Multi-resonance / modal engineering for broadband and multiband microwave components, including filters and key RF front-end building blocks.

Wideband electromagnetic modeling and equivalent extraction for complex high-density circuit environments.

Circuit–antenna integration and co-design, covering coupled analysis and integration-driven broadband system design.

Broadband antennas and metasurfaces, including multimode/ultrawideband wave manipulation and related applications.

Computational electromagnetics and inverse scattering, with emphasis on robust wideband simulation methodologies for modern wireless systems.