The ALBA synchrotron facility near Barcelona, Spain, has commenced operations as a research tool to observe the magnetic characteristics of nanoparticles of interest for their superconductor properties. One such area of research will focus on ferrite nanoparticles and has the potential to improve electrical transmission systems. Researchers are carrying out these experiments … [Read more...]
Band Reject Filter Eliminates AWS Interference at ENG-RO Sites
API Technologies Corp introduced the CMD719 band reject filter designed to eliminate Advanced Wireless Services interference of electronic news gathering receive only sites. The Band Reject Filter eliminates brute force overload interference of ENG-RO sites caused by AWS operators transmitting at 2110.6 to 2121.5 MHz, and its group delay does not degrade digital ENG … [Read more...]
RF Channel Simulator for Satellite Wideband Signal Assurance
Kratos Defense & Security Solutions, Inc. announced the launch of its 250 MHz T400CS Wideband Channel Simulator, which precisely replicates the real-time RF conditions that can be expected in wideband SATCOM, aircraft, missile, and UAV missions. The T400CS is a hardware-in-the-loop instrument that can be inserted between modems, receivers and transmitters, or other … [Read more...]
High-Frequency RF and Microwave Multilayer Ceramic Capacitors
Vishay Intertechnology, Inc. introduced a new series of surface-mount multilayer ceramic chip capacitors offering high self-resonance, a high Q factor of 2000, and a low dissipation factor of 0.05 % for operation in high-frequency commercial applications. The MLCCs reduce signal loss and energy consumption in power amplifier modules, VoIP networks, cellular base stations, GPS … [Read more...]
Proposed Compromise for the 2.3 GHz Band
AT&T and Sirius XM are asking the FCC to adopt new rules to limit interference between Satellite Digital Audio Radio Services and Wireless Communications Services, both of which have been operating for the past 15 years in the 2.3 GHz band. Specifically, the new rules provide for everything from the prohibition of mobile transmitters in the WCS C- and D-blocks to AT&T's … [Read more...]
Teseq USA & Germany Service Centres added to MILMEGA Global Support Network
In support of the only 5-year, fully expensed warranty in the industry, Teseq USA and Germany have completed the MILMEGA 3-day service training course. Held at MILMEGA on the Isle of Wight, the 3-day training course covered all aspects of servicing and maintenance of MILMEGA amplifiers. Servicing of MILMEGA products sold into the USA and Canada will now take place at the … [Read more...]
Another Look at Broadband Bandwidth Bandwidths
The last comment I made was regarding those perfect rectangular filters that we always describe with such reverence. But as I said, they don’t exist. Taking a receiver as an example, the filter amplitude versus frequency characteristics are measured by sweeping a narrowband signal through the passband frequency range of the circuit. Typically the passband width is … [Read more...]
EMC Sensitive Switching Buck Regulators
On Semiconductor introduced their NCV890 series of switching buck regulators for space-constrained, electromagnetic compatibility sensitive automotive entertainment applications. The series delivers leading conversion ratios for battery connected switch-mode power supplies. The switching frequency allows the use of smaller, less costly inductors and capacitors for both the … [Read more...]
Software Release Offers 3D Models of Electrical Performance
Agilent Technologies Inc. announced the latest release of its Electromagnetic Professional software. EMPro 2012 will make it easier to create 3-D models and analyze the electrical performance of packages, connectors, antennas, and other RF and high-speed components. Low-frequency analysis algorithm optimizes accuracy below 100 MHz, including at DC, in finite element method … [Read more...]
Microwave Coaxial Cables Enhance Shielding Effectiveness
Temp-Flex LLC announced the availability of microwave coaxial cables designed for high-bandwidth applications using proprietary processes. Designed for superior monitoring and control of radar, military vehicles, satellite, space, missile, RF ablation and test and measurement equipment, Temp-Flex coaxial cable solutions are insulated with a fluoropolymer dielectric. A helically … [Read more...]
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