From: Energy harvesting for the implantable biomedical devices: issues and challenges
Coil shape | Tx-Coil (mm) | Rx-Coil (mm) | Carrier frequency (MHz) | Distance (mm) | Modulation technique | Application | References |
---|---|---|---|---|---|---|---|
Circular | - | (5 × 8 × 2) | 4 | 5 | Downlink-ASK Uplink-LSK | Neural recording system | [84] 1998 |
Circular | 50 | 20 | 4 | 28 | - | EEG signal detection | [57] 2005 |
Tx-solenoid Rx-Cylinder | din = 410 | 10 × 13 | 1 | 205 | - | endoscopy | [72] 2006 |
L = 300 | |||||||
Spiral pancake | dout = 52 | dout = 10 | 6.78 | 10 | ASK | brine | [67] 2007 |
din = 10 | din = 5 | ||||||
Tx-spiral coil Rx-rectangular | dout = 44 | 4 × 8 | 13.56 | 40 | LSK | Subcutaneous tissue | [85] 2009 |
Square | (2 × 2) cm2 | (2 × 2) mm2 | 915 | 15 | _ |  | [86] 2009 |
Spiral rectangular | 62 × 25 | 25 × 10 | 13.56 | 10 | ASK | Implanted micro-system | [87] 2011 |
Spiral square | 70 × 8 | 20 × 8 | 1-5 | 10 | ASK |  | [88] 2012 |
Circular | dout = 38 | dout = 18 | 742 KHz | 10 | _ | Neural recording system | [89] 2012 |
din = 36 | din = 16 | ||||||
Spiral circular | dout = 56 | dout = 11.6 | 13.56 | 22 | ASK | Nerves and muscles stimulator | [91] 2014 |
din = 10 | din = 5 |