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GTD Analysis of the Radiation Patterns of a Prime Focus Paraboloid with Shroud
M. S. Narasimhan
Published in
Volume: 31
Issue: 5
Pages: 792 - 794
The uniform geometrical theory of diffraction (UGTD) is employed to analyze the far-field radiation patterns of a prime focus paraboloid with a cylindrical shroud. The blockage of the aperture illumination of the dish by the gooseneck and the primary feed is also taken into account in the analysis. Far-field radiation patterns (for 0° ≤ θ ≤ 180°), calculated for a typical prime focus paraboloid with 2 m aperture diameter, designed and fabricated, are compared with the experimentally derived patterns at 8.8 GHz in the E- and H-planes. There is a satisfactory agreement between the two results. Copyright © 1983 by The Institute of Electrical and Electronics Engineers, Inc.
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JournalIEEE Transactions on Antennas and Propagation
Open AccessNo
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