Polarimetric dual band radiating element for synthetic aperture radar
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United States of America Patent
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Sep 14, 1999
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N/A
app pub date -
Feb 27, 1997
filing date -
Feb 27, 1997
priority date (Note) -
Expired
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Abstract
A dual band, dual polarized antenna comprising an array of resonators in a plane for radiating at a first frequency, a ring resonator in a plane, the array of resonators being contained within a projection of the boundary of the ring resonator, the ring resonator for radiating at a second frequency which is lower than the first frequency, apparatus for exciting the array of resonators to cause them to radiate at the first frequency with dual polarizations simultaneously, and apparatus for exciting the ring resonator to cause it to radiate at the second frequency with dual polarizations simultaneously.
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