Space　membrane　structures　are　distinguished　by　their　low　surface　density,　reduced　rigidity,　and　lightweight　nature.　Yet,　they　face　numerous　dynamic　challenges　in　orbital　functioning,　highlighting　the　prominent　vibration　issue　in　these　membrane　antenna　designs.　This　study　conducts　a　numerical　simulation　of　thin-film　antenna　architecture　using　Abaqus　to　examine　how　film　thickness,　prestress,　and　various　elements　influence　the　structure＇s　dynamic　behavior.　Findings　indicate　that　film　thickness　primarily　influences　the　mass　matrix,　while　prestress　impacts　the　stiffness　matrix.　Improving　the　matrices　for　mass　and　stiffness　reduces　the　displacement　of　the　mid-point,　leading　to　a　more　consistent　and　efficient　dynamic　reaction　of　the　structure　in　handling　vibrations.　The　research　in　this　paper　provides　an　important　reference　for　vibration　control　and　performance　optimization　of　thin-film　antenna　structures.　©　2024　SPIE.