Novel Broadband 3U CubeSat Reflectarray Antenna

A novel broadband reflectarray (RA) antenna for 3U CubeSat applications is investigated. A novel frequency selective surface (FSS) in the RA as ground plane for reducing radar cross section (RCS) and signals interference with other communication systems working in other frequency bands is applied. The RA divided to three panels and folded on the sides of the CubeSat to reduce the stowed volume. A novel circular polarization (CP) feed antenna with two stacked patches on two thick substrates with lossy dielectric constant is used to extend the 3dB axial ratio.