Patents by Inventor Tim LaRocca

Tim LaRocca 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).

  • Triple balanced, interleaved mixer
    Patent number: 9385657
    Abstract: A triple-balanced mixer is disclosed. The mixer features a complementary metal oxide semiconductor (CMOS) mmW (millimeter wave) integrated circuit and adds an inverted double balanced mixer to a double-balanced Gilbert cell mixer to provide a triple-balanced mixer. Another term for this type of mixer is doubly double balanced. Pairs of field effect transistor (FET) devices are interleaved into a single device. The inverted mixer provides an inverted LO feedthrough signal equal in amplitude to the LO feedthrough from the first mixer. The inverted LO feedthrough is used to cancel the LO feedthrough, or leakage, of the first mixer at the RF port.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: July 5, 2016
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Naveen Daftari, Tim LaRocca