FDTD与DFT在分析开口式微波加热器中的应用

Analysis for the Open Microwave Heater By Using FDTD and DFT

本文应用时域有限差分法 (FDTD)和离散傅立叶变换 (DFT)分析和计算了一种开口式同轴加热装置内部谐振场和外部辐射场 ,给出了使用两种不同激励源以及是否使用扼流槽后的场的结果。测量结果显示了这种方法的准确性。

In this paper, resonant internal and radiated external electromagnetic fields of an open coaxial structure are analyzed and calculated by using FDTD and DFT. Two structures, with and without a quarter wave choke under two kinds of excitation are discussed. Good agreement with measurement results is obtained. This moveable open heater is convenient to establish intense hot zones as required in heating materials.