8 papers
Hierarchical resonators for localized charging in room-scale magnetoquasistatic wireless power systems
Takuya Sasatani, Alanson P. Sample, Yoshihiro Kawahara
Magnetoquasistatic wireless power transfer can deliver substantial power to mobile devices over near-field links. Room-scale implementations, such as quasistatic cavity resonators,…
Patched-Wall Quasistatic Cavity Resonators for 3-D Wireless Power Transfer
Takuya Sasatani, Yoshihiro Kawahara
Traditional wireless power transfer (WPT) systems are largely limited to 1-D charging pads or 2-D charging surfaces and therefore do not support a truly ubiquitous device-powering…
A Passive Elastic-Folding Mechanism for Stackable Airdrop Sensors
Damyon Kim, Yuichi Honjo, Tatsuya Iizuka +6
Air-dispersed sensor networks deployed from aerial robotic systems (e.g., UAVs) provide a low-cost approach to wide-area environmental monitoring. However, existing methods often r…
Magnetic field estimation using Gaussian process regression for interactive wireless power system design
Yuichi Honjo, Cedric Caremel, Ken Takaki +3
Wireless power transfer (WPT) with coupled resonators offers a promising solution for the seamless powering of electronic devices. Interactive design approaches that visualize the…
Full-body NFC: body-scale near-field sensor networks with machine-knittable meandered e-textiles
Ryo Takahashi, Changyo Han, Wakako Yukita +6
Wireless body networks comprising battery-free on-body sensors and textile-based wireless readers can enable daily health monitoring and activity tracking by continuously monitorin…
Passive Reactance Compensation for Shape-Reconfigurable Wireless Power Transfer Surfaces
Riku Kobayashi, Yoshihiro Kawahara, Takuya Sasatani
The powering range of wireless power transfer (WPT) systems is typically confined to areas close to the transmitter. Shape-reconfigurable two-dimensional (2-D) relay resonator arra…