Abstract
In this article, car approach is proposed to provide all accurate and fast calculation oil the transmission coefficients of an electromagnetic band-gal) (EBG) structures where patches are periodically inserted into the microstrip line (capacitive loaded EBG microstrip structure). The stopband performance, such as the center frequency. bandwidth, and attenuation, of these EBG structures can be predicted (it a high degree of accuracy through the calculation of the transmission coefficient. The dispersion relation of electromagnetic waves lit the structure is derived. plotted, and analyzed. The grating nature of the structure is demonstrated. This approach can be applied to periodic microstrip structures of a Similar nature e to simplify the analysis and design procedures. (C) 2010 Wiley Periodicals. Inc. Microwave Opt Technol Lett 52: 793-797, 2010: Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25046