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| Ref | Journal | Year | Frequency | Output power (mW) | Optimization method for inductor dimension | Transmitter dimension (mm) | Receiver dimension [mm] | Gap (mm) | (%) | Simulation model |
|
| [29] | IEEE Antennas and Wireless Propagation Letters | 2017 | 13.56 MHz (power) and 910 MHz (data) | | Frequency domain solver in CST MWS | doutT = 83.2
dinT = 59.6
Circular (CST MWS) | doutT = 24.2
dinT = 19.2
Circular (CST MWS) | 16 | 17% for power link | 2 mm skin, 2 mm fat, 7 mm bone, 50 mm tissue |
| [30] | IEEE Transactions on Power Electronics | 2015 | 800 KHz | 30e3 | Based on the method in [31] | doutT = 70
dinT = 34
Circular litz wire
Finite element (FE) | doutR = 70
dinR = 34
Circular litz wire (FE) | 20 | 95 | One layer of skin (performed its effect on simulation) |
| [32] | IEEE Transactions on Biomedical Circuits and Systems | 2015 | 200 MHz | 0.224 | Follow flow chart in the paper | doutT = 24
Printed hexagon (HFSS) | doutR = 1
Wire wound (HFSS) | 12 | 0.56 | Design was wrapped with a 10 mm thick layer of beef |
| [23] | Sensors | 2014 | 13.56 MHz | 150 | Based on the method in [24] | doutT = 56
dinT = 10
Printed spiral (Matlab, HFSS, FE & SEMCAD) | doutR = 11.6
dinR = 0.5
Printed spiral (Matlab, HFSS, FE & SEMCAD) | 6 | 32 to 80 | Three layers of 70 × 60 × 6 mm3, 1 mm skin, 2 mm fat, 3 mm muscle |
| [33] | IEEE Transactions on Industrial Electronics | 2014 | 8.1 MHz | 29.8 ~ 93.3 | Optimization has been done only for frequency | doutT = 30
Printed square (HFSS) | doutR = 20
Printed square (HFSS) | 12 ~ 20 | 47.6 to 65.4 | Various types of tissue including blood |
| [34] | “European Solid State Circuit Conference (ESSCIRC)” | 2013 | 160 MHz | >183 | Based on the method in [35, 36] | doutT = 14.5
Printed square (Momentum EM & HFSS) | doutT = 2.2
Printed square (Momentum EM & HFSS) | 10 | 0.8 | 7.5 mm of muscle layer, 2.5 mm air |
| [21] | IEEE Transactions on Circuits and Systems | 2013 | 13.56 MHz | 10 | Based on the method in [19] | 60 × 25
Printed rectangle (HFSS & CST EM) | 25 × 10
Printed rectangle (HFSS & CST EM) | 10 ~ 50 | 0.16 to 58.2 | Receiver sandwiched between two layers of pork tissues |
| [36] | IEEE Electron Device Letters | 2013 | 6.78 MHz | 10 | Based on the method in [37] | doutT = 20
Printed square (HFSS) | doutT = 4.5
Printed square (HFSS) | 5 and 12 | 30 and 4.3 | One layer of muscle tissue |
| [38] | IEEE Transactions on Biomedical Circuit and Systems | 2009 | 13.56 MHz | | Based on the method in [19] | doutT = 24
dinT = 9.4
Printed square (HFSS) | doutR = 10
dinR = 7.2
Printed square (HFSS) | 10 | 30.84 | Receiver sandwiched between two layers of muscle |
| [39] | IEEE Transactions on Biomedical Circuits and Systems | 2007 | 6.785 MHz | 1 ~ 10 | Follow flow chart in the paper | doutT = 30
Circular litz wire | doutR = 30
Circular litz wire | 1 ~ 10 | 51 to 74 | One layer of skin |
| [40] | IEEE Transactions on Circuits and Systems | 2005 | 1 MHz | 250 | Coil effective series resistance (ESR) formulations | doutT = 40
Circular litz wire | doutT = 22
Circular litz wire | 7 | 67 | A tissue through retinal prosthesis |
| [41] | IEEE Transactions on Circuits and Systems | 2005 | 1 MHz | >250 | | doutT = 40
dinT = 32
Disk | doutR = 22
dinR = 18
Disk | 7 and 15 | 33.3 to 65.8 | A tissue through retinal prosthesis |
| [42] | ELSEVIER Sensors and Actuators | 2004 | 700 KHz | 50 | Using a self-developed design tool and equations | doutT = 60
Pancake/disk (FastHenry and Matlab) | doutR = 20
Solenoid (FastHenry and Matlab) | 30 | 36 | One layer of skin |
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