Projects per year
Abstract
Smartwatch is a potential candidate for the Internet of Things (IoT) hub. However, the performance of smartwatch antennas is severely restricted by the smartwatch structure, especially when the antennas are designed by traditional methods. For adapting smartwatches to the role of IoT hub, a novel method of designing multi-band smartwatch antenna is presented in this paper, aiming at increasing the number of frequency bands, omnidirectivity, and structural suitability. First, the fundamental structure (including the full screen and the system PCB) of the smartwatch is analyzed as a whole by characteristic mode analysis (CMA). Thus, abundant resources of characteristic modes are introduced. The fundamental structure is then modified as the radiator of a multiband antenna. Then, a non-radiating capacitive coupling element (CCE) excites the desired four 0.5λ modes from this structure. This method could fully utilize the intrinsic modes of the smartwatch structure itself, thus exhibits multiple advantages: significantly small size, smaller ground, omni-directional radiation, and fitting to the full-screen smartwatch structure.
| Original language | English |
|---|---|
| Pages (from-to) | 17724-17733 |
| Journal | IEEE Internet of Things Journal |
| Volume | 8 |
| Issue number | 24 |
| Online published | 21 May 2021 |
| DOIs | |
| Publication status | Published - 15 Dec 2021 |
Research Keywords
- 5G
- Antenna radiation patterns
- Antennas
- GPS
- Internet of Things
- Metals
- Monitoring
- omni-directional
- quad-band
- screen antenna
- Smart phones
- theory of characteristic modes (TCM)
- Wireless LAN
RGC Funding Information
- RGC-funded
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Dive into the research topics of 'Design of Small Multiband Full-screen Smartwatch Antenna for IoT applications'. Together they form a unique fingerprint.Projects
- 2 Finished
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CRF: High-Resolution Antenna Measurement System with Robotic Arms for Millimeter-wave Frequencies
WONG, H. (Principal Investigator / Project Coordinator), CHAN, C. H. (Co-Principal Investigator), CHAN, H. M. (Co-Principal Investigator), Jiang, L. (Co-Principal Investigator), LEE, J.E.-Y. (Co-Principal Investigator), LUK, K. M. (Co-Principal Investigator) & WONG, M. H. A. (Co-Principal Investigator)
1/03/20 → 23/04/24
Project: Research
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TBRS: A Compact System for Terahertz Imaging and Spectroscopy
CHAN, C. H. (Principal Investigator / Project Coordinator), LO, K. W. K. (Co-Principal Investigator), LUK, K. M. (Co-Principal Investigator), PUN, Y. B. E. (Co-Principal Investigator), Pang, S. (Co-Principal Investigator), SHAW, J. (Co-Principal Investigator), VELLAISAMY, A. L. R. (Co-Principal Investigator), CHAN, S. C. (Co-Investigator), DECROZE, C. (Co-Investigator), HO, J. C. Y. (Co-Investigator), JARRAHI, M. (Co-Investigator), LAM, Y. W. (Co-Investigator), LEE, E.-Y. J. (Co-Investigator), LEE, N. P. Y. (Co-Investigator), LEUNG, K. W. (Co-Investigator), LIU, H. (Co-Investigator), QU, S. (Co-Investigator), RENAUD, C. (Co-Investigator), Tong, K. (Co-Investigator), WANG, C. (Co-Investigator), WONG, H. (Co-Investigator), WONG, C. Y. A. (Co-Investigator), WONG, M. H. A. (Co-Investigator) & Wong, K. K. Y. (Co-Investigator)
1/01/17 → 30/06/23
Project: Research
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