(Downloads - 0)
For more info about our services contact : help@bestpfe.com
Table of contents
Introduction
State of the art
1.1 Solutions of energy harvesting
1.1.1 Ambient energy harvesting
1.1.2 Promising frequencies for ambient RF energy harvesting
Limitation standard
Available power densities
1.2 Rectenna structures for ambient RF energy harvesting
1.2.1 Techniques to increase RF-to-DC conversion efficiency of rectenna
Nonlinear device choices
Circuit topologies choices
Harmonic termination techniques
Impedance matching
1.2.2 Techniques to increase the harvested power
Combining techniques
Single-frequency: Multiple antennas in RF-combiner configuration
Single-frequency: Multiple antennas in DC-combiner configuration
Single-frequency: Multi-input of an antenna in DC-combiner configuration
Multi-frequency: Multiple single-band antennas and single-tone rectifiers
Multi-frequency: Wideband/Multiband antenna and single-tone rectifiers
Multi-frequency: Wideband/Multiband antenna and multi-tone rectifier
1.3 Flexible antenna in energy harvesting system
1.3.1 Antenna using flexible material
Textile material
Paper-based and polymer-based material
1.3.2 Techniques to increase realized gain of flexible antenna
1.3.3 Integration of flexible antenna in energy harvesting system
1.4 Conclusion
Antenna
2.1 Requirements of antenna for ambient energy harvesting
2.2 3D flexible multi-band antenna
2.2.1 Dipole-based antenna
Antenna Configuration
Simulation and measurement results
Applying for printed antenna on flexible substrate
2.2.2 Coplanar-based antenna
Antenna configuration
Bending and folding analysis
Fabrication and measurement
Conclusion
2.3 Technique to overcome high-loss substrate
2.3.1 Design and characterization of suspended patch antenna
Paper substrate characteristics
Antenna configuration
2.3.2 Simulation and measurement results
2.3.3 Applying for flexible multi-band antenna with suspended ground
Antenna configuration
Simulation and measurements
2.4 Adjustable frequency antenna using flexible substrate
2.4.1 Antenna configuration
2.4.2 Simulation and measurement results
2.4.3 Conclusion
2.5 High gain flexible antenna
2.5.1 Target of design
2.5.2 Antenna configuration
2.5.3 Fabrication and measurement
2.6 Conclusion
Rectifier
3.1 Diode modeling
3.1.1 Diode characterization
Parameters of a Schottky diode
Parameter extraction of equivalent circuit model
3.1.2 Measurements and results
Extraction of Is and n
Extraction of Rs
Extraction of Rj
Discussion
3.1.3 Proposed physical-based model
DC forward modeling
DC reverse modeling
C-V modeling
S-parameter modeling
Proposed model
3.2 Rectifier to combine different sources of energy
3.2.1 Energy addition at RF level using a diplexer
Band-stop filter design
Diplexer design:
Fabrication and measurement
Conclusion
3.2.2 Energy addition at DC level
Design of rectifier with 1-input at 2.45GHz
Design of rectifier with two inputs at 2.45 GHz
3.3 Conclusion
Global system and measurements
4.1 Co-design
4.1.1 Impedance matching in co-design rectenna
4.1.2 Choosing matching impedance
4.2 Operation of spatial diversity rectenna in realistic environment
4.2.1 Diversity antenna concept
4.2.2 Rectenna design
Antenna arrangement
Rectifier structure
4.2.3 Experimental setup
4.2.4 Measurement results
Antenna measurement
Rectifier measurement
Rectenna measurement in realistic environment
Conclusion
4.3 Flexible diversity rectenna
4.3.1 Flexible diversity antenna design
Antenna configuration
Technique to reduce mutual coupling and enhance the antenna gain
4.3.2 Interface between antenna and rectifier
On flexible-substrate rectifier
Separate rectifier
4.3.3 Fabrication and measurement
Fabrication
Antenna measurement
Diversity rectenna measurement in realistic environment
4.4 Conclusion
Conclusion and perspectives
5.1 Conclusion
5.2 Perspectives
References
