A Wideband Metasurface Antenna with Dual-Band Dual-Mode for Body-Centric Communications

Guo Ping Gao, Hui Jia Meng, Wen Fei Geng, Zhi Heng Dou, Ben Kai Zhang, Bin Hu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

A wideband wearable metasurface antenna with dual-mode (on-body and off-body mode), dual-band, designed for the 2.45 and 5 GHz wireless body area network (WBAN), is proposed in this communication. The TM11 mode of the circular patch is used for the off-body mode in the 2.45 GHz WBAN band because of its broadside radiation pattern, meanwhile, the TM02 of the circular patch and metasurface mode are chosen for on-body mode due to their omnidirectional radiation pattern in the second band. A shorting pin is used to tune these modes to the desired operating frequencies and using polydimethylsiloxane (PDMS) makes the antenna easier to be integrated into wearable devices. The prototype is fabricated, and a good performance is realized with a measured S11 <-10 dB functional bandwidth of 4.9% and 15.7% which can cover the 2.45 and 5 GHz WBAN band, respectively. Moreover, the measured peak gain achieves 5.5 dBi for off-body mode and 5.3 dBi for on-body mode, as well as the specific absorption rate values are lower than the limitation standards of U.S. and Europe throughout the operating band. The acquired performance demonstrates that the proposed antenna has a great potential in the wearable applications.

Original languageEnglish
Pages (from-to)149-153
Number of pages5
JournalIEEE Antennas and Wireless Propagation Letters
Volume21
Issue number1
DOIs
Publication statusPublished - 1 Jan 2022
Externally publishedYes

Keywords

  • Dual-band
  • Dual-mode
  • Metasurface
  • Wide bandwidth
  • Wireless body area network (WBAN)

Fingerprint

Dive into the research topics of 'A Wideband Metasurface Antenna with Dual-Band Dual-Mode for Body-Centric Communications'. Together they form a unique fingerprint.

Cite this