Stepped-reflector antenna for satellite communication payloads
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United States of America Patent
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Jun 15, 2010
Issued Date -
N/A
app pub date -
Mar 2, 2006
filing date -
Jun 27, 2005
priority date (Note) -
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Abstract
A stepped reflector for being illuminated by at least one multiple-band feed is provided. The reflector includes a central region and a first annular region with an annular width of w. The first annular region is axially stepped a height h above the central region, where h is approximately equal tois an angle formed between an axis of the at least one feed and a line connecting a phase center of the at least one feed and an inner edge of the at least one annular region.The central region and the annular region of the reflector may be parabolically curved or may alternately be shaped. The reflector may be fed by one or more multiple-band horn antennas.
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