Title :
Circularly polarized millimeter-wave rectenna on silicon substrate
Author :
Rasshofer, Ralph H. ; Thieme, Markus O. ; Biebl, Erwin M.
Author_Institution :
Inst. fur Hochfrequenztech., Tech. Univ. Munchen, Germany
fDate :
5/1/1998 12:00:00 AM
Abstract :
A circularly polarized (CP) silicon-integrated W-band rectenna (r_e_c_t_ifying ante_n_n_a_) 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) >14 dB @ 76 GHz over a wide range of the scan angle (12 dB @ ±20°)
Keywords :
active antennas; microstrip antennas; millimetre wave antennas; optimisation; radar antennas; radar polarimetry; receiving antennas; rectification; 76 GHz; Si; W-band rectifying antenna; circularly polarized millimeter-wave rectenna; cross-polarization discrimination; monolithic integration; numerical optimization; planar dual-patch antenna; receiver; silicon substrate; six-port polarimetric radar system; supergrid method; Design optimization; Millimeter wave radar; Millimeter wave technology; Optimization methods; Polarization; Radar antennas; Radar polarimetry; Receiving antennas; Rectennas; Silicon;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
