As　unmanned　aerial　vehicles　(UAVs)　continue　to　play　an　increasingly　critical　role　in　reconnaissance　missions,　establishing　dependable　communication　links　between　UAVs　and　ground　stations　has　become　imperative.　Nevertheless,　ensuring　reliable　communication　remains　a　great　challenge,　particularly　in　environments　characterized　by　weak　signals　or　high　levels　of　electromagnetic　interference.　To　tackle　this　challenge,　this　study　presents　a　design　and　optimization　approach　for　a　miniature　UAV　antenna.　This　antenna　achieves　significant　performance　improvements　by　optimizing　the　magnetic　field　distribution　and　convergence　within　its　central　section.　Specifically　with　the　aim　of　capturing　and　amplifying　signals　in　a　specified　direction,　the　antenna　enhances　reception　sensitivity,　especially　in　challenging　operational　settings.　The　structure　ensures　robust　and　consistent　signal　reception　with　a　maximum　gain　of　up　to　12.8　dB　and　a　converging　magnetic　field　magnitude　of　2279　A/m　at　its　center.　Furthermore,　it　operates　effectively　within　the　C　band,　exhibiting　a　relative　bandwidth　of　12.2%.　This　capability　empowers　UAV　to　transmit　reconnaissance　data　accurately　and　swiftly,　regardless　of　the　distance　traveled　or　the　complexity　of　the　electromagnetic　environment.　This　advancement　not　only　enhances　UAV　capabilities　but　also　opens　new　possibility　for　applications　requiring　dependable　communication　in　diverse　and　demanding　scenarios.　　©　2019　IEEE.