Multi beam former

Multi beam former

A multi-beam-former for an antenna array is described, the multi-beam former comprises N transceiver terminals for connecting a transmitter and/or receiver and N antenna terminals for connecting to a respective antenna and a plurality of couplers and matrix phase shifters arranged in an N×N Butler m...

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Hauptverfasser: Gamand, Patrice, Descamps, Philippe
Format: Patent
Sprache:eng
Schlagworte:
ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
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creator Gamand, Patrice
Descamps, Philippe
description A multi-beam-former for an antenna array is described, the multi-beam former comprises N transceiver terminals for connecting a transmitter and/or receiver and N antenna terminals for connecting to a respective antenna and a plurality of couplers and matrix phase shifters arranged in an N×N Butler matrix configuration between the N transceiver terminals and the N antenna terminals. At least some of the matrix phase shifters include a switchable matrix phase shifter configured to switch between a respective first phase shift value and a respective second phase shift value; a plurality of bypassable phase shifters arranged between at least some of the couplers and the antenna terminals and configured to switch between a respective further phase shift value and a zero phase shift. The multi-beam former is operable to select one of M different beam angles for a signal, wherein M is greater than N.
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At least some of the matrix phase shifters include a switchable matrix phase shifter configured to switch between a respective first phase shift value and a respective second phase shift value; a plurality of bypassable phase shifters arranged between at least some of the couplers and the antenna terminals and configured to switch between a respective further phase shift value and a zero phase shift. 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subjects ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
title Multi beam former
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