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Analysis and fabrication of a wearable antenna using conductive fibers

전도성 실 재질을 이용한 웨어러블 안테나의 제작 및 분석

  • Received : 2015.01.14
  • Accepted : 2015.04.09
  • Published : 2015.04.30

Abstract

The development of efficient wearable antennas is required to implement short range body-centric wireless communication links for various internet of thing applications. We present simulation and measurement results of conductive-fiber-based wearable antennas which can comfortably fabricated directly on usual clothing materials. The proposed antenna is a form of a rectangular patch antenna designed by weaving conductive fibers on a felt substrate. A full-wave electromagnetic simulation tool is used to investigate the antenna performance such as antenna impedance, resonant frequency, and radiation efficiency. Parametric studies show that the radiation efficiency increases from 67.5% to 70.4% by widening the gap between conductive fibers from 0.25mm to 3mm. This implies a wearable antenna with good radiation efficiency can be designed despite of less portion of conductive fibers on the antenna. The simulation results are also verified by measured results with fabricated antennas.

Keywords

Antenna;conductive fiber;radiation efficiency;wearable antenna

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