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Articles on Wireless technology

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This experimental setup shows an ultra-low-power wireless communications device that could one day be used in tiny remote sensors. Zerina Kapetanovic

Device transmits radio waves with almost no power – without violating the laws of physics

A wireless transmitter uses almost no power and at first glance appears to violate the laws of physics. It’s actually a clever use of physics that could one day transmit data from tiny remote sensors.
A Long Island Power Authority smart meter installed at a home in Suffolk County, N.Y. John Paraskevas/Newsday RM via Getty Images

Smart meters and dynamic pricing can help consumers use electricity when it’s less costly, saving money and reducing pollution

Most households pay a flat rate 24/7 for electricity although the cost of generating it fluctuates through the day. Wireless technologies are changing that system.
Wireless sensors and data systems can help farmers use water much more efficiently by monitoring soil conditions. Lance Cheung/USDA via Smith Collection/Gado/Getty Images

Farmers can save water with wireless technologies, but there are challenges – like transmitting data through mud

The Agricultural Internet of Things is making farming more efficient. An information technology expert describes some of the challenges of working with sensors and antennas underground.
The FAA raised concerns that new, full-speed 5G cellphone services near airports could interfere with aircraft operations. Bernal Saborio/Flickr

How 5G puts airplanes at risk – an electrical engineer explains

Airplanes use radio waves to determine how far off the ground they are. New 5G cellphone services come close to the same frequencies the airplanes use. Here’s how that can be a problem.
Telecommunications companies around the world are expanding their next-generation, or 5G, networks. Guo Shining/VCG via Getty Images

What is 5G? An electrical engineer explains

5G is 10 times faster than 4G, promising better wireless internet access. It’s also expected to put the Internet of Things revolution in high gear.

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