Efecto de la reducción simétrica del plano de tierra en líneas microstrip

Abstract

The variations of the characteristic impedance and wavelength of a symmetrical biplate line with the width of the upper plate held constant are studied, for several widely used dielectrics, by the method of moments with a nonuniform distribution of pulse basis functions. Results presented show that, for plastic substrates, a lower plate as narrow as twice the width of the upper results in a Z0 that differs from the corresponding microstrip impedance by less than a 4%.