With its bore sight direction along z, a square aperture was observed to have half-power beam widths

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With its bore sight direction along z, a square aperture was observed to have half-power beam widths of 3o in the both x-z and y-z planes. Determine its directivity in decibels.
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Fundamentals of Applied Electromagnetics

ISBN: 978-0132139311

6th edition

Authors: Fawwaz T. Ulaby, Eric Michielssen, Umberto Ravaioli

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