Vol. 66

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Wireless Power Transfer at Sub-GHz Frequency for Capsule Endoscope

By Keke Ding, Ying Yu, Hong Lin, and Jingming Xie
Progress In Electromagnetics Research C, Vol. 66, 55-61, 2016


Wireless power transfer system to capsule endoscope at sub-gigahertz (GHz) frequency is presented. Compact self-resonant antennas are designed to realize the transcutaneous power transfer. Experiment shows that at a distance of 5 cm, the designed system operating at 433.9 MHz can realize 1.21% power transfer efficiency (PTE) through duck intestine and porcine multilayered tissues, that is, 47.55 mW power delivered to load (PDL) at the specific absorption rate (SAR) occupational exposure limitation.


Keke Ding, Ying Yu, Hong Lin, and Jingming Xie, "Wireless Power Transfer at Sub-GHz Frequency for Capsule Endoscope," Progress In Electromagnetics Research C, Vol. 66, 55-61, 2016.


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