Diagnostics Of Fields Excited On Finite Dielectric Structures By Incident Microwaves

G. Tricoles; E. L. Rope; R. A. Hayward

doi:10.1117/12.934863

13 December 1983 Diagnostics Of Fields Excited On Finite Dielectric Structures By Incident Microwaves

G. Tricoles, E. L. Rope, R. A. Hayward

Proceedings Volume 0370, Holographic Data Nondestructive Testing; (1983) https://doi.org/10.1117/12.934863
Event: Holographic Data Nondestructive Testing, 1982, Dubrovnik, Croatia

Abstract

Microwaves incident on finite dielectric structures, such as slabs and hollow wedges, excite a variety of fields that produce complicated interference patterns. This paper describes calculations with the moment method and measurements with a small, probe antenna. The interpretation identifies guided waves, plane waves, and cylindrical waves, and it gives relative amplitudes of these waves. The intensity distribution is a hologram because the guided waves and internal refracted waves are coherent but with distinct propagation constants. Images are formed by reconstruction. In addition, describe a new, angle scanning interferometer that determines angular distributions of fields about dielectric gratings. Mechanismus, which include grating lobes, and specular reflections, are identified.

Citation Download Citation

G. Tricoles, E. L. Rope, and R. A. Hayward "Diagnostics Of Fields Excited On Finite Dielectric Structures By Incident Microwaves", Proc. SPIE 0370, Holographic Data Nondestructive Testing, (13 December 1983); https://doi.org/10.1117/12.934863

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