and designed by using microstrip resonator with Defected Ground Structure (DGS). The DGS are placed in the ground plane to obtain high attenuation of the bandstop filter response. The proposed is designed by using R04003C printed circuit board with dimension of 38 mm x 20 mm. Simulated result shows an insertion loss of -12.31 dB, a return loss at -1.75 dB for center frequency at 2.4 GHz and insertion loss of -22.93 dB, a return loss of -0.78 dB for center frequency at 5.8 GHz The results of simulated in different parameters of DGS is analysed and discussed.

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Section: Resultsmentioning

confidence: 99%

Parametric studies on effects of defected ground structure (DGS) for dual band bandstop microstrip filter

Mahmud¹,

Razalli²,

Rahim³

et al. 2017

EPJ Web Conf.

View full text Add to dashboard Cite

show abstract

“…The width of the ring (d) is chosen here to be 0.6 mm. The width of 0.6 mm was chosen as this is the width that corresponds to the maximum concentration of the current distribution [6]. This optimum width changes slightly with an abrupt increase or decrease of the etched circular pattern radii, but 0.6 mm is a good approximation for which the computed results match with the simulated or measured ones.…”

Section: Simulation and Experimental Resultsmentioning

confidence: 99%

An Equivalent Circuit Model for a Dumbbell-Shaped DGS Microstrip Line

Woo¹,

Lee²

2014

Journal of electromagnetic engineering and science

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This paper presents an equivalent circuit model for a dumbbell-shaped defected ground structure (DGS) in a microstrip line. The effects of equivalent circuit elements of a dumbbell-shaped DGS and their magnetic coupling to the host transmission line are modeled as a simple lumped-element circuit. In addition, simple approximate expressions to determine the main circuit parameters for this model are presented. The transfer characteristic calculated by the proposed circuit model is compared with the results of EM simulation and measurement. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/ by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. ⓒ

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“…In the DGS, the narrow etched gap can be modeled as a quasi-static capacitance [18]. The transmission line model for the etched pattern on the ground plane is shown in Fig.…”

Section: Circuit Model and Resonance Propertiesmentioning

confidence: 99%

A Simple Model for a DGS Microstrip Line with Stepped Impedance Slot-Lines

Woo¹,

Lee²,

Nam³

2015

Journal of electromagnetic engineering and science

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In this paper, a simple equivalent circuit model for a defected ground structure (DGS) microstrip line with stepped impedance slot-lines in the ground plane is presented. In addition, an analytic expression for the resonance frequency of the proposed structure is derived. In equivalent circuit modeling, the capacitance and the inductance of the resonance circuit are evaluated from the dimensions of the etched pattern in the ground plane. The resonance frequencies calculated from the proposed method are compared with those obtained with an electromagnetic (EM) simulation.Key Words: DGS, Equivalent Circuit Model, Stepped Impedance Slot-Line. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/ by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. ⓒ

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Quasi-static modeling of defected ground structure

Cited by 93 publications

References 10 publications

Parametric studies on effects of defected ground structure (DGS) for dual band bandstop microstrip filter

Parametric studies on effects of defected ground structure (DGS) for dual band bandstop microstrip filter

An Equivalent Circuit Model for a Dumbbell-Shaped DGS Microstrip Line

A Simple Model for a DGS Microstrip Line with Stepped Impedance Slot-Lines

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