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| Ref | Journal | Year | Frequency | Output power (mW) | Optimization method for the inductor dimension | Transmitter dimension (mm) | Receiver dimension (mm) | Gap (mm) | (%) | Simulation model |
|
| [32] | IEEE Transactions on Biomedical Circuits and Systems | 2015 | 200 MHz | 0.224 | Follow flow chart in the paper | doutT = 24
Printed hexagonal (HFSS) | doutR = 1
Wire wound (HFSS) | 12 | 1.02 | Air |
| [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 | 1.5 | Air |
| [43] | Hindawi: Active and Passive Electronic Components | 2012 | 211.9 KHz | 125 | Based on the method in [42] | | | 10 | 12.5 | Air |
| [44] | “Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS” | 2011 | 13.56 MHz | 27 | Based on the method in [19] | doutT = 27
dinT = 11
Printed spiral | 12 × 10
Rectangle
Wire wound litz | 7 | | Air, worn as a jacket on back of a rat |
| [45] | IEEE Transactions on Biomedical Circuits and Systems | 2011 | 13.56 MHz | 49.5 | Follow flow chart in the paper | 2 coil
doutT = 37
Printed spiral (HFSS) | 2 coil
doutR = 10
Printed spiral (HFSS) | 10 | 75.7 | Air |
| 43.4 | 3 coil
doutT = 43
Printed spiral (HFSS) | 3 coil
doutR = 10
Printed spiral (HFSS) | 78.6
3 coil |
| 3.9 | 4 coil
doutT = 36.5
Printed spiral (HFSS) | 4 coil
doutR = 10
Printed spiral (HFSS) | 83.5
4 coil |
| [25] | ELSEVIER: Procedia Engineering | 2011 | 1 MHz | 380 | | Area = 1000 mm2
Spiral litz wire | Area = 520 mm2
Spiral litz wire | 10 | 50 | Air |
| [20] | IEEE Transactions on Bio Circuits and Systems | 2011 | 700 KHz | 100 | Follow flow chart in the paper | doutT = 64
Spiral litz wire (Spice) | doutR = 22
Spiral litz wire (Spice) | 20 | 82 | Air |
| [46] | “2010 3rd International Symposium on Applied Science in Biomedical and Communication Technology” | 2010 | 27 MHz | 794 | Coil built based on [47], no optimization used | | doutR = 15
Square (CST MWS) | 15 | 80 | Air |
| [48] | IEEE Transactions on Circuits and Systems | 2010 | 13.56 MHz | 11.2 | Based on the method in [19] | doutT = 20
dinT = 10
Printed square | doutR = 10
dinR = 6
Printed square | 5 ~ 20 | 1 to 14.1 | Air |
| [49] | IEEE Transactions on Biomedical Circuits and Systems | 2010 | 13.56 MHz | | Based on the method in [19] | doutT = 79
dinT = 11.2
Printed square (HFSS) | doutR = 10
dinR = 2.96
Printed spiral (HFSS) | 10 | 56.65 | Air |
| [22] | “IEEE International Solid-StateCircuits Conference” | 2009 | 13.56 MHz | 7.05 | Based on the method in [19] | doutT = 168
Printed hexagon (HFSS) | doutR = 30
Wire wound solenoid (HFSS) | 70 | 80.2 | Air |
| [38] | IEEE Transaction Biomedical Circuit System | 2009 | 13.56 MHz | | Based on the method in [19] | doutT = 38
dinT = 14.9
Printed square (HFSS) | doutR = 10
dinR = 5.8
Printed square (HFSS) | 10 | 72.22 | Air |
| [24] | “2007 IEEE International Symposium on Circuits and Systems” | 2007 | 6.78 MHz | <100 | dinT ≈ 0.18doutT
dinR ≈ 0.75doutR | doutT = 52
dinT = 10
Printed spiral | doutR = 10
dinR = 5
Printed spiral | 15 | 10 to 20 | Air |
| [19] | IEEE Transactions on Circuits and Systems | 2007 | 1 MHz | | Follow flow chart in the paper | doutT = 69
dinT = 8
Printed square (HFSS) | doutR = 20
dinR = 8
Printed square (HFSS) | 10 | 41.2 | Air |
| 5 MHz | doutT = 70
dinT = 8
Printed square (HFSS) | doutR = 20
dinR = 8
Printed square (HFSS) | 85.8 |
| [50] | IEEE Transactions on Circuits and Systems | 2007 | 125 KHz | 125 | Based on the method in [51] | doutT = 36
dinT = 13
Spiral litz wire (FastHenry-2) | doutR = 26
dinR = 12
Spiral litz wire (FastHenry-2) | 10 | 50 | Air |
| 125 KHz | doutT = 64
dinT = 14
Spiral litz wire (FastHenry-2) | doutR = 22
dinR = 6
Spiral litz wire (FastHenry-2) | 18 | 50 |
| 500 KHz | doutT = 44
dinT = 14
Spiral litz wire (FastHenry-2) | doutR = 22
dinR = 7
Spiral litz wire (FastHenry-2) | 10 | 29.9 |
| [51] | IEEE Transactions on Biomedical Engineering | 1996 | 2 MHz | | dinT ≈ 0.4doutT | doutT = 24
dinT = 22.5
Spiral | doutR = 24
dinR = 22.5
Spiral | 1 ~ 25 | 5 to 90 | Air |
doutT = 15.86
dinT = 13.58
Spiral | doutR = 15.86
dinR = 13.58
Spiral |
doutT = 24
With 3.55 turn spiral | doutR = 24
With 3.55 turn spiral |
| [52, 53] | IEEE Transactions on Power Electronics | 1992 | 53 ~123 KHz | 48e3 | Based on the method in [54, 55] | Area = 37 mm2 | Area = 37 mm2 | 10 ~ 20 | 72 to 76 | Air |
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