Publication: Microstrip microwave band gap structures
Date
01-04-2008
Authors
Venkatachalam Subramanian
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Abstract
Microwave band gap structures exhibit certain stop band characteristics based on the periodicity, impedance contrast and effective refractive index contrast. These structures though formed in one-, two- and three-dimensional periodicity, are huge in size. In this paper, microstrip-based microwave band gap structures are formed by removing the substrate material in a periodic manner. This paper also demonstrates that these structures can serve as a non-destructive characterization tool for materials, a duplexor and frequency selective coupler. The paper presents both experimental results and theoretical simulation based on a commercially available finite element methodology for comparison. © Indian Academy of Sciences.
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Keywords
Frequency selective switch, Gap width, Microstrip, Microwave band gap