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US 12,362,718 B2Granted
Multilayer band-pass filter
AssigneeTDK Corporation
InventorsTakeshi Oohashi, Hideya Matsubara
Life of this patent
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Abstract
A band-pass filter includes a first inductor and a second inductor electromagnetically coupled to each other, a first ground terminal electrically connected to the first inductor, a second ground terminal electrically connected to the second inductor, and a stack for integrating the first inductor, the second inductor, the first ground terminal, and the second ground terminal. The first ground terminal and the second ground terminal are each connected to a ground and are not electrically connected to each other in the stack.
Claims3
A multilayer band-pass filter comprising:
- a first inductor and a second inductor electromagnetically coupled to each other;
- a first ground terminal electrically connected to the first inductor;
- a second ground terminal electrically connected to the second inductor;
- and
- a stack for integrating the first inductor, the second inductor, the first ground terminal, and the second ground terminal, wherein:
- the first ground terminal and the second ground terminal are not electrically connected to each other in the stack;
- the first inductor has a first end electrically connected to the first ground terminal, and a second end opposite to the first end;
- the second inductor has a third end electrically connected to the second ground terminal, and a fourth end opposite to the third end;
- the multilayer band-pass filter further comprises,
- a first capacitor directly connected to the second end of the first inductor and integrated with the stack,
- a second capacitor directly connected to the fourth end of the second inductor and integrated with the stack, and
- a third ground terminal that is not electrically connected to the first ground terminal and the second ground terminal in the stack;
- the third ground terminal is integrated with the stack;
- and
- the first capacitor and the second capacitor are directly connected to the third ground terminal.
12 more elements
Dependencies are inferred from the claim text.