Year 2020

• Influence of Dielectric Overlay Dimensions on Performance of Miniaturized ESPAR Antenna

  Publication

  • M. Czeleń
  • M. Rzymowski
  • K. Nyka
  • Ł. Kulas

  - Year 2020

  In this paper, the influence of dielectric overlay size on miniaturized ESPAR antenna performance has been investigated. The dielectric overlay’s main function is antenna’s size reduction but it can also be used to modify its radiation pattern. This creates the possibility of easy adopting antenna parameters to different applications by swapping used overlay. In particular, the lowering of antenna’s main beam elevation direction...

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• Influence of Dielectric Overlay Permittivity on Size and Performance of Miniaturized ESPAR Antenna

  Publication

  • M. Czeleń
  • M. Rzymowski
  • K. Nyka
  • Ł. Kulas

  - Year 2020

  In this paper, influence of dielectric overlay permittivity on miniaturized ESPAR antenna parameters is presented. ESPAR antenna is a low-cost and energy-efficient way to implement beam steering capability to a node and improve network performance. The antenna size reduction is obtained by embedding its active and passive elements in ABS based materials of relative permittivity equal to 4, 5.5 and 7.5 in order to achieve network...

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• Miniaturization of ESPAR Antenna Using Low-Cost 3D Printing Process

  Publication

  • M. Czeleń
  • M. Rzymowski
  • K. Nyka
  • Ł. Kulas

  - Year 2020

  In this paper, the miniaturized electronically steerable parasitic array radiator (ESPAR) antenna is presented. The size reduction was obtained by embedding its active and passive elements in polylactic acid (PLA) plastic material commonly used in low-cost 3D printing. The influence of 3D printing process imperfections on the ESPAR antenna design is investigated and a simple yet effective method to compensate them has been proposed....

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