Patents by Inventor Robert B. Bones

Robert B. Bones has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Enhanced bandwidth helical antenna
    Patent number: 5081469
    Abstract: An antenna comprises an electrically conductive helical member having a first end and a second opposite end, an elongate substrate supporting such helical member and comprised of electrically insulative material, a ground plane member disposed adjacent the helical member first end, and an impedance matching device adjacent the ground plane member. The impedance-matching device defines an inductive-capacitive circuit, inclusive of inductance constituted by a portion of the initial turn of the helical member and capacitance, one plate of which is constituted by a portion of the initial turn of the helical member. The ground plane member supports the impedance matching device for adjustable positioning circumferentially of the helical member, thereby to effect different inductances in such circuit, and for adjustable positioning radially of the helical member, thereby to effect different capacitances in the circuit.
    Type: Grant
    Filed: July 16, 1987
    Date of Patent: January 14, 1992
    Assignee: Sensormatic Electronics Corporation
    Inventor: Robert B. Bones