A shared-surface dual-band antenna is proposed for 5G operation using characteristic mode analysis (CMA). The surface is the integration of a metasurface at the ${S}$ -band and a partially reflective surface (PRS) at the Ka-band. The resonant mode of the metasurface is excited by a microstrip-fed slot, and the PRS with a pair of substrate-integrated waveguide (SIW)-fed slots are employed to form a Fabry–Perot resonator antenna (FPRA). Measurements realized on a physical prototype of the antenna show a 10 dB impedance bandwidth of 23.45% and 9.76% and a realized gain that varies from 7.27 to 10.44 dBi and from 11.8 to 14.6 dBi, over the ${S}$ -band (3.2–4.05 GHz) and the Ka-band (26.8–29.55 GHz), respectively.

中文翻译：

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用于 5G 应用的共享表面双频天线

使用特征模式分析 (CMA) 提出了一种用于 5G 操作的共享表面双频带天线。表面是超表面在 ${S}$ -波段和部分反射面 (PRS) K a-乐队。超表面的谐振模式由微带馈电槽激发，并采用具有一对基板集成波导 (SIW) 馈电槽的 PRS 形成法布里-珀罗谐振器天线 (FPRA)。在天线的物理原型上实现的测量显示 10 dB 阻抗带宽为 23.45% 和 9.76%，实现的增益从 7.27 到 10.44 dBi 和从 11.8 到 14.6 dBi ${S}$ -band (3.2–4.05 GHz) 和 K a-band (26.8–29.55 GHz)，分别。