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Calculated equatorial plane radiation patterns produced by a circumferential slot on a cylinder

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2 Author(s)
C. Knop ; Hallicrafters Co., Chicago, IL, USA ; A. Battista

The equatorial plane radiation fields produced by a sinusoidal distribution of axial electric field along a half wavelength circumferential slot on a metallic cylinder of radius a have been computed by means of an IBM-704 electronic computer. Radiation patterns in this plane are given for sizes of cylinder from 1 \leq ka \leq 30 . It is believed that these computations are the most accurate made to date for these patterns. From these patterns it is seen that as the cylinder increases in size, for a given wavelength, the patterns sharpen, and in the limit of infinite cylinder radius the patterns approach that from a slot on an infinite plane.

Published in:

IRE Transactions on Antennas and Propagation  (Volume:9 ,  Issue: 5 )