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Latest Metamaterial antenna Stories

Wireless Device Turns 'Lost' Energy Into Electric Power
2013-11-07 14:28:49

Duke University Metamaterial cells designed by Duke engineers provide electric power as efficiently as solar panels Using inexpensive materials configured and tuned to capture microwave signals, researchers at Duke University's Pratt School of Engineering have designed a power-harvesting device with efficiency similar to that of modern solar panels. The device wirelessly converts the microwave signal to direct current voltage capable of recharging a cell phone battery or other...

Theory And Practice Is Key To Optimized Broadband, Low-loss Optical Metamaterials
2013-03-28 16:14:39

Penn State The union of theory and practice makes broadband, low-loss optical devices practical, which is why two groups of Penn State engineers collaborated to design optical metamaterials that have custom applications that are easily manufactured. Metamaterials are manufactured materials that derive their unusual properties from structure rather than only composition, and possess exotic properties not usually found in nature. Nanostructured metamaterials appear different for signals...

2013-03-19 15:06:11

Researchers at the University of Southampton's Optoelectronics Research Centre (ORC) have created an artificial material, a metamaterial, with optical properties that can be controlled by electric signals. Photonic metamaterials are artificial materials created by precise and extremely fine structuring of conventional media using nanotechnology. They offer numerous new applications from cloaking to radically improved solar cells. However, the properties of metamaterials are usually fixed....

Cheap, Efficient Sensor Could Revolutionize Airport Security
2013-01-18 12:57:32

Lee Rannals for redOrbit.com — Your Universe Online Duke University Engineers have developed a sensor for technologies like airport security scanners that is more efficient, versatile and cheaper. The team fabricated a material, known as a metamaterial, that acts as a lens to image scenes using fewer components than conventional detectors. The properties of this material make it require less equipment than conventional detector sensors. The material is a thin laminate with...


Word of the Day
sough
  • A murmuring sound; a rushing or whistling sound, like that of the wind; a deep sigh.
  • A gentle breeze; a waft; a breath.
  • Any rumor that engages general attention.
  • A cant or whining mode of speaking, especially in preaching or praying; the chant or recitative characteristic of the old Presbyterians in Scotland.
  • To make a rushing, whistling, or sighing sound; emit a hollow murmur; murmur or sigh like the wind.
  • To breathe in or as in sleep.
  • To utter in a whining or monotonous tone.
According to the OED, from the 16th century, this word is 'almost exclusively Scots and northern dialect until adopted in general literary use in the 19th.'
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