Wireless Power Transmissionand

Near Field Communication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 Proposed Design and Parametric Analysis

Near Field Communication Literature Review Proposed Design and Theoretical Analysis

Conclusions

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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

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Advantages of WPT Safety Flexibility Reliability

Operation Frequency 100 ~ 200 KHz (Short distance) 6.28 MHz and 13.56 MHz (Middle distance) 0.3~ 300 GHz (Long distance)

Why Transmit Power by Wireless Instead of Wire?

[1] Z. Yuwei, H. Xueliang, T. Linlin, B. Yang and Z. Jianhua, “ Current research situation and developing tendency

about wireless power transmission,” in Proc. 2010 Int. Conf. Electrical and Control Engineering, pp. 3507-3511.

[2] Wireless Power Consortium

(http://www.wirelesspowerconsortium.com).

[3] NFC Forum

(http://nfc-forum.org/).

[4] Alliance for Wireless Power

(http://www.rezence.com/).

[5] Y. J. Ren and K. Chang, “ 5.8-GHz circularly polarized dual-diode rectenna and rectenna array for microwave

power transmission,” IEEE Trans. Microw. Theory Tech., vol. 54, no. 4, 2006, pp. 1495-1502.

[6] C. H. Chin, Q. Xue and C. H. Chan, “ Design of a 5.8-GHz Rectenna Incorporating a New Patch Antenna,”

IEEE Antenna and Wireless Propagat. Letter, vol. 4, 2005, pp. 175-178.

[7] T. C. Yo, C. M. Lee, C. M. Hsu and C. H. Luo, “ Compact Circularly Polarized Rectenna With Unbalanced

Circular Slots,” IEEE Trans. Antennas and Propag., vol. 56, Mar. 2008, pp. 882-886.

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WPT for Short Distance (1/2)

Operation Frequency： 100 ~ 200 KHz Transmission Distance ： Less than 5 cm

IP

IS

Equivalent Circuit

�⃗�=− ∆ Φ∆ 𝑡

Faraday’s law

IP： Primary current

IS： Secondary currentH：Magnetic FieldSchematic

Diagram4/32

WPT for Short Distance (2/2)

Fixed Position Free 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

[1] Z. Yuwei, H. Xueliang, T. Linlin, B. Yang and Z. Jianhua, “ Current research situation and developing tendency

about wireless power transmission,” in Proc. 2010 Int. Conf. Electrical and Control Engineering, pp. 3507-3511.

[2] Wireless Power Consortium (http://www.wirelesspowerconsortium.com).

[3] NFC Forum (http://nfc-forum.org/).

[4] Alliance for Wireless Power (http://www.rezence.com/).

[5] Y. J. Ren and K. Chang, “ 5.8-GHz circularly polarized dual-diode rectenna and rectenna array for microwave

power transmission,” IEEE Trans. Microw. Theory Tech., vol. 54, no. 4, 2006, pp. 1495-1502.

[6] C. H. Chin, Q. Xue and C. H. Chan, “ Design of a 5.8-GHz Rectenna Incorporating a New Patch Antenna,”

IEEE Antenna and Wireless Propagat. Letter, vol. 4, 2005, pp. 175-178.

[7] T. C. Yo, C. M. Lee, C. M. Hsu and C. H. Luo, “ Compact Circularly Polarized Rectenna With Unbalanced

Circular Slots,” IEEE Trans. Antennas and Propag., vol. 56, Mar. 2008, pp. 882-886.

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[1] Z. Yuwei, H. Xueliang, T. Linlin, B. Yang and Z. Jianhua, “ Current research situation and developing tendency

about wireless power transmission,” in Proc. 2010 Int. Conf. Electrical and Control Engineering, pp. 3507-3511.

[2] Wireless Power Consortium (http://www.wirelesspowerconsortium.com).

[3] NFC Forum (http://nfc-forum.org/).

[4] Alliance for Wireless Power (http://www.rezence.com/).

[5] Y. J. Ren and K. Chang, “ 5.8-GHz circularly polarized dual-diode rectenna and rectenna array for microwave

power transmission,” IEEE Trans. Microw. Theory Tech., vol. 54, no. 4, 2006, pp. 1495-1502.

[6] C. H. Chin, Q. Xue and C. H. Chan, “ Design of a 5.8-GHz Rectenna Incorporating a New Patch Antenna,”

IEEE Antenna and Wireless Propagat. Letter, vol. 4, 2005, pp. 175-178.

[7] T. C. Yo, C. M. Lee, C. M. Hsu and C. H. Luo, “ Compact Circularly Polarized Rectenna With Unbalanced

Circular Slots,” IEEE Trans. Antennas and Propag., vol. 56, Mar. 2008, pp. 882-886.

