Simple modelling of DGS to design 1D-PBG low-pass filters

✍ Scribed by Ieltxu Garde; Miguel Javier Yábar; Carlos del Río

• Publisher: John Wiley and Sons
• Year: 2003
• Tongue: English
• Weight: 296 KB
• Volume: 37
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.10878

✦ Synopsis

Abstract

The use of defected ground structures (DGSs) is being intensively explored by microwave filter designers. DGSs are one possible implementation of a 1D photonic band gap (1D‐PBG), in which some defect structures are patterned on the ground plane of a microstrip circuit. In this paper, the relation between the behaviour of DGS structures and classical microwave filter design theory is established. In particular, a simple model procedure using DGS structures, based on the classical microwave filter design theory, is presented. In order to illustrate this method, two low‐pass filters are designed, fabricated, and measured. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 37: 228–232, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10878