Interleaving sparse arrays: a new way to polarization-agile array antennas?

A new strategy to obtaining polarization-agile array antennas was discussed. It makes use of the interleaving of sparse (complementary) sub-arrays characterized by mutually orthogonal, linear polarizations. The validity of this approach was demonstrated by examining two examples of arrays designed for obtaining adjustable linearly-polarized waves. The advocated technique allows a significant reduction of the control circuitry´s complexity and the use of simple radiators, while guaranteeing the possibility to obtain complex and reconfigurable polarization states of the radiated field.