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US 2024/0258986 A1Published application
Acoustic wave device
AssigneeSkyworks Solutions, Inc.
InventorsMichael David Hill, Hiroyuki Nakamura, Takanori Yasuda, Rei Goto
Life of this patent
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Abstract
An acoustic wave device comprising a piezoelectric substrate with an interdigital transducer electrode disposed on the piezoelectric substrate and configured to excite an acoustic wave having a wavelength of λ. The device includes a temperature compensating layer disposed on the interdigital transducer electrode and having a dielectric material including a titanium compound.
Claims20
An acoustic wave device comprising:
- a piezoelectric substrate;
- an interdigital transducer electrode disposed on the piezoelectric substrate and configured to excite an acoustic wave having a wavelength of λ;
- and
- a temperature compensating layer disposed on the interdigital transducer electrode and having a dielectric material including a titanium compound.
1 more element
A radio frequency module comprising:
- an acoustic wave filter including an acoustic wave device and configured to filter a radio frequency signal, the acoustic wave device having a piezoelectric substrate, an interdigital transducer electrode disposed on the piezoelectric substrate and configured to excite an acoustic wave having a wavelength of λ, and a temperature compensating layer disposed on the interdigital transducer electrode and having a dielectric material including a titanium compound;
- and
- a radio frequency circuit element coupled to the acoustic wave filter, the acoustic wave filter and the radio frequency circuit element being enclosed within a common module package.
A wireless communication device comprising:
- an acoustic wave filter including an acoustic wave device and configured to filter a radio frequency signal, the acoustic wave device having a piezoelectric substrate, an interdigital transducer electrode disposed on the piezoelectric substrate and configured to excite an acoustic wave having a wavelength of 2, and a temperature compensating layer disposed on the interdigital transducer electrode and having a dielectric material including a titanium compound;
- an antenna operatively coupled to the acoustic wave filter;
- a radio frequency amplifier operatively coupled to the acoustic wave filter and configured to amplify the radio frequency signal;
- and
- a transceiver in communication with the radio frequency amplifier.
2 more elements
Dependencies are inferred from the claim text.