Abstract: Consideringtheproblemsoftheelectricalpropertiesareaffectedbythermaldeformationofsatellitecontrolantenna,apredictionmethodfortheextremetemperatureconditionsofsatellitecontrolantennawaspresented.Inthemethod,thesolarradiationwascombinedwiththeparabolicantennapanelequationtocalculatethesolardirectpointtrajectoryofsatellitecontrolantennas,anddeterminedtheantennapositionparameters.Thevariousenvironmentalfactorsofantennaweretakenintoaccountandtheextremeconditionsoftheantennawerepredicted.Comparedwiththesimulationandexperimentalresults,thereliabilityofthedirectsunlightpointtrajectorycalculationmethodandthepredictionmethodsoftheextremetemperatureconditionsareverified.

Key words: Satellite control antenna, Temperature effect, Direct sunlight point, Extreme temperature prediction