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Essay What Is Radio Frequency Energy

Assignment id 1013093
Discipline Other
Assignment type Essay
Words 1115
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Radio frequency power is that the energy transmitted by resources which can create electromagnetic fields like TV signs, radio signal, wireless networks and cell phone towers, by using specially designed circuits attached to a an antenna this electromagnetic energy can be harvested and transformed into a usable DC voltage. Among the applications of the technology is in radio frequency identification tags where harvesting apparatus can receives an RF signal from a sensing device; this RF signal can supply enough power to let the RFID label to send wireless frequency back including identification information to any item of interest. The circuits designed for these applications can made relatively little and may convert the ambient electromagnetic waves into some usable DC voltage at distances up to 100 meters in the origin of the RF signal. Depending on the environment and the energy of RF signal accessible the energy conversion circuit could be linked to a capacitor that may offer a constant required voltage to the apparatus in question when there isn't enough source of energy available also this RF power can be used to charge batteries. Another appealing characteristic of harvesting available RF energy is that it can be used as a supplement to the traditional energy harvesting approaches. These energy harvesting methods may be used to charge batteries at night when solar electricity isn't accessible and they could be utilized as backup system when the main supply of electricity neglects and maintain the device functioning or send an alarm. This technology can extend the battery life and that can be carried out by offsetting the sleep current required by low power microcontroller. Antenna Design and Power Management for Wireless Energy Harvesting Program: In differen...

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