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 plurality of filter blocks. Each of the filter blocks can include a plurality of tunable filter elements. Each of the tunable filter elements can include an acoustic resonator. The system also includes a switching network that receives a radio frequency (RF) input signal and provides a filtered RF output signal. The switching network can be configured to selectively switch at least one of the filter blocks in a signal path of the RF input signal to provide the RF output signal.
Claims17
An acoustic resonator filter system comprising:
- a plurality of filter blocks, each of the filter blocks comprising a plurality of tunable filter elements, each of the tunable filter elements comprising an acoustic resonator, a fixed capacitance capacitor, and a varactor arranged in parallel;
- and
- a switching network that receives a radio frequency (RF) input signal and provides a filtered RF output signal, the switching network being configured to selectively switch at least one of the filter blocks in a signal path of the RF input signal to provide the RF output signal.
A method for filtering a radio frequency (RF) input signal via an acoustic resonator filter system, the method comprising:
- providing the RF input signal to a switching network of the acoustic resonator filter system;
- providing a plurality of switching signals to the switching network to selectively switch at least one of a plurality of filter blocks in a signal path of the RF input signal, each of the filter blocks comprising a plurality of tunable filter elements, each of the tunable filter elements comprising an acoustic resonator, a fixed capacitance capacitor, and a varactor arranged in parallel;
- and
- providing an RF output signal at an output of the switching network, the RF output signal corresponding to the RF input signal being provided through the selectively switched filter blocks in the signal path.
An integrated circuit (IC) comprising an acoustic resonator filter system, the acoustic resonator filter system further comprising:
- a plurality of filter blocks, each of the filter blocks comprising a plurality of tunable filter elements, each of the tunable filter elements comprising an acoustic resonator, a fixed capacitance capacitor, and a varactor arranged in parallel;
- and
- a switching network that receives a radio frequency (RF) input signal and provides a filtered RF output signal, the switching network being configured to selectively switch at least one of the filter blocks in a signal path of the RF input signal to provide the RF output signal.
Dependencies are inferred from the claim text.