Using a polymer termination for multilayer capacitors forestalls damage during PCB assembly Matthew Ellis For safety critical applications such as aerospace and military, failure caused by a short circuited capacitor could be disastrous. One of the most reliable components for surface mount communications is the multilayer ceramic capacitor, in which a block of ceramic … [Read more...]
Military
The Importance and Methods of Full Wave Simulation Validation
Regardless of the accuracy of the modeling tool, each modeling exercise requires some level of validation before simulation results can be trusted. Bruce Archambeault, Ph.D. and Samuel Connor IBM Research Triangle Park, NC The need to validate simulations and model results has never been more vital. Full-wave and quasi-static simulation tools using many different modeling … [Read more...]
RF Microwave Manufacturer Awarded $1.4 Million Order for High Power Amplifiers for Jamming
In another story touching on the art of jamming, or purposeful interference, RF microwave manufacturer Comtech Telecommunications Corporation has announced that its Melville, NY-based subsidiary, Comtech PST Corporation, has received a $1.4 million order from a domestic prime contractor to supply broadband, solid-state, high power radio signal jamming. These amplifiers, which … [Read more...]
Test Software Complies with a Wide Range of Standards
From on-site measurements to EUT control and monitoring, Nexio software covers a wide range of applications and offers more than 300 measuring device drivers. Designed, developed, and supported by specialists, Nexio’s BAT-EMC test automation software is the all-in-one solution for both emissions and immunity tests and is now widely used in the civil, automotive, military, and … [Read more...]
Test Software Complies with a Wide Range of Standards
From on-site measurements to EUT control and monitoring, Nexio software covers a wide range of applications and offers more than 300 measuring device drivers. Designed, developed, and supported by specialists, Nexio’s BAT-EMC test automation software is the all-in-one solution for both emissions and immunity tests and is now widely used in the civil, automotive, military, and … [Read more...]
Improving the Way We Measure Insertion Loss
A proposed set of new test methods may provide more accurate attenuation data Kermit O. Phipps, Philip F. Keebler, Bradford R. Connatser Many commercial and industrial electrical environments contain equipment that is sensitive to radio-frequency (RF) interference. Theft detectors, digital sensors, and medical-telemetry systems have all been known to malfunction in the … [Read more...]
Performing GR-1089-Core Lightning and Power Cross Test
A review of the test methodologies and equipment required to perform GR-1089-CORE lightning and power cross testing James Press, Jennifer Lawrence, Mark Betts, John Ngo ABSTRACT The pitfalls and difficulties in performing testing in accordance with GR-1089-CORE, Section 4 are discussed. A brief description of the GR-1089-CORE document is presented to familiarize the reader … [Read more...]
EMC in Space …
Successfully dealing with EMC in space systems requires strong EMC engineering Daryl Gerke, PE, and William Kimmel, PE Many of us in the EMC business came of age during the “space race” of the 1950s, 60s, and 70s. We well remember names like Sputnik, Mercury, Gemini, and of course, Apollo. Some of us in the EMC business have even been fortunate enough to spend some (or all) or … [Read more...]
Portable ‘Pain Ray’ Guns No Longer Science Fiction
Raytheon now markets a more portable version of its non-lethal “pain ray” weapons. The “Silent Guardian,” a part of Raytheon’s Active Denial System, uses high-frequency radio beams that make human targets feel like they are on fire. The futuristic weapon produces high-frequency millimeter waves directed toward the target by an antenna that looks like a radar dish. It directs a … [Read more...]
Lodestone Authorized Arnold Distributor of Crystal-XTM – Soft Magnetic Powder Cores
Arnold Magnetics has developed and is proud to release Crystal-XTM as a new addition to its soft magnetic powder core product line. Crystal-XTM alloy powder cores have low core loss and excellent DC bias characteristics, which contribute to highly efficient switching. Crystal-XTM also offers significant size & weight reduction compared with existing powder core materials such … [Read more...]
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