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Active and Passive Electronic Components
Volume 27, Issue 2, Pages 107-110
http://dx.doi.org/10.1080/0882751031000116214

A Low-Pass Filter of Wide Stopband with a Novel Multilayer Fractal Photonic Bandgap Structure

1Department of Electronic Engineering, P.O. Box 006, Shanghai Jiao Tong University, No. 1954, Huashan Rd., Shanghai 200030, China
2Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China

Received 14 February 2003; Revised 21 March 2003

Copyright © 2004 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A novel, multilayer fractal PBG is presented here as the substrate for a microstrip line and the resulting configuration builds a low-pass filter of wide stopband. Experimental results in comparison with the corresponding two filters with monolayer PBG show that the proposed filter drastically enhances the width of the stopband.