Layered low-pass filter
First Claim
1. A layered low-pass filter comprising:
- a layered substrate including a plurality of dielectric layers stacked;
an input terminal and an output terminal each disposed on a periphery of the layered substrate;
a first inductor and a second inductor each formed using at least one conductor layer provided within the layered substrate, the first and second inductors being connected in series to each other and, in terms of circuit configuration, located between the input terminal and the output terminal; and
first to fifth capacitors and third to fifth inductors provided within the layered substrate, wherein;
in terms of circuit configuration, the first inductor is located closer to the input terminal than is the second inductor;
each of the first and second inductors has an input for receiving signals and an output for outputting signals;
the output of the first inductor is connected to the input of the second inductor;
the first capacitor is connected in parallel to the first inductor;
the second capacitor is connected in parallel to the second inductor;
the third capacitor has a first end connected to the output of the first inductor and to the input of the second inductor;
the fourth capacitor has a first end connected to the input of the first inductor;
the fifth capacitor has a first end connected to the output of the second inductor;
the third inductor connects a second end of the third capacitor to a ground;
the fourth inductor connects a second end of the fourth capacitor to the ground; and
the fifth inductor connects a second end of the fifth capacitor to the ground.
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Accused Products
Abstract
A layered low-pass filter includes: a first inductor and a second inductor that are connected in series and are located between an input terminal and an output terminal; a first capacitor connected in parallel to the first inductor; a second capacitor connected in parallel to the second inductor; and third to fifth capacitors and third to fifth inductors. The output of the first inductor and the input of the second inductor are connected to the ground via the third capacitor and the third inductor connected in series. The input of the first inductor is connected to the ground via the fourth capacitor and the fourth inductor connected in series. The output of the second inductor is connected to the ground via the fifth capacitor and the fifth inductor 8 connected in series.
19 Citations
2 Claims
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1. A layered low-pass filter comprising:
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a layered substrate including a plurality of dielectric layers stacked; an input terminal and an output terminal each disposed on a periphery of the layered substrate; a first inductor and a second inductor each formed using at least one conductor layer provided within the layered substrate, the first and second inductors being connected in series to each other and, in terms of circuit configuration, located between the input terminal and the output terminal; and first to fifth capacitors and third to fifth inductors provided within the layered substrate, wherein; in terms of circuit configuration, the first inductor is located closer to the input terminal than is the second inductor; each of the first and second inductors has an input for receiving signals and an output for outputting signals; the output of the first inductor is connected to the input of the second inductor; the first capacitor is connected in parallel to the first inductor; the second capacitor is connected in parallel to the second inductor; the third capacitor has a first end connected to the output of the first inductor and to the input of the second inductor; the fourth capacitor has a first end connected to the input of the first inductor; the fifth capacitor has a first end connected to the output of the second inductor; the third inductor connects a second end of the third capacitor to a ground; the fourth inductor connects a second end of the fourth capacitor to the ground; and the fifth inductor connects a second end of the fifth capacitor to the ground. - View Dependent Claims (2)
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Specification