The effect of a dielectric cover on the input impedance of rectangular microstrip antennas |
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Authors: | Fan Zhibo Huang Jingxi |
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Institution: | (1) College of Electronic Information, Wuhan University, 430072 Wuhan, China |
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Abstract: | The effect of the thickness and relative permittivity of a dielectric cover on a rectangular microstrip antenna is analyzed.
The method is based upon the integral equation formulation. The input impedance of the rectangular microstrip antenna is calculated
as a function of the thickness and relative permittivity of a dielectric cover, after solving the integral equations by Galerkin's
method. Computed results for the input impedance are presented and some are compared with the available experimental data.
It is shown from the computed results that the resonant frequency and input impedance are sensitive to variations of the cover
parameters. Because of the limited bandwidth presented by the rectangular microstrip antenna, the effect of the dielectric
cover has to be carefully taken into account in the design of the antenna.
Fan Zhibo: born in March 1963, Ph. D. Current research interest is in microwave and antennas |
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Keywords: | input impedance microstrip antennas rectangular microstrip antenna |
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