DocumentCode
1039290
Title
A nonresonant endfire array for VHF and UHF
Author
Cumming, W.A.
Author_Institution
National Research Council, Ottawa, Canada
Volume
3
Issue
2
fYear
1955
fDate
4/1/1955 12:00:00 AM
Firstpage
52
Lastpage
58
Abstract
A new type of endfire array is described which has moderate bandwidth in the vhf and uhf ranges. Two types of arrays are dealt with; one, an unbalanced type fed with a coxial line, which was studied primarily to test the theory of operation of the antenna; the other, a balanced type fed with unshielded twin-line, which was developed as a receiving antenna for vhf television. This latter antenna has a gain varying from 6 db to 10 db above a dipole over a 50 per cent frequency range, and produces a voltage standing wave ratio of not greater than 2.5 to 1 on 300-ohm twin lead.
Keywords
Endfire arrays; Helical antennas; TV receiver antennas; Traveling wave antennas; UHF antennas; VHF antennas; Antenna arrays; Antenna theory; Bandwidth; Dipole antennas; Frequency; Microwave antenna arrays; Receiving antennas; TV; Testing; Voltage;
fLanguage
English
Journal_Title
Antennas and Propagation, IRE Transactions on
Publisher
ieee
ISSN
0096-1973
Type
jour
DOI
10.1109/TAP.1955.1144291
Filename
1144291
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