Abstract-This document presents the investigations on two coupled reference antennas for LTE Band 13 (uplink 777MHz to 787MHz, downlink 746MHz to 756MHz). An important figure of merit to quantify coupling effects in multiple input multiple output (MIMO) antenna systems is the envelope correlation coefficient (ECC). The single antenna element is presented with radiation pattern and scattering parameters. It is a planar device, easy to be etched or milled as dimensions are given. The ECC investigations were done by measurement and simulation, the results are presented and compared. A good agreement between the simulated and the measured ECC can be recognized.