A circularly polarized (CP) silicon-integrated W-band rectenna (r lowbar; e lowbar; c lowbar; t lowbar; ifying ante lowbar; n lowbar; n lowbar; a lowbar; ) for use in six-port polarimetric radar systems was designed, numerically optimized, and fabricated. A rigorous numerical optimization was performed by using the supergrid method (SGM). The rectenna applies a novel low-loss purely planar dual-patch antenna (DPA) layout, which allows the receiver to be manufactured using monolithic integration. The measurement results for the receiver demonstrate an excellent cross-polarization discrimination (XPD) gt; 14 dB @ 76 GHz over a wide range of the scan angle (12 dB @ plusmn; 20 deg; )     «

A circularly polarized (CP) silicon-integrated W-band rectenna (r lowbar; e lowbar; c lowbar; t lowbar; ifying ante lowbar; n lowbar; n lowbar; a lowbar; ) for use in six-port polarimetric radar systems was designed, numerically optimized, and fabricated. A rigorous numerical optimization was performed by using the supergrid method (SGM). The rectenna applies a novel low-loss purely planar dual-patch antenna (DPA) layout, which allows the receiver to be manufactured using monolithic integration....     »