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

fYear

2012

fDate

28-29 Dec. 2012

Firstpage

520

Lastpage

523

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Devices and Intelligent Systems (CODIS), 2012 International Conference on

Conference_Location

Kolkata

Print_ISBN

978-1-4673-4699-3

Type

conf

DOI

10.1109/CODIS.2012.6422253

Filename

6422253