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.
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References
Garg R, Long S A. Resonant frequency of electrically thick rectangular microstrip antennas. Electron Lett, 1987,23(21):1149–115
Perlmutter P, Shtrikman S, Treves D. Electric surface current Model for the analysis of microstrip antennas with application to rectangular elements. IEEE Trans Antennas Propagat, 1985, Ap-33:301–311
Pribeticj J. Modelling of microstrip antenna with dieletric protective layer for lossy medium. Electron Lett, 1988,24(23):1464–1465
Alexopoulos N G, Jackson D R. Fundamental superstrate (cover) effects on printed circuit antennas. IEEE Trans Antennas Propagat, 1984, Ap-32:807–815
Soares S J, Fonseca S B D A, Diarola A J. The effect of a dielectric cover on the current distribution and input impedance of printed diploes. IEEE Trans Antennas Propagat, 1984, Ap-32:1149–1153
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Fan Zhibo: born in March 1963, Ph. D. Current research interest is in microwave and antennas
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Zhibo, F., Jingxi, H. The effect of a dielectric cover on the input impedance of rectangular microstrip antennas. Wuhan Univ. J. of Nat. Sci. 1, 85–88 (1996). https://doi.org/10.1007/BF02827587
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DOI: https://doi.org/10.1007/BF02827587