Shadow-zone diffraction patterns for triangular obstacles

A simplified ray-optics (scalar) theory is presented which can be used to calculate interference patterns in the shadow of a diffracting obstacle whose transverse profile consists of two or more straight line segments. The theory is applicable when the pathlength-to-wavelength ratio is large and the...

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Bibliographic Details
Published in:I.R.E. transactions on antennas and propagation 1973-01, Vol.21 (1), p.121-124
Main Author: Carlson, A.
Format: Article
Language:English
Subjects:
Closed-form solution
Frequency
Fresnel reflection
Geometry
Interference
Microwave propagation
Microwave theory and techniques
Physical theory of diffraction
Testing
Upper bound
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Description
Summary:A simplified ray-optics (scalar) theory is presented which can be used to calculate interference patterns in the shadow of a diffracting obstacle whose transverse profile consists of two or more straight line segments. The theory is applicable when the pathlength-to-wavelength ratio is large and the diffraction angle is small, conditions typical of terrestrial microwave diffraction links over conical mountain peaks. Scale-model test results show that the theory quite accurately predicts the pattern structure.
ISSN:0018-926X
0096-1973
1558-2221
DOI:10.1109/TAP.1973.1140412