Patents Assigned to C-Com Satellite Systems Inc.
  • Patent number: 10211527
    Abstract: A method and apparatus for calibrating a phased antenna array. The antennas are excited using several excitation patterns, each changing the state of the antennas by a specific amplitude and phase. The phases correspond to phase values of a basis function of a two-dimensional discrete Fourier transform, and each excitation pattern corresponds to a different basis function. Using a calibration antenna, e.g. at a fixed point inside the system, the phase and amplitude of the radiated field due to each excitation patterns is measured sequentially. From this data, the phase and amplitude of the radiated field for each element at the location of the calibration antenna is obtained and used to adjust the phase shifters and amplifiers. For calibrated systems, the spectral domain representation of radiated fields can be sparse. Taking advantage of this property and a spectrally compressed sensing technique, recalibration can involve fewer measurements to mitigate service interruptions.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: February 19, 2019
    Assignee: C-COM Satellite Systems Inc.
    Inventors: Safieddin Safavi-Naeini, Mohammad Haghtalab
  • Patent number: D696649
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: December 31, 2013
    Assignee: C-Com Satellite Systems Inc.
    Inventors: Matthew Siemers, Ewan Smith
  • Patent number: D696650
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: December 31, 2013
    Assignee: C-Com Satellite Systems Inc.
    Inventors: Matthew Siemers, Ewan Smith
  • Patent number: D707208
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: June 17, 2014
    Assignee: C-COM Satellite Systems Inc.
    Inventors: Derek Ryan Kirkland, Jerome Le Corvec, Etienne Y. Poisson