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Articles on Antennas

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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.
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.
Jean Paul Santos with the finished 4x4 sub-array antenna assembly that may help rovers talk directly with Earth. Matthew Chin

Talking to Mars: new antenna design could aid interplanetary communication

New research provides a compact but powerful way for Mars rovers to communicate directly with Earth via an array of smaller antenna elements, bypassing the need for an intermediary.

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