Patents Assigned to RDI Electronics, Incorporated
  • System including spiral antenna and dipole or monopole antenna
    Patent number: 5457469
    Abstract: A broadband antenna system includes a frequency-dependent antenna and a frequency-independent antenna rotatably coupled to the frequency-dependent antenna. The antenna system may be arranged such that a dipole or monopole antenna is rotatably coupled to the inner or outer termination points of a spiral antenna, which is, in turn, movably coupled to a base. When the dipole antenna is coupled to the outer termination points of the spiral antenna, the elements of the spiral antenna may be extended.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: October 10, 1995
    Assignee: RDI Electronics, Incorporated
    Inventors: James A. Diamond, Maurice Diamond
  • Broadband antenna
    Patent number: D345982
    Type: Grant
    Filed: January 31, 1992
    Date of Patent: April 12, 1994
    Assignee: RDI Electronics, Incorporated
    Inventor: Ed Lucey