Title :
Electromagnetic field excited by a line source placed at the edge of an impedance wedge
Author :
Pelosi, Giuseppe ; Tiberio, Roberto ; Rojas, Roberto G.
Author_Institution :
Dept. of Electron. Eng., Florence Univ., Italy
fDate :
7/1/1991 12:00:00 AM
Abstract :
An exact integral representation for the field radiated by a line source located at the edge of an impedance wedge has been obtained. To this end, the plane wave spectrum of the source is used in connection with the plane wave response of the wedge. Uniform high-frequency expressions for the total field are derived from that solution. They include the description of surface wave excitation mechanisms, and provide field patterns that are smooth and continuous across the surface wave shadow boundaries. Numerical examples are presented to investigate these evanescent wave contributions
Keywords :
antenna theory; electromagnetic wave scattering; antennas; electromagnetic field; electromagnetic scattering; evanescent wave; exact integral representation; field patterns; high-frequency expressions; impedance wedge; line source; numerical results; plane wave spectrum; surface wave excitation mechanisms; surface wave shadow boundaries; Anisotropic magnetoresistance; Antennas and propagation; Azimuthal angle; Boundary conditions; Electromagnetic fields; Electromagnetic scattering; Ellipsoids; Laboratories; Surface impedance; Writing;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
