Title :
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
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;
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
DOI :
10.1109/MetaMaterials.2014.6948623
