This application brief is intended to help oscilloscope users develop a basic understanding of S-parameters. This information will be useful in operating LeCroy’s Eye Doctor™ II Advanced Signal Integrity Tools.An Introduction to S-Parameters APPLICATION BRIEF LAB-1025 March 11, 2009 Our starting point is a simple two port network shown in Figure 1. The device under test (DUT) is a “black box” network, it can have resistors, capacitors, inductors, transistors, transmission lines, etc. Measurements Summary can be made at each “port” to characterize the network, which can be single-ended or differential. The load impedance, ZL, and the source This application brief is impedance, ZS, ar……