A Wide Scanning-Angle mmWave AiP Antenna Module for 5G Portable Terminals

Millimeter-Wave (mmW) communication in 5G mobile terminals requires mmW antenna to have low-profile design structure, wide-bandwidth and large-angle beam scanning. In this work, 4×2 array is presented which can be applied for the mmW communications of 5G mobile terminals. The array element design adopts a patch antenna structure with a shorting pin, which can excite an extra zero mode resonant frequency. Combined the 2nd zero mode and the original TM01 mode, the proposed array can give a broadband from 23.5-28 GHz, a large-angle beam scanning with ±60° coverage, as well as a low-profile substrate with 0.508 mm. Then, we designed an antenna in package (AiP) antenna module based on the proposed array, and the measured results have demonstrated good performance.