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Journal of Zhejiang University SCIENCE C 1998 Vol.-1 No.-1 P.

http://doi.org/10.1631/FITEE.2000514


A dual-polarized Fabry-Pérot antenna with high-gain and wide bandwidth for millimeter-wave applications


Author(s):  QingYi GUO, Hang WONG

Affiliation(s):  State Key Laboratory of Terahertz and Millimeter Waves, Department of Electrical Engineering, City University of Hong Kong, Hong Kong, China

Corresponding email(s):   guo_qingyi@163.com, hang.wong@cityu.edu.hk

Key Words:  Dual polarized, Fabry-Perot cavity antenna, PRS integrated with Fresnel zone lens, Millimeter-wave band, High-gain, Wideband


QingYi GUO, Hang WONG. A dual-polarized Fabry-Pérot antenna with high-gain and wide bandwidth for millimeter-wave applications[J]. Frontiers of Information Technology & Electronic Engineering, 1998, -1(-1): .

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Abstract: 
We introduce a dual-polarized (DP) Fabry-Pérot cavity (FPC) antenna operating at millimeter-wave (mmW) frequency band with high-gain and wideband characteristics. A DP feeding source and a partially reflective surface (PRS) integrated with a Fresnel zone lens are suggested to realize dual polarization wave radiation over a wide impedance bandwidth. The feeding source provides vertical- and horizontal-polarization while keeping high isolation between the two polarizations. The PRS is used for Fabry cavity realization to produce a directive beam radiation. The integrated Fresnel zone rings are introduced for phase correction, which leads to a significant gain enhancement for the antenna. For verification, a 60 GHz FPC antenna prototype with DP radiation was designed and fabricated with results measured. It consists of the feeding source, the (PRS) integrated with a Fresnel zone lens, a quasi-curved reflector and four 3D printed supporters. The results illustrate that the peak gains of vertical- and horizontal-polarization are 18.4 and 17.6 dBi, respectively. The impedance matching bandwidth for the two polarizations is 14%. The performance ensures that the proposed DP FPC antenna is a promising candidate for 5G wireless communications systems in the millimeter-wave band.

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