NDLI: Toward Improved Control of Medium Wave Directional Arrays

Content Provider	IEEE Xplore Digital Library
Author	Jubera, D.
Copyright Year	1963
Abstract	Relatively few types of variable power division circuits have been used in medium wave directional antenna feed systems, most of which suffer phase variation as the power division is adjusted. This paper discusses a class of circuits which can be used to implement a phase invariant adjustable power divider. Also discussed are variable phase shifters which have limited effect on power distribution. These features can simplify the original tuning and possible periodic maintenance. A computer analysis of the probable performance of such devices is presented. The associated problem of system analysis is discussed, particularly the inclusion of the effects of the antenna element coupling. To this end a lumped passive element model for a generalized linear reciprocal N port is presented.
Sponsorship	IEEE Broadcast Technology Society
Starting Page	71
Ending Page	76
Page Count	6
File Size	800980
File Format	PDF
ISSN	00189316
Volume Number	BC-27
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1981-12-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Impedance Circuits Broadcasting Directional antennas Power dividers Phase shifters Antenna arrays Antenna feeds Loaded antennas Computer networks
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Media Technology

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