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1. (WO2018123545) MULTIPLEXER
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Pub. No.: WO/2018/123545 International Application No.: PCT/JP2017/044421
Publication Date: 05.07.2018 International Filing Date: 11.12.2017
IPC:
H03H 9/72 (2006.01) ,H03H 9/64 (2006.01) ,H04B 1/50 (2006.01)
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
H
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
9
Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
70
Multiple-port networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common or source
72
Networks using surface acoustic waves
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
H
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
9
Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
46
Filters
64
using surface acoustic waves
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
1
Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
38
Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
40
Circuits
50
using different frequencies for the two directions of communication
Applicants:
株式会社村田製作所 MURATA MANUFACTURING CO., LTD. [JP/JP]; 京都府長岡京市東神足1丁目10番1号 10-1, Higashikotari 1-chome, Nagaokakyo-shi, Kyoto 6178555, JP
Inventors:
小中 陽平 KONAKA, Yohei; JP
Agent:
吉川 修一 YOSHIKAWA, Shuichi; JP
傍島 正朗 SOBAJIMA, Masaaki; JP
Priority Data:
2016-25620028.12.2016JP
Title (EN) MULTIPLEXER
(FR) MULTIPLEXEUR
(JA) マルチプレクサ
Abstract:
(EN) Provided is a multiplexer (1) which is connected to a ladder filter through a common terminal (20) and is capable of improving transmission characteristics of a filter for low frequency bandwidth. The multiplexer is provided with: a filter (13); and a filter (14) comprising a ladder filter for passing a high frequency signal in a frequency bandwidth higher than that of the filter (13). The filter (14) has series arm resonators (32a to 32e) and parallel arm resonators (34a to 34d), and an inductor (36a) having an inductance value larger than the inductance value between the parallel arm resonator (34d) and the ground is connected between the parallel arm resonator (34a) and the ground.
(FR) L'invention concerne un multiplexeur (1) qui est connecté à un filtre d'échelle par l'intermédiaire d'un terminal commun (20) et qui est capable d'améliorer les caractéristiques de transmission d'un filtre pour une bande passante basse fréquence. Le multiplexeur comprend : un filtre (13) ; et un filtre (14) comprenant un filtre d'échelle pour faire passer un signal haute fréquence dans une bande passante de fréquence supérieure à celle du filtre (13). Le filtre (14) comprend des résonateurs à bras en série (32a à 32e) et des résonateurs à bras parallèles (34a à 34d), et un inducteur (36a) ayant une valeur d'inductance supérieure à la valeur d'inductance entre le résonateur à bras parallèle (34d) et la masse, est connecté entre le résonateur à bras parallèle (34a) et la masse.
(JA) ラダー型フィルタと共通端子(20)において接続された、低い周波数帯域に対応したフィルタの通過特性を向上することができるマルチプレクサ(1)を提供する。フィルタ(13)と、フィルタ(13)よりも高い周波数帯域の高周波信号を通過させるラダー型フィルタからなるフィルタ(14)とを備え、フィルタ(14)は、直列腕共振子(32a~32e)と並列腕共振子(34a~34d)とを有し、並列腕共振子(34a)とグランドとの間に、並列腕共振子(34d)とグランドとの間のインダクタンス値よりインダクタンス値が大きいインダクタ(36a)が接続されている。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)