Title :
Design and performance improvement of lowpass filter by using Defected Microstrip Structure
Author :
Sinhga, R. ; Moyra, T.
Author_Institution :
Dept. of Electron. & Commun. Eng., Nat. Inst. of Technol., Agartala, Agartala, India
Abstract :
In this paper, an elliptic-function lumped element lowpass filter is proposed and designed. The proposed LPF provides cut-off frequency at 1GHz and attenuation pole at 1.06 GHz with good sharpness factor and negligible passband insertion loss. Finally, the attenuation bandwidth is improved by the removal of spurious transmission peak which is occurs at about 3.2 GHz using 50 ohm microstrip line with spiral-Shape Defected Microstrip Structure (DMS). The designed filter is useable in modern microwave and millimeter wave communication systems.
Keywords :
UHF filters; low-pass filters; microstrip lines; microwave filters; attenuation bandwidth improvement; elliptic-function lumped element lowpass filter; frequency 1 GHz; frequency 1.06 GHz; frequency 3.2 GHz; microstrip line; microwave communication system; millimeter wave communication system; passband insertion loss; performance improvement; resistance 50 ohm; spiral-shape defected microstrip structure; Attenuation; Cutoff frequency; Impedance; Microstrip; Microstrip filters; Microwave communication; Microwave filters; Defected Microstrip Structure (DMS); Elliptic function; lowpass filter;
Conference_Titel :
Communications, Devices and Intelligent Systems (CODIS), 2012 International Conference on
Conference_Location :
Kolkata
Print_ISBN :
978-1-4673-4699-3
DOI :
10.1109/CODIS.2012.6422253
