Transistor amplifier variable matching transformer apparatus
Patent 4500847 Issued on February 19, 1985. Estimated Expiration Date: 
June 14, 2002. 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.
June 14, 2002. 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 ReferencesMonolithic microwave amplifier having active impedance matching Patent #: 4390851 InventorAssigneeApplicationNo. 06/388291 filed on 06/14/1982US Classes:330/277Including field effect transistorExaminersPrimary: Mullins, James B.Assistant: Wan, G. Attorney, Agent or FirmInternational ClassesH03F 1/56 (20060101)H01P 5/04 (20060101) H03F 1/00 (20060101) AbstractA variable transformer is illustrated to be used primarily with high frequency transistors and other high frequency amplifying means to provide optimum impedance matching characteristics for individual transistors in a circuit rather than trying to design a given circuit to be universally applicable to a range of transistor characteristic values.Other References
Field of SearchIncluding field effect transistor | |
