Radiation From a Dielectric Coated Hemi spherical Conductor Fed by a Coaxial Transmission Line
نویسندگان
چکیده
Abstruct-A dielectric coated hemispherical conductor mounted on an infinite perfectly conducting ground plane and fed by a coaxial transmission line is investigated. Green's functions for the region above the ground plane are derived with separated homogeneous and particular solution parts so as to be compatible with numerical analysis techniques. A magnetic field integral equation is constructed in terms of the unknown annular aperture tangential electric field and is solved by the method of moments. A comparison between the characteristics of the dielectric coated hemispherical conductor and a flush-mounted coaxial line with an infinite homogeneous region above the ground plane is presented for the tangential aperture electric field, the coaxial line apparent input impedance, and the far radiated field.
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