Signal integrity analysis of machine pressed coaxial connector for automotive system

Abstract

Different designs of machine pressed wire-to-wire coaxial connectors for automotive system are proposed and analyzed using a full wave 3D simulation tool. Reduced electromagnetic interference (EMI), impedance mismatch and voltage standing wave ratio (VSWR) are demonstrated using the simulation results. By eliminating unnecessary gaps and inserting air gaps in the housing shells, the signal integrity of wire-to-wire coaxial connectors for automotive system is improved. The proposed wire-to-wire coaxial connector can be used to elongate the RF cables within the automotive system with reduced EMI and impedance mismatch. Moreover, the proposed machine pressed connector design will reduce the total cost of coaxial connectors required for automotive systems.