Abstract
This paper presents radiation pattern reconfigurable antenna for Fitbit Flex wristband which detects vital signal. Also, the paper presents Specific Absorption Rate (SAR) from the loop-dipole radiation pattern reconfigurable antenna based on the position of human body. The proposed loop-dipole radiation pattern reconfigurable antenna produces two opposite side direction radiation pattern using two RF switches. The resonant frequency of the radiation pattern reconfigurable antenna is Bluetooth communication bandwidth (2.4 - 2.485 GHz) and the maximum gain of the proposed antenna is 1.96 dBi. The proposed antenna satisfied the standard SAR value of 1.6 W/kg in 1 g tissue of the human body when the Bluetooth communication input average power of 0.04 W is excited to five parts of human body (head, chest, stomach, back, wrist). The maximum SAR value of in this simulation is presented in the part of head.
| Translated title of the contribution | Design of Radiation Pattern Reconfigurable Antenna for Vital Signal Sensing Device Attached on Wristband and SAR Analysis on Human body |
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| Original language | Korean |
| Pages (from-to) | 666-670 |
| Number of pages | 5 |
| Journal | 한국산학기술학회논문지 |
| Volume | 16 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2015 |