本文给出了用“三项理论”设计对数周期偶极天线(以下简称LPDA)的计算机程序，它能快速地设计出该天线的各几何参数和电参数，并可进行优化。
A computer program is given for log-periodic dipole antenna (LPDA) design with the "Three-Term" theory. The program can quickly design and optimize physical or electrical parameters of LPDA.
假设传递函数为无记忆瞬时传递函数，并将它分解为奇次项和偶次项，以便计算各阶互调产物的具体形式。
A general instantaneous transfer function for a nonlinear device is assumed and it is decomposed into odd and even terms in order to calculate the concrete forms of intermodulation products.
当安装在试样的受热面，热电偶被固定在表面上通过一项特别抗热大院。
When installed on the specimen's heating surfaces, the thermocouples were fixed on the surface by means of a special thermoresistant compound.
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