Abstract
A slotted dielectric Fresnel lens antenna designed to work in the 60 GHz band is designed. The antenna consists of a feed structure and a lens structure. Using the HFSS microwave simulation software, a half-wave dipole feed structure was first designed, and a slotted dielectric Fresnel lens antenna was designed based on the half-wave dipole feed structure. Then, through simulation and comparison of the effect of different full-wave periods w on the focusing performance of the slotted dielectric Fresnel lens antenna when the sub-region P = 4, it is concluded that the full-wave period of 3 is the optimal number of full-wave periods. After the half-wave dipole antenna is focused by the slotted dielectric Fresnel lens antenna with sub-region P = 4 and full-wave period w = 3, the antenna gain is increased by 18.27 dB and the beam angle is reduced by 73°.
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