Millimeter-wave metallic-rectangular-grooves based reflectarray antenna and its applications to E-band multi-Gbps system

A novel metallic-rectangular-groove based Cassegrain-type reflectarray antenna is proposed. This antenna is design using overlapping T-block method based on mode-matching method, virtual current cancellation, and superposition principle, thereby obtaining analytic scattering equations in rapidly convergent and numerically efficient integrals. Cassegrain-type antenna has low loss feeding structure connecting between a transceiver and an antenna.