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Simultaneous wireless information and power transfer (SWIPT) has emerged as a viable technique to energize and connect low-power autonomous devices and enable future Internet of Things (IoT). A major challenge of SWIPT is the energy…

Information Theory · Computer Science 2021-04-20 Junghoon Kim , Bruno Clerckx

Radio frequency (RF) wireless power transfer (WPT) is a key technology for future low-power wireless systems. However, the inherently low end-to-end power transfer efficiency (PTE) is challenging for practical applications. The main factors…

Signal Processing · Electrical Eng. & Systems 2024-05-10 Abdul Basit Khattak , Onel L. A. López , Amirhossein Azarbahram , Deepak Kumar , Matti Latva-aho

Harnessing parity-time (PT) symmetry with balanced gain and loss profiles has created a variety of opportunities in electronics from wireless energy transfer to telemetry sensing and topological defect engineering. However, existing…

Applied Physics · Physics 2022-07-26 Weidong Cao , Changqing Wang , Weijian Chen , Song Hu , Hua Wang , Lan Yang , Xuan Zhang

Wireless minimally invasive bioelectronic implants enable a wide range of applications in healthcare, medicine, and scientific research. Magnetoelectric (ME) wireless power transfer (WPT) has emerged as a promising approach for powering…

Systems and Control · Electrical Eng. & Systems 2024-12-04 Zhanghao Yu , Yiwei Zou , Huan-Cheng Liao , Fatima Alrashdan , Ziyuan Wen , Joshua E Woods , Wei Wang , Jacob T Robinson , Kaiyuan Yang

This paper theoretically and experimentally investigates frequency-tuned and impedance-tuned wireless non-radiative power transfer (WNPT) systems. Closed-form expressions for the efficiencies of both systems, as a function of frequency and…

Other Computer Science · Computer Science 2015-01-23 Jason D. Heebl , Erin M. Thomas , Robert P. Penno , Anthony Grbic

In this paper, we present voltage- and current-mode differential magnetless non-reciprocal devices obtained by pairing two single-ended (SE) circulators, each consisting of three first-order bandpass or bandstop LC filters, connected in…

Signal Processing · Electrical Eng. & Systems 2018-08-10 Ahmed Kord , Dimitrios L. Sounas , Andrea Alù

Pulse position modulation (PPM) is a popular signal modulation technique which creates M-ary data by means of the position of a pulse within a time interval. While PPM and its variations have great advantages in many contexts, this type of…

Information Theory · Computer Science 2013-08-20 Yuichiro Fujiwara

We show that to lower the sampling rate in a spread spectrum communication system using Direct Sequence Spread Spectrum (DSSS), compressive signal processing can be applied to demodulate the received signal. This may lead to a decrease in…

Information Theory · Computer Science 2012-10-11 Karsten Fyhn , Thomas Arildsen , Torben Larsen , Søren Holdt Jensen

The objective of this research is to mitigate vibrations in induction motors. To achieve this goal, a discontinuous pulse width modulation (PWM) control strategy based on carrier wave modulation is proposed for multilevel inverters. This…

Systems and Control · Electrical Eng. & Systems 2024-01-31 A Ruiz-Gonzalez , JR Heredia-Larrubia , FM Perez-Hidalgo , M Meco-Gutierrez

Targeted energy transfer (TET) from a Van der Pol oscillator coupled to a nonlinear energy sink (NES) is investigated under the action of a high-frequency external drive, which tunes the effective natural stiffness and promotes resonance…

Chaotic Dynamics · Physics 2026-04-14 Somnath Roy , Mattia Coccolo , Sayan Gupta , Miguel A. F. Sanjuán

The temporal shape of a pulse in transcranial magnetic stimulation (TMS) influences which neuron populations are activated preferentially as well as the strength and even direction of neuromodulation effects. Furthermore, various pulse…

Medical Physics · Physics 2022-02-15 Z. Li , J. Zhang , A. V. Peterchev , S. M. Goetz

Recently, coherent digital subcarrier multiplexing (DSCM) technology has become an attractive solution for next-generation ultra-high-speed datacenter interconnects (DCIs). To meet the requirements of low-cost and low-power consumption in…

Signal Processing · Electrical Eng. & Systems 2024-07-16 Wei Wang , Dongdong Zou , Weihao Ni , Fan Li

Data-nulling superimposed pilot (DNSP) effectively alleviates the superimposed interference of superimposed training (ST)-based channel estimation (CE) in orthogonal frequency division multiplexing (OFDM) systems, while facing the…

Signal Processing · Electrical Eng. & Systems 2022-10-12 Chaojin Qing , Lei Dong , Li Wang , Guowei Ling , Jiafan Wang

We propose a nonlinear fiber system for shot-noise limited, all-optical intensity-noise reduction and signal amplification. The mechanism is based on the accumulation of different nonlinear phase shifts between orthogonal polarization modes…

Optics · Physics 2021-07-21 Marvin Edelmann , Yi Hua , Kemal Şafak , Franz X. Kärtner

In this paper, narrowband emitters have been designed using particle swarm optimization (PSO) in the 10-20 {\mu}m infrared range. The device structure consists of an anisotropic {\alpha}-MoO3 layer combined with the one- and two-dimensional…

A new, programmed pulse width modulation (PWM) technique to control power inverters, which uses a harmonic injection modulator and a frequency modulated triangular carrier, synchronized with the modulating signal is presented in this paper.…

Systems and Control · Electrical Eng. & Systems 2024-01-26 Antonio Ruiz-Gonzalez , Mario Meco-Gutierrez , Francisco Perez- Hidalgo , Francisco Vargas-Merino , JuanR Heredia-Larrubia

Using the waveforms from a digital electronic system, an offline analysis technique on pulse shape discrimination (PSD) has been developed to improve the neutron-gamma separation in a bar-shaped NE-213 scintillator that couples to a…

Target sound extraction (TSE) separates the target sound from the mixture signals based on provided clues. However, the performance of existing models significantly degrades under reverberant conditions. Inspired by auditory scene analysis…

Sound · Computer Science 2024-06-14 Yiwen Wang , Xihong Wu

A software-defined 2-bit Programmable Transmit Metamaterial (PTM) array surface with beam steering capabilities is proposed for indoor dynamic Wireless Power Transfer (DWPT) applications. The novel metamaterial unit cell structure is…

Signal Processing · Electrical Eng. & Systems 2024-08-29 Eistiak Ahamed , Rasool Keshavarz , Daniel Franklin , Negin Shariati

In recent years, the use of multilevel inverter has become popular due to its many advantages. Due to the popularity of multilevel inverters in industries and in applications that require a wide range of voltages, there have been many…

Systems and Control · Electrical Eng. & Systems 2021-04-27 Amirhossein Pourdadashnia , Milad Sadoughi , Mohammad Farhadi-Kangarlu , Behrouz Tousi