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1. (WO2012172909) DEMULTIPLEXER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2012/172909 International Application No.: PCT/JP2012/062503
Publication Date: 20.12.2012 International Filing Date: 16.05.2012
IPC:
H03H 9/72 (2006.01) ,H03H 7/46 (2006.01) ,H03H 9/17 (2006.01) ,H03H 9/54 (2006.01) ,H03H 9/64 (2006.01) ,H03H 9/70 (2006.01) ,H04B 1/40 (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
7
Multiple-port networks comprising only passive electrical elements as network components
46
Networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
H
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
9
Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
15
Constructional features of resonators consisting of piezo-electric or electrostrictive material
17
having a single resonator
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
54
comprising resonators of piezo-electric or electrostrictive material
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
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
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
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 (AllExceptUS)
谷口 康政 TANIGUCHI, Yasumasa [JP/JP]; JP (UsOnly)
Inventors:
谷口 康政 TANIGUCHI, Yasumasa; JP
Agent:
特許業務法人 宮▲崎▼・目次特許事務所 MIYAZAKI & METSUGI; 大阪府大阪市中央区常盤町1丁目3番8号 中央大通FNビル Chuo Odori FN Bldg., 3-8, Tokiwamachi 1-chome, Chuo-ku, Osaka-shi, Osaka 5400028, JP
Priority Data:
2011-13509217.06.2011JP
Title (EN) DEMULTIPLEXER
(FR) DÉMULTIPLEXEUR
(JA) 分波器
Abstract:
(EN) Provided is a demultiplexer in which it is possible to form a sharp stopband in a passband of a highpass filter, with minimal increase in the number of components and the size of the filter. A demultiplexer (1), in which one end of a lowpass filter (2) and a one end of a highpass filter (3) are connected to an antenna terminal (4), and an elastic-wave trap filter (6) is connected to the highpass filter (3). The elastic-wave trap filter forms in a second passband, which is a passband of the highpass filter (3), a stopband having a narrower frequency width than the second passband.
(FR) L'invention concerne un démultiplexeur qui permet de former une bande d'arrêt brusque dans une bande passante d'un filtre passe-haut, avec une augmentation minimale du nombre de composants et de la taille du filtre. Dans ledit démultiplexeur (1), une extrémité d'un filtre passe-bas (2) et une extrémité d'un filtre passe-haut (3) sont connectées à une terminaison d'antenne (4), et un filtre-bouchon à onde élastique (6) est connecté au filtre passe-haut (3). Le filtre-bouchon à onde élastique forme une deuxième bande passante, qui est une bande passante du filtre passe-haut (3), une bande d'arrêt ayant une largeur de fréquence plus étroite que la deuxième bande passante.
(JA)  部品点数の増大及び大型化をさほど招くことなく、ハイパスフィルタの通過帯域内において急峻な阻止帯域を形成することが可能とされている分波器を提供する。 アンテナ端子4に、ローパスフィルタ2との一端及びハイパスフィルタ3の一端が接続されており、ハイパスフィルタ3に、ハイパスフィルタ3の通過帯域である第2の通過帯域において第2の通過帯域よりも周波数幅が狭い阻止帯域を形成する弾性波トラップフィルタ6が接続されている、分波器1。
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, 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, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
CN103597744JPWO2012172909DE112012002502