Title :
Some Comments on Broadcast Antennas
Author :
Harmon, Ralph N.
Author_Institution :
Westinghouse Electric and Manufacturing Company, Chicopee Falls, Mass.
Abstract :
A constant phase and current antenna is suggested as having more desirable characteristics than sinusoidal distribution. It is shown that the maximum nonfading range is a function of the antenna height, frequency, and ground conductivity. A modified antenna system is suggested which combines a high angle suppressor with a vertical constant phase and current antenna. It is shown that the modified system cancels the high angle lobe of radiation and increases the nonfading range.
Keywords :
Antenna theory; Broadcasting; Cable insulation; Conductivity; Current distribution; Earth; Frequency; Manufacturing; Receiving antennas; Testing;
Journal_Title :
Radio Engineers, Proceedings of the Institute of
DOI :
10.1109/JRPROC.1936.227352