Bluetooth antenna for metal-cased smart jewellery

Research output: Contribution to journalLetterScientificpeer-review


Research units

  • Aalto University
  • Chalmers University of Technology


This Letter presents a Bluetooth antenna for metal-cased smart jewellery. The designed antenna is competent enough to operate in free space; moreover, antenna performance is investigated with cubical shape model which has the electrical properties similar to human body tissue. The measured prototype achieves 68% total efficiency in the free space and 27% total efficiency when measured with a cubical model in the Bluetooth frequency range of 2.4–2.48 GHz.


Original languageEnglish
Pages (from-to)115-117
Number of pages3
JournalElectronics Letters
Issue number3
Early online date31 Oct 2019
Publication statusPublished - 6 Feb 2020
MoE publication typeA1 Journal article-refereed

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