High frequency is the inevitable trend of the development of communication industry. The traditional materials used in low frequency communication circuits can not meet the electrical performance requirements of high frequency communication. Accurate and stable dielectric constant (DK) and smaller dielectric loss (DF) are the important basis for the development of high frequency communication. PTFE is a resin material with the lowest dielectric constant and dielectric loss coefficient. It is the best choice for high frequency communication circuit materials due to its incomparable dielectric properties.