TWT Amplifiers Meets Demands HIRF EMC Testing in Commercial AircraftA series of new high-power, pulsed TWT (traveling wave tube) instrumentation microwave amplifiers has been introduced by UK-based TMD Technologies, Ltd. These amplifiers have been optimized to meet the latest stringent demands of high intensity RF (HIRF) EMC testing. The PTC6000 and the PTC7000 TWTAs between … [Read more...]
Amplifers
EM Pioneer Dies at 92
Professor Emeritus John Roy Whinnery, former dean of engineering at the University of California, Berkeley, and a distinguished innovator in the field of electromagnetism and communication electronics has died at the age of 92. Whinnery’s earliest work focused on understanding discontinuities in electromagnetic wave devices. His research led to innovations in microwave … [Read more...]
Building a State-of-the-Art 5-Meter Chamber
An efficient shield room for automotive testing progresses from design to finished structure Michael Koffink, Bob Mitchell Intertek ETL Semko Littleton, MA Four years ago, we noticed a growing demand for EMC testing from the automotive industry. As cars and trucks now feature myriad on-board electronic devices, they are increasingly susceptible to stray emissions while … [Read more...]
Reverberation Chamber for EMC Testing
The reverberation chamber provides the most realistic simulation/equivalency for electronics functioning within a cavity Er-Ping Li, Ph.D.; Xing-Chang Wei, Ph.D., Electromagnetic Labs, Singapore National Institute of High Performance Computing Singapore Introduction The problem is familiar, but growing. The widespread and ever-growing use of electronic devices with high-speed … [Read more...]
Expanded Amplifier Line Delivers Reliable Performance in Demanding Environments
Five new broadband power amplifiers from Teseq operate from 0.8 GHz to 3.1 GHz and from 2 GHz to 6 GHz with power levels ranging from 30 W to 450 W. Three Class A models are based on gallium arsenide (GaAs) integrated circuit (IC) technology and offer significantly better compression characteristics and increased efficiencies than earlier silicon-based low power amplifiers. The … [Read more...]
RF Conducted Immunity System Tests to DO 160D & E and Other Exacting Standards
The Model C100400 from AR RF/Microwave Instrumentation is a fully contained system for testing RF conducted immunity. It contains all the instruments need to perform conducted immunity testing for the MIL-STD-461D/E, DO 160 D/E, and IEC 61000-4-6 specifications. The system includes a signal generator, a two-channel power meter, and a 100-watt nominal AR amplifier (10 kHz to 400 … [Read more...]
AR Application Note #40A: Subampability
AR’s amplifier experts have offered an Application Note #40A on Subampability, denoting the option of adding more power to existing amps. This unique term and concept developed by AR ranked as one of the top ten downloads during 2008.Check it out now. … [Read more...]
Updates on the New Release of IEC 61000-4-3 Edition 3
Continuous efforts are needed to maintain a consistently repeatable test Jason Smith, AR Worldwide Souderton, PA The IEC 61000-4-3 standard on radiated electromagnetic field immunity has long been used in order to satisfy one key criterion of the European Union’s requirements for obtaining the CE mark. It is usually used in conjunction with a specific product test standard … [Read more...]
Omni-Directional Antennas Target Broadband Spectrum Monitoring
Models 3180, 3181, and 3182 from ETS-Lindgren are a series of omni-directional, biconical antennas for monitoring broadband spectrum. In addition to receiving signals from every direction around the antenna axis, Models 3180 and 3182 feature optimized elements that forestall any splitting of the main radiation beam in the elevation cut. Models 3180 and 3182 cover the … [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...]
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