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

Figure 12

The far-field radiation pattern results of 183 GHz channel.

(a) The far-field planar amplitude by near-to-far-field transformation. From left to right are FSS, polarizer, copper, and aluminum

(b) FSS: the amplitude and phase of far-field by simulation, near-to-far-field transformation, and aperture field integral

(c) Polarizer: the amplitude and phase of far-field by simulation, near-to-far-field transformation, and aperture field integral