APPARATUS AND METHOD OF CORRECTING OUTPUT CHARACTERISTICS IN POWER COMBINATION APPARATUS

APPARATUS AND METHOD OF CORRECTING OUTPUT CHARACTERISTICS IN POWER COMBINATION APPARATUS

PROBLEM TO BE SOLVED: To provide an apparatus and a method that correct output characteristics through shifting the phases of a plurality of power amplifiers constituting a power combination apparatus.SOLUTION: A method of correcting output characteristics in a power combination apparatus includes t...

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Hauptverfasser: CHO YOUNG JU, SHIN KWAN-HO, IM YONG-SIK
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRONIC CIRCUITRY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PULSE TECHNIQUE
TRANSMISSION
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creator CHO YOUNG JU
SHIN KWAN-HO
IM YONG-SIK
description PROBLEM TO BE SOLVED: To provide an apparatus and a method that correct output characteristics through shifting the phases of a plurality of power amplifiers constituting a power combination apparatus.SOLUTION: A method of correcting output characteristics in a power combination apparatus includes the steps of: synchronizing digital up-converters included in a plurality of power amplifiers; adjusting a fine delay between signals coupled by the digital up-converters based on a frequency assignment; combining fine delay-compensated signals and output signals from the plurality of power amplifiers; and outputting the combined signal. If a combination gain acquired from the combined signal does not satisfy a predetermined reference value, the phase of an internal signal of a master power amplifier is shifted by a predetermined value. The phase of the internal signal of the master power amplifier is shifted by a value defined in a look-up table in correspondence with the voltage standing wave ratio of each of the plurality of power amplifiers.
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subjects BASIC ELECTRONIC CIRCUITRY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PULSE TECHNIQUE
TRANSMISSION
title APPARATUS AND METHOD OF CORRECTING OUTPUT CHARACTERISTICS IN POWER COMBINATION APPARATUS
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