Filter and multiplexer
AssigneeTaiyo Yuden Co., Ltd.
InventorJyunichi Hamasaki
Life of this patent
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Abstract
A filter includes a piezoelectric substrate, a multimode filter provided on the piezoelectric substrate, the multimode filter including input IDTs and output IDTs, the input IDTs being connected to an input terminal, the output IDTs being connected to an output terminal and arranged alternately with the input IDTs, and an inductor having a first end, which is connected to two or more and half or less IDTs of the input IDTs and the output IDTs, and a second end connected to a ground, the two or more and half or less IDTs including at least one input IDT of the input IDTs and at least one output IDT of the output IDTs.
Claims8
A filter comprising:
- a piezoelectric substrate;
- a multimode filter provided on the piezoelectric substrate, the multimode filter including input IDTs and output IDTs, the input IDTs being connected to an input terminal, the output IDTs being connected to an output terminal and arranged alternately with the input IDTs;
- and
- an inductor having a first end, which is connected to two or more and half or less IDTs of the input IDTs and the output IDTs, and a second end connected to a ground, the two or more and half or less IDTs including at least one input IDT of the input IDTs and at least one output IDT of the output IDTs.
Dependencies are inferred from the claim text.