A dual doubly curved reflector antenna having good circular polarization characteristics

A new type of shaped-beam radar antenna having good polarization characteristics is described. This antenna is composed of a dual doubly curved reflector system and a feed horn with good axial ratio, such as a dual-mode horn. The rotationally symmetrical beam of the feed horn can be converted into a...

Full description

Saved in:
Bibliographic Details
Published in:I.R.E. transactions on antennas and propagation 1978-05, Vol.26 (3), p.455-458
Main Authors: Mizusawa, M., Urasaki, S., Betsudan, S.-I., Limori, M.
Format: Article
Language:English
Subjects:
Antenna feeds
Apertures
Clutter
Degradation
Directive antennas
Horn antennas
Polarization
Radar antennas
Reflector antennas
Solids
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A new type of shaped-beam radar antenna having good polarization characteristics is described. This antenna is composed of a dual doubly curved reflector system and a feed horn with good axial ratio, such as a dual-mode horn. The rotationally symmetrical beam of the feed horn can be converted into a shaped beam by the reflector system without degradation of the axial ratio. The design of this type antenna is discussed and the experimental results of a model antenna with a cosecant squared beam are shown. Integrated cancellation ratio of the model was 22 dB.
ISSN:0018-926X
0096-1973
1558-2221
DOI:10.1109/TAP.1978.1141869