Wireless energy harvesting for mobile devices
Wireless energy harvesting is the technique to gather the ambient RF energy transmitted from a wireless router, radio broadcast, or TV broadcast to power up a sensor network without any interconnecting wires. In this project, a low RF power harvester design is presented to harvest the ambient en...
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| Format: | Final Year Project |
| Language: | English |
| Published: |
2014
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10356/60325 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | Wireless energy harvesting is the technique to gather the ambient
RF energy transmitted from a wireless router, radio broadcast, or
TV broadcast to power up a sensor network without any
interconnecting wires. In this project, a low RF power harvester
design is presented to harvest the ambient energy in order to power
a tag circuit. A matching circuit is designed to implement
maximum power harvesting from the antenna. The operation of tag
circuit is divided into two modes: active mode and standby mode.
The tag circuit only requires 5uA at 2.5v in standby mode; excess
energy will be stored in a buffer capacitor for accumulation until
full operation mode. The system operates in the 2.4 GHz band
require a minimum input RF power of -5dbm. |
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