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1. WO2022003246 - BEAM STEERING DEPENDENT IMPEDANCE MATCHING OF ARRAY ANTENNAS

Publication Number WO/2022/003246
Publication Date 06.01.2022
International Application No. PCT/FI2021/050494
International Filing Date 24.06.2021
IPC
H04B 1/04 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
02Transmitters
04Circuits
H03H 11/28 2006.1
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
11Networks using active elements
02Multiple-port networks
28Impedance matching networks
H04B 7/06 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
H04B 7/08 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
08at the receiving station
H04B 7/0408 2017.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
0408using two or more beams, i.e. beam diversity
H04B 7/0404 2017.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
0404the mobile station comprising multiple antennas, e.g. to provide uplink diversity
Applicants
  • NOKIA TECHNOLOGIES OY [FI]/[FI]
Inventors
  • SVENDSEN, Simon
  • CAPORAL DEL BARRIO, Samantha
  • HARREBEK, Johannes
Agents
  • NOKIA TECHNOLOGIES OY
  • UUSITALO, Arttu
Priority Data
2020572003.07.2020FI
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) BEAM STEERING DEPENDENT IMPEDANCE MATCHING OF ARRAY ANTENNAS
(FR) ADAPTATION D'IMPÉDANCE DÉPENDANT DE LA DIRECTION DE FAISCEAU D'ANTENNES EN RÉSEAU
Abstract
(EN) According to an aspect, there is provided a radio frequency front end (202) for a beamforming transceiver (201) having an antenna array comprising a plurality of antenna elements. The radio frequency front end comprises, for each antenna element, at least two radio frequency beamforming branches (218, 219). Each of at least one of said at least two radio frequency beamforming branches comprises an electrically tunable phase shifting element (221, 231), first and second transmission/ reception switches (223, 233), a low-noise amplifier (225, 235) for reception and a power amplifier (224, 234) for transmission. Moreover, each of at least one of said at least two radio frequency beamforming branches comprises an electrically switchable matching circuit (226, 236). The electrically switchable matching circuit comprises two or more matching circuit settings selectable via switching. Each of the two or more matching circuit settings is configured for providing impedance matching for an antenna element at one or more beam steering angles in transmission.
(FR) Selon un aspect, l'invention concerne une extrémité avant radiofréquence (202) pour un émetteur-récepteur de formation de faisceau (201) ayant un réseau d'antennes comprenant une pluralité d'éléments d'antenne. L'extrémité avant radiofréquence comprend, pour chaque élément d'antenne, au moins deux branches de formation de faisceau radiofréquence (218, 219). Chacune d'au moins une desdites au moins deux branches de formation de faisceau radiofréquence comprend un élément de déphasage accordable électriquement (221, 231), des premier et second commutateurs d'émission/réception (223, 233), un amplificateur à faible bruit (225, 235) pour la réception et un amplificateur de puissance (224, 234) pour l'émission. De plus, chacune d'au moins une desdites au moins deux branches de formation de faisceau radiofréquence comprend un circuit d'adaptation commutable électriquement (226, 236). Le circuit d'adaptation commutable électriquement comprend au moins deux réglages de circuit d'adaptation sélectionnables par commutation. Chacun des au moins deux réglages de circuit d'adaptation est configuré pour fournir une adaptation d'impédance pour un élément d'antenne à un ou plusieurs angles de direction de faisceau pendant l'émission.
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