Multiplexer and low pass filter for multiplexer
First Claim
1. A multiplexer through which different frequency bands pass comprising:
- a housing that includes an I/O terminal and a channel group which inputs and/or outputs frequencies of different ranges, includes a plurality of connectors, and is separated from the I/O terminal;
a low-pass filter provided inside the housing, electrically connected to the I/O terminal, and formed of a distributed constant type;
a common capacitor provided in parallel to the low-pass filter and electrically connected to a contact point between the I/O terminal and the low-pass filter; and
a cavity filter which includes a plurality of cavities which are formed in the housing and a resonator which is respectively installed in the cavities,wherein a part of the cavity filter is electrically connected between the low-pass filter and a part of the channel group, andwherein the other part of the cavity filter is electrically connected between the common capacitor and the other part of the channel group.
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Accused Products
Abstract
A multiplexer through which different frequency bands pass, including: a housing that includes an I/O terminal and a channel group which inputs and/or outputs frequencies of different ranges, includes a plurality of connectors, and is separated from the I/O terminal; a low-pass filter provided inside the housing, electrically connected to the I/O terminal, and formed of a distributed constant type; a common capacitor provided in parallel to the low-pass filter and electrically connected to a contact point between the I/O terminal and the low-pass filter; and a cavity filter which includes a plurality of cavities which are formed in the housing and a resonator which is respectively installed in the cavities.
18 Citations
10 Claims
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1. A multiplexer through which different frequency bands pass comprising:
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a housing that includes an I/O terminal and a channel group which inputs and/or outputs frequencies of different ranges, includes a plurality of connectors, and is separated from the I/O terminal; a low-pass filter provided inside the housing, electrically connected to the I/O terminal, and formed of a distributed constant type; a common capacitor provided in parallel to the low-pass filter and electrically connected to a contact point between the I/O terminal and the low-pass filter; and a cavity filter which includes a plurality of cavities which are formed in the housing and a resonator which is respectively installed in the cavities, wherein a part of the cavity filter is electrically connected between the low-pass filter and a part of the channel group, and wherein the other part of the cavity filter is electrically connected between the common capacitor and the other part of the channel group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification