DocumentCode
1094641
Title
The Mutual Impedance between Adjacent Antennas
Author
Englund, Carl R. ; Crawford, Arthur B.
Author_Institution
Bell Telephone Laboratories, Inc., New York City
Volume
17
Issue
8
fYear
1929
Firstpage
1275
Lastpage
1295
Abstract
The simple theory for the computation of reflecting or multibranch antenna systems is sketched. If the points at which observations of electrical quantities are to be made are definitely specified, a knowledge of the self and mutual impedances (properly defined) between antennas is sufficient to make the computations determinate. Of the circuit constants, the most useful and accessible is the antenna current ratio 2 i( 4-( 2rd/ X) ) K1, = II = Koe and in the work here reported ϕ has been measured in the range 0.33λ to 1λ. Experiment has shown that in this range ϕ is that theoretically calculable for a Hertzian doublet. Actually this range is equivalent to λ/3 to ∞. The discussion of experimental procedure is purposely thorough.
Keywords
Antenna measurements; Antenna theory; Circuit theory; Cities and towns; Current measurement; Impedance measurement; Laboratories; Reflector antennas; Telephony; Voltage;
fLanguage
English
Journal_Title
Radio Engineers, Proceedings of the Institute of
Publisher
ieee
ISSN
0731-5996
Type
jour
DOI
10.1109/JRPROC.1929.221820
Filename
1670407
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