Biomedical Engineering Reference
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Fig. 11 Comparison of simulated | S 11 | and gain among three cases, a Simulated | S 11 |, b Simulated
gain (from [ 10 ], reprinted with permission from IEEE)
Fig. 12 Comparison of simulated radiation patterns between three different arrays at 60 GHz (from
[ 10 ], reprinted with permission from IEEE)
soft-surface structure, the radiation performance is significantly improved, including
enhanced radiation field in the maximum radiation direction, lower cross polarization
of the H-plane, and reduced sidelobe radiation.
Mechanism for Performance Enhancement of Antenna Array by the
Soft-surface Structure
In order to investigate the mechanism for the novel soft-surface structures placed in
the antenna array, the electric field distributions on the top surface of the substrate
for the middle two-row eight elements of the antenna array simulated by HFSS are
shown in Fig. 13 .
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