Theory of biaxial graded-index optical fiber

The problem of wave propagation in a biaxial graded-index fiber with circular symmetry is considered. The problem is formulated in terms of four first-order differential equations for the tangential components of the electric and magnetic fields. A general solution method for solving systems of differential equations is presented. This solution method is then used to solve the system of equations for a particular example of a biaxial graded-index fiber. Numerical results for the propagation constant in the fiber are also given

Computer code for scattering from impedance bodies of revolution. Part 3: Surface impedance with s and phi variation. Analytical and numerical results

The third phase of the development of the computer codes for scattering by coated bodies that has been part of an ongoing effort in the Electromagnetics Laboratory of the Electrical Engineering and Computer Science Department at the University of Illinois at Chicago is described. The work reported discusses the analytical and numerical results for the scattering of an obliquely incident plane wave by impedance bodies of revolution with phi variation of the surface impedance. Integral equation formulation of the problem is considered. All three types of integral equations, electric field, magnetic field, and combined field, are considered. These equations are solved numerically via the method of moments with parametric elements. Both TE and TM polarization of the incident plane wave are considered. The surface impedance is allowed to vary along both the profile of the scatterer and in the phi direction. Computer code developed for this purpose determines the electric surface current as well as the bistatic radar cross section. The results obtained with this code were validated by comparing the results with available results for specific scatterers such as the perfectly conducting sphere. Results for the cone-sphere and cone-cylinder-sphere for the case of an axially incident plane were validated by comparing the results with the results with those obtained in the first phase of this project. Results for body of revolution scatterers with an abrupt change in the surface impedance along both the profile of the scatterer and the phi direction are presented

Studies of antennas for space vehicles

http://deepblue.lib.umich.edu/bitstream/2027.42/8065/5/bad4396.0001.001.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/8065/4/bad4396.0001.001.tx

Electromagnetic scattering from radially inhomogeneous media

http://deepblue.lib.umich.edu/bitstream/2027.42/8064/5/bad4394.0001.001.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/8064/4/bad4394.0001.001.tx

Electromagnetic scattering

Electromagnetic Scatterin

Electromagnetic scattering/ Edit : Piergiorgio L. E. Uslenghi

x, 801 hal.: ill.; 21 cm

Isorefractive wedge

The problem of diffraction by an isorefractive wedge of arbitrary angle is solved with the method of separation of variables in the frequency domain, when the incident field is either a plane wave propagating in a direction perpendicular to the edge of the wedge or a line source parallel to the edge. The dispersion relation is derived, and is solved explicitly for certain wedge angles that are commensurable to Pi greco radians. The modal expansion coefficients in the eigenfunction series solutions for the electromagnetic field components are determined as residues of suitable meromorphic function

Comparison Between Keller's and Ufimtsev's Theories for the Strip.

http://deepblue.lib.umich.edu/bitstream/2027.42/20913/2/rl0507.0001.001.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/20913/1/rl0507.0001.001.tx