This article presents a dual-polarized millimeter-wave endfire antenna array for mobile devices. The antenna array is integrated into a metal-framed mobile phone and radiates through a $20\times 3.5$ mm2 window in the metal frame. The measurement results show a realized gain above 6 dBi for the frequency band of 28–33 GHz for a three-element array. Beam-steering up to ±40 is possible. The array is physically offset from the metal frame, thus minimizing the capacitive loading effect on the sub-6 GHz antennas. Moreover, due to the lack of mechanical contact between the frame and the antenna module, the antenna is robust against external impacts or hits to the phone. The design of the antenna module facilitates integration in mobile devices for mm-wave operation.

中文翻译：

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用于移动设备的双极化毫米波端射天线

本文介绍了一种用于移动设备的双极化毫米波端射天线阵列。天线阵列集成在金属框架手机中，并通过金属框架中 20 美元\乘以 3.5 美元 mm2 的窗口辐射。测量结果显示，对于三单元阵列，在 28–33 GHz 的频带内实现的增益高于 6 dBi。光束控制可达±40。该阵列在物理上偏离金属框架，从而最大限度地减少了对 6 GHz 以下天线的电容负载影响。此外，由于框架和天线模块之间缺乏机械接触，因此天线能够抵抗外部撞击或手机撞击。天线模块的设计有助于集成到移动设备中以进行毫米波操作。