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An Antenna for Controlling the Nonfading Range of Broadcasting Stations

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1 Author(s)
Jeffers, Charles L. ; Radio Station WOAI, San Antonio, Texas

A new type of broadcast antenna is described which radiates very little energy over a wide, high angle. The angle above which minimum energy is radiated can be varied electrically from 40° to 60°, thus permitting the fading wall to be adjusted for maximum primary service. The electrical height of the antenna is dependent upon the specific vertical pattern desired but is approximately 300°. The results of experiments with small model antennas are in good agreement with theory.

Published in:

Proceedings of the IRE  (Volume:36 ,  Issue: 11 )