US 9,812,779 B2
Modulation patterns for surface scattering antennas
Pai-Yen Chen, Houston, TX (US); Tom Driscoll, San Diego, CA (US); Siamak Ebadi, Redmond, WA (US); John Desmond Hunt, Seattle, WA (US); Nathan Ingle Landy, Mercer Island, WA (US); Melroy Machado, Seattle, WA (US); Milton Perque, Jr., Seattle, WA (US); David R. Smith, Durham, NC (US); and Yaroslav A. Urzhumov, Bellevue, WA (US)
Assigned to The Invention Science Fund I LLC
Filed by Searete LLC, Bellevue, WA (US)
Filed on Jan. 29, 2016, as Appl. No. 15/10,165.
Application 15/010,165 is a continuation of application No. 14/549,928, filed on Nov. 21, 2014.
Application 14/549,928 is a continuation of application No. 14/510,947, filed on Oct. 9, 2014, abandoned.
Prior Publication US 2016/0149310 A1, May 26, 2016
Int. Cl. H01Q 11/02 (2006.01); H01Q 3/44 (2006.01); H01Q 13/20 (2006.01)
CPC H01Q 3/44 (2013.01) [H01Q 11/02 (2013.01); H01Q 13/20 (2013.01)] 39 Claims
OG exemplary drawing
1. A method, comprising:
discretizing a hologram function for a surface scattering antenna that defines an aperture, where the discretizing includes
identifying a discrete plurality of locations on the aperture for a discrete plurality of scattering elements of the surface scattering antenna and
identifying a discrete set of states for each of the scattering elements corresponding to a discrete set of function values at each of the locations of the scattering elements; and
identifying an antenna configuration that reduces artifacts attributable to the discretizing,
wherein the identifying of the antenna configuration includes altering a Fourier spectrum of the discretized hologram function.