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

Figure 3

The radiation far-field and aperture patterns of corrugated feed horns.

(a) WR4 feed

(b) WR3 feed

(c) Far-field of WR4 at 183 GHz

(d) Far-field of WR3 at 324 GHz

(e) Aperture field of WR4 feed at 183 GHz. From left to right are aperture field, HE₁₁, HE₁₂, and HE₁₃

(f) Aperture field of WR3 feed at 324 GHz. From left to right are aperture field, HE₁₁, HE₁₂, and HE₁₃