Reflectarray Antennas for Dual Polarization and Broadband Telecom Satellite Applications

By R. Florencio, José A. Encinar, Rafael R. Boix, Vicente Losada, Giovanni Toso. IEEE Transactions on Antennas and Propagation, 2015

171 citations recorded by the source corpus.

A reflectarray antenna with improved performance is proposed to operate in dual-polarization and transmit-receive frequencies in Ku-band for broadcast satellite applications. The reflectarray element contains two orthogonal sets of four coplanar parallel dipoles printed on two surfaces, each set combining lateral and broadside coupling. A 40-cm prototype has been designed, manufactured, and tested. The lengths of the coupled dipoles in the reflectarray cells have been optimized to produce a collimated beam in dual polarization in the transmit and receive bands. The measured radiation patterns confirm the high performance of the antenna in terms of bandwidth (27%), low losses, and low levels of cross polarization. Some preliminary simulations at 11.95 GHz for a 1.2-m antenna with South American coverage are presented to show the potential of the proposed antenna for spaceborne antennas in Ku-band.

Subfields: Aerospace Engineering, Civil and Structural Engineering

View Paper: https://www.semanticscholar.org/paper/752b6c2013219b5f1989b93b8daa728a424bb29b