Engineering

MIMO

Materials science

Radiation pattern

Graphene

Telecommunications

Computer science

Antenna (radio)

Physics

Nanotechnology

Optics

Terahertz radiation

Electronic engineering

Antenna efficiency

Channel (broadcasting)

Channel capacity

Side lobe

Optoelectronics

Optical and Quantum Electronics

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.

Channel capacity enhancement by adjustable graphene-based MIMO antenna in THz band