Linearly polarized broadband backfire helical antenna

The invention discloses a linearly polarized broadband backfire helical antenna which comprises a primary radiator (1), a feed assembly (2) and a reflection cavity assembly (3), wherein the primary radiator (1) is arranged at a central position of the reflection cavity assembly and formed by symmetr...

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Bibliographic Details
Main Authors ZHU PEIYUN, LING MINHE
Format Patent
LanguageChinese
English
Published 11.05.2011
Subjects
ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRICITY
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Summary:The invention discloses a linearly polarized broadband backfire helical antenna which comprises a primary radiator (1), a feed assembly (2) and a reflection cavity assembly (3), wherein the primary radiator (1) is arranged at a central position of the reflection cavity assembly and formed by symmetrically winding a first metal helical arm (11) and a second metal helical arm (12) on a medium supporting structure (13); the feed assembly (2) is in a coaxial structure and is formed by sequentially connecting a first binding post (21), a second binding post (22), a transform feed medium (23), an inner feed conductor (24), an outer feed conductor (25) and an electric connector (26); and the reflection cavity assembly (3) comprises a forming reflection cavity (31) and a side ring (32). In the invention, a form of bifilar helical arm reverse winding is adopted, thus the broadband characteristic of backfire helix is reserved, meanwhile, a linearly polarized working mode is realized, and thereby the application range o
Bibliography:Application Number: CN20091210148