[nycwireless] Antenna to boost wireless security (news.com)

[Jon Baer]

http://news.com.com/2100-1033-965239.html?tag=fd_top

<snip>
Antenna to boost wireless security

By Sandeep Junnarkar <mailto:sandeepj@;cnet.com>
Staff Writer, CNET News.com
November 11, 2002, 7:54 AM PT

An optical antenna that uses a geometrically shaped lens promises to bring greater security to wireless networks for businesses, according to British scientists.

The new device, developed by researchers at the University of Warwick's engineering department <http://www.eng.warwick.ac.uk/csp/>, uses a combination of precise curvatures on the lens and a multilayered filter to achieve its goal.

Optical antennas are already available. But this new antenna is so precise, according to the researchers, that it can detect a signal on a single wavelength of light. The scientists, led by professor Roger Green, assert that the device is 100 times more efficient at gathering in a signal than any previous optical sensor of this kind.




--
NYCwireless - http://www.nycwireless.net/
Un/Subscribe: http://lists.nycwireless.net/mailman/listinfo/nycwireless/
Archives: http://lists.nycwireless.net/pipermail/nycwireless/