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Influence of surface impedance on radiation fields of spherical antennas excited by radially oriented electric dipole is investigated by using a Green’s function for a space outside a spherical scatterer.… Click to show full abstract
Influence of surface impedance on radiation fields of spherical antennas excited by radially oriented electric dipole is investigated by using a Green’s function for a space outside a spherical scatterer. This approach allows us to obtain analytical expressions for radiation fields of an impedance spherical antenna in the wave zone. The spherical antenna with the scatterer coated with a metamaterial layer is also considered. The surface impedance required for radiomasking of the spherical scatterer of resonant dimensions was estimated by mathematical modeling.
Journal Title: Progress in Electromagnetics Research Letters
Year Published: 2017
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