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1. (WO2018043206) LC FILTER, HIGH FREQUENCY FRONT END CIRCUIT, AND COMMUNICATION DEVICE
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Pub. No.: WO/2018/043206 International Application No.: PCT/JP2017/029927
Publication Date: 08.03.2018 International Filing Date: 22.08.2017
IPC:
H03H 7/075 (2006.01) ,H03H 7/12 (2006.01) ,H04B 1/52 (2015.01)
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
H
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
7
Multiple-port networks comprising only passive electrical elements as network components
01
Frequency selective two-port networks
075
Ladder networks, e.g. electric wave filters
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
H
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
7
Multiple-port networks comprising only passive electrical elements as network components
01
Frequency selective two-port networks
12
Bandpass or bandstop filters with adjustable bandwidth and fixed centre frequency
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
52
Hybrid arrangements, i.e. for transition from single-path two-way transmission to single transmission on each of two paths, or vice versa
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:
森 弘嗣 MORI, Hirotsugu; JP
Agent:
吉川 修一 YOSHIKAWA, Shuichi; JP
傍島 正朗 SOBAJIMA, Masaaki; JP
Priority Data:
2016-17304205.09.2016JP
Title (EN) LC FILTER, HIGH FREQUENCY FRONT END CIRCUIT, AND COMMUNICATION DEVICE
(FR) FILTRE LC, CIRCUIT FRONTAL HAUTE FRÉQUENCE ET DISPOSITIF DE COMMUNICATION
(JA) LCフィルタ、高周波フロントエンド回路および通信装置
Abstract:
(EN) A frequency variable type LC filter (1A) is provided with: a multilayer substrate; a serial arm capacitor (11) that is formed in the multilayer substrate and is disposed on a serial arm path connecting an input electrode with an output electrode; and a parallel arm inductor (21) that is formed in the multilayer substrate and is disposed on a parallel arm path connecting a node (N1) on the serial arm path with a ground electrode. When the multilayer substrate is seen in plan view, among the serial arm capacitor (11) and the parallel arm inductor (21), only the parallel arm inductor (21) overlaps the ground electrode.
(FR) Selon l'invention, un filtre LC de type à fréquence variable (1A) est pourvu : d'un substrat multicouche; d'un condensateur de bras en série (11) qui est formé dans le substrat multicouche et disposé sur un trajet de bras en série connectant une électrode d'entrée à une électrode de sortie; et d'une bobine d'induction de bras en parallèle (21) qui est formée dans le substrat multicouche et disposée sur un trajet de bras en parallèle connectant un nœud (N1) sur le trajet de bras en série à une électrode de masse. Quand le substrat multicouche est vu dans une vue en plan, entre le condensateur de bras en série (11) et la bobine d'induction de bras en parallèle (21), seule la bobine d'induction de bras en parallèle (21) chevauche l'électrode de masse.
(JA) 周波数可変型のLCフィルタ(1A)は、多層基板と、当該多層基板内に形成され、入力電極と出力電極とを結ぶ直列腕経路上に配置された直列腕キャパシタ(11)と、当該多層基板内に形成され、直列腕経路上のノード(N1)とグランド電極とを結ぶ並列腕経路上に配置された並列腕インダクタ(21)とを備え、当該多層基板を平面視した場合、直列腕キャパシタ(11)および並列腕インダクタ(21)のうちの並列腕インダクタ(21)のみがグランド電極と重複する。
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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)