Haihan Sun, an assistant professor of electrical and computer engineering at the University of Wisconsin-Madison, has been awarded the 2026 Donald G. Dudley Jr. Undergraduate Teaching Award by the IEEE Antennas and Propagation Society. This recognition highlights her passionate and impactful teaching and mentorship of undergraduate students in electromagnetics, as well as her efforts to foster engagement at various levels. Sun's research focuses on antennas, ground-penetrating radar, microwave sensing, and nondestructive testing. She earned her bachelor's degree in electrical engineering from Beijing University of Posts and Telecommunications, China, in 2015, and her PhD in applied electromagnetics from the University of Technology Sydney, Australia, in 2019. Following her PhD, she served as a Postdoctoral Research Fellow at Nanyang Technological University, Singapore, from 2019 to 2023. Sun has also been recognized as an IEEE AP-S Young Professional Ambassador in 2024 and received a National Science Foundation-funded CAREER Award in 2026. The award will be presented at the 2026 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting in Detroit, Michigan, in July 2026.