Improving frequency response of microstrip filters using defected ground and defected microstrip structures

A. Tirado-Mendez, H. Jardon-Aguilar, R. Flores-Leal, E. Andrade-Gonzalez, F. Iturbide-Sanchez

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

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.

Original languageEnglish
Pages (from-to)77-90
Number of pages14
JournalProgress In Electromagnetics Research C
Volume13
DOIs
StatePublished - 2010
Externally publishedYes

Fingerprint

Dive into the research topics of 'Improving frequency response of microstrip filters using defected ground and defected microstrip structures'. Together they form a unique fingerprint.

Cite this