Application of WPT for Short Distance

Nokia Lumia 920

Nexus 4

Samsung Galaxy S4

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WPT for Middle Distance (1/2)

Name of Organization：NFC Forum Operation Frequency： 13.56 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

WPT for Middle Distance (2/2)

Name of Organization： Alliance for Wireless

Power Operation Frequency： 13.56 MHz 、 6.28 MHz Output Power ： 20 ~ 50 W Charging Methods ： Magnetic Resonance Transmission Distance ： Less than 2 M

Magnetic Field

Current

Equivalent CircuitSchematic Diagram

[1] Z. Yuwei, H. Xueliang, T. Linlin, B. Yang and Z. Jianhua, “ Current research situation and developing tendency

about wireless power transmission,” in Proc. 2010 Int. Conf. Electrical and Control Engineering, pp. 3507-3511.

[2] Wireless Power Consortium (http://www.wirelesspowerconsortium.com).

[3] NFC Forum (http://nfc-forum.org/).

[4] Alliance for Wireless Power (http://www.rezence.com/).

[5] Y. J. Ren and K. Chang, “ 5.8-GHz circularly polarized dual-diode rectenna and rectenna array for microwave

power transmission,” IEEE Trans. Microw. Theory Tech., vol. 54, no. 4, 2006, pp. 1495-1502.

[6] C. H. Chin, Q. Xue and C. H. Chan, “ Design of a 5.8-GHz Rectenna Incorporating a New Patch Antenna,”

IEEE Antenna and Wireless Propagat. Letter, vol. 4, 2005, pp. 175-178.

[7] T. C. Yo, C. M. Lee, C. M. Hsu and C. H. Luo, “ Compact Circularly Polarized Rectenna With Unbalanced

Circular Slots,” IEEE Trans. Antennas and Propag., vol. 56, Mar. 2008, pp. 882-886.

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Application of WPT for Middle Distance

Nokia Lumia 920

Sony Z1

Phone Camera Lens

Phone Speaker

NFC

NFC

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WPT for Long distance

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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

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

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Efficiency Calculation for WPT

CE: Conversion Efficiency

𝜼𝑪𝑬=𝑷 𝑫𝑪

𝑷𝒊𝒏

𝑷 𝒊𝒏=𝑮𝒓 ∙𝑮𝒕 ∙𝝀𝟐

(𝟒𝝅𝒅 )𝟐𝑷𝒕𝜼𝒕=

𝑷 𝑫𝑪

𝑷 𝒕=𝑷𝒊𝒏

𝑷𝒕∙𝑷𝑫𝑪

𝑷 𝒊𝒏=𝑷 𝒊𝒏

𝑷 𝒕∙𝜼𝑪𝑬

Conversion Efficiency

Total Transmission Efficiency

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Block Diagram for Rectenna

For IL = 0.48 dBPo = 0.89 x Pi

Proposed Rectenna in currently research

𝐼𝐿=−10 log (𝑃𝑜

𝑃 𝑖)

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ZdZa Za = Zd for maximum power transfer

Pi Po

Literature Review for WPT (1/2) The new dual-diode rectenna can provide at least

twicethe dc output voltage than the traditional one

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Matching Network

[1] Z. Yuwei, H. Xueliang, T. Linlin, B. Yang and Z. Jianhua, “ Current research situation and developing tendency

about wireless power transmission,” in Proc. 2010 Int. Conf. Electrical and Control Engineering, pp. 3507-3511.

[2] Wireless Power Consortium (http://www.wirelesspowerconsortium.com).

[3] NFC Forum (http://nfc-forum.org/).

[4] Alliance for Wireless Power (http://www.rezence.com/).

[5] Y. J. Ren and K. Chang, “ 5.8-GHz circularly polarized dual-diode rectenna and rectenna array for microwave

power transmission,” IEEE Trans. Microw. Theory Tech., vol. 54, no. 4, 2006, pp. 1495-1502.

[6] C. H. Chin, Q. Xue and C. H. Chan, “ Design of a 5.8-GHz Rectenna Incorporating a New Patch Antenna,”

IEEE Antenna and Wireless Propagat. Letter, vol. 4, 2005, pp. 175-178.

[7] T. C. Yo, C. M. Lee, C. M. Hsu and C. H. Luo, “ Compact Circularly Polarized Rectenna With Unbalanced

Circular Slots,” IEEE Trans. Antennas and Propag., vol. 56, Mar. 2008, pp. 882-886.

Literature Review for WPT (2/2)Additional matching network is needed for better

power transformation3rd harmonic rejection filter will cause the additional loss

Proposed DCP Rectenna (1/3)

From View Bottom View

Side View

Proposed dual circularly polarized rectenna with high-order harmonic rejection property

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