Acoustic resonator filter system
AssigneeNorthrop Grumman Systems Corporation
InventorMatthew S. Torpey
Life of this patent
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Abstract
One example includes an acoustic resonator filter system. The system includes a filter element arranged between a low-voltage rail and a filter-path node through which an RF input signal propagates to provide a filtered RF output signal. The filter element includes an acoustic resonator and a capacitive network arranged in parallel with the acoustic resonator.
Claims17
An acoustic resonator filter system comprising a filter element arranged between a low-voltage rail and a filter-path node through which an RF input signal propagates to provide a filtered RF output signal, the filter element comprising:
- an acoustic resonator;
- and
- a capacitive network arranged in parallel with the acoustic resonator, wherein the capacitive network comprises a first capacitor arranged in parallel with the acoustic resonator and a second capacitor arranged in parallel with the acoustic resonator and the first capacitor.
An acoustic resonator filter system comprising a plurality of filter elements, each of the filter elements being arranged between a low-voltage rail and one of a plurality of filter-path nodes through which an RF input signal propagates to provide a filtered RF output signal, such that the acoustic resonator filter system is arranged as a resonator tank network, each of the filter elements comprising:
- an acoustic resonator;
- and
- a capacitive network arranged in parallel with the acoustic resonator, wherein the capacitive network comprises a first capacitor arranged in parallel with the acoustic resonator and a second capacitor arranged in parallel with the acoustic resonator and the first capacitor.
An integrated circuit (IC) comprising an acoustic resonator filter system, the acoustic resonator filter system comprising a plurality of filter elements, each of the filter elements being arranged between a low-voltage rail and one of a plurality of filter-path nodes through which an RF input signal propagates to provide a filtered RF output signal, such that the acoustic resonator filter system is arranged as a resonator tank network, each of the filter elements comprising:
- an acoustic resonator;
- and
- a capacitive network arranged in parallel with the acoustic resonator, wherein the capacitive network comprises a first capacitor arranged in parallel with the acoustic resonator and a second capacitor arranged in parallel with the acoustic resonator and the first capacitor.
Dependencies are inferred from the claim text.