目前由于电子产品中器件非线性引起的电磁可靠性问题变得越来越严重，为了准确评估不同导电胶产品在正弦信号激励下非线性特性的优劣，设计了一套基于窄带滤波器和微带线的简单且行之有效的非线性特性测试 方法，在测试中使用滤波器排除测试系统固有的三次谐波。由于非线性效应会产生电压、电流的高次谐波成分，该方法以三次谐波的功率作为导电胶的非线性特性的衡量指标，通过测量不同导电胶的三次谐波功率来完成非 线性特性的对比测试，为导电胶的测试评价及设计研发提供技术支撑。

Nowadays, the issue of electromagnetic reliability due to the non-linear effect of the components in electronic products becomes more serious. In this paper, a simple and effective test and evaluation method based on narrow-band filter and microstrip line is designed to accurately demonstrate the characteristic of different Electrically Conductive Adhesives(ECA) under Sinusoidal Excitation. A filter is adopted to eliminate the intrinsic harmonics in the test system. The high-order harmonics components are generated due to the non-linear effect. The power of the third-order harmonics is used as a measurement index for non-linear effect of electrically conductive adhesives in this method. The comparison test can be conducted by measuring the power of the third-order harmonics of different electrically conductive adhesives. This work provides strong technology supports for the evaluation and design of Electrically Conductive Adhesives.