Accession Number:

ADA242577

Title:

Three Dimensional Transient Analysis of Microstrip Circuits in Multilayered Anisotropic Media

Descriptive Note:

Annual rept. 1 Oct 90-30 Sep 91,

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE RESEARCH LAB OF ELECTRONICS

Personal Author(s):

Report Date:

1991-11-14

Pagination or Media Count:

92.0

Abstract:

The coupled-wave theory is generalized to analyze the diffraction of waves by chiral gratings for arbitrary angles of incidence and polarizations. Numerical results for the Stokes parameters of diffracted Florquet modes versus the thickness of chiral gratings with various chiralities are calculated. Both horizontal and vertical incidences are considered for illustration. The diffracted waves from chiral gratings are in general elliptically polarized and in some particular instances, it is possible for chiral gratings to convert a linearly polarized incident field into two nearly circularly polarized Floquet modes propagating in different directions. A general spectral domain formulation to the problem of radiation of arbitrary distribution of sources embedded in a horizontally stratified arbitrary magnetized linear plasma is developed. The fields are obtained in terms of electric and magnetic type dyadic Greens functions. The formulation is considerably simplified by using the kDB system of coordinates in conjunction with the Fourier transform. The distributional singular behavior of the various dyadic Greens functions in the source region is investigated and taken into account by extracting the delta function singularities. Finally, the fields in any arbitrary layer are obtained in terms of appropriately defined global upward and downward reflection and transmission matrices.

Subject Categories:

  • Optics
  • Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE