Abstract
This study introduces a real and constant eigenfrequency in the higher-order PT-symmetric electronic systems that can be used to realize a robust wireless power transfer platform without hopping the frequency of operation.
Highlights
Radio-frequency (RF) wireless power transfer (WPT) has experienced a rapid and widespread growth in recent years, as driven by the rising demand for wireless charging in consumer electronics, medical devices, sensors, and automotive applications [1,2,3,4,5,6,7,8,9,10]
In late 1890s, Nikola Tesla conducted pioneering experiments with lighting electric bulbs wirelessly through electrodynamic induction [12]. His efforts appear to have met with little success, nowadays, considerable progress in WPT has been made in the realm of nonradiative transfer that employs the near-field magnetic coupling to efficiently transmit electrical energy from a power source to electrical loads [3]
While the WPT technology has motivated considerable research and development in the past two decades [13,14,15], there are still several fundamental issues which need further investigation to maximize the potential of this technology
Summary
Radio-frequency (RF) wireless power transfer (WPT) has experienced a rapid and widespread growth in recent years, as driven by the rising demand for wireless charging in consumer electronics, medical devices, sensors, and automotive applications [1,2,3,4,5,6,7,8,9,10]. A new WPT mechanism based on the concept of parity-time (PT) symmetry incorporating a nonlinear gainsaturation element has been projected to address this longexisting challenge [7] This system is engineered to have a subtle balance of energy flowing in (i.e., gain) and out (i.e., loss), and in its exact PT-symmetric phase, a nearly perfect transfer efficiency that is independent of the coupling strength can be achieved for the short-range operation. Higher-order PT-symmetric electronic systems in Fig. 1(a) exhibit a unique eigenspectral feature: a purely real eigenfrequency that is insensitive to variations in the coupling strength and the gain-loss parameter (related to the receiver’s load impedance) Such a property can ensure a transfer efficiency approaching 100% over a wide range of distances and misalignment levels, thereby offering an unprecedented robustness and freedom in wireless charging
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
