Optimal Sizing of RF Integrated Inductors for Power Transfer of Implantable Biosensors †
Abstract
:1. Introduction
2. Materials and Methods
2.1. Physical Model of Spiral Inductor
2.1.1. Equivalent Model
- Coupling capacity between the coils:
- Parasitic capacitance:
- Capacity of substrates:
- Resistance of the substrate:
2.1.2. Inductance Ls
2.1.3. Factor of Quality-Q
2.2. Differential Evolutionary Algorithm (DE)
Objective Function
- Maximize the quality factor Q which depends on the geometrical parameters of the inductor (N, W, S);
- We will introduce the cost function Qreq = 1/Q, it represents the desired quality factor, so the problem is transformed towards a minimization of Qreq, in order to maximize the quality factor Q;
- All this will be done by the following constraints that must be satisfied:
3. Results
4. Discussion
References
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Geometry | β | α1 | α2 | α3 | α4 | α5 |
---|---|---|---|---|---|---|
Octagonal | −1.21 | −0.163 | 2.43 | 1.75 | −0.049 |
S (µm) | w (µm) | N | Dout (µm) | Lsreq (nH) | LDE (nH) | QDE |
---|---|---|---|---|---|---|
4.56 | 13.62 | 3.21 | 223 | 4 | 3.95 | 13.46 |
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Sabiri, I.; Bouyghf, H.; Raihani, A. Optimal Sizing of RF Integrated Inductors for Power Transfer of Implantable Biosensors. Proceedings 2020, 60, 30. https://doi.org/10.3390/IECB2020-07053
Sabiri I, Bouyghf H, Raihani A. Optimal Sizing of RF Integrated Inductors for Power Transfer of Implantable Biosensors. Proceedings. 2020; 60(1):30. https://doi.org/10.3390/IECB2020-07053
Chicago/Turabian StyleSabiri, Issa, Hamid Bouyghf, and Abdelhadi Raihani. 2020. "Optimal Sizing of RF Integrated Inductors for Power Transfer of Implantable Biosensors" Proceedings 60, no. 1: 30. https://doi.org/10.3390/IECB2020-07053
APA StyleSabiri, I., Bouyghf, H., & Raihani, A. (2020). Optimal Sizing of RF Integrated Inductors for Power Transfer of Implantable Biosensors. Proceedings, 60(1), 30. https://doi.org/10.3390/IECB2020-07053