Patents by Inventor Sean Patrick McAlister

Sean Patrick McAlister 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).

  • High isolation micro mechanical switch
    Patent number: 6466102
    Abstract: A micro-mechanical microwave switch has a signal line formed on a substrate and defining a gap forming an open circuit in the off-state of the switch. A dielectric support, which may be a cantilevered arm, carries a contact to bridge the gap and close the switch in the on-state. At least one shield electrode in the vicinity of the contact creates reduces the coupling across the gap by creating a shunt capacitance or redistributing the electromagnetic field.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: October 15, 2002
    Assignee: National Research Council of Canada
    Inventors: Peter Grant, Mike W. Denhoff, Sean Patrick McAlister