Professor Yang's research focuses on the development of Microwave and Terahertz systems for various research and commercial applications, including quality control in large-scale manufacturing and homeland security screening. Additionally, he explores fundamental material physics for applications in high power, high energy storage devices, 5G/6G communication devices and biomedical applications. He conducts electromagnetic measurements on diverse solid condensed matters such as dielectric ceramics, magnets, semiconductors and superconductors. Recently, he has expanded his research to include the utilization of electromagnetic absorption and other sensors to measure human respiration disorder conditions, particularly during sleeping.