Researchers at the Georgia Institute of Technology have developed a method to capture and harness the electromagnetic energy emitted by radio and television transmitters, cell phone networks and satellite communications that could someday lead to self-powering electronic devices. “There is a large amount of electromagnetic energy all around us, but nobody has been able to tap … [Read more...]
Multilayer Chip Bead Series for Noise Elimination in Compact Mobile Devices
TDK Corporation, a manufacturer of electronic components, modules and systems, has released a miniaturized multilayer chip bead series in case size 0603 (EIA 0201) ideal for eliminating noise in compact mobile devices, including data storage devices and smartphones that operate with multiple frequency bands. Measuring 0.6 x 0.3 x 0.3 mm³ and featuring “excellent electrical … [Read more...]
Ultra-Low Noise, High PSRR Linear Voltage Regulators
Semiconductor company Texas Instruments has released two high-current, low-dropout (LDO) linear voltage regulators “designed to meet the the requirements of RF and analog circuits in applications such as mobile handsets, tablets, Wi-Fi devices and base stations.” According to the company, the LP5907 linear voltage regulator features output noise of less than 10-uVrms, PSRR of … [Read more...]
Samsung Announces Breakthrough in 5G Mobile Communications
Samsung has announced a significant breakthrough in the development of high-speed 5G mobile communications with the creation of an adaptive array transceiver capable of transmitting data in the millimeter-wave bands at a rate of up to 1.056 Gbit/s and a range of up to 2 km (1.2 miles). Researchers have long believed that millimeter-wave bands offer the broad range of … [Read more...]
Apple iPad 2 Could Interfere with Implanted Cardiac Devices, Study Suggests
The magnets embedded in the body and accessories of Apple’s iPad 2 tablet computers may interfere with implanted cardiac rhythm devices (CRD) and could potentially kill a user in their sleep, a new study presented at the Heart Rhythm Society’s annual conference has suggested. Fourteen-year-old high school freshman Gianna Chien of Stockton, Calif. made her … [Read more...]
Researchers Develop Method to Turn LCD Display into Touchscreen Using EMI
Researchers from the University of Washington’s Ubiquitous Computing Lab have developed a method to turn an LCD display into a touch screen by utilizing the low levels of electromagnetic interference produced by many consumer electronics. “All these devices around you have all these signals coming out of them, and we ignore them because we think they’re noise,” Sidhant Gupta, … [Read more...]
Ground-Based In-Flight Broadband Services Proposal Faces Opposition from Satellite Industry
A proposal for in-flight broadband services in consideration by the Federal Communications Commission this week from semiconductor company Qualcomm is facing heavy opposition from the satellite industry. Satellite service providers believe that the July 2011 proposal, which details plans to provide consumers with “anywhere/anytime broadband access” by transmitting signals from … [Read more...]
RF Spectrum Capture and Playback System for Testing, Commercial and Defense Spectrum Management
X-COM Systems, a manufacturer of products and software solutions for electronic warfare, interference analysis, wireless communications and spectrum management, has released the IQC5000A series RF spectrum capture and playback system, “the smallest, lightest, best-performing system available for the capture and playback of RF and microwave signals over short or long time spans … [Read more...]
High-Side Load Switches for Use in Portable Electronics
Vishay Intertechnology, a manufacturer of discrete semiconductors and passive electronic components, has released two new slew-rate-controlled p-channel high-side load switches designed for 1.5 V to 5.5 V operation. The SiP32458 and SiP32459 are ideal for load switching in portable electronics, including smartphones, GPS devices, digital cameras, media players, notebooks and … [Read more...]
Army Repeaters Cited as Cause of Garage Door Opener Issues in Georgia
Army officials confirmed last month that a recent radio tower equipment upgrade at the Hunter Army Airfield in Savannah, Ga., was the source of interference affecting the garage door openers of hundreds of homeowners in nearby neighborhoods. Ron Elliot, director of public affairs for Hunter Army Airfield and Fort Stewart, reported that new, stronger repeaters were installed on … [Read more...]
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