Adams, J.J.Slimmer, ScottBernhard, J.T.Lewis, Jennifer2017-07-202015Adams, J.J., S.C. Slimmer, J.T. Bernhard, and J.A. Lewis. 2015. “3D-Printed Spherical Dipole Antenna Integrated on Small RF Node.” Electronics Letters 51, no. 9: 661–662. doi:10.1049/el.2015.0256.0013-5194http://nrs.harvard.edu/urn-3:HUL.InstRepos:33471109New 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.en-USJournal Article2015-08-10Adams, JJ, SC Slimmer, JA Lewis, and JT Bernhard10.1049/el.2015.0256