[1] Engineers use Ansys HFSS primarily to design and simulate high-speed, high-frequency electronics in radar systems, communication systems, satellites, ADAS, microchips, printed circuit boards, IoT products, and other digital devices and RF devices.

ANSYS HFSS allows system and circuit designers to simulate EM issues such as losses due to attenuation, coupling, radiation and reflection.

[2] The benefits of simulating a circuit's high frequency behavior with high accuracy on a computer reduces the final testing and verification effort of the system as well as mitigating the necessity of building costly multiple prototypes, saving both time and money in product development.

[3] HFSS was originally developed by Professor Zoltan Cendes, Ph.D., and his students at Carnegie Mellon University.

[7][8] After various business relationships over the period 1996–2006, HP (which became Agilent EEsof EDA division) and Ansoft went their separate ways:[9] Over time, Ansys HFSS introduced a number of new technologies in computational EM simulation, including automatic adaptive mesh generation, tangential vector finite elements, transfinite elements, and reduced-order modeling.