分析了应用时域有限差分法(FDTD)计算的探头辐射场强值和应用传统经典公式计算结果的不同。引用一种“比较校准”的算法并结合FDTD所计算的理论值,对近场测量探头的输出值进行校准。在软件仿真和实际测量的两种情况下,针对不同形式的测量探头进行了校准,均得到了较为理想的校准结果。
The probe's radiating field values calculated by the classic formula and those by the FDTD method are analyzed. The output of the near-field measurement probe by a "Comparison Calibration" algorithm combined with the calculated values by the FDTA method is calibrated. Both simulation and practical measurements produced desired results when the method was applied to the calibration of different style probes.