News tagged with signal frequency
New research could mean faster computers and better mobile phones
Graphene and carbon nanotubes could improve the electronics used in computers and mobile phones, reveals new research from the University of Gothenburg, Sweden.
Nanotechnology / Nanomaterials
May 14, 2012 |
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Researchers develop first silicon wafer-scale 110 GHz phased array transmitter
(PhysOrg.com) -- TowerJazz, the global specialty foundry leader, and The University of California, San Diego, provider of a leading program in microwave, millimeter-wave and mixed-signal RFICs, today announced ...
Apr 06, 2012 |
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LightSquared tries to revive broadband network
A Virginia company is trying to revive its plan for a national high-speed wireless network, arguing that it can address federal regulators' concerns over interference with GPS devices.
Mar 19, 2012 |
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A quiet phase: NIST optical tools produce ultra-low-noise microwave signals
By combining advanced laser technologies in a new way, physicists at the National Institute of Standards and Technology (NIST) have generated microwave signals that are more pure and stable than those from ...
Jun 27, 2011 |
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Toshiba's new technology cuts phase noise in oscillation ICs for wireless communication
Toshiba Corporation today announced that it has developed noise reduction technology that reduces jitter in radio-frequency signals, cutting phase noise by up to 90 percent. This breakthrough opens the way for a further migration ...
Jun 16, 2011 |
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Dolphins use double sonar
Dolphins and porpoises use echolocation for hunting and orientation. By sending out high-frequency sound, known as ultrasound, dolphins can use the echoes to determine what type of object the sound beam has ...
Jun 07, 2011 |
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Breakthrough for photons in the microwave frequency range
Photons in the microwave frequency range are important in quantum research - for quantum information processors, for example. Now, for the first time, researchers have achieved the controlled production of ...
Feb 22, 2011 |
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Wal-Mart to roll out smart tags on men's basics
(AP) -- Wal-Mart Stores Inc. is putting electronic identification tags on men's clothing like jeans starting Aug. 1 as the world's largest retailer tries to gain more control of its inventory. But the move is raising eyebrows ...
Jul 23, 2010 |
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Radio signals research scans new horizons
A study at the University of Leicester aims to understand the reasons why radio signals sometimes act unpredictably- travelling beyond the horizon and interfering with other signals.
Jun 22, 2010 |
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Fiber-wireless (Fi-Wi) to provide ultra-high-speed, short-range communication
(PhysOrg.com) -- By looking at the latest electronic communication devices that have emerged over the past few years, it's clear that the trend of smaller, portable devices is strong and expected to continue. ...
Mar 09, 2010 |
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New device for ultrafast optical communications
A new device invented by engineers at UC Davis could make it much faster to convert pulses of light into electronic signals and back again. The technology could be applied to ultrafast, high-capacity communications, ...
Mar 01, 2010 |
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New sensor exploits traditional weakness of nano devices
By taking advantage of a phenomenon that until now has been a virtual showstopper for electronics designers, a team led by Oak Ridge National Laboratory's Panos Datskos is developing a chemical and biological sensor with ...
Feb 12, 2010 |
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Explained: The Discrete Fourier Transform
(PhysOrg.com) -- In 1811, Joseph Fourier, the 43-year-old prefect of the French district of Isčre, entered a competition in heat research sponsored by the French Academy of Sciences. The paper he submitted ...
Nov 25, 2009 |
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'Fingerprinting' RFID Tags: Researchers Develop Anti-Counterfeiting Technology
(PhysOrg.com) -- Engineering researchers at the University of Arkansas have developed a unique and robust method to prevent cloning of passive radio frequency identification tags. The technology, based on one or more unique ...
Nov 19, 2009 |
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Don't change that channel: DTV woes still abound
(AP) -- Think the digital TV transition is over? Not quite. Many viewers have found that they can't pick up certain stations after the switch, even with the right TVs or converter boxes. The stations are still trying to ...
Sep 18, 2009 |
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