Abstract
Oblate and prolate metallic spheroids located at the interface between isorefractive half-spaces are considered. The electromagnetic fields produced by electric and magnetic dipoles located on the symmetry axis of the structure are determined exactly. Particular cases are discussed, and numerical results are presented for far fields and surface currents.
Highlights
S EVERAL boundary-value problems involving metallic structures, sometimes comprising sharp edges and cavities, and isorefractive media have recently been solved exactly in two and three dimensions [1],[2],[3],[4]
The exact electromagnetic field is found everywhere, and special attention is devoted to the far field and to the current density on the surface of the spheroid
Analytical results for a new canonical problem involving a metallic spheroid, two isorefractive media and a dipole source located along the axis of symmetry of revolution were obtained
Summary
S EVERAL boundary-value problems involving metallic structures, sometimes comprising sharp edges and cavities, and isorefractive media have recently been solved exactly in two and three dimensions [1],[2],[3],[4]. The excellent numerical agreements obtained establish the exact solutions as important benchmarks for the validation of frequency-domain computer codes. Additional exact solutions are obtained for metallic oblate and prolate spheroids whose axis of symmetry is perpendicular to the planar interface that separates two isorefractive half-spaces and contains the center of symmetry of the spheroid. The exact electromagnetic field is found everywhere, and special attention is devoted to the far field and to the current density on the surface of the spheroid. The cases of the oblate and prolate spheroids are analyzed in Sections III and IV, respectively. A detailed discussion of some practical applications of the results obtained in this paper is carried out in Section VII, where problems such as the buoy antenna and the groundstake antenna are briefly examined
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
