关键词: 分层遗传算法, 射频, 阻抗匹配, 早熟

Abstract: Matching impedance is very important to design RF antenna circuits. Optimized impedance is beneficial to realize low voltage and low power antenna circuits, and lower reflection coefficient will ensure that the antenna system can be running smoothly and reliably too. To avoid slow and premature convergence, it proposes a layered process technique and performs reformation including improving crossover operation. It runs the program on the MATLAB simulation platform with different loads at different frequencies and analyzes results in different conditions. These results indicate that the reformative GA can escape from premature convergence and it gets solutions whose errors are lower than predefined errors more speedy than the conventional GA.

Key words: multilevel genetic algorithm, radio frequency, impedance match, premature