Cascaded surface acoustic wave devices with apodized interdigital transducers
AssigneeRf360 Europe GmbH
InventorMarc ESQUIUS MOROTE
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Abstract
Certain aspects of the present disclosure provide an electroacoustic device and methods for signal processing via the electroacoustic device. One example electroacoustic device generally includes a first surface acoustic wave (SAW) resonator comprising a first apodized interdigital transducer (IDT) disposed between a first busbar and a second busbar, and a second SAW resonator comprising a second apodized IDT disposed between the second busbar and a third busbar, wherein the second busbar is at an angle with respect to at least one of the first busbar or the third busbar.
Claims30
An electroacoustic device, comprising:
- a first surface acoustic wave (SAW) resonator comprising a first apodized interdigital transducer (IDT) disposed between a first busbar and a second busbar;
- and
- a second SAW resonator comprising a second apodized IDT disposed between the second busbar and a third busbar, wherein the second busbar is at an angle with respect to at least one of the first busbar or the third busbar.
An electroacoustic device, comprising:
- a first surface acoustic wave (SAW) resonator comprising a first interdigital transducer (IDT) disposed between a first busbar and a second busbar;
- and
- a second SAW resonator comprising a second IDT disposed between the second busbar and a third busbar, wherein the second busbar is at an angle with respect to at least one of the first busbar or the third busbar, wherein the first IDT comprises a first set of fingers extending from the second busbar, and wherein lengths of the first set of fingers decrease as each of the first set of fingers gets closer to a side of the first IDT.
A method for signal processing, comprising:
- receiving a signal at a first busbar;
- processing the signal via a first surface acoustic wave (SAW) resonator and a second SAW resonator, wherein:
- the first SAW resonator comprises a first apodized interdigital transducer (IDT) disposed between the first busbar and a second busbar;
- the second SAW resonator comprises a second apodized IDT disposed between the second busbar and a third busbar;
- and
- the second busbar is at an angle with respect to at least one of the first busbar or the third busbar;
- and
- providing the processed signal at the third busbar.
A method for signal processing, comprising:
- receiving a signal at a first busbar;
- processing the signal via a first surface acoustic wave (SAW) resonator and a second SAW resonator, wherein:
- the first SAW resonator comprises a first interdigital transducer (IDT) disposed between the first busbar and a second busbar;
- the second SAW resonator comprises a second IDT disposed between the second busbar and a third busbar;
- the second busbar is at an angle with respect to at least one of the first busbar or the third busbar;
- the first IDT comprises a first set of fingers extending from the second busbar;
- and
- lengths of the first set of fingers decrease as each of the first set of fingers gets closer to a side of the first IDT;
- and
- providing the processed signal at the third busbar.
Dependencies are inferred from the claim text.