Abstract
Metamaterial (MTM) is an artificial structure with electromagnetic specifications that are not available in materials naturally, as it acquires its distinctive characteristics from its shape. For this reason, this material has garnered great interest from researchers in the field of microwave components. In order to get around the restrictions and enhance the performance of antennas, MTM is also used in antennas. The 5G applications aspire to high gain and to provide acceptable performance, which gets attention to the necessity protection the human body from radiation. Metamaterial (MTM) provides surface waves suppression, in-phase reflection, and high impedance. This review paper addressed MTM in terms of its electrical analysis, simulation analysis, and internal structure of the unit cell to demonstrate its impact on the performance of the antenna. In addition to that, an overview of the strengths and weaknesses points of MTM characteristics have involved. Furthermore, the details about many applications like; Specific Absorption Rate (SAR) reduction, isolation, enhancing gain, miniaturization, reflector, and Artificial Magnetic Conductors AMC have been demonstrated to guide antenna designers to have an obvious picture of this material.
