Rashidifar, Ali AminAli AminRashidifarDrenkhahn, Kevin EtienneKevin EtienneDrenkhahn2023-09-062023-09-062023https://publica.fraunhofer.de/handle/publica/45033310.23919/EuCAP57121.2023.101336362-s2.0-85162237378To accurately model a communication channel using channel sounding technique, having dual-polarized antenna elements and low mutual coupling between them is required. In this work a Defected Ground Structure (DGS) is proposed to reduce the mutual coupling between two dual polarized mmWave antenna elements in an array structure. The defected ground is made of etched C-shape slots. The presence of the DGS has a strong impact on H-plane coupling where a suppression of 35 dB is achieved, while the reduction of E-plane coupling is about 4 dB. The unwanted effect on the radiation patterns is negligible and the back radiation is not increased.endefected ground structuremmWave antennamutual couplingconference paper