RESEARCH INTERESTS

• Electromagnetic modeling of 3D high-frequency interconnection structures; full-wave analysis of waveguide-based aperture-coupled patch amplifier arrays; Generalized Scattering Matrix of patch and slot arrays in layered overmoded waveguides; integral equation methods, method of moments: spatial and quasi-optical power combining applications.
• Global modeling of spatial power combining amplifiers, including full-wave modeling of passive devices, field-circuit interaction of electromagnetic structures and amplifier circuits, simulation of coupling effects.
• Electric and magnetic dyadic Green's functions for layered open and closed guided-wave structures.
• Full-wave analysis of open and closed guided-wave structures; spectral-domain approach, method of moments.
• Modeling of microstrip and waveguide discontinuities: directional couplers, filters, resonant systems, Y-circulators, multiport junctions.
• Mode leakage and coupling on integrated transmission line circuits; control and suppression of radiation effects.
• Coupled-mode theory and its connection with catastrophe and bifurcation theories.
• Leaky-mode analysis of transient fields in layered media due to electric and magnetic line and dipole sources.