ARTICLES

Remcom

XFdtd Analyzes Complex Beam Steering Antenna Arrays

Remcom’s XFdtd® Electromagnetic Simulation Software contains analysis tools for rapidly characterizing the performance of arrays of antennas for beamforming and beam steering applications. This whitepaper demonstrates how unique features like superposition and array optimization simplify the process for understanding device performance by providing efficient ways to validate array coverage.


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Effects of Mobility on mmWave Beamforming in Dynamic, Urban Environments

In 5G and 6G, mmWaves bring the promise of new, high bandwidth frequency bands. Propagation losses and fast fading due to increasingly mobile devices and short wavelengths pose challenges for these new concepts. This paper explores the effectiveness of massive MIMO beamforming at mitigating mmWave propagation challenges using Wireless InSite and its mmWave hybrid beamformer capabilities to transmit data streams to a sedan driving in central Manhattan.


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Transient EM/Circuit Co-Simulation in XFdtd®: A Closer Look at TVS Diodes for ESD Protection

TVS diodes help protect electronic circuits from surge voltages associated with an ESD event. XFdtd’s transient EM/circuit co-simulation capability combines the strength of 3D full-wave electromagnetic simulation with the flexibility of circuit solvers. This paper examines the approach, which embeds a transient nonlinear circuit solver in the full-wave simulation so that all electromagnetic phenomena are accounted for in a single time-domain simulation.


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Providing Narrowband IoT Coverage with Low Earth Orbit Satellites

Non-terrestrial networks play a critical role providing service to locations not covered by terrestrial 5G networks. This paper describes the modeling of a SATCOM link, specifically how satellite coverage can be modeled using predictive simulation to capture important effects such as terrain masking, shadowing due to foliage, and multipath fading, which are essential to a proper evaluation of the link budget.


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