Wednesday, March 13, 2019

IARU Warns of Interference Risk from Wireless Power Transfer

If your smartphone has a charging pad instead of a cable and wall cube, then you're using wireless power transfer. The technology is also growing for charging household appliances, power tools and, soon, electric vehicles. The ARRL Letter reports on a study conducted by Region 1 of the International Amateur Radio Union (which covers Europe, Africa and the Middle East) on the impact of widespread use of WPT-EV, or wireless power transfer for electric vehicles.

 It concludes that current ITU and CEPT (European) interference standards are inadequate and will result in "a widespread and serious impact on radio communications operating in the vicinity" of WPT systems, "given the planned density of WPT-Electric Vehicle Systems." The report has been submitted to the appropriate working groups of both the International Telecommunication Union (ITU) and the European Conference of Postal and Telecommunications Administrations (CEPT) for further study.