Pereira, FelisbertoPinho, PedroGonçalves, RicardoCarvalho, NunoLobato, JoãoLopes, Sérgio I.2018-03-092018-03-092017-10PEREIRA, Felisberto; [et al] – Antenna design for ultra-compact Bluetooth devices. In International Symposium of IEEE-Antennas-and-Propagation-Society / USNC/URSI National Radio Science Meeting. San Diego, CA, USA: IEEE, 2017. ISBN 978-1-5386-3284-0. Pp. 2619-2620978-1-5386-3284-01522-3965http://hdl.handle.net/10400.21/8225This paper presents a solution for an ultra-compact antenna for small Bluetooth devices. The work considers the battery and the electronic components influence in the antenna design process for a real device, i.e. a Bluetooth tracker. Three different models for representing the battery and the main electronic components are studied: (i) a simple model that represents both battery and components by a ground plane; (ii) a model that represents the battery realistically and the components by a ground plane and (iii) a model that represents realistically both battery and components.engUltra-compact antennaBluetoothconference object10.1109/APUSNCURSINRSM.2017.8073352