FDTD Analysis on WPT Efficiency Between Circuit-Shape Leaky Waveguide and 𝝀/2 Dipole Antenna for Snow Melting Application

Authors

  • Yusho Kanaya National Institute of Technology, Hakodate College, Japan
  • Masashi Nakatsugawa National Institute of Technology, Hakodate College, Japan
  • Tamami Maruyama National Institute of Technology, Hakodate College, Japan
  • Manabu Omiya Hokkaido University, Japan
  • Yasuhiro Tamayama Nagaoka University of Technology, Japan

DOI:

https://doi.org/10.11113/elektrika.v21n2.409

Abstract

The wireless transfer characteristics between a circuit-shape leaky waveguide and a /2 dipole antenna were analyzed with scattering parameters obtained with the FDTD method. The circuit-shaped leaky waveguide was composed of two pairs of straight slotted waveguides and two semicircular waveguides. The circuit-shape leaky waveguide was designed to achieve uniform electromagnetic field distribution with a source for snow melting with microwave radiations by microwave heating. The electromagnetic field of the circuit-shape leaky waveguide was firstly simulated with the FDTD method. Although the electromagnetic distribution exhibited the point symmetry with an off-set feeding point and a slot spacing 𝝀𝒈, it was nearly uniform. The wireless transfer efficiency and the maximum transfer efficiency for four locations at 2.45 GHz revealed that the farthest location from the feeding point had the largest WPT efficiency among four locations. This ensures the circuit-shape leaky waveguide’s uniqueness. The circuit-shape leaky waveguide has favorable characteristics to provide WPT energy at any location above it.

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Published

2022-09-01

How to Cite

Kanaya, Y., Nakatsugawa, M. ., Maruyama, T. ., Omiya, M., & Tamayama, Y. . (2022). FDTD Analysis on WPT Efficiency Between Circuit-Shape Leaky Waveguide and 𝝀/2 Dipole Antenna for Snow Melting Application. ELEKTRIKA- Journal of Electrical Engineering, 21(2), 82–85. https://doi.org/10.11113/elektrika.v21n2.409

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