Patents by Inventor Ronghui Feng

Ronghui Feng 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).

  • Antenna assembly and communication device utilizing such antenna assembly
    Patent number: 6281851
    Abstract: A communications device with a quarter wave antenna (11) is provided with a quarter wavelength choke that is formed by a conductive coating (14) applied to the inner wall of the housing (12) to the communications device. The conductive coating (14) is electrically coupled as a ground to antenna (11) via the ground to a printed circuit board (13) and a conductive surface to a dividing wall (18) acting as a suspended base by which to support the circuit board (13). The conductive coating (14) is extended from the antenna base over a length equal to a quarter wavelength.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: August 28, 2001
    Assignee: Motorola, Inc.
    Inventors: Yew Siow Tay, Huan Fong Tan, Ronghui Feng