Slot antenna for all-metal smartwatch applications

  • Di Wu
  • , S. W. Cheung
  • , Q. L. Li
  • , T. I. Yuk

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

30 Scopus citations

Abstract

A circular slot-antenna designed for uses in smartwatches with all-metal for 2.4G BT/WIFI applications is presented in this paper. The model of smartwatch used for studies has a housing and wristband, both made of metal only. The smartwatch housing has a cylindrical shape with a circular-surface area of π×232 mm2 and a height of 10 mm, occupying a total volume of π×232×10 mm3. The circular slot antenna is formed using an arc-shaped slot with a length of 97 mm and a width of 1 mm along the edge of the circular surface of the smartwatch housing. Computer simulation is used to study the performance of the slot antenna in free space and on a phantom hand. Results of studies show that the slot antenna has the impedance frequency bands of 2.4-2.55 GHz and 2.35-2.5 GHz in free space and on the phantom hand, respectively, to cover the 2.4G BT/WIFI system. The efficiency of the antenna can reach more than 65% even on the phantom hand, making the slot antenna a suitable candidate for all-metal smartwatch applications.

Original languageEnglish
Title of host publication2016 10th European Conference on Antennas and Propagation, EuCAP 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9788890701863
DOIs
StatePublished - 31 May 2016
Externally publishedYes
Event10th European Conference on Antennas and Propagation, EuCAP 2016 - Davos, Switzerland
Duration: 10 Apr 201615 Apr 2016

Publication series

Name2016 10th European Conference on Antennas and Propagation, EuCAP 2016

Conference

Conference10th European Conference on Antennas and Propagation, EuCAP 2016
Country/TerritorySwitzerland
CityDavos
Period10/04/1615/04/16

Keywords

  • BT/WIFI antenna
  • all-metal smartwatch
  • phantom hand effects
  • slot antenna

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