Abstract
This paper offers the design of a graphene-based MIMO antenna with an adjustable radiation pattern for THz communications. To make the radiation pattern adjustable a superstrate layer of graphene based patch, is added to the designed MIMO antenna which increases Channel Capacity. In addition to adjustable radiation pattern, the gain of antenna in the main lobe is also increased. The losses of THz channel is investigated and the angle of the main lobe of the designed antenna is set to the angle with the lowest loss. The channel capacity is evaluated and compared with the antenna without the superstrate layer. It is shown that channel capacity is significantly enhanced.
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