WideBand WideAngle circular polarization of a multilayer patch antenna

This paper focuses on the design of a telemetry antenna system intended for agile small satellites. It provides an axial ratio lower than 3dB over ±60° conical space angle and over 15% of bandwidth. We show that this design provides high quality circular polarization properties for agile small satellites without having to suspend their mission to discharge their data and also without making sacrifices the antenna low profile and wide bandwidth. The design procedure and the performances of the antenna are presented and followed by a discussion.