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'Microrings' could nix wires for communications in homes, offices

(PhysOrg.com) -- Purdue University researchers have developed a miniature device capable of converting ultrafast laser pulses into bursts of radio-frequency signals, a step toward making wires obsolete...

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Light beams offer bright future for lighter-weight cars

(Phys.org)—Beams of light could one day replace the jumble of wires under a car bonnet, leading to lighter-weight and more fuel-efficient vehicles.

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'Lab-on-a-chip' to accelarate, enhance medical testing, researcher says

(Phys.org)—Suppose you are sick enough to go to an emergency room. A physician examines you and decides that some blood tests are warranted. A phlebotomist draws the blood and sends it to a lab for...

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NASA's GPM observatory completes first dry run

(Phys.org)—NASA's Global Precipitation Measurement (GPM) Core Observatory satellite went through its first complete comprehensive performance test (CPT), beginning on Oct. 4, 2012 at NASA's Goddard...

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New LED lights have a bright future for communication

Imagine a world where bright, energy sipping, cheap, durable LEDs light the world. A world where if you have enough light to see, you are connected.

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Measuring the next successful antennas for in-body health monitoring devices

Antennas for the latest implanted medical devices are being developed by Queen Mary University of London and tested through a unique piece of kit at the UK's National Physical Laboratory (NPL).

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Building the smart home wirelessly

Like the paperless office, the smart home has been a long time coming, but a report published in the International Journal of Internet Protocol Technology, suggests that radio tags coupled with mobile...

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Wireless optical transmission key to secure, safe and rapid indoor...

Light is better than radio waves when it comes to some wireless communications, according to Penn State engineers. Optical communications systems could provide faster, more secure communications with...

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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.

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Metamaterials approach makes better satellite antennas

(PhysOrg.com) -- Cheaper, lighter and more energy-efficient broadband devices on communications satellites may be possible using metamaterials to modify horn antennas, according to engineers from Penn...

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Iowa State engineer developing technology to enhance battery life in portable...

Soldiers carrying sophisticated communication and navigation devices into the field have the same battery headaches as civilians working their smart phones at the airport.

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World's first GaN HEMT T/R module operating in the C-Ku band

Fujitsu Laboratories today announced that it has successfully developed the world's first transmitter/receiver (T/R) module using gallium-nitride (GaN)high electron mobility transistor (HEMT)...

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IBM creates first graphene based integrated circuit

(PhysOrg.com) -- Taking a giant step forward in the creation and production of graphene based integrated circuits, IBM has announced in Science, the fabrication of a graphene based integrated circuit...

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Toshiba's new technology cuts phase noise in oscillation ICs for wireless...

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...

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LED lights point shoppers in the right direction

Looking for an item in a large department store or mall can be like searching for a needle in a haystack, but that could change thanks to a hybrid location-identification system that uses radio...

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No more virtual pickpocketing of credit cards, thanks to new tap and pay...

(PhysOrg.com) -- With technology has come ease. These days, thanks to near-field communications (NFC) and radio frequency identification (RFID), consumers no longer have to swipe credit cards through...

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Sony develops low-power LSIs for wideband millimeter-wave wireless...

National University Corporation, Tokyo Institute of Technology and Sony have jointly developed a radio frequency (“RF”) LSI and a baseband (“BB”) LSI that enables millimeter-wave wireless data transfer...

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TWINS/IBEX spacecraft observed impact of powerful solar storm from inside and...

(PhysOrg.com) -- For the first time, instrumentation aboard two NASA missions operating from complementary vantage points watched as a powerful solar storm spewed a two million-mile-per-hour stream of...

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Verizon to auction spectrum worth billions

Verizon Wireless on Wednesday said it will auction a parcel of radio frequencies, which could be worth billions of dollars in an industry scrambling to offer consumers more cellular broadband.

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Nist releases final version of revised Bluetooth security guide

The National Institute of Standards and Technology (NIST) has issued the final version of the Guide to Bluetooth Security (NIST Special Publication 800-121 Rev. 1). The publication is a revision of the...

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New high standards for emergency wireless devices

First responders rely increasingly on wireless communication devices, and in emergencies they cannot afford major signal loss or delay caused by attenuation, interference, or reflection. Because lives...

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Congested frequencies: How to improve bandwidth access for military and...

Military radars, military communications networks, and commercial communications networks all require increasing amounts of limited radio frequency spectrum. Balancing national security requirements of...

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First 10 Gbps packet transmission in outdoor experiment, paving way for...

NTT DOCOMO, Japan's leading mobile operator and provider of integrated services centered on mobility, announced today that in a joint outdoor experiment conducted recently with the Tokyo Institute of...

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New model to improve vehicle-to-vehicle communication for 'intelligent...

Imagine a transportation system where vehicles communicate directly with each other in real time, giving drivers warnings about traffic delays, allowing a single driver to control multiple vehicles or...

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A new way to see space – even its junk

When a large radio telescope in the Australian outback was unveiled last week its improved sensitivity was immediately apparent. It transformed images of supernova remnants taken with last year's...

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Space laser to prove increased broadband possible

When NASA's Lunar Laser Communication Demonstration (LLCD) begins operation aboard the Lunar Atmosphere and Dust Environment Explorer (LADEE) mission managed by NASA's Ames Research Center in Moffett...

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Precise control of optical frequency on a chip

In the 1940s, researchers learned how to precisely control the frequency of microwaves, which enabled radio transmission to transition from relatively low-fidelity amplitude modulation (AM) to...

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Wearable antennas for remote monitoring

Humans may become walking antennas for remote monitoring and mobile communications − with the help of University of Adelaide research to produce antennas integrated into clothing.

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Power amplifiers for 5G made of gallium nitride

The wireless data transmission via mobile communication is reliable and affordable. However, data volume per user is rising exponentially. Causes are not only the continuously growing number of...

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Plasmonic device offers broadband modulation to optical links at 100Gbit/s

Today's society is growing in population and productivity puts ever higher demands on the Internet, and without scientific developments to provide ways meeting our traffic needs, it will begin to clog....

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