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Simple modelling of DGS to design 1D‐PBG low‐pass filters
Author(s) -
Garde Ieltxu,
Yábar Miguel Javier,
del Río Carlos
Publication year - 2003
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.10878
Subject(s) - microwave , microstrip , ground plane , simple (philosophy) , electronic engineering , filter (signal processing) , engineering , photonic crystal , photonic bandgap , optoelectronics , computer science , topology (electrical circuits) , materials science , electrical engineering , telecommunications , philosophy , epistemology , antenna (radio)
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