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國立台北科技大學 電子工程系 林丁丙 教授. Outline Introduction Wireless Power Transmission (WPT) Near Field Communication (NFC) Wireless Power Transmission Literature Review.

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Presentation on theme: "國立台北科技大學 電子工程系 林丁丙 教授. Outline Introduction Wireless Power Transmission (WPT) Near Field Communication (NFC) Wireless Power Transmission Literature Review."— Presentation transcript:

1 國立台北科技大學 電子工程系 林丁丙 教授

2 Outline Introduction Wireless Power Transmission (WPT) Near Field Communication (NFC) Wireless Power Transmission Literature Review Proposed Design and Parametric Analysis Near Field Communication Literature Review Proposed Design and Theoretical Analysis Conclusions 1/32

3 Outline Introduction Wireless Power Transmission (WPT) Near Field Communication (NFC) Wireless Power Transmission Literature Review Proposed Design and Parametric Analysis Near Field Communication Literature Review Proposed Design and Theoretical Analysis Conclusion 2/32

4 Advantages of WPT Safety Flexibility Reliability Operation Frequency 100 ~ 200 KHz (Short distance) 6.28 MHz and MHz (Middle distance) 0.3~ 300 GHz (Long distance) Why Transmit Power by Wireless Instead of Wire? 3/32

5 WPT for Short Distance (1/2) Operation Frequency : 100 ~ 200 KHz Transmission Distance : Less than 5 cm IPIP ISIS Equivalent Circuit Faraday’s law I P : Primary current I S : Secondary current H : Magnetic Field Schematic Diagram 4/32

6 WPT for Short Distance (2/2) Fixed PositionFree Position (Moving Coil) Free Position (Array Coil) Name of Organization : Wireless Power Consortium Operation Frequency : 100 ~ 200 KHz Output Power : 5 ~ 15 W Charging Methods : Magnetic Field Coupling 5/32

7 Application of WPT for Short Distance Nokia Lumia 920 Nexus 4 Samsung Galaxy S4 6/32

8 WPT for Middle Distance (1/2) Name of Organization : NFC Forum Operation Frequency : MHz Output Power : Less than 5 W Charging Methods : Magnetic Field Coupling Transmission Distance : Less than 50 cm Schematic Diagram NFC Antenna NFC Antenna of New HTC One 7/32

9 WPT for Middle Distance (2/2) Name of Organization : Alliance for Wireless Power Operation Frequency : MHz 、 6.28 MHz Output Power : 20 ~ 50 W Charging Methods : Magnetic Resonance Transmission Distance : Less than 2 M Magnetic Field Current Equivalent Circuit Schematic Diagram 8/32

10 Application of WPT for Middle Distance Nokia Lumia 920 Sony Z1 PhoneCamera Lens Phone Speaker NFC 9/32

11 WPT for Long distance 10/32 Operation Frequency : 0.3 ~ 300 GHz Output Power : Less than 0.5 W Charging Methods : Microwave Transmission Distance : More than 2 M Schematic Diagram of Microwave Wireless Power Transmission

12 Outline Introduction Wireless Power Transmission (WPT) Near Field Communication (NFC) Wireless Power Transmission Literature Review Proposed Design and Parametric Analysis Near Field Communication Literature Review Proposed Design and Theoretical Analysis Conclusion 11/32

13 Efficiency Calculation for WPT CE: Conversion Efficiency Conversion Efficiency Total Transmission Efficiency 12/32

14 Block Diagram for Rectenna For IL = 0.48 dB P o = 0.89 x P i Proposed Rectenna in currently research 13/32 ZdZd ZaZa Z a = Z d for maximum power transfer PiPi PoPo

15 Literature Review for WPT (1/2) The new dual-diode rectenna can provide at least twice the dc output voltage than the traditional one 14/32

16 15/32 Matching Network Literature Review for WPT (2/2) Additional matching network is needed for better power transformation 3 rd harmonic rejection filter will cause the additional loss

17 Proposed DCP Rectenna (1/3) From View Bottom View Side View Proposed dual circularly polarized rectenna with high-order harmonic rejection property 16/32


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