A flat-passband and wide-stopband low-pass filter based on tapered Cauchy microstrip Koch fractal EBG structure

Author

Ruiz, J.D. ; Martinez-Viviente, Felix L. ; Hinojosa, Juan

Author_Institution

Dept. of Electron. & Comput. Eng., Univ. Politec. de Cartagena, Cartagena, Spain

fYear

2014

fDate

25-28 Aug. 2014

Firstpage

139

Lastpage

141

Abstract

This paper presents a tapered and chirped Koch fractal electromagnetic bandgap (KFEBG) structure in microstrip technology that allows achieving a low-pass filter response with improved performance in the passband and stopband regions. Several distribution functions are applied to the Koch fractal patterns etched in the ground plane, together with the width of the microstrip line. Measurement and simulation results are in good agreement and show a flat response in the passband and a wide rejection band in the stopband for the selected Cauchy distribution function.

Keywords

energy gap; fractals; low-pass filters; microstrip lines; Cauchy distribution function; Koch fractal patterns; chirped Koch fractal electromagnetic bandgap structure; distribution functions; flat-passband low-pass filter; ground plane; microstrip line; microstrip technology; passband regions; rejection band; stopband regions; tapered Cauchy microstrip Koch fractal EBG structure; tapered Koch fractal electromagnetic bandgap structure; wide-stopband low-pass filter; Distribution functions; Fractals; Metamaterials; Microstrip; Microstrip filters; Passband; Periodic structures;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2014 8th International Congress on

Conference_Location

Lyngby

Print_ISBN

978-1-4799-3450-8

Type

conf

DOI

10.1109/MetaMaterials.2014.6948623

Filename

6948623