Microwave and Optical Technology Letters

A new logarithmic method to minimize the size of low-pass filter using multilayer and defected ground structure technique

Corresponding Author

Ahmed Boutejdar

[email protected]

Chair of Microwave and Communication Engineering, Otto von Guericke University Magdeburg, Germany

Chair of Microwave and Communication Engineering, Otto von Guericke University Magdeburg, GermanySearch for more papers by this author

Abbas Omar,

Abbas Omar

Chair of Microwave and Communication Engineering, Otto von Guericke University Magdeburg, Germany

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Edmund Burte,

Edmund Burte

Chair of Semiconductor Technology, Otto von Guericke University Magdeburg, Germany

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Anatoliy Batmanov,

Anatoliy Batmanov

Chair of Semiconductor Technology, Otto von Guericke University Magdeburg, Germany

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Reinhard Mikuta,

Reinhard Mikuta

Chair of Semiconductor Technology, Otto von Guericke University Magdeburg, Germany

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Ahmed Boutejdar,

Corresponding Author

Ahmed Boutejdar

[email protected]

Chair of Microwave and Communication Engineering, Otto von Guericke University Magdeburg, Germany

Chair of Microwave and Communication Engineering, Otto von Guericke University Magdeburg, GermanySearch for more papers by this author

Abbas Omar,

Abbas Omar

Chair of Microwave and Communication Engineering, Otto von Guericke University Magdeburg, Germany

Search for more papers by this author

Edmund Burte,

Edmund Burte

Chair of Semiconductor Technology, Otto von Guericke University Magdeburg, Germany

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Anatoliy Batmanov,

Anatoliy Batmanov

Chair of Semiconductor Technology, Otto von Guericke University Magdeburg, Germany

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Reinhard Mikuta,

Reinhard Mikuta

Chair of Semiconductor Technology, Otto von Guericke University Magdeburg, Germany

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First published: 19 August 2011

https://doi.org/10.1002/mop.26352

Citations: 5

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Abstract

A novel three-pole low-pass filter is designed using metal-loaded slots etched in the ground plane, and low impedance microstrip line as microstrip capacitor. An equivalent circuit model of a defected ground structure (DGS) is applied to study the characteristics of DGS. Parameters of the model are extracted from the EM simulation results by matching it to a one-pole Butterworth low-pass filter. The theory is validated against the commercial Microwave Office. The new low-pass filter (LPF) is very compact and provides sharp transition band and a wide stop-band. Additional to the new mathematical method (natural logarithm function), a multilayer technique will be used to improve the compactness of the structure. Finally, the proposed structure is implemented, and the measurement results are found to be in good agreement with the simulation results. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2561–2566, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26352

REFERENCES

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Volume53, Issue11

November 2011

Pages 2561-2566

A new logarithmic method to minimize the size of low-pass filter using multilayer and defected ground structure technique

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A new logarithmic method to minimize the size of low-pass filter using multilayer and defected ground structure technique

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