Brandon White Advisor: Dr. Prasad Shastry. Project Application Project Overview Literature Review Block Diagram Project Design Simulation Results Test.

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Presentation transcript:

Brandon White Advisor: Dr. Prasad Shastry

Project Application Project Overview Literature Review Block Diagram Project Design Simulation Results Test Results Conclusions 2

 Near-field wireless power transfer systems currently in use  Industry working towards far-field wireless power transfer systems 3

4 Convert radio frequency (RF) signal to direct current (DC) power Functions in the FCC regulated ISM band that includes 5.8GHz Output will be DC with minimal ripple Maximize efficiency Minimize size

5 Fig 1. Efficiency of Full-Wave Rectifiers vs Input Power [1]

6 Fig 2. Four Diode full-wave rectifier

7 Fig 3. Two Diode full-wave rectifier

 Not new concept  High gain antennas  Efficiency expectations 8

9 Fig 4. System Block Diagram

10 Harmonic Suppression Diode Balun DC Bypass Filter Fig 5. RF to DC converter

11 Fig 6. ADS Schematic Design of RF to DC Converter

12 Fig 7. ADS Schematic Design of Impedance Matching Network

13 Fig 8. Second Order Harmonic Suppression Fig 9. Third Order Harmonic Suppression

 HSMS-2860 Schotky detector diode  Discovered in research  Pspice file  Worked perfectly 14

15 Fig 10. ADS Schematic Design of Balun

16 Fig 11. ADS Design of Output Microstrip Spacing

17 Fig 12. Schematic BendFig 13. Schematic Tee Junction

18 Fig 14. Reflection CoefficientFig 15. Real Impedance

19 Fig 16. Efficiency of System in ADS Simulation

20 Fig 17. Simulated Output Voltage Waveform

21 Fig 18. Reflection CoefficientFig 19. Real Impedance

22 Fig 20. Efficiency of System in ADS Simulation

23 Fig 21. Output Voltage Waveform of ADS Simulations (Scale in mV)

24 System Output Fig 22. Oscilloscope voltage reading

25 Fig 24. Output Signal Frequency Power dBm Fig 23. Input Signal Frequency Power 7.13 dBm

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 Unmatched has great preliminary results  Design is very compact  Design is efficient  Design gives DC output with minimal ripple 28

 Increase efficiency  Decrease size  Design to function at different frequencies (2.45 GHz 915 MHz)  Work towards marketable product 29

 Chris Mattus  Nick Schmidt  Bob Modica 30

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 [1] A. Boaventura, A. Collado, N.B. Carvalho, and A Georgiadis, "Optimum Behavior" in IEEE Microwave Mag., vol. 14, no. 4, pp ,  [2] Z. Popovic, "Cut the Cord" in IEEE Microwave Mag., vol. 14, no. 4, pp , 2013  [3] J. Zbitou, M. Latach, and S. Toutain, "Hybrid Rectenna and Monolithic Integrated Zero-Bias Microwave Rectifier" in IEEE Transactions on Microwave Theory and Techniques, vol. 54, no. 1, pp ,

 HSMS 2860 Schottky Detector Diode  Premiertek n 2.4GHz/5~5.8GHz Dual Band 5dBi Antenna  Antenna, 5.8 GHz 19 dBi gain  Sunhans wifi signal booster 33

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