借助Maxwell方程组，将时域有限差分法应用于实验室研制的新型层叠式微机械微带贴片天线的建模和分析，并根据数值模拟结果讨论了天线的特性参数。根据实际情况，灵活地给出了各边界的近似吸收边界条件，有效地减少了存储空间和计算时间。关 键 词 微光机电系统; 微带贴片天线; 射频; 宽带; 时域有限差分法; 吸收边界条件Abstract Based on the Maxwell’s equation, the finite-difference time-domain method presented in this paper is efficient and accuracy for modeling and analyzing the micro-electro-mechanical systems multiplayer microstrip patch antenna studied by our lab. The antenna characteristic parameters are discussed by the result of simulation. It implements relatively compatible absorbing boundary conditions. Saving the computer memory and CPU time.Key words micro-electro-mechanical systems; microstrip patch antenna; radio frequency; broadband; finite-difference time-domain method; absorbing boundary conditions
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