Multiple Scanning Beam Antenna Configuration for Space Applications Using Reflectarrays

In this presentation, a new satellite antenna configuration realized by a TX and a RX reflectarray antenna will be proposed. Each antenna is composed of multiple horns and a single layer flat reflectarray. It radiates scanning beams with different radiation directions in azimuth due to polarization and each scanning beam with different radiation directions depending on frequency covers an elongate area in elevation. Each user in the service area selects the optimum frequency band and polarization determined by the position of the user. If 3 dB gain reduction is allowed, half of the frequency band can be used like the conventional multiple spot beam antenna configuration.