Feldinteraktion mit nichtlinear beladenen Strukturen (Teil 1)

Project Title
Field Interaction with Nonlinear Structures -1
Principal Investigator
Project Abstract
This project aims to contribute at the intersection of three different research areas:

physics of electromagnetic field interaction with nonlinearly loaded, electrically large
structures and surfaces,
novel engineering applications for such structures and surfaces, and
efficient and stable numerical modeling and simulation of such structures and surfaces.

While – at least in principle – any radio transmission system is an example for the application of electromagnetic field interaction with a nonlinearly loaded structure (antenna connected to input stage including e.g. mixer and amplifiers) and as such is well understood and can be designed readily with existing commercial software, it is the massive loading, i.e. the connection of several hundreds of nonlinear loads over an electrically large area, that has been of interest in the recent past and that poses new challenges and opportunities for research. Applications that are foreseen or already looked at for these kind of structures and surfaces include energy-selective shielding waveform-dependent absorption, self-focusing of surface waves, RF limiters, subwavelength imaging, nonlinear radar and switching, and time-domain windowing among others.

The research project is conducted in cooparation with Prof. Grivet-Talocia of the Department of Electronics and Telecommunications Politecnico di Torino (POLITO), Italy. The team of Prof. Grivet-Talocia has both expertise in fields of reduced-order macromodeling and fast circuit simulation, both of which are essential for this project. The EMC Group at POLITO is one of the major contributors in both theory and applications of behavioral macromodeling techniques for electrical and electromagnetic systems. Prof. Grivet-Talocia is co-Author of the first book on Passive Macromodeling [02], together with Dr. Gustavsen. Since 2001, Prof. Grivet-Talocia and his group developed tool IdEM, a collection of state-of-the-art algorithms for macromodel generation.