Abstract
A wearable circular ring slot antenna with electromagnetic bandgap (EBG) structure for wireless body area network application is proposed in this letter. According to the analysis of equivalent circuit model, the volume of the EBG element is miniaturized for wearable applications. The measured impedance bandwidth of the proposed antenna is observed to be 2.28-2.64 GHz, which covers the 2.4 GHz Industrial Scientific Medical (ISM) band. The measured half-power beamwidths are 60° and 54° in the H-plane and the E-plane, respectively, and the front-to-back ratios are 17 and 13 dB in the H-plane and the E-plane, respectively. The specific absorption rate calculated values for tissue in 1 g (for the U.S. standard) and 10 g (for Europe standard) are both less than the limitations. In conclusion, it is proper to use the proposed antenna in wearable applications.
| Original language | English |
|---|---|
| Pages (from-to) | 434-437 |
| Number of pages | 4 |
| Journal | IEEE Antennas and Wireless Propagation Letters |
| Volume | 17 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Mar 2018 |
| Externally published | Yes |
Keywords
- Electromagnetic bandgap (EBG) structure
- specific absorption rate (SAR)
- wearable antenna
- wireless body area network (WBAN)