“…8(a), which shows the objective space for a -15-dBm of input power, with the color chart levels related to different gain values. It can be seen that, for a given value of input power, moving from a low to a high value of target gain, noise figure and flatness tend to improve [20]. However, below NF = 4 dB, In this way, the Euclidean distance d i between a given point and the origin can be associated with a quality function, denoted as fitness function:…”