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The 3D radiation patterns of the tilted impedance wire dipole located over a perfectly conducting infinitely thin finite size screen are investigated by the uniform geometric diffraction theory method. The technique is developed for definition of a slope angle of the wire dipole taking into account the diffraction effects on the screen edges at which the circularly polarized wave in the set directions...
The small-sized radiators (receivers) of electromagnetic waves on the base of the system of six equidistant radial monopoles in the equatorial plane of the conducting sphere are considered. It is shown that for the antenna the various directional patterns by switching phases of voltage sources only for two monopoles can be realized. The considered radiators can be used as a small-sized sensors and...
The characteristics of the radiation field of the monopoles on perfectly conducting spherical scatterer — spherical antennas are discussed in the paper. To solve this problem the authors used the solution for the radiation field of a single monopole excited at the point of contact with the sphere. Monopoles are located in the equatorial plane and driven the individual voltage sources. The dependences...
A semi-analytical model for current estimation on a thin complex-impedance-based monopole, mounted on a perfectly conducting sphere and fed in an arbitrary point of its aperture is proposed. By applying the current thus obtained, the electromagnetic fields excited by the antenna system are determined. The influence of an impedance coating and a feeding point position on the current distribution and...
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