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US 12,113,513 B2Granted
Filter and multi-filter
AssigneeKYOCERA Corporation
InventorTomonori Urata
Life of this patent
Estimating the term…
Abstract
A filter includes a ladder filter portion formed on a first piezoelectric substrate; and a multi-mode filter portion connected to the ladder filter portion and formed on a second piezoelectric substrate different from the first piezoelectric substrate. The ladder filter portion and the multi-mode filter portion constitute a single passband.
Claims20
A filter comprising:
- a ladder filter portion formed on a first piezoelectric substrate;
- and
- a multi-mode filter portion connected to the ladder filter portion and formed on a second piezoelectric substrate different from the first piezoelectric substrate,
- wherein the ladder filter portion and the multi-mode filter portion constitute a single passband, and
- wherein an electrode thickness of the ladder filter portion is different from an electrode thickness of the multi-mode filter portion.
2 more elements
A filter comprising:
- a ladder filter portion formed on a first piezoelectric substrate;
- and
- a multi-mode filter portion connected to the ladder filter portion and formed on a second piezoelectric substrate different from the first piezoelectric substrate,
- wherein the ladder filter portion and the multi-mode filter portion constitute a single passband, and
- wherein a cut-angle of the first piezoelectric substrate is different from a cut-angle of the second piezoelectric substrate.
2 more elements
A filter comprising:
- a ladder filter portion formed on a first piezoelectric substrate;
- and
- a multi-mode filter portion connected to the ladder filter portion and formed on a second piezoelectric substrate different from the first piezoelectric substrate,
- wherein the ladder filter portion and the multi-mode filter portion constitute a single passband, and
- wherein a thickness of the first piezoelectric substrate is different from a thickness of the second piezoelectric substrate.
2 more elements
Dependencies are inferred from the claim text.