Understanding the Capacitive Coupling with Influence Factors and Applications

Abstract

After the concept of electromagnetic fields was summarized by scientists, a new technique called capacitive coupling was invented. This technique is a way to transmit signals. The front-end circuit and back-end circuit may be connected together by a capacitive coupling to eliminate physical contact. Such a capacitive coupling minimizes the possibility of poor physical contact between two circuits due to vibration, corrosion and the like. Thus, the reliability and stability of data between the two circuits are improved. It can be applied to many practical aspects. At the same time, the application of capacitive coupling electrode has its limitations. The limitations come from the coupling area and distance, electrode materials and other influencing factors. There are many problems in the application process. Scientists have come up with a number of solutions. This paper summarizes the information about capacitive coupling electrode. Then this paper lists some factors that influence capacitive coupling as well as some practical applications of it.