Patents Assigned to EM Systems, Inc.
  • Patent number: 4143380
    Abstract: An array of spiral antennas formed conformally about a cylindrical surface. The antennas share a common cavity or resonance chamber of annular cross section inside the cylinder.
    Type: Grant
    Filed: April 27, 1977
    Date of Patent: March 6, 1979
    Assignee: EM Systems, Inc.
    Inventor: Robert H. Kyle