An efficient rectangular hat feed for linear polarization and low sidelobes

An efficient rectangular hat feed for linear polarization and low sidelobes

A cheap alternative to the swan-neck feed, which can obtain low sidelobes even without an absorbing cylinder is presented. This feed is called the rectangular hat feed. The ideas of soft and hard surfaces have been used to optimize the performance of this linearly polarized feed. It can give low sid...

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Bibliographische Detailangaben
Hauptverfasser: Moldsvor, A., Raberger, M., Kildal, P.-S.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Antenna feeds
Apertures
Boundary conditions
Conductors
Manufacturing
Narrowband
Polarization
Radio link
Rectangular waveguides
Reflector antennas
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Beschreibung
Zusammenfassung:A cheap alternative to the swan-neck feed, which can obtain low sidelobes even without an absorbing cylinder is presented. This feed is called the rectangular hat feed. The ideas of soft and hard surfaces have been used to optimize the performance of this linearly polarized feed. It can give low sidelobes and has broader bandwidth than the circular hat feed.< >
DOI:10.1109/APS.1993.385352