Real-time active phase control for high power amplifier combining for space applications

A system is provided that enables real time active phase control at higher RF signal power levels to be achieved by compensation for phase variations due to daily and lifetime fluctuation of equipment temperature, equipment aging effects and path length changes due to redundancy reconfiguration amon...

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Bibliographic Details
Main Authors Durvasula, Bhaskar, Klibo, Rolf, Murdock, Gerald, Sawdey, James, Sowers, James
Format Patent
LanguageEnglish
Published 27.05.2004
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Summary:A system is provided that enables real time active phase control at higher RF signal power levels to be achieved by compensation for phase variations due to daily and lifetime fluctuation of equipment temperature, equipment aging effects and path length changes due to redundancy reconfiguration among others. This automated approach achieves the fastest and most accurate phase correction for efficient signal recombining. The system employs an RF signal which is split into parallel paths whose phase is adjusted employing the output of a feedback device and then amplified and sensed to provide the feedback signal and ultimately recombined.