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Making Radio Chips for Hell


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The Mixer IC chip.

Researchers have developed a wireless radio mixer integrated circuit that can withstand temperatures as high as 500 degrees Celsius.

Credit: KTH Royal Institute of Technology/University of Arkansas/IEEE

Researchers at the University of Arkansas and KTH Royal Institute of Technology in Sweden have developed a wireless radio mixer integrated circuit, known as a mixer IC, which can operate at temperatures up to 500 degrees Celsius.

The mixer IC was designed by KTH's Ana Rusu, packaged by Arkansas researcher Alan Mantooth's group, and then tested by Rusu's group.

The new device translates a 59-megahertz radio frequency signal to a 500-kilohertz signal to enable signal processing.

The researchers are also developing sensors for the interior of diesel engine combustion chambers so computers can better control engine efficiency, as well as developing power electronics for actuating a drill bit at the bottom of an oil well, where temperatures can reach 150 degrees Celsius.

From IEEE Spectrum
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