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Scientists have come up with a new way to convert radio waves into electricity.
An international team of researchers from Tohoku University, the National University of Singapore, and the University of Messina in Italy has developed an innovative method for converting electromagnetic wave energy into direct current.
Our daily life is filled with electromagnetic waves. Buildings are literally riddled with Wi-Fi signals, Bluetooth connections between phones and wireless headphones, laptops and printers. Wireless routers emit energy in the form of radio frequency radiation, which allows you to transmit data to various devices.
Scientists have proposed using excess radio frequency energy in the environment to power small gadgets. This approach can significantly reduce battery dependency, extend battery life, and reduce the negative impact on the environment. This solution may be particularly relevant for remote areas where frequent battery replacement is difficult.
In an article published in the journal Nature Electronics, the researchers describe in detail how they were able to improve the traditional rectifier, increasing the efficiency of energy conversion. A rectifier converts alternating current that changes direction to direct current that flows in one direction. This process is carried out using various components, mainly diodes and capacitors.
Existing technologies, such as the Schottky diode, have encountered difficulties in efficiently converting energy. Scientists have managed to overcome these problems by developing a compact nanoscale spin rectifier (SR). The device is capable of converting ambient wireless RF signals with a power of less than -20 dBm to a constant voltage.
At the moment, the signal source must be located in the immediate vicinity of the electronic device. However, researchers are actively working to improve the technology. It is possible that an antenna will be integrated on the chip in the future to improve efficiency and compactness.
In addition, scientists are developing series-parallel connections for tuning the impedance in large arrays of spin rectifiers. To do this, developers use on-chip interconnects to communicate individual SRS.
According to the researchers, spin rectifier technology can be easily integrated into energy harvesting modules to power electronic devices and sensors.
Learning about the technology opens the way to creating a self-contained, clean energy solution that can help meet many of the challenges of the future. Harnessing excess radio frequency energy will not only reduce the carbon footprint of electronic devices, but also provide new opportunities for developing autonomous systems in areas ranging from smart homes to industrial sensors and medical implants.
Source
An international team of researchers from Tohoku University, the National University of Singapore, and the University of Messina in Italy has developed an innovative method for converting electromagnetic wave energy into direct current.
Our daily life is filled with electromagnetic waves. Buildings are literally riddled with Wi-Fi signals, Bluetooth connections between phones and wireless headphones, laptops and printers. Wireless routers emit energy in the form of radio frequency radiation, which allows you to transmit data to various devices.
Scientists have proposed using excess radio frequency energy in the environment to power small gadgets. This approach can significantly reduce battery dependency, extend battery life, and reduce the negative impact on the environment. This solution may be particularly relevant for remote areas where frequent battery replacement is difficult.
In an article published in the journal Nature Electronics, the researchers describe in detail how they were able to improve the traditional rectifier, increasing the efficiency of energy conversion. A rectifier converts alternating current that changes direction to direct current that flows in one direction. This process is carried out using various components, mainly diodes and capacitors.
Existing technologies, such as the Schottky diode, have encountered difficulties in efficiently converting energy. Scientists have managed to overcome these problems by developing a compact nanoscale spin rectifier (SR). The device is capable of converting ambient wireless RF signals with a power of less than -20 dBm to a constant voltage.
At the moment, the signal source must be located in the immediate vicinity of the electronic device. However, researchers are actively working to improve the technology. It is possible that an antenna will be integrated on the chip in the future to improve efficiency and compactness.
In addition, scientists are developing series-parallel connections for tuning the impedance in large arrays of spin rectifiers. To do this, developers use on-chip interconnects to communicate individual SRS.
According to the researchers, spin rectifier technology can be easily integrated into energy harvesting modules to power electronic devices and sensors.
Learning about the technology opens the way to creating a self-contained, clean energy solution that can help meet many of the challenges of the future. Harnessing excess radio frequency energy will not only reduce the carbon footprint of electronic devices, but also provide new opportunities for developing autonomous systems in areas ranging from smart homes to industrial sensors and medical implants.
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