Shared Spectrum Company (SSC) of Vienna, Va., successfully demonstrated the company's Dynamic Spectrum Access (DSA) technology, proving its capabilities on multiple hardware platforms in harsh military mobile radio environments.The field demonstration, conducted at the Army's Yuma Proving Ground in the Arizona desert, was the latest large-scale field test of SSC's technology as … [Read more...]
Company Awarded $1.4M RFID Contract for Wisconsin School Security
VUANCE Inc, a provider of Radio Frequency Verification Solutions, including active RFID, electronic access control, credentialing, accountability, and critical situation management, announced that it has been awarded a $1.4 million contract from the Racine, Wisc., Unified School District to install its Managed Automated Security Controls (MASC) security solution into 31 school … [Read more...]
Cavity Filter Targets WiMAX Applications
A new cavity filter series from MtronPTI has been developed especially for WiMAX applications and other wireless metro area network systems. The WiMAX cavity filter series covers the 2.3- to 2.7-GHz frequency range with emphasis on low-loss narrowband systems. A re-configurable design platform fully modeled in electromagnetic simulation software and tested with a stringent … [Read more...]
Luebbers Steps Down at Remcom
Dr. Raymond Luebbers, CEO, president and co-founder of Remcom, the well known EM and antenna simulation software firm, has retired. Dr. Stephen Fast, former executive VP has assumed his duties. Dr Luebbers founded Remcom in 1994 while a professor at Pennsylvania State University. His co-founders were two of his graduate students, Scott Langdon and Christopher Penney. Dr. … [Read more...]
EMI Test Software Targets Precompliance Testing
R&S®ES-SCAN EMI test software from Rohde & Schwarz has been crafted especially for precompliance and precertification EMI testing. Designed for use with R&S® ESPI test receivers, this package delivers a 32-bit application for testing in accordance with commercial standards. Its state-of-the-art MS Windows-style, straightforward user interface allows for quick … [Read more...]
Simulation of In-vehicle Human Exposure to Electromagnetic Fields Due to On-board Transmitters
Numerical models can provide data from an enormous number of points and for a number of human simulants. Alastair R. Ruddle, Ph.D. MIRA Limited, Nuneaton, UK On-board transmitters are already commonly encountered in the vehicle environment: typical examples include mobile telephones, Bluetooth systems, and communications equipment used by the emergency services and armed … [Read more...]
Voltage Sag Testing for Commercial and Industrial Equipment
The ultimate goal for any product manufacturer is to make its product immune to voltage sags. Andreas Eberhard, Power Standards Lab Alameda, CA Modern equipment can be sensitive to brief disturbances on the AC power mains. Unfortunately, electrical systems are subject to a wide variety of power quality problems that can result in interruption of the production process, damage … [Read more...]
Aussie Researcher Says Managing Crosstalk Will Speed DSL
Dr. John Papandriopoulos, an Australian researcher, has announced a technique to boost broadband speeds on ordinary DSL lines by up to ten times. The Ph.D. thesis Papandriopoulos wrote at the University of Melbourne outlines an algorithm that reduces crosstalk interference on copper phone lines. Dr. Papandriopoulos will soon join the staff of Silicon Valley-based ASSIA founded … [Read more...]
PPM Becomes UK Distributors for Group 3 Technology, New Zealand
PPM Ltd has been appointed the exclusive UK Distributor for Group 3 Technology in New Zealand. These products allow a low cost point-to-point link for analog and digital information. A suite of software drivers for use with LabView, or other control software packages are also available, allowing users to drive and read back information with almost any type of transducer. This … [Read more...]
Using A Transmission Line Model To Analyze Shield Current Distribution Resulting From Bulk Current Injection (BCI)
Arthur J. Glazar, Life Senior Member IEEE Background Radio frequency (RF) signal energy is normally confined to the interior of a coaxial cable. RF currents on the surface of a cable shield are undesirable and generally indicate a problem. Shield surface currents can occur as the result of conducted susceptibility (CS) or radiated susceptibility (RS). Whatever their … [Read more...]
