Intelligent radio surface (IRS) is a programmable structure that can be used to control the propagation of electromagnetic waves by changing the electric and magnetic properties of the surface. By placing these surfaces in an environment, the properties of radio channels can be, at least partially, controlled. This opens new possibilities to improve the performance of wireless systems and introduce new service. In this paper, the basic operation of antenna array and metasurface based IRS is described and a review on the use of IRS in wireless communication applications operating below 10 GHz frequency band is given.
Intelligent Radio Surfaces Below 10 GHz
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