DocumentCode :
1475392
Title :
A wideband array of non-uniformly spaced directional elements
Author :
Lim, J.C.
Volume :
35
Issue :
1
fYear :
1968
fDate :
1/1/1968 12:00:00 AM
Firstpage :
33
Lastpage :
39
Abstract :
This paper discusses the design of an economical wideband array suitable for low-frequency radio astronomy applications. The array consists of 32 non-uniformly spaced, uniformly excited, log periodic antennae designed to operate over a 2 : 1 frequency band. At the highest operating frequency, the array has a beam-width of approximately 1° and side-lobes at least 16¿5 dB below the main beam level. The theoretical limit to which the´side-lobes of an idealized array, having the same gain and length, can be suppressed is 17 dB.
Keywords :
antenna arrays; radioastronomy; receiving antennas;
fLanguage :
English
Journal_Title :
Radio and Electronic Engineer
Publisher :
iet
ISSN :
0033-7722
Type :
jour
DOI :
10.1049/ree.1968.0005
Filename :
5267391
Link To Document :
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