Numerical study on left-handed transmissions line incorporated inside large area flooring tiles for RFID signal transmission

Yasuaki Monnai, Yasutoshi Makino, Hiroyuki Shinoda

Research output: Contribution to journalArticle

Abstract

We propose an RFID signal transmission scheme that uses flooring tiles as a transmission medium. The method enables delivering RFID signals through a chain of flooring tiles patched together without electrical contact, thus easily extendable into a large scale. Potential applications include human flow monitoring in a large indoor situation by reading signals from numbers of distributed detectors labeled by RFID. In this paper, as a first step toward that goal, we focus on discussing the implementation of flooring tiles that can transmit signals at 13.56 MHz without electrical contact. To establish such transmission, we use a technique known as left-handed transmission, which is characterized by distributed series capacitance and shunt inductance. Here we present theoretical and numerical analysis to design such a system. Direct electromagnetic wave simulation of a realistic model reveals low-loss transmission of 0.23 dB/m at around 13 MHz.

Original languageEnglish
Pages (from-to)283-288
Number of pages6
JournalIEEJ Transactions on Sensors and Micromachines
Volume136
Issue number7
DOIs
Publication statusPublished - 2016

Keywords

  • Left-handed transmission lines
  • Non-contact coupling
  • RFID
  • Sensor network

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering

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