Among the most important is space solar power, an emerging critical technology that can significantly help to address energy shortages
In the future, clean alternatives such as harvesting energy from electromagnetic waves may help ease the world’s energy shortage
For our modern, technologically-advanced society, in which technology has become the solution to a myriad of challenges, energy is critical not only for growth but also, more importantly, survival. The sun is an abundant and practically infinite source of energy, so researchers around the world are racing to create novel approaches to “harvest” clean energy from the sun or transfer that energy to other sources.
This week in the journal Applied Physics Letters, from AIP Publishing, researchers from the University of Waterloo in Canada report a novel design for electromagnetic energy harvesting based on the “full absorption concept.” This involves the use of metamaterials that can be tailored to produce media that neither reflects nor transmits any power—enabling full absorption of incident waves at a specific range of frequencies and polarizations.
“The growing demand for electrical energy around the globe is the main factor driving our research,” said Thamer Almoneef, a Ph.D. student. “More than 80 percent of our energy today comes from burning fossil fuels, which is both harmful to our environment and unsustainable as well. In our group, we’re trying to help solve the energy crisis by improving the efficiency of electromagnetic energy-harvesting systems.”
Since the inception of collecting and harvesting electromagnetic energy, classical dipole patch antennas have been used. “Now, our technology introduces ‘metasurfaces’ that are much better energy collectors than classical antennas,” explained Omar M. Ramahi, professor of electrical and computer engineering.
Metasurfaces are formed by etching the surface of a material with an elegant pattern of periodic shapes. The particular dimensions of these patterns and their proximity to each other can be tuned to provide “near-unity” energy absorption. This energy is then channeled to a load through a conducting path that connects the metasurface to a ground plane.
The key significance of the researchers’ work is that it demonstrates for the first time that it’s possible to collect essentially all of the electromagnetic energy that falls onto a surface.
Read more: Harvesting Energy from Electromagnetic Waves
The Latest on: Electromagnetic energy harvesting
[google_news title=”” keyword=”Electromagnetic energy harvesting” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
via Google News
The Latest on: Electromagnetic energy harvesting
- Harvesting vibrational energy from 'colored noise'on April 18, 2024 at 8:35 am
The energy demands of today's ubiquitous small electronic devices—including sensors, data transmitters, medical implants and 'wearable' consumer products such as Fitbits—can no longer be met by ...
- The Pentagon Created a New Kind of Underwater Predator: The Mysterious Manta Rayon April 11, 2024 at 5:30 am
Northrop Grumman has unveiled its prototype unmanned underwater vehicle—the Manta Ray. The drone, which looks like a real manta ray, is an example of biomimicry. The drone will spend a lot of time ...
- Non-stop drone operations enabled by overhead power line rechargingon April 9, 2024 at 2:35 am
Researchers propose an autonomous drone system, drawing energy from transmission cables, enabling continuous operation.
- 'Iron Man' tech in real life? China to develop fibers which can convert T-shirts into electronic deviceson April 8, 2024 at 7:20 am
Chinese researchers are working on wearable smart 't-shirts' that will have all the next-gen features for users, bringing in a new kind of tech revolution.
- Harvesting human motion energy: The promise of wearable triboelectric nanogeneratorson March 11, 2024 at 1:33 pm
As such, traditional electromagnetic power generation mode cannot efficiently collect this energy without affecting the normal activities of the human body. A new energy harvesting method ...
- Harvesting the human motion energy: The promise of wearable triboelectric nanogeneratorson March 9, 2024 at 4:00 pm
Obviously, the traditional electromagnetic power generation mode cannot efficiently collect this energy without affecting the normal activities of the human body. A new energy harvesting method ...
- Energy Harvestingon January 24, 2024 at 5:10 pm
and Shinohara, Naoki 2023. RF Energy Harvesting and Wireless Power Transfer for Energy Autonomous Wireless Devices and RFIDs. IEEE Journal of Microwaves, Vol. 3, Issue. 2, p. 763.
- What are nanogenerators? Explaining their types, applications, and potentialon April 4, 2023 at 4:22 am
The burgeoning field of harvesting untapped energy within our living environment is gaining momentum as the global quest to supplant fossil fuels with clean, renewable alternatives intensifies.
- Energy Harvesting Shows New Signs of Lifeon April 8, 2021 at 4:33 am
“There’s no IoT sensor out there that’s powered by energy harvesting — not today, other than typically small-area solar/photovoltaic, some thermal TEGs, and large apple-sized electromagnetic vibration ...
- Electronic Circuit Design for RF Energy Harvesting using 28nm FD-SOI Technologyon January 27, 2017 at 4:17 am
A design of voltage doubler circuit has been studied in context of electromagnetic energy harvesting using 28 nm FD-SOI technology. After analysis of the operating constraints of the circuit, the ...
via Bing News