11 papers
Electromagnetic Bounds on Realizing Targeted MIMO Transfer Functions in Real-World Systems with Wave-Domain Programmability
Philipp del Hougne
A key question for most applications involving reconfigurable linear wave systems is how accurately a desired linear operator can be realized by configuring the system's tunable el…
Experimental Multiport-Network Parameter Estimation for a Dynamic Metasurface Antenna
Jean Tapie, Philipp del Hougne
Most use cases of reconfigurable antennas require an accurate forward model mapping configuration to radiated field (and reflections at feeds). Emerging dynamic metasurface antenna…
Effective Electromagnetic Degrees of Freedom in Backscatter MIMO Systems
Philipp del Hougne
While the definition of the effective electromagnetic degrees of freedom (EEMDOFs) of a static linear multiple-input multiple-output (MIMO) system is well established, the counterp…
Virtual VNA 2.0: Ambiguity-Free Scattering Matrix Estimation by Terminating Not-Directly-Accessible Ports with Tunable and Coupled Loads
Philipp del Hougne
We recently introduced the "Virtual VNA" concept which estimates the scattering matrix characterizing an arbitrarily complex linear reciprocal system with monomoda…
Benefits of Mutual Coupling in Dynamic Metasurface Antennas
Hugo Prod'homme, Jean Tapie, Luc Le Magoarou +1
Dynamic metasurface antennas (DMAs) are a promising embodiment of next-generation reconfigurable antenna technology to realize base stations and access points with reduced cost and…
Ambiguity-Aware Segmented Estimation of Mutual Coupling in Large RIS: Algorithm and Experimental Validation
Philipp del Hougne
Optimizing a real-life RIS-parametrized wireless channel with a physics-consistent multiport-network model necessitates prior remote estimation of the mutual coupling (MC) between…