HIGH-RESOLUTION RADAR MAP FOR MULTI-FUNCTION PHASED ARRAY RADAR
First Claim
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1. A polarimetric radar system comprising:
- an array comprising a plurality of antenna elements, a portion of the antenna elements defining a first sub-array operative to transmit a radar signal component having a first polarization, and a remaining portion of the antenna elements defining a second sub-array, interleaved with the antenna elements of the first sub-array, and operative to transmit a radar signal component having a second polarization, anda control module for selectively controlling of each of the antenna elements of the first and second sub-arrays.
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Abstract
A method of operating a multi-function phased array radar system having an antenna array populated with dual-pol antenna elements is described. The method includes selectively controlling individual dipoles of each dual-pol antenna element in order to operate the array in either a polarimetric mode with improved cross-pol isolation, or in a multi-mission mode, wherein a plurality of singularly-polarized signals are produced.
27 Citations
17 Claims
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1. A polarimetric radar system comprising:
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an array comprising a plurality of antenna elements, a portion of the antenna elements defining a first sub-array operative to transmit a radar signal component having a first polarization, and a remaining portion of the antenna elements defining a second sub-array, interleaved with the antenna elements of the first sub-array, and operative to transmit a radar signal component having a second polarization, and a control module for selectively controlling of each of the antenna elements of the first and second sub-arrays. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A multi-function phased array radar system comprising:
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an antenna array comprising a plurality of dual-polarized antenna elements, each of the dual-polarized antenna elements comprising a first emitter and a second emitter arranged generally orthogonally with respect to one another, and a controller in selective communication with the first emitter and the second emitter of each antenna element such that for each antenna element, the first emitter can be excited independently of the second emitter, and the second emitter can be excited independently of the first emitter. - View Dependent Claims (11, 12)
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13. A method of operating a radar array antenna, the method comprising the steps of:
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providing a radar array comprising a plurality of dual-polarized antenna elements, each antenna element comprising a first radiating element and second radiating element, generating a first radar signal component from a first sub-array comprising a portion of the dual-polarized antenna elements by selectively exciting the first radiating elements, and simultaneously generating a second radar signal component with the first radar signal component from a second sub-array comprising a remaining portion of the dual-polarized antenna elements by selectively exciting the second radiating elements, wherein only one of the first and second radiating elements of a given antenna element is excited at a given time. - View Dependent Claims (14, 15, 16, 17)
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Specification