One of the ways to obtain non-reciprocal response is a utilization of active components. Active components inherit non-linear responses and noise production. These “unwanted” accompanying response should be comprehended in advance, for metasurface application of this metamaterial structure in addition to planar microwave component, which are no needs to be considered in pure passive metamaerial structure. In this paper, noise figure as a response of frequency through the metamaterial operation frequency range is evaluated. The results indicate the clear necessity of noise figure consideration for the case of metamaterial structure including feedback loop and active component.