Abstract
A miniaturized 5G module of wideband dual-polarized mm-Wave antennas-in-package integrating non-mm-Wave antennas (AiPiA) for the multiple-input and multiple-output (MIMO) operations in both the 5G mm-Wave bands and non-mm-Wave band n78 for cellular phones is presented. In terms of the 10-dB return losses, this module can cover not only the 3GPP 5G mm-Wave bands (n257, n261, and n260) but also the planned 5G mm-Wave band (24.75–27.50 GHz) in China. Besides, by the dual polarizations (pol.), the MIMO operations in the mentioned mm-Wave bands can be realized. Moreover, for the lower limits of 6-dB return loss and –4-dB antenna efficiency, the two non-mm-Wave antennas in the module can support the 5G band n78 for the MIMO function with the in-band isolation higher than 15.12 dB and ECCs lower than 0.054. Thus, this miniaturized AiPiA module can innovatively serve as an appealing one-stop MIMO antenna total solution for the 5th generation mobile communications (5G) to greatly contribute to developments of cellular phones.
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