Physically consistent modelling of wireless links with reconfigurable intelligent surfaces using multiport network analysis

JA Nossek, D Semmler, M Joham… - IEEE Wireless …, 2024 - ieeexplore.ieee.org
Reconfigurable intelligent surfaces (RISs) are an emerging technology for engineering the
channels of future wireless communication systems. The vast majority of research …

On reciprocity in physically consistent TDD systems with coupled antennas

T Laas, JA Nossek, S Bazzi… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
We consider the reciprocity of the information-theoretic channel of Time Division Duplex
(TDD) Multi-User-Multiple Input Multiple Output (MU-MIMO) systems in the up-and downlink …

Analysis of Intelligent Surface-Aided MIMO Communication Systems

JA Russer, D Semmler, M Joham… - WSA & SCC 2023; …, 2023 - ieeexplore.ieee.org
Re-configurable intelligent surface (RIS) supported wireless multiple input multiple output
(MIMO) communication systems, facilitating control of the scattering, reflection, and refraction …

Braid shielding effectiveness Kron's Model via coupled cables configuration

C Cholachue, B Ravelo, A Simoens… - … on Circuits and …, 2019 - ieeexplore.ieee.org
This brief develops a circuit theory on shielding effectiveness (SE) Kron's modelling of
parallel coupled nude-braided cables. The model is established via the approach of …

Modelling of Wireless Links with Reconfigurable Intelligent Surfaces Using Multiport Network Analysis

JA Nossek, D Semmler, M Joham… - 2024 27th International …, 2024 - ieeexplore.ieee.org
Reconfigurable intelligent surfaces (RISs) are an emerging technology for engineering the
channels of future wireless communication systems. The vast majority of research …

Physically consistent modeling of multi-antenna systems

TC Laas - 2022 - mediatum.ub.tum.de
Physically consistent modeling takes mutual coupling between the antennas within antenna
arrays into account. The reciprocity of the channel is analyzed, and a comparison with the …

Matching strategies for multi-antenna arrays in single and multiuser scenarios

TA Vasconcelos - 2020 - repositorio.ufc.br
In modern mobile communication systems, arrays of many antennas, spaced in centimeters
or millimeters, are sought to reach ambitious goals. However, the electromagnetic …

On the impact of the mutual impedance of an antenna array on power and achievable rate

T Laas, JA Nossek, S Bazzi… - WSA 2018; 22nd …, 2018 - ieeexplore.ieee.org
In this paper, we consider antennas arrays with small mutual resistance, and assess the
impact of neglecting both the small mutual resistance and the mutual reactance, on the …