A Yagi antenna array for 60-GHz WPAN

In recent years, WPAN (Wireless Personal Area Network) based on 60-GHz wireless communications has been highlighted in academia and the field of industry. At present, we are developing a 60-GHz CMOS transceiver prototype which includes a phased array. It is expected to be used for short range (5 meters) communication with several Gbps. This paper centers on the study of antennas in the transceiver. The antenna elements and arrays are designed and manufactured. First, the background of 60-GHz wireless communications is briefly introduced. After a detailed discussion, we decided to choose the antenna-in-package (AiP) solution and the Yagi antenna as elements, which based on the substrate of Scott glass. The phase array consists of two or four Yagi antenna elements. By simulation using Ansoft HFSS, the resulting gain of 4-elements array is 13.85dBi. A bandwidth of 8.2GHz and the efficiency of 95.4% are also obtained from the simulation.