Patents by Inventor Christopher Gregorean

Christopher Gregorean 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).

  • Microstrip phase shifter having phase shift filter device
    Patent number: 6275120
    Abstract: A broad band phase shifter of the present invention can be used in a microstrip conductor and includes a power divider disposed along a microstrip conductor. The power divider has first and second outputs. A reference transmission line is disposed on the microstrip conductor and connected to the first output of the power divider. A phase shift filter device is disposed on the microstrip conductor and connected to the second output of the power divider. The phase shift filter device comprises a 180 degree phase shift coupled line structure formed of a first substantially linear 90 degree phase shift parallel line section, and a second substantially linear 90 degree phase shift parallel line section coupled to the first parallel. line section. The first and second 90 degree phase shift parallel line sections have parallel lines that are spaced about five mils apart. The first and second 90 degree phase shift parallel line sections also have parallel lines that are offset to each other.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: August 14, 2001
    Assignee: Harris Corporation
    Inventors: Roy Vaninetti, Gregory Marquardt, Christopher Gregorean
  • Microstrip phase shifter including a power divider and a coupled line filter
    Patent number: 6043722
    Abstract: A broad band phase shifter of the present invention can be used in a microstrip conductor and includes a power divider disposed along a microstrip conductor. The power divider has first and second outputs. A reference transmission line is disposed on the microstrip conductor and connected to the first output of the power divider. A phase shift filter device is disposed on the microstrip conductor and connected to the second output of the power divider. The phase shift filter device comprises a 180 degree phase shift coupled line structure formed of a first substantially linear 90 degree phase shift parallel line section, and a second substantially linear 90 degree phase shift parallel line section coupled to the first parallel line section. The first and second 90 degree phase shift parallel line sections have parallel lines that are spaced about five mils apart. The first and second 90 degree phase shift parallel line sections also have parallel lines that are offset to each other.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: March 28, 2000
    Assignee: Harris Corporation
    Inventors: Roy Vaninetti, Gregory Marquardt, Christopher Gregorean