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1. (WO2017130519) HIGH-FREQUENCY FRONT-END CIRCUIT AND COMMUNICATION DEVICE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/130519 International Application No.: PCT/JP2016/083327
Publication Date: 03.08.2017 International Filing Date: 10.11.2016
IPC:
H04B 1/48 (2006.01) ,H03H 7/12 (2006.01) ,H03H 9/64 (2006.01) ,H04B 1/00 (2006.01) ,H04B 1/04 (2006.01)
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
44
Transmit/receive switching
48
in circuit for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
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
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
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
02
Transmitters
04
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
Inventors:
堀田 篤 HORITA, Atsushi; JP
森 弘嗣 MORI, Hirotsugu; JP
Agent:
吉川 修一 YOSHIKAWA, Shuichi; JP
傍島 正朗 SOBAJIMA, Masaaki; JP
Priority Data:
2016-01285226.01.2016JP
Title (EN) HIGH-FREQUENCY FRONT-END CIRCUIT AND COMMUNICATION DEVICE
(FR) CIRCUIT FRONTAL HAUTE FRÉQUENCE ET DISPOSITIF DE COMMUNICATION
(JA) 高周波フロントエンド回路、通信装置
Abstract:
(EN) A high-frequency front-end circuit (10) performs wireless communication by using a utilization channel selected from among open communication channels of a plurality of communication channels in a communication band constituted of the plurality of communication channels that is within a specific frequency band used in a system, wherein the high-frequency front-end circuit is provided with a transmission-side amplifier circuit (71) and transmitter circuit (91) serving as a transmission-side circuit for generating a transmitted signal corresponding to the utilization channel from a pre-distortion-processed transmitted signal, and a variable-frequency filter (61) that is a variable filter for attenuating a spurious high-frequency signal at least in an adjacent channel adjacent to the utilization channel.
(FR) Un circuit frontal haute fréquence (10) effectue une communication sans fil à l'aide d'un canal d'utilisation choisi parmi des canaux de communication ouverts d'une pluralité de canaux de communication dans une bande de communication constituée de la pluralité de canaux de communication qui se situent dans une bande de fréquence spécifique utilisée dans un système, le circuit frontal haute fréquence étant doté d'un circuit amplificateur côté émission (71) et d'un circuit émetteur (91) servant de circuit côté émission pour générer un signal transmis correspondant au canal d'utilisation à partir d'un signal transmis traité par pré-distorsion, et un filtre à fréquence variable (61) qui est un filtre variable pour atténuer un signal haute fréquence parasite au moins dans un canal adjacent au canal d'utilisation.
(JA) 高周波フロントエンド回路(10)は、システムで使用する特定の周波数帯域内にある複数の通信チャンネルによって構成された通信バンドにおいて、複数の通信チャンネルの空き通信チャンネルの中から選択された利用チャンネルを用いて、無線通信を行う高周波フロントエンド回路であって、プリディストーション処理された送信信号から、利用チャンネルに対応した送信信号を生成する送信側回路としての送信側増幅回路(71)および送信回路(91)と、少なくとも利用チャンネルの隣隣接チャンネルにおける不要波の高周波信号を減衰させる可変フィルタである周波数可変フィルタ(61)と、を備える。
front page image
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, JP, KE, KG, 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 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)
Also published as:
CN108476035US20180331703