Fundamental Limits for Implanted Antennas: Maximum Power Density Reaching Free Space

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This paper rethinks Sharpness-Aware Minimization (SAM), which is originally formulated as a zero-sum game where the weights of a network and a bounded perturbation try to minimize/maximize, respectively, the same differentiable loss. We argue that SAM shou ...

Antennas have historically been the most common electromagnetic (EM) technology for wireless communication systems. Antenna as hardware is entirely dependent on the EM properties of the materials used, mostly related to the permittivity and permeability. I ...

We introduce a reconfigurable medium for the manipulation of elastic propagation properties of Lamb waves. It is based on a shape memory polymer (SMP) with temperature-dependent Young's modulus. Waves are excited by a laser pulse and detected by a laser vi ...

Riparian vegetation, which is commonly found in natural rivers and open channels, has a strong influence on flow structures. This paper describes a laboratory experiment on velocity distributions, secondary currents, and coherent structures in narrow open- ...

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The viable and safe application of wireless power transfer for powering bioelectronic implants requires understanding the wave propagation in heterogeneous and dispersive media, the electromagnetic exposure assessment, and the optimum design of the system ...

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With the application requirements of wireless technology in implantable bioelectronics, knowledge of the fundamental limits for implanted antennas becomes critical. In this work, we investigated the variation of maximum power density within simplified body ...

The Transfer Matrix formalism is ubiquitous when it comes to study wave propagation in various stratified media, applications ranging from Seismology to Quantum Mechanics. A relation between variables at two points in two different layers can be establishe ...

Space-time (ST) wave packets, in which spatial and temporal characteristics are coupled, have gained attention due to their unique propagation characteristics, such as propagation invariance and tunable group velocity in addition to their potential ability ...

Fundamental Limits for Implanted Antennas: Maximum Power Density Reaching Free Space

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Optothermal shaping of lamb waves with square and spiral phase fronts

Spatiotemporal energy‐density distribution of time‐reversed electromagnetic fields

Oblique streaming waves observed in multipactor-induced plasma discharge above a dielectric surface

Improving SAM Requires Rethinking its Optimization Formulation

Toward Metantennas: Metamaterial-Based Antennas for Wireless Communications

Optimization of elastic wave propagation in a reconfigurable medium by genetic algorithms with adaptive mutation probability

Experimental study on velocity distributions, secondary currents, and coherent structures in open channel flow with submerged riparian vegetation

Nonlinear interactions of ion acoustic waves explored using fast imaging decompositions

Long-distance coherent propagation of magnon polarons in a ferroelectric-ferromagnetic heterostructure

Scalable angular spectrum propagation

Lightning interaction with the ionosphere

A synthetic phase-contrast imaging diagnostic with spatial filtering for gyrokinetic simulations

Automatic and high-precision microseismic monitoring of progressive failure prior, during, and after tunnel excavation

Theoretical Efficiency and Dosimetry of Buffered On-body Transmitter Antennas for Wireless Powering of In-body Devices

Reduced basis methods for numerical room acoustic simulations with parametrized boundaries

Uncertainty Quantification by Multilevel Monte Carlo and Local Time-Stepping for Wave Propagation

Spectral element numerical simulation of the 2009 L'Aquila earthquake on a detailed reconstructed domain

On the Maximum Power Density of Implanted Antennas within Simplified Body Phantoms

Harmonic decomposition of the trace of 1D transfer matrices in layered media

Generation of OAM-carrying space-time wave packets with time-dependent beam radii using a coherent combination of multiple LG modes on multiple frequencies