SURFACE SCATTERING ANTENNAS
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Accused Products
Abstract
Surface scattering antennas provide adjustable radiation fields by adjustably coupling scattering elements along a wave-propagating structure. In some approaches, the scattering elements are complementary metamaterial elements. In some approaches, the scattering elements are made adjustable by disposing an electrically adjustable material, such as a liquid crystal, in proximity to the scattering elements. Methods and systems provide control and adjustment of surface scattering antennas for various applications.
80 Citations
105 Claims
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1-41. -41. (canceled)
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42. A method, comprising:
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selecting a first antenna radiation pattern; and for an antenna that includes a waveguide supporting a guided wave mode and a plurality of subwavelength radiative elements coupled to the guided wave mode and adjustable responsive to one or more control inputs, determining first values of the one or more control inputs corresponding to the first selected antenna radiation pattern. - View Dependent Claims (43, 44, 45, 46, 47, 49, 50, 51, 54, 55, 56, 57, 58, 59, 61, 62, 63, 64, 65, 68)
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69. A method, comprising:
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identifying a first target for a first antenna, the first antenna including a first waveguide supporting a first guided wave mode and a first plurality of subwavelength radiative elements coupled to the first guided wave mode and adjustable responsive to one or more first control inputs and having a first adjustable radiation pattern responsive to the one or more first control inputs; and repeatedly adjusting the one or more first control inputs to provide a substantially continuous variation of the first adjustable radiation pattern responsive to a first relative motion between the first target and the first antenna. - View Dependent Claims (70, 71, 72, 73, 74, 75, 76, 78)
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88. A system, comprising:
antenna control circuitry configured to provide one or more control inputs to an antenna that includes a waveguide supporting a guided wave mode and a plurality of subwavelength radiative elements coupled to the guided wave mode and adjustable responsive to the one or more control inputs. - View Dependent Claims (89, 90, 91, 93, 94, 98, 99, 100, 101, 102, 103, 104, 105)
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Specification