Wolfgang J.R. Hoefer enjoys worldwide recognition as a scholar, author, educator and technical leader in Microwave Engineering and Computational Electromagnetics. He laid the foundations for E-plane circuit design by translating electromagnetic field theory and mathematical formalism into novel computer-aided design tools. He pioneered time domain modeling of analog and high-speed circuits, and made seminal contributions to the principal time domain numerical methods employed today: Transmission Line Matrix (TLM) and Finite Difference Time Domain (FDTD) Modeling. The hallmark of his research is his capacity to translate scientific insight into powerful techniques and vital design tools that have become industry standards.