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International Journal of Antennas and Propagation
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International Journal of Antennas and Propagation
/
2018
/
Article
/
Tab 2
/
Research Article
Theoretical and Experimental Comparison Results of Dual-Channel 3D Quasi-Optical Network System between Frequency Selective Surface and Wire Grid Polarizer
Table 2
The near-field measurement data of 324 GHz channel.
Filter
Cross-polarization level
Beam radius (
ω
) at D6 = 160 mm
Measurement consistency
Simulation
Measurement
Simulation
Measurement
Theoretical value
η
s
η
v
FSS
−29.47 dB
−13.45 dB
15.710 mm = 16.966
λ
14.44 mm = 15.595
λ
15.145 mm = 16.35
λ
96.5117%
92.3030%
Polarizer
−32.06 dB
−19.93 dB
15.375 mm = 16.605
λ
14.74 mm = 15.919
λ
99.9649%
98.6356%
Air
−31.91 dB
−18.44 dB
15.450 mm = 16.686
λ
14.89 mm = 16.131
λ
100%
100%