Pulse radar and components therefor
Patent 5184136 Issued on February 2, 1993. Estimated Expiration Date: 
February 2, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 2, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesIntegrated circuit planar high frequency mixer Millimeter wave monopulse comparator circuit Quasi-optical balanced biconical mixer Millimeter-wave quasi-optical planar balanced mixer Patent #: 4491977 InventorAssigneeApplicationNo. 552548 filed on 10/31/1983US Classes:342/153, With particular antenna or waveguide342/62, Missile or spacecraft guidance342/149, Monopulse455/326, With balanced mixer455/330With nonlinear impedance (e.g., diode)ExaminersPrimary: Barron, Gilberto Jr.Attorney, Agent or FirmInternational ClassesG01S 013/44H04B 001/26 AbstractA pulse radar for operation at 94 GHz and higher frequencies is shown to include an antenna, a diplexer and first detector that are each optically fed so that radio frequency signals may be, when transmitting, passed through the diplexer to the antenna and, when receiving, from the antenna through the diplexer to the first detector.Other References
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