Patents by Inventor Mark Francis Smith

Mark Francis Smith 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).

  • Radial power divider/combiner using waveguide impedance transformers
    Patent number: 7482894
    Abstract: A radial power divider-combiner is disclosed. Such a radial divider-combiner may include a plurality of waveguides, each of which extends between a central monopole antenna and a respective peripheral monopole antenna. Such a waveguide may have a central portion with a height-to-width ratio of two, and a peripheral portion having an aspect ratio of one. To improve impedance-matching, a transformer portion may be disposed between the central portion and the peripheral portion. Such a transformer portion may have any number of sections, from one to infinity, with each section having a respective height between that of the central portion and that of the peripheral portion. In the extreme case, where the number of “sections” is infinite, the height of the transformer portion may vary linearly from that of the central portion and that of the peripheral portion.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: January 27, 2009
    Assignee: L-3 Communications Corporation
    Inventors: You-Sun Wu, Mark Francis Smith, James Norman Remer
  • Radial power divider/combiner
    Patent number: 7312673
    Abstract: A radial power divider-combiner is disclosed. The divider-combiner includes a divider and a combiner. An input signal is provided to a transmission antenna that radiates the input signal inside the divider. Within the divider, the input signal is divided into a plurality of individual signals. The individual signals are received by receiving antennas and provided to respective amplifiers. The amplifiers amplify the respective individual signals by a desired amplification factor. The amplified individual signals are provided to a plurality of transmitting antennas within the combiner. Inside the combiner, the amplified individual signals are combined to form an output signal that is received by a receiving antenna in the combiner.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: December 25, 2007
    Assignee: L-3 Communications Corporation
    Inventors: You-Sun Wu, Mark Francis Smith, James Norman Remer
  • Radial power divider/combiner
    Patent number: 7113056
    Abstract: A radial power divider-combiner is disclosed. The divider-combiner includes a divider and a combiner. An input signal is provided to a transmission antenna that radiates the input signal inside the divider. Within the divider, the input signal is divided into a plurality of individual signals. The individual signals are received by receiving antennas and provided to respective amplifiers. The amplifiers amplify the respective individual signals by a desired amplification factor. The amplified individual signals are provided to a plurality of transmitting antennas within the combiner. Inside the combiner, the amplified individual signals are combined to form an output signal that is received by a receiving antenna in the combiner.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: September 26, 2006
    Assignee: L-3 Communications Corporation
    Inventors: You-Sun Wu, Mark Francis Smith, James Norman Remer
  • Radial power divider/combiner
    Patent number: 6982613
    Abstract: A radial power divider-combiner is disclosed. The divider-combiner includes a divider and a combiner. An input signal is provided to a transmission antenna that radiates the input signal inside the divider. Within the divider, the input signal is divided into a plurality of individual signals. The individual signals are received by receiving antennas and provided to respective amplifiers. The amplifiers amplify the respective individual signals by a desired amplification factor. The amplified individual signals are provided to a plurality of transmitting antennas within the combiner. Inside the combiner, the amplified individual signals are combined to form an output signal that is received by a receiving antenna in the combiner.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: January 3, 2006
    Assignee: L-3 Communications Corporation
    Inventors: You-Sun Wu, Mark Francis Smith, James Norman Remer
  • Bus bar assembly
    Patent number: 6664478
    Abstract: Support members for a busbar assembly are provided. The support members include a body formed of an electrically insulative material and at least one receiving formation in the body and configured to receive an electrical conductor. A strengthening insert is located substantially entirely within the body to electrically insulate the strengthening insert from the electrical conductor. The strengthening insert is a material different from the electrically insulative material of the body. Support structures and busbar assemblies and methods of making the support members are also provided.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: December 16, 2003
    Assignee: Tyco Electronics UK Ltd.
    Inventors: David John Mohan, Mark Francis Smith
  • Bus bar assembly
    Publication number: 20030000733
    Abstract: Busbar assembly having a support member (15) with internal strengthening means (22) and/or spacers (24) with shoulders (33) adapted to prevent over-penetration of the spacers into receiving apertures (31) of the support member (15) and/or resilient rings (32) arranged for compression between support members (15) and spacers (24).
    Type: Application
    Filed: August 6, 2002
    Publication date: January 2, 2003
    Inventors: David John Mohan, Mark Francis Smith