HORN ANTENNA AND PRIMARY RADIATOR

PROBLEM TO BE SOLVED: To make a horn antenna and a primary radiator small in size and light in weight without deteriorating performance. SOLUTION: A conical horn part 11 is provided at the point of a circular waveguide part 11a, and a patch element 16 for a circularly polarized wave formed on an ant...

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Bibliographic Details
Main Author OSHIMA MOTOKI
Format Patent
LanguageEnglish
Published 22.06.2001
Edition7
Subjects
ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRICITY
RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
WAVEGUIDES
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Summary:PROBLEM TO BE SOLVED: To make a horn antenna and a primary radiator small in size and light in weight without deteriorating performance. SOLUTION: A conical horn part 11 is provided at the point of a circular waveguide part 11a, and a patch element 16 for a circularly polarized wave formed on an antenna substrate 15 is arranged inside the part 11a. The part 11a is terminated with a prescribed distance separated from the rear face of the element 16. Thus, it is possible to make the depth of a radiator case 10 short and to make the primary radiator small in size and light in weight. It is further possible to make the horn antenna and the primary radiator a wideband because the element 16 is terminated through an air layer.
Bibliography:Application Number: JP19990352817