DocumentCode :
1222321
Title :
An Antenna for Controlling the Nonfading Range of Broadcasting Stations
Author :
Jeffers, Charles L.
Author_Institution :
Radio Station WOAI, San Antonio, Texas
Volume :
36
Issue :
11
fYear :
1948
Firstpage :
1426
Lastpage :
1431
Abstract :
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.
Keywords :
Antenna theory; Conductivity; Fading; Frequency; Linear antenna arrays; Narrowband; Noise level; Poles and towers; Radio broadcasting; Senior members;
fLanguage :
English
Journal_Title :
Proceedings of the IRE
Publisher :
ieee
ISSN :
0096-8390
Type :
jour
DOI :
10.1109/JRPROC.1948.232619
Filename :
1697577
Link To Document :
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