THE FIELD OF A DIPOLE ABOVE AN INFINITE CORRUGATED PLANE
Abstract
Excitation and propagation of the three dimensional electromagnetic field over an infinite corrugated plane which ioximated by an anisotropic impedance boundary condition is discussed. Emphasis is placed upon effects of surface anisotropy which are not evident in two dimensional treatments. The excitation by a magnetic point dipole is considered in detail. The fields are determined by a scalar wave function which satisfies a mixed boundary condition involving a linear combination of the wave function, its normal derivative and its second order tangential derivative. The exact formal solution is first derived, and then the radiated far field and the surface wave far field are evaluated separately. Both the phase and the amplitude of the excited surface wave are de pendent upon the direction of observation. Numerical results are given. The physical significance of this solution is discussed. A comparison is made between this problem and the theory of ship waves.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1963
- Accession Number
- AD0406140
Entities
People
- Steven N. Karp
- T. S. Chu
Organizations
- New York University