Limit and application range of the slope-diffraction method for wireless communications

We investigate the limitations on the use of the uniform theory of diffraction (UTD) slope-diffraction method for propagation past knife edges. The settled field that is diffracted past rows of buildings, as computed by numerical integration, has the characteristics of amplitude and phase variation...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2003-09, Vol.51 (9), p.2512-2514
Main Authors: Kara, A., Bertoni, H.L., Yazgan, E.
Format: Article
Language:English
Subjects:
Amplitudes
Antennas
Antennas and propagation
Buildings
Cutlery
Diffraction
Mathematical models
Moment methods
Optical propagation
Optical reflection
Optical surface waves
Physical optics
Spline
Surface reconstruction
Surface topography
Wavelengths
Wireless communication
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Summary:We investigate the limitations on the use of the uniform theory of diffraction (UTD) slope-diffraction method for propagation past knife edges. The settled field that is diffracted past rows of buildings, as computed by numerical integration, has the characteristics of amplitude and phase variation with a scale length that is large compared to the wavelength and has small amplitude near the edges. Using this field, it is shown that the error in the UTD slope-diffraction method for diffraction past a final screen is connected with the Fresnel width, as compared to the scale length of the settled field.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2003.816389