An array antenna design based on a gridded parasitic patch stacked microstrip antenna element is presented. The radiating part in the top layer of one antenna element has nine rectangular metal patches placed in a grid with three rows and three columns with a separation of 0.1 mm between the patches. Two means of realising the array are investigated. In a regular concept, the parasitic patches of individual elements are placed next to each other, forming on the top layer a uniform grid of parasitic patches with six rows and six columns. In an alternative concept named as shared array, neighbouring antenna elements share one row and one column of parasitic patches, forming on the top layer a uniform grid of parasitic patches with five rows and five columns. The antenna arrays are designed for the 60 GHz band. The measured bandwidth is 13.8 GHz for the single antenna, 15.3 GHz for the array, and 12.4 GHz for the shared array. The measured realised gain at 60 GHz is 6 dBi for the single antenna, 11 dBi for the array, and 10.5 dBi for the shared array. The measured radiation patterns have good agreement with simulations.

中文翻译：

---

60 GHz频段的网格寄生贴片堆叠微带阵列天线

提出了一种基于栅格化寄生贴片堆叠微带天线元件的阵列天线设计。一个天线元件的顶层中的辐射部分具有九个矩形金属贴片，这些金属贴片放置在具有三行三列的网格中，这些贴片之间的间距为0.1 mm。研究了实现阵列的两种方法。定期在概念上，各个元素的寄生贴片彼此相邻放置，在顶层形成一个具有六行六列的均匀的寄生贴片网格。在称为共享阵列的替代概念中，相邻的天线元件共享一排和一列的寄生贴片，在顶层形成具有五行五列的均匀的寄生贴片网格。天线阵列设计用于60 GHz频段。对于单个天线，测得的带宽为13.8 GHz，对于单个天线，测得的带宽为15.3 GHz。阵列，共享阵列为12.4 GHz。对于单天线，在60 GHz处测得的实现增益为6 dBi，对于单天线，测量值为11 dBi。阵列，共享阵列为10.5 dBi。测得的辐射方向图与模拟具有很好的一致性。