Compact, Wideband Bandstop Filters With Sharp Rejection Characteristic

Author

Mandal, Mrinal Kanti ; Divyabramham, K. ; Sanyal, Subrata

Author_Institution

Electron. & Electr. Commun. Eng. Dept., Indian Inst. of Technol., Kharagpur

Volume

18

Issue

10

fYear

2008

Firstpage

665

Lastpage

667

Abstract

A compact unit of parallel coupled transmission line is presented for design of a compact, sharp-rejection, wideband bandstop filter (BSF). The rejection depth and bandwidth can be easily controlled by the coupled-line parameters. A lossless transmission line model is used for filter analysis. Design equations and graphs are presented in order to facilitate the design procedure. Theoretical prediction is verified in microstrip line by fabricating a prototype single section coupled-line BSF.

Keywords

band-stop filters; microstrip lines; transmission lines; bandstop filters; compact filters; coupled-line parameters; filter analysis; lossless transmission line model; microstrip line; parallel coupled transmission line; sharp rejection characteristic; wideband filters; Band pass filters; Coupling circuits; Filtering theory; Frequency; Impedance; Microstrip filters; Microwave filters; Propagation losses; Transmission line theory; Wideband; Bandstop filter (BSF); coupled-line; microstrip line;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2008.2003454

Filename

4639561