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1. (WO2017068852) HIGH-FREQUENCY FRONT-END CIRCUIT, AND METHOD FOR SUPPRESSING UNWANTED WAVE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2017/068852    International Application No.:    PCT/JP2016/074575
Publication Date: 27.04.2017 International Filing Date: 24.08.2016
IPC:
H04B 1/10 (2006.01), H03H 7/075 (2006.01), H03H 7/12 (2006.01), H04B 1/40 (2015.01), H04W 72/08 (2009.01)
Applicants: MURATA MANUFACTURING CO., LTD. [JP/JP]; 10-1, Higashikotari 1-chome, Nagaokakyo-shi, Kyoto 6178555 (JP)
Inventors: HORITA, Atsushi; (JP)
Agent: KAEDE PATENT ATTORNEYS' OFFICE; 1-4-34, Noninbashi, Chuo-ku, Osaka-shi, Osaka 5400011 (JP)
Priority Data:
2015-205247 19.10.2015 JP
Title (EN) HIGH-FREQUENCY FRONT-END CIRCUIT, AND METHOD FOR SUPPRESSING UNWANTED WAVE
(FR) CIRCUIT FRONTAL HAUTE FRÉQUENCE, ET PROCÉDÉ DE SUPPRESSION D'ONDE INDÉSIRABLE
(JA) 高周波フロントエンド回路、不要波抑制方法
Abstract: front page image
(EN)A high-frequency front-end circuit (10) is provided with a frequency-fixed filter (30) and a variable filter (40) for interference wave suppression. The frequency-fixed filter (30) attenuates a high-frequency signal outside of a specific frequency band. The variable filter (40) for interference wave suppression attenuates at least one high-frequency signal on an active communication channel being used by a system that is the cause of an interference wave generated in a nearby frequency domain including a wireless communication channel.
(FR)L'invention concerne un circuit frontal haute fréquence (10) qui comprend un filtre à fréquence fixe (30) et un filtre variable (40) destiné a une suppression d'onde d'interférence. Le filtre à fréquence fixe (30) atténue un signal haute fréquence à l'extérieur d'une bande de fréquence spécifique. Le filtre variable (40) destiné à une suppression d'onde d'interférence atténue au moins un signal haute fréquence sur un canal de communication actif utilisé par un système qui est la cause d'une onde d'interférence générée dans un domaine fréquentiel proche comprenant un canal de communication sans fil.
(JA)高周波フロントエンド回路(10)は、周波数固定フィルタ(30)と、干渉波抑制用可変フィルタ(40)とを備える。周波数固定フィルタ(30)は、特定の周波数帯域外の高周波信号を減衰させる。干渉波抑制用可変フィルタ(40)は、無線通信用チャンネルを含む近傍周波数領域内に生じた干渉波の原因となる、システムが使用している使用中の通信チャンネルの少なくとも1つの高周波信号を減衰させる。
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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, 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, KM, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)