Measurements to Validate the UTD Triple Diffraction Coefficient
Date
2014-07-02Publisher
Institute of Electrical and Electronics EngineersMetadata
Show full item recordAbstract
Measurement results to validate the UTD triple diffraction coefficient are presented. The experimental setup consists of multiple metallic objects, with triangular and rectangular profiles, located inside an anechoic chamber and illuminated by a sector antenna to reproduce a spherical wavefront with a transverse electromagnetic (TEM) incident field. Another sector antenna is moved vertically to collect electromagnetic fields across the second order UTD Incident Shadow Boundaries and in the triple diffraction transition region. The measured and theoretical fields are compared using a free space normalization.
Such comparison is also validated by calculating the mean error, the standard deviation, and root mean square error that occur between the theoretical model and the measured field. The results show excellent agreement between the theoretical third order
UTD solution, employing the novel triple diffraction coefficient, and the experimental results.
Subject
Asymptotic diffraction theorydiffraction
electromagnetic diffraction
electromagnetic edge diffraction
electromagnetic measurements
electromagnetic scattering measurements
geometrical theory of diffraction (GTD)
radio propagation
Uniform Theory of Diffraction