A new solution created by a University of British Columbia graduate student could prevent dropped calls and text messages in disaster situations by using television and radio channels to transmit cellular signals when telecommunication systems are overloaded. Because wireless towers are designed to handle a specific amount of call volume, a sudden or drastic increase in the … [Read more...]
Interference-Cancelling Technology May Ease Spectrum Congestion
A small startup company is testing a new technology that may enable mobile devices to simultaneously transmit and receive data on a single frequency. Founded by a group of Stanford University researchers, who in 2011 developed the first wireless radios capable of sending and receiving signals at the same time, California-based Kumu Networks Inc. believes its new technology … [Read more...]
Technology Allows Data Transfer through Metal Shielding
British engineers have reportedly discovered a way to bypass the Faraday cage effect that prevents the entry or escape of an electromagnetic wave through a metallic enclosure. According to a statement released by developer The Technology Partnership (TTP), new patent-pending Fluxor technology creates a “window” for electromagnetic transmission of power and data by applying a … [Read more...]
New GaAs MMIC Distributed Amplifier
Custom MMIC, a developer of performance-driven monolithic microwave integrated circuits (MMICs), has released the CMD173P4, a GaAs MMIC distributed amplifier operating from DC to 20 GHz. Ideal for use in microwave radio systems, telecom infrastructure, test instrumentation and military electronic warfare subsystems, the CMD173P4 delivers greater than 15 dB of gain with a … [Read more...]
Radio Test System for Evaluation of Military and Software-Defined Radios
Aeroflex Inc., a provider of high performance microelectronic components and test and measurement equipment, has released the new Aeroflex 7215 Configurable Automated Test Set, a radio test system designed for production and depot-level testing of military and software-defined radios (SDR). According to the company, the new 7215 radio test system includes a high resolution … [Read more...]
Spring Contacts for Shielding, Grounding and Electrical Connection Applications
Harwin, a manufacturer of electrical and electronic interconnect solutions, has expanded its range of EZ-Spring Contacts with new contact styles and heights. Part of the EZ-BoardWare range of PCB hardware products, the surface mount spring contacts—also known as spring fingers or grounding contacts—are now available in 15 different sizes, ranging from 1.70mm to 7.25mm free … [Read more...]
RFIDs Jam Mobile Signals in the Philippines
A telecommunications company serving metropolitan areas of the Philippines has uncovered the cause of poor cellular reception in major sections of Makati. Globe Telecom Inc. said last week that the radio frequency identification (RFID) systems installed as security measures in some upscale residential villages along a stretch of Edsa from Guadalupe to Magallanes were … [Read more...]
A National Plan for EMP Protection (Part 1)
Don White Consultant, Don White Consultants Jerry Emanuelson Consultant INTRODUCTION This article has two parts. It begins with a brief EMP historical review demonstrating the field strength threat that must be shielded against in order to assure survival of electrical and electronic items and systems, and the retention of our modern lifestyle. Next comes planning, … [Read more...]
Compact EMC Filters with Low Leakage Current
Electronics specialist TDK Corporation has released a new series of EPCOS EMC filters. Applications for the new filters include converters and power electronics systems. The B84142A*166 series of compact 2-line filters features different models designed for rated currents of 10 A, 16 A, and 30 A at a rated voltage of 250 V AC (50/60 Hz). All models feature extremely low … [Read more...]
Satellites Need Better Shielding from Space Weather, Say Researchers
Scientists are investigating the effects of extreme space weather on geostationary satellites with the intention of better preventing electronics failure. In a new study published in Space Weather, researchers from the Massachusetts Institute of Technology (MIT) say that solar flares, geomagnetic storms and other forms of electromagnetic radiation may be to blame for up to 26 … [Read more...]
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