Contactless coupler for 2D communication tile connection

For applying two-dimensional communication (2DC) technology to the entire floor of a room, the concept of 2DC tile have been proposed. In terms of fabrication, delivery, and implementation, the floor should be covered with multiple pieces of 2DC sheets as small as typical carpet tiles. In this paper, we propose a contactless coupler for signal transmission between adjacent 2DC tiles without any electrical contacts. The simulation and measurement results show that the proposed coupler is sufficiently tolerant of positioning error between a pair of couplers.