FRONT-END CIRCUIT AND COMMUNICATION DEVICE

To provide a front-end circuit capable of simultaneously transmitting a plurality of high frequency signals whose frequency bands at least partly overlap.SOLUTION: A front-end circuit 1 includes: a distributor 10 that power distributes a high frequency signal input into an input terminal 10a with a...

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Bibliographic Details
Main Author MORI KOJI
Format Patent
LanguageEnglish
Japanese
Published 08.10.2020
Subjects
BASIC ELECTRONIC CIRCUITRY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
RESONATORS
TRANSMISSION
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Summary:To provide a front-end circuit capable of simultaneously transmitting a plurality of high frequency signals whose frequency bands at least partly overlap.SOLUTION: A front-end circuit 1 includes: a distributor 10 that power distributes a high frequency signal input into an input terminal 10a with a predetermined distribution ratio and outputs it from output terminals 10b and 10c; a filter 11 that is connected to the output terminal 10b and has a first passband; and a filter 12 that is connected to the output terminal 10c and has a second passband whose frequency at least partly overlaps that of the first passband.SELECTED DRAWING: Figure 1 【課題】周波数帯域が少なくとも一部重なる複数の高周波信号を同時に伝送することが可能なフロントエンド回路を提供する。【解決手段】フロントエンド回路１は、入力端子１０ａに入力された高周波信号を予め定められた分配比で電力分配して出力端子１０ｂおよび１０ｃから出力する分配器１０と、出力端子１０ｂに接続され、第１通過帯域を有するフィルタ１１と、出力端子１０ｃに接続され、第１通過帯域と周波数が少なくとも一部重なる第２通過帯域を有するフィルタ１２とを備える。【選択図】図１
Bibliography:Application Number: JP20190063331