A low-profile wideband dual-polarized microstrip antenna is presented for 5G communication. Using a periodical diamond structure, both low profile and wideband performance have been achieved with high port isolation. Relative bandwidths of 53.4% and 54.0% are obtained for two polarizations with a low profile of 0.047λ₀, where λ₀ is the free space wavelength at the center frequency of 4.18 GHz. The dual aperture coupling method is adopted for each polarization direction and high-order modes are stimulated across the passband. The measured port isolation of more than 30 dB is obtained. Unidirectional radiation patterns have been achieved with low cross-polarization levels. The proposed dual-polarized microstrip antenna can offer a low-profile structure and wideband performance, which can be another potential candidate for the 5G communication.

中文翻译：

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用于 5G 通信的薄型宽带双极化微带天线元件

一种用于 5G 通信的低剖面宽带双极化微带天线。使用周期性的菱形结构，通过高端口隔离实现了低调和宽带性能。对于具有 0.047 λ ₀低剖面的两个极化，获得 53.4% 和 54.0% 的相对带宽，其中λ ₀是中心频率为 4.18 GHz 的自由空间波长。每个偏振方向都采用双孔径耦合方法，并在通带上激发高阶模式。测得的端口隔离度超过 30 dB。已实现具有低交叉极化水平的单向辐射图。所提出的双极化微带天线可以提供低剖面结构和宽带性能，这可能是 5G 通信的另一个潜在候选者。