He is internationally recognized for his expertise in electromagnetics, antenna design, optical metamaterials and metamaterial-enabled devices as well as for the development/application of inverse-design techniques.

[6] He is the director of the Penn State University Computational Electromagnetics and Antennas Research Laboratory.

[7] He has made research contributions to the areas of computational electromagnetics (MoM, FEM, FEBI, FDTD, DGTD, CBFM, RCWA, GO, GTD/UTD, etc.

), antenna theory and design, phased arrays (including ultra-wideband arrays), microwave devices, wireless and personal communication systems (including on-body networks), wearable and e-textile antennas, RFID tag antennas, conformal antennas, reconfigurable antennas, frequency selective surfaces, electromagnetic wave interactions with complex media, metamaterials, electromagnetic bandgap materials, zero and negative index materials, transformation optics, nanoscale electromagnetics (including nanoantennas), fractal and knot electrodynamics, and nature-inspired optimization techniques (genetic algorithms, clonal selection algorithms, particle swarm, wind driven optimization, and various other evolutionary programming schemes).

[8] Werner's work has been regarded for its real-world applicability and has served to advance the state of the art in electromagnetics design.