Impedance Matching Networks

Impedance matching networks are electrical circuits which, when connected between two networks, match the output impedance of the source (the first network) to the input impedance of the load (the receiving or second network). The purpose of matching these two impedances is to minimize wave reflection and/or to maximize the transfer of power between the system and the load. In this product area, impedance matching networks are complete systems with either manual or automatic modes of operation. Manual devices must be set by the user to monitor or tune a particular load. Automatic devices monitor or tune loads automatically. Typically, both types of impedance matching networks are used in large systems such as telecommunications and computer networks.