3D-printed spherical dipole antenna integrated on small RF node

J.J. Adams; S.C. Slimmer; J.A. Lewis; J.T. Bernhard

3D-printed spherical dipole antenna integrated on small RF node

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Author(s): J.J. Adams ¹ ; S.C. Slimmer ² ; J.A. Lewis ² ; J.T. Bernhard ³
- Affiliations: 1: Department of Electrical and Computer Engineering, North Carolina State University, Raleigh, NC, USA;
  2: School of Engineering and Applied Sciences, Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA, USA;
  3: Department of Electrical and Computer Engineering, University of Illinois, Urbana, IL, USA
Source: Volume 51, Issue 9, 30 April 2015, p. 661 – 662
DOI: 10.1049/el.2015.0256 , Print ISSN 0013-5194, Online ISSN 1350-911X

Received 17/02/2015, Published 16/04/2015

New three-dimensional (3D) printing techniques enable the integration of an antenna directly onto the package of a small wireless sensor node. This volume-filling approach ensures near-optimal bandwidth performance of the small antenna, increasing a system's battery life, data rate or range. Simulated results show that the fabricated spherical antenna's bandwidth-efficiency product is more than half of the fundamental limit and radiation pattern measurements exhibit a dipole pattern with −0.7 dBi gain.

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3D-printed spherical dipole antenna integrated on small RF node

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