Patents Assigned to Tri-Band Technologies, Inc.
  • Patent number: 5311201
    Abstract: A multi-band antenna includes conductive tubular section that provides the major physical support for the antenna and functions as the major element of the antenna on the long wavelength band and a half wavelength center feed dipole with a choke located at the end of the tubular section that serves and the short wavelength antenna. The half wavelength dipole includes a coaxial cable disposed within the tubular section extending a quarter wavelength of the short wavelength band beyond the tubular section. A solid conductor of a quarter wavelength forms an extension of the central conductor of the coaxial cable. A rigid dielectric cylinder accommodates the extension of the coaxial cable and the solid conductor providing physical support and rigidity. A choke includes a short between the outer conductive shield of the coaxial cable and the tubular section is located one quarter wavelength from the remote end of the tubular section.
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: May 10, 1994
    Assignee: Tri-Band Technologies, Inc.
    Inventors: Michael R. Lillie, Valdis V. Liepa