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We investigate numerically the use of a negative-permeability "perfect lens" for enhancing wireless power transfer between two current carrying coils. The negative permeability slab serves to focus the flux generated in the source coil to…

Materials Science · Physics 2012-04-03 Da Huang , Yaroslav Urzhumov , David R. Smith , Koon Hoo Teo , Jinyun Zhang

To provide multimode sensory feedback and motion control, bidirectional bionic interfaces for advanced prosthetic systems require continuous and secure energy delivery to implantable electronics and integration in the sensing WBAN (Wireless…

This paper studies a cognitive or secondary multi-antenna wireless power transfer (WPT) system over a multi-carrier channel, which shares the same spectrum with a primary wireless information transfer (WIT) system that employs adaptive…

Information Theory · Computer Science 2019-03-22 Tianxin Feng , Ganggang Ma , Jie Xu

While wired-power-transfer devices ensure robust power delivery even if the receiver position or load impedance changes, achieving the robustness of wireless power transfer (WPT) is challenging. Conventional solutions are based on…

Applied Physics · Physics 2020-01-09 Fu Liu , Bhakti Chowkwale , Prasad Jayathurathnage , Sergei Tretyakov

State of the Art Wireless Power Transfer (WPT) systems, based on conventional copper coils, are known to exhibit efficiencies well above 90% when operated in the resonantly coupled mid-range regime. Besides full system efficiency, the area-…

Applied Physics · Physics 2021-02-01 Christoph Utschick , Cem Som , Ján Šouc , Veit Große , Fedor Gömöry , Rudolf Gross

Integrated photonics offers great potential for quantum communication devices in terms of complexity, robustness and scalability. Silicon photonics in particular is a leading platform for quantum photonic technologies, with further benefits…

We propose a power and data transfer network on a conductive fabric material based on an existing serial communication protocol, Inter-Integrated Circuit (I2C). We call the proposed network Inter-IC for Wearables (I2We). Continuous dc power…

Signal Processing · Electrical Eng. & Systems 2019-08-14 Akihito Noda , Hiroyuki Shinoda

The on-chip photonic switch is a critical building block for photonic integrated circuits (PICs) and the integration of phase change materials (PCMs) enables non-volatile switch designs that are compact, low-loss, and energy-efficient.…

Optics · Physics 2024-09-05 Khoi Phuong Dao , Juejun Hu , Richard Soref

A wide variety of coupled harmonic oscillators exist in nature1. Coupling between different oscillators allows for the possibility of mutual energy transfer between them2-4 and the information-signal propagation5,6. Low-energy input signals…

The use of wireless implant technology requires correct delivery of the vital physiological signs of the patient along with the energy management in power-constrained devices. Toward these goals, we present an augmentation protocol for the…

Information Theory · Computer Science 2016-11-15 Jamshid Abouei , J. David Brown , Konstantinos N. Plataniotis , Subbarayan Pasupathy

We consider a coupled mode system where the effective propagation constants of localized modes are amenable to modulation. Starting from an unmodulated system where power transfer is heavily suppressed, we demonstrate that small, periodic…

Optics · Physics 2020-11-11 B. Jaramillo-Ávila , B. M. Rodríguez-Lara

Conventional wireless power transfer systems are linear and time-invariant, which sets fundamental limitations on their performance, including a tradeoff between transfer efficiency and the level of transferred power. In this paper, we…

Applied Physics · Physics 2024-02-26 X. Wang , I. Krois , N. Ha-Van , M. S. Mirmoosa , P. Jayathurathnage , S. Hrabar , S. A. Tretyakov

Inductively coupled resonant circuits are affected by the so-called frequency splitting phenomenon at short distances. In the area of power electronics, tracking of one of the peak frequencies is state-of-the-art. In the data transmission…

Signal Processing · Electrical Eng. & Systems 2020-04-13 Peter A. Hoeher

This study evaluates the performance of a twisted pair transmission line coil as a transceive element for 7T MRI in terms of physical flexibility, robustness to shape deformations, and interelement decoupling. Each coil element was created…

Two-dimensional (2D) semiconductors are likely to dominate next-generation electronics due to their advantages in compactness and low power consumption. However, challenges such as high contact resistance and inefficient doping hinder their…

Materials Science · Physics 2024-10-11 Raagya Arora , Ariel R. Barr , Daniel T. Larson , Michele Pizzochero , Efthimios Kaxiras

With the increasing energy demand and the growing integration of renewable sources of energy, power systems face operational challenges such as overloads, losses, and stability concerns, particularly as networks operate near their capacity…

Systems and Control · Electrical Eng. & Systems 2025-07-21 Mohamad Charara , Martin De Montigny , Nivine Abou Daher , Hanane Dagdougui , Antoine Lesage-Landry

Despite significant advancements in wireless smart implants over the last two decades, current implantable devices still operate passively and require additional electronic modules for wireless transmission of the stored biological data. To…

The problem of joint transfer of information and energy for wireless links has been recently investigated in light of emerging applications such as RFID and body area networks. Specifically, recent work has shown that the additional…

Information Theory · Computer Science 2016-11-15 Ali Mohammad Fouladgar , Osvaldo Simeone

The paper aims at demonstrating communication capabilities of IPT. For this data communication is performed between two modules using the concept of IPT. IPT was deemed to be the best solution to the system houses a multi parameter…

Other Computer Science · Computer Science 2013-09-04 K. P. Shaji , I. Alsheba , Y. A. Syed Khadar , S. Kannan

We present a quantum heat switch based on coupled superconducting qubits, connected to two $LC$ resonators that are terminated by resistors providing two heat baths. To describe the system we use a standard second order master equation with…

Mesoscale and Nanoscale Physics · Physics 2017-03-31 B. Karimi , J. P. Pekola , M. Campisi , R. Fazio