Comparing the L&S and L-Band Antenna Low-Noise Amplifiers Designed by Multi-Objective Optimization

In the paper, it is demonstrated that the optimal properties of low-noise amplifiers in radio-frequency design can be achieved by the multi-objective optimization, which enables a suitable trade-off between the transducer power gain and noise figure in the form obtained on Pareto front. First, a modification of a classical multi-objective method is suggested that enables asymptotically uniform coverage of the Pareto front. Second, an application of the modified method is demonstrated in the design of the antenna low-noise amplifier for a satellite-navigation receiver. The efficiency of the algorithm is proved on its use for L- and L&S-band low-noise amplifiers, where the resulting amplification and noise-figure correspond to expected optima.