In this paper, a low cost 28 GHz Antenna-in-Package (AIP) for a 5G communication system is designed and investigated. The antenna is implemented on a low-cost FR4 substrate with a phase shift control integrated circuit, AnokiWave phasor integrated circuit (IC). The unit cell where the array antenna and IC are integrated in the same plate constructs a flexible phase array system. Using the AIP unit cell, the desired antenna array can be created, such as 2 × 8, 8 × 8 or 2 × 64 arrays. The study design proposed in this study is a 2 × 2 unit cell structure with dimensions of 18 mm × 14 mm × 0.71 mm. The return loss at a 10 dB bandwidth is 26.5–29.5 GHz while the peak gain of the unit cell achieved 14.4 dBi at 28 GHz.

中文翻译：

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低成本AIP设计在5G柔性天线相控阵系统中的应用。

在本文中，针对5G通信系统的低成本28 GHz封装天线（AIP）进行了设计和研究。该天线在具有相移控制集成电路AnokiWave相量集成电路（IC）的低成本FR4基板上实现。阵列天线和IC集成在同一板上的单位单元构成了一个灵活的相位阵列系统。使用AIP单位单元，可以创建所需的天线阵列，例如2×8、8×8或2×64阵列。本研究中提出的研究设计是2×2晶胞结构，尺​​寸为18 mm×14 mm×0.71 mm。10 dB带宽时的回波损耗为26.5-29.5 GHz，而单位单元的峰值增益在28 GHz时达到14.4 dBi。