Research Article

Theoretical and Experimental Comparison Results of Dual-Channel 3D Quasi-Optical Network System between Frequency Selective Surface and Wire Grid Polarizer

Figure 10

The near-field measurement results of 324 GHz channel in the dual-channel 3D QON system. From left to right are the measured plane of copolarization amplitude, the copolarization phase, the cross-polarization amplitude, and the cross-polarization phase.
(a) Near-field planar measurement by filter using FSS
(b) Near-field planar measurement by filter using polarizer
(c) Near-field planar measurement through air