Antennas zip it up

The first zip-based antennas have been created by researchers at the University of Rennes in France. In their design the zip behaves like a monopole antenna and it can be tuned using the slider on the zip??s metal teeth to defi ne the length of the antenna and therefore the resonant frequency. The prototype demonstrates that it could be used in WiFi applications at 2.4??2.7 GHz.