UW Today

Joshua Smith


February 23, 2016

UW engineers achieve Wi-Fi at 10,000 times lower power

UW computer scientists and electrical engineers have generated "passive" Wi-Fi transmissions using 10,000 times less power.

With “Passive Wi-Fi,” UW computer scientists and electrical engineers have generated Wi-Fi transmissions using 10,000 times less power than conventional methods. The system can transmit Wi-Fi signals at rates up to 11 megabits per second — lower than maximum Wi-Fi speeds but 11 times faster than Bluetooth — that can be decoded on any of the billions of devices with Wi-Fi connectivity.


October 10, 2014

Engineering lecture series focuses on technologies for the heart

2014 flyer image

The University of Washington’s College of Engineering 2014 fall lecture series will feature faculty researchers in engineering and medicine who are improving cardiac medical care with new technologies.


September 3, 2014

Changing temperature powers sensors in hard-to-reach places

The power harvester could be placed outside and runs off of temperature changes in the natural world.

University of Washington researchers have taken inspiration from a centuries-old clock design and created a power harvester that uses natural fluctuations in temperature and pressure as its power source.


August 4, 2014

No-power Wi-Fi connectivity could fuel Internet of Things reality

A diagram of how the technology works.

University of Washington engineers have designed a new communication system that uses radio frequency signals as a power source and reuses existing Wi-Fi infrastructure to provide Internet connectivity to battery-free devices.


August 13, 2013

Wireless devices go battery-free with new communication technique

Two devices communicate without using battery power.

University of Washington engineers have created a new wireless communication system that allows devices to interact with each other without relying on batteries or wires for power.