NDLI: Relative tower currents and fields in an AM directional array

Content Provider	IEEE Xplore Digital Library
Author	Hatfield, J.B.
Copyright Year	1963
Abstract	With the help of method-of-moments techniques, the antenna monitor parameters that give the correct pattern can be calculated from the field parameters. The base voltages can be computed from the linear relationship between the relative fields and the base voltages. The computed voltages can then be used as sources for MININEC III. The base currents computed by MININEC III for those base voltages are used to determine the antenna monitor parameters that result in the correct directional antenna (DA) pattern. Calculating the antenna monitor parameters that give the correct DA pattern means that trial and error field adjustment is not necessary in those situations where reradiating objects are not present. Thin reradiating objects, such as AC power transmission towers, can be included in the computation when they can be accurately located and described. Detuning impedances from the floated towers to ground are easily calculated from the output of the MININEC III program. Examples of the use of this technique are presented.<>
Sponsorship	IEEE Broadcast Technology Society
Starting Page	176
Ending Page	184
Page Count	9
File Size	776175
File Format	PDF
ISSN	00189316
Volume Number	35
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1989-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Poles and towers Phased arrays Antenna arrays Directive antennas Voltage Directional antennas FCC Shape Condition monitoring Current distribution
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Media Technology

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