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Diffraction of an arbitrary electromagnetic optical field by a conducting curved wedge is considered. The diffracted field according to Keller's geometrical theory of diffraction (GTD) can be… (More)

The free-space scalar Green's function g has an R^{-1} singularity, where R is the distance between the source and observation points. The second derivatives of g have R^{-3} singularities, which are… (More)

The exact solution of the diffraction problem for a plane electromagnetic wave at oblique incidence on a perfectly conducting half-plane was obtained more than 30 years ago. Recent advances in the… (More)

- Gilles Deschamps
- 1967

The extension of holographic techniques to radio frequencies offers new possibilities. The recording can be done by scanning an area with a probe. The reference wave can be replaced by a signal whose… (More)

- Gilles Deschamps
- 1978

Les transferts linguistiques etablis par les populations allophones ont fait au Quebec l’objet d’un bon nombre d’etudes demographiques et sociologiques. Elles ont en outre tres generalement mis en… (More)

The use of points on the surface of the poincare sphere to represent the polarization state of fully polarized electromagnetic fields is extended to partially polarized fields by representing their… (More)

It is well known that the geometrical optics approximation, generally valid for high-frequency fields, fails in the vicinity of a caustic. A systematic procedure of V. P. Maslov that remedies this… (More)

- Gilles Deschamps
- 1973

The asymptotic form of the diffracted field produced by a plane electromagnetic wave of arbitrary polarization incident obliquely on a conducting half-plane is expressed very simply in terms of the… (More)

An asymptotic version of Poincare’s lemma is defined and solutions are obtained with the calculus of exterior differential forms. They are used to construct the asymptotic approximations of… (More)

The possibility of radiating an equal amount of power in all directions and all polarizations, using a two-port antenna excited by two independent noise sources, is considered.