Title :
Compact bandstop filter using defected ground structure (DGS)
Author :
Rehman, Sajjad Ur ; Sheta, Abdel Fattah ; Alkanhal, Majeed
Author_Institution :
Electr. Eng. Dept., King Saud Univ., Riyadh, Saudi Arabia
Abstract :
This paper presents a new structure to implement compact bandstop filters by employing coupled DGS resonators etched in the ground plane. The proposed bandstop filter consists of symmetrical DGS resonators with a microstrip excitation to obtain a bandstop filter response. By adjusting space S between the two DGS coupled resonators, the bandwidth of the bandstop filter can be easily controlled. A bandstop filter is designed, analyzed and implemented on FR4 dielectric substrate to operate at 2 GHz. The measured results are in good agreement with simulations.
Keywords :
UHF filters; UHF resonators; band-stop filters; defected ground structures; dielectric materials; resonator filters; FR4 dielectric substrate; bandstop filter response; compact bandstop filter; coupled DGS resonators; defected ground structure; frequency 2 GHz; ground plane; symmetrical DGS resonators; Band pass filters; Filtering theory; Microstrip; Microstrip filters; Microwave filters; Resonator filters; DGS; Filters; bandstop DGS resonators; bandstop filters;
Conference_Titel :
Electronics, Communications and Photonics Conference (SIECPC), 2011 Saudi International
Conference_Location :
Riyadh
Print_ISBN :
978-1-4577-0068-2
Electronic_ISBN :
978-1-4577-0067-5
DOI :
10.1109/SIECPC.2011.5876972
