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|Title:||Analysis of total transmission loss and cross-polarization of a hemi-spherical dielectric radome with rain-water layer: A closed form solution|
|Authors:||Leong, M.S. |
|Citation:||Leong, M.S.,Li, L.W.,Ma, X.,Kooi, P.S.,Yeo, T.S. (1998). Analysis of total transmission loss and cross-polarization of a hemi-spherical dielectric radome with rain-water layer: A closed form solution. Journal of Electromagnetic Waves and Applications 12 (6) : 731-752. ScholarBank@NUS Repository.|
|Abstract:||This paper presents a full-wave analysis of cross polarization and transmission loss effects caused by a dielectric hemi-spherical radome and rainfall. The radome covered by a rain-water layer is centre-placed on an aperture on the ground plane and excited by the dominant TE 11 circular waveguide. The dyadic Green's function (DGF) technique that serves as a full-wave analysis is applied in the analysis, instead of the conventional analytical techniques. Numerical computations with excellent accuracy and fast convergence are carried out by using Mathematica package to demonstrate the effects of the radome with a rain-water layer on the far-field power pattern, cross polarization and total transmission loss. It is shown that the antenna radiation performance such as antenna pattern, transmission loss, and cross polarization becomes severely affected when the thickness of the dielectric radome is selected improperly, and is further degraded when rain water accumulates on the dielectric radome.|
|Source Title:||Journal of Electromagnetic Waves and Applications|
|Appears in Collections:||Staff Publications|
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