Interactive Matlab Programs for Impedance Matching Teaching in Microwave Engineering

This paper presents four graphics user interface Matlab programs that students can use to explore the feature of different matching networks. Impedance matching is a typical and classical topic in microwave engineering teaching. The single-stub tuner and double-stub tuner are often used to match the complex load impedance to a transmission line. The single-section quarter-wave transformer and the multi-section quarter-wave Chebyshev transformer are used to match the real load impedance to a transmission line. The students can use the programs to verify their solutions easily.