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1. WO2022008957 - DUPLEXER, MULTIPLEXER AND MULTIBAND FILTER

Publication Number WO/2022/008957
Publication Date 13.01.2022
International Application No. PCT/IB2020/056432
International Filing Date 08.07.2020
IPC
H04B 1/525 2015.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details 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
38Transceivers, 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
40Circuits
50using different frequencies for the two directions of communication
52Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
525with means for reducing leakage of transmitter signal into the receiver
H03H 9/70 2006.1
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
9Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
70Multiple-port networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common or source
H04B 1/00 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details 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
Applicants
  • TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) [SE]/[SE] (AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BE, BF, BG, BH, BJ, BN, BR, BW, BY, BZ, CA, CF, CG, CH, CI, CL, CM, CN, CO, CR, CU, CY, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GT, GW, HN, HR, HU, ID, IE, IL, IN, IR, IS, IT, JO, JP, KE, KG, KH, KM, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MC, MD, ME, MG, MK, ML, MN, MR, MT, MW, MX, MY, MZ, NA, NE, NG, NI, NL, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SI, SK, SL, SM, SN, ST, SV, SY, SZ, TD, TG, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, WS, ZA, ZM, ZW)
  • JIAN, Chunyun [CA]/[CA] (US)
  • ZHOU, Mi [CA]/[CA] (US)
Inventors
  • JIAN, Chunyun
  • ZHOU, Mi
Agents
  • CAPEHART, Brent
  • NICOLAESCU, Alex
  • RAHMER, David
  • CARTIER, Francois
  • DUFORT, Julie
  • JIN, Haizhen
  • FORTIN, Jean-Pierre
  • GRABARI, Magdalena
  • DANIELS, Kent
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) DUPLEXER, MULTIPLEXER AND MULTIBAND FILTER
(FR) DUPLEXEUR, MULTIPLEXEUR ET FILTRE MULTIBANDE
Abstract
(EN) Methods and apparatuses are provided for a matched band pass filter utilized in a duplexer or multiplexer. In one embodiment, the matched band pass filter includes a filter part and a port-matching part that is coupled to and in signal communication with the filter part. The filter part is configured to filter an RF signal and includes an input port. The port-matching part includes an output port. The port-matching part is configured to provide impedance matching through the output port.
(FR) Des procédés et des appareils sont décrits pour un filtre passe-bande adapté utilisé dans un duplexeur ou un multiplexeur. Dans un mode de réalisation, le filtre passe-bande adapté comprend une partie filtre et une partie d'adaptation de port qui est couplée à la partie filtre et en communication de signal avec cette dernière. La partie filtre est configurée pour filtrer un signal RF et comprend un port d'entrée. La partie d'adaptation de port comprend un port de sortie. La partie d'adaptation de port est configurée pour fournir une adaptation d'impédance à travers le port de sortie.
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