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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2010-04-15
Improving Frequency Response of Microstrip Filters Using Defected Ground and Defected Microstrip Structures
By
Jose Alfredo Tirado-Mendez,

    Dr. Jose Alfredo Tirado-Mendez

    Research and Advanced Studies Center of National Polytechnic Institute

    Mexico

    Homepage

Hildeberto Jardon-Aguilar,

    Dr. Hildeberto Jardon-Aguilar

    Research and Advanced Studies Center of National Polytechnic Institute

    Mexico

    Homepage

Ruben Flores-Leal,

    Dr. Ruben Flores-Leal

    Research and Advanced Studies Center of National Polytechnic Institute

    Mexico

    Homepage

Edgar Andrade-Gonzalez,

    Dr. Edgar Andrade-Gonzalez

    Metropolitan Autonomous University Azcapotzalco

    Mexico

    Homepage

Flavio Iturbide-Sanchez

    Dr. Flavio Iturbide-Sanchez

    I. M. Systems Group, Inc.

    USA

    Homepage

Progress In Electromagnetics Research C, Vol. 13, 77-90, 2010
doi:10.2528/PIERC10011505 | Google Scholar

Abstract
In this work, the introduction of Defected Microstrip Structures and Defected Ground Structures is presented to improve the performance of a traditional stepped-impedance microstrip lowpass filter. The attenuation in the stop-band is enhanced by more than 15 dB and selectivity is increased, without modifying the insertion loss in the pass band. A comparison of characteristics in filters is made when the combination of Defected Ground and Defected Microstrip Structures, as well as when only the first one are used. A model of the Defected Microstrip Structure and the corresponding equations to obtain the equivalent lumped and distributed element values are also given.
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Citation
Jose Alfredo Tirado-Mendez, Hildeberto Jardon-Aguilar, Ruben Flores-Leal, Edgar Andrade-Gonzalez, and Flavio Iturbide-Sanchez, "Improving Frequency Response of Microstrip Filters Using Defected Ground and Defected Microstrip Structures," Progress In Electromagnetics Research C, Vol. 13, 77-90, 2010.
doi:10.2528/PIERC10011505
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