Substrate Integrated Waveguide (SIW) With Koch Fractal Electromagnetic Bandgap Structures (KFEBG) for Bandpass Filter Design

Author

de Dios Ruiz, Juan ; Martinez-Viviente, Felix L. ; Alvarez-Melcon, Alejandro ; Hinojosa, Juan

Author_Institution

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

Volume

25

Issue

3

fYear

2015

fDate

Mar-15

Firstpage

160

Lastpage

162

Abstract

High-performance bandpass filters (BPFs) based on substrate integrated waveguide (SIW) and half mode SIW (HMSIW) with Koch fractal electromagnetic bandgap (KFEBG) patterns etched on the waveguide surface are proposed. These BPFs are designed using a new methodology. The BPF responses are improved by applying a chirped and tapered technique to the KFEBG patterns which exhibit a radius-to-period ratio r/a ≥ 0.5. Simulation results and experimental verification are presented. Good values for insertion losses and stopband rejection are achieved.

Keywords

band-pass filters; band-stop filters; photonic band gap; substrate integrated waveguides; waveguide filters; BPF; KFEBG; Koch fractal electromagnetic bandgap structure; bandpass filter design; half mode SIW; insertion loss; stopband rejection; substrate integrated waveguide; waveguide surface; Band-pass filters; Chirp; Electromagnetic waveguides; Fractals; Microwave filters; Periodic structures; Substrates; Bandpass filters (BPFs); Koch fractal; electromagnetic bandgap (EBG); substrate integrated waveguide (SIW);

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2015.2390537

Filename

7019000