Two-Dimensional Wireless Power Supply to Ubiquitous Robots Using Microwaves
Hiroyuki Shinoda*1, Yasutoshi Makino*2, Naoshi Yamahira*3,
and Hiroto Itai*4
*1The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
*3JFE Steel Corporation
*4Cellcross Co. Ltd.
This paper proposes a wireless power supply method to ubiquitous small robots using microwaves propagated in a two-dimensional waveguide (2DW). A robot working anywhere on a 2DW sheet receives the power from the sheet. The communication signal is also transmitted through the identical sheet. The structure of 2DW sheet is simple and realized with various materials at low cost. Since the microwave power is confined inside the 2DW sheet, it enables safe power transmission and communication without strong interference with the space outside the sheet.
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