At last, basic principles for characterizing UWB antennas in both frequency and time domains are summarized and measurement methods using network analyzers are also given.

• 第四，将探讨超宽频天线于频域和时域之特性并将基本原理及重要公式作一整理与推导，并且述叙了对于时域研究藉由网路分析仪之量测方法。