<abstract xmlns="http://www.w3.org/1999/xhtml"><p>A lumped-<italic>LC</italic> equivalent circuit to model a novel rectangular bracket shaped defected ground structure (DGS) is presented in this paper. The presented equivalent circuit can accurately predicate the frequency responses, in terms of the magnitude and phase responses of <italic>S</italic> parameters, of the studied DGS. The lumped <italic>LC</italic> parameters of the presented model are extracted based on a unit cell of the DGS. Further, the model is found to be applicable in microwave engineering, including microwave filter designs. Some design examples are presented and examined. The studied DGS based microwave filters characterize maximum passband flatness, sharp skirt between the passband and stopband and wide stopband. The studied equivalent circuit model can accurately predicate the frequency responses including the magnitude and phase of <italic>S</italic> parameters.</p></abstract>

A lumped-LC equivalent circuit to model a novel rectangular bracket shaped defected ground structure (DGS) is presented in this paper. The presented equivalent circuit can accurately predicate the frequency responses, in terms of the magnitude and phase responses of S parameters, of the studied DGS. The lumped LC parameters of the presented model are extracted based on a unit cell of the DGS. Further, the model is found to be applicable in microwave engineering, including microwave filter designs. Some design examples are presented and examined. The studied DGS based microwave filters characterize maximum passband flatness, sharp skirt between the passband and stopband and wide stopband. The studied equivalent circuit model can accurately predicate the frequency responses including the magnitude and phase of S parameters.

An equivalent circuit model of a rectangular bracket shaped DGS and its microwave filter applications

University of Electronic Science and Technology of China

Journal of Electrical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

A lumped-LC equivalent circuit to model a novel rectangular bracket shaped defected ground structure (DGS) is presented in this paper. The presented equivalent...

An equivalent circuit model of a rectangular bracket shaped DGS and its microwave filter applications

Publié en ligne: 02 mars 2019

Pages: 32 - 38

Reçu: 11 déc. 2018

DOI: https://doi.org/10.2478/jee-2019-0004

Mots clés
defected ground structure, lumped element, microstrip periodic structure, microwave filter

© 2019 Baidenger Agyekum Twumasi et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

An equivalent circuit model of a rectangular bracket shaped DGS and its microwave filter applications

Publié en ligne: 02 mars 2019

Pages: 32 - 38

Reçu: 11 déc. 2018

DOI: https://doi.org/10.2478/jee-2019-0004

Mots clésdefected ground structure, lumped element, microstrip periodic structure, microwave filter

© 2019 Baidenger Agyekum Twumasi et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
defected ground structure, lumped element, microstrip periodic structure, microwave filter