International Journal of Antennas and Propagation / 2018 / Article / Tab 4 / Research Article
Theoretical and Experimental Comparison Results of Dual-Channel 3D Quasi-Optical Network System between Frequency Selective Surface and Wire Grid Polarizer Table 4 The far-field results of 324 GHz channel.
Filter Angle (degree) Cross-polarization level First side-lobe of copolarization amplitude Simulation Near-to-far Far-field in CATR Simulation Near-to-far Far-field in CATR Ideal QZ integral Measurement Ideal QZ integral Measurement FSS Phi = 0 −32.01 dB −14.44 dB −16.78 dB −11.64 dB −53.08 dB −39.08 dB −27.09 dB −22.67 dB Phi = 90 −62.66 dB −15.04 dB −15.53 dB — −58.96 dB −38.86 dB −32.32 dB — Polarizer Phi = 0 −35.04 dB −21.94 dB −21.85 dB −34.93 dB −64.17 dB −48.66 dB −38.69 dB −45.22 dB Phi = 90 −30.61 dB −21.77 dB −19.76 dB — −68.79 dB −44.43 dB −36.89 dB — Air Phi = 0 −31.89 dB −24.38 dB −21.99 dB −30.3 dB −53.78 dB −40.49 dB −39.05 dB −46.57 dB Phi = 90 −295.6 dB −22.24 dB −26.14 dB — −60.1 dB −45.46 dB −41.4 dB —