Tightly Arranged Four-Element MIMO Antennas for 5G Mobile Terminals

By Changjiang Deng, Di Liu, Xin Lv. IEEE Transactions on Antennas and Propagation, 2019

147 citations recorded by the source corpus.

In this paper, a compact multiple-input multiple-output (MIMO) antenna is presented for 5G mobile terminals. The antenna consists of four tightly arranged elements and three lumped components. The edge-to-edge distance between adjacent elements is only 1 mm. It is found that adding an inductor at the current minimum location or a capacitor at the current maximum location of two elements can significantly reduce the mutual coupling. Based on high-isolated dual-element structures, a four-element MIMO antenna is experimentally analyzed for 3400–3600 MHz band. The size of the antenna is only <inline-formula> <tex-math notation="LaTeX">$40.8 \times 3$ </tex-math></inline-formula> mm². The measured −6 dB bandwidth of the antenna is 135 MHz, with port isolation higher than 11.6 dB. In addition, a vertically placed four-element MIMO antenna is designed with a size of <inline-formula> <tex-math notation="LaTeX">$38.2\times3.2$ </tex-math></inline-formula> mm². No ground clearance is needed between the antenna and the chassis ground.

Subfields: Aerospace Engineering, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/777ae7170ce28f84df557b5c883668bde8e38b59