DocumentCode :
614291
Title :
Reconfigurable bandstop filter using Defected Ground Structure (DGS)
Author :
Rehman, Saif Ur ; Sheta, Abdel Fattah A. ; Alkanhal, Majeed A. S. ; Aziz, Rao Shahid
Author_Institution :
Dept. of Electr. Eng., King Saud Univ., Riyadh, Saudi Arabia
fYear :
2013
fDate :
27-30 April 2013
Firstpage :
1
Lastpage :
4
Abstract :
The paper presents a new compact reconfigurable bandstop filter using Defected Ground Structure (DGS). The proposed reconfigurable bandstop filter is constructed by employing coupled DGS resonators etched in the ground plane. The bandstop filter consists of symmetrical DGS resonators with a microstrip excitation to obtain a bandstop filter response. The reconfigurability is achieved by short circuiting part of the slots etched in the ground plane. A reconfigurable bandstop filter is designed, analyzed, and implemented on Duroid dielectric substrate with 2.2 dielectric constant and 0.78mm thickness. The filter is designed to switch between the two center frequencies 1.40 and 2.25 GHz with approximately 50MHz rejection bandwidth under the condition of 15dB, rejection. The measured results are in good agreement with the simulations.
Keywords :
UHF filters; band-stop filters; defected ground structures; permittivity; resonators; Duroid dielectric substrate; bandstop filter response; compact reconfigurable bandstop filter; coupled DGS resonators; defected ground structure; dielectric constant; frequency 1.40 GHz; frequency 2.25 GHz; ground plane; microstrip excitation; rejection bandwidth; size 0.78 mm; symmetrical DGS resonators; Band-pass filters; Bandwidth; Bridge circuits; Filtering theory; Microwave filters; Resonant frequency; Resonator filters; Bandstop Filter; Defected Ground Structure; Microstrip Filter; Reconfigurable;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electronics, Communications and Photonics Conference (SIECPC), 2013 Saudi International
Conference_Location :
Fira
Print_ISBN :
978-1-4673-6196-5
Electronic_ISBN :
978-1-4673-6194-1
Type :
conf
DOI :
10.1109/SIECPC.2013.6550741
Filename :
6550741
Link To Document :
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