FILTER DEVICE
First Claim
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1. A filter device comprising:
- an antenna terminal to be connected to an antenna;
a plurality of first inductors connected between the antenna terminal and a ground potential and defined by a plurality of parallel divided inductors; and
a plurality of band-pass filters commonly connected to the antenna terminal and including respective second inductors;
whereinthe plurality of first inductors and the second inductors are electromagnetically coupled to each other mainly in a one-to-one relationship.
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Abstract
A filter device includes an antenna terminal to be connected to an antenna, first inductors connected between the antenna terminal and a ground potential and defined by parallel divided inductors, and first and second acoustic wave filters commonly connected to the antenna terminal and including second inductors, respectively. The first inductors and the second inductors are electromagnetically coupled to each other mainly in a one-to-one relationship.
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Citations
15 Claims
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1. A filter device comprising:
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an antenna terminal to be connected to an antenna; a plurality of first inductors connected between the antenna terminal and a ground potential and defined by a plurality of parallel divided inductors; and a plurality of band-pass filters commonly connected to the antenna terminal and including respective second inductors;
whereinthe plurality of first inductors and the second inductors are electromagnetically coupled to each other mainly in a one-to-one relationship. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification