Reduced-size TEM horn for short-pulse high-power electromagnetic systems

Several approaches for miniaturization TEM horn antenna while maintaining and/or improving its frequency and time domain performances and peak voltage/field strength handling are described. Understanding the sources of reflection and discontinuities including the methods of elimination thereof are considered first, followed by the loading approaches including dielectric, ferrite, and resistive. Analysis is performed using finite element method (FEM) and finite integration technique (FIT) full wave modeling as respectively implemented in ANSYS HFSS and CST Microwave Studio (MWS).