Title : ( Novel Tunable Band-Reject Filter Using Modified C-Shaped Defected Ground Structure )
Authors: rajabmohammad begenji , Mohammad Hassan Neshati ,
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Abstract
In this paper, a novel tunable DGS filter is proposed to provide a frequency-rejection property at centre frequency of 2.4 GHz. The new structure has a simple and compact shape and its rejection characteristic is sharp at stop band. Different parameters of the DGS have been adjusted for the best frequency response to reject the desired frequency. The proposed filter is numerically investigated using HFSS and a parametric study was carried out. Results show that for capacitor values of 0.35 pF to 3 pF, the centre frequency of the band reject filter is varied from 2.512 GHz to 2.292 GHz. Transmission coefficient of the proposed DGS filter is at least -16.59 dB, which attenuates the desired frequency very well. It exhibits a minimum Q-factor of 67.40, whereas maximum impedance bandwidth is 36 MHz.
Keywords
, Tunable Filter, Bandreject filter, DGS
@inproceedings{paperid:1025094,
author = {Begenji, Rajabmohammad and Neshati, Mohammad Hassan},
title = {Novel Tunable Band-Reject Filter Using Modified C-Shaped Defected Ground Structure},
booktitle = {Progree In Electromagnetic Research-PIER},
year = {2012},
location = {کوالامپور},
keywords = {Tunable Filter; Bandreject filter; DGS},
}
%0 Conference Proceedings
%T Novel Tunable Band-Reject Filter Using Modified C-Shaped Defected Ground Structure
%A Begenji, Rajabmohammad
%A Neshati, Mohammad Hassan
%J Progree In Electromagnetic Research-PIER
%D 2012
