Abstract
Radiation characteristics of an insulated dipole antenna immersed in an arbitrary medium are studied using a complete formulation of the problem. Electric and magnetic equivalent surface currents are used to formulate a system of integrodifferential equations. These equations are solved using the method of moments construction with the proper selection of basis functions. The data obtained are found to be in good agreement with the available data in the literature. The effect of the insulator's permittivity on the near field and far field of the dipole is discussed. The use of coating material to control the effective length of the dipole is presented. The effect of the insulator's thickness on the far field is also studied. The input impedance of the insulated antenna in an arbitrary medium is obtained.
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More From: IEE Proceedings H Microwaves, Antennas and Propagation
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