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Antennas

Why Are There So Many EMC Standards?

 

Steve Hayes, TRaC Global, Worcestershire, United Kingdom; Jack McFadden, Wyle Laboratories, Huntsville, Alabama, USA; Steve O’Steen, Advanced Compliance Solutions, Atlanta, Georgia, USA; Kenneth Wyatt, Wyatt Technical Services, Woodland Park, Colorado, USA; David Zimmerman, Spectrum EMC Consulting, Eagan, Minnesota. October 2011 sees the end of the transitional period from … [Read more...]

Solar Panel Composed of Nano-Antennas Harnesses More Power from the Sun

 

A team of researchers at Tel Aviv University's Department of Physical Electronics and its new Renewable Energy Center are now developing a solar panel composed of nano-antennas instead of semiconductors. By adapting classic metallic antennas to absorb light waves at optical frequencies, a much higher conversion rate from light into useable energy could be achieved. Such … [Read more...]

EMC Standard for Radio Equipment and Services

 

ETSI EN 301 489-1 V1.9.2 contains the common requirements for radio communications equipment and associated ancillary equipment, in respect of Electromagnetic Compatibility (EMC).Product dependent arrangements necessary to perform the EMC tests on dedicated types of radio communications equipment, and the assessment of test results, are detailed in the appropriate product … [Read more...]

New Power Amplifier Delivers Reliability and Consistency

 

Teseq has expanded its broadband amplifier line to include a new Class A model that operates from 10 kHz to 400 MHz with a saturated power level of 110 W. The CBA 400M-110 uses gallium arsenide (GaAs) integrated circuit technology to provide better compression characteristics and increased efficiency.The new power amplifier is designed for demanding EMC testing environments … [Read more...]

Radar Array Sees Through Walls

 

MIT’s Lincoln Lab researchers have built a system that can see through walls from some distance away, giving an instantaneous picture of the activity on the other side. The researchers’ device is an array of antenna arranged into two rows — eight receiving elements on top, 13 transmitting below — and some computing equipment, all mounted onto a movable cart. But it has powerful … [Read more...]

Automotive Multilayer Varistor to Provide Fast ESD Response

 

AVX Corporation has expanded is automotive multilayer varistor (MLV) product offering to include a low capacitance 0603 device that provides sub-1nS response to ESD strikes. The AEC Q200-qualified Automotive AntennaGuard Series MLV devices deliver low insertion loss and low leakage current. The AntennaGuard Series is ideal for automotive applications, including RF circuits, … [Read more...]

Designing Electronic Systems for EMC: Grounding for the Control of EMI

 

There are two primary reasons for grounding devices, cables, equipment, and systems. The first reason is to prevent shock and fire hazards in the event that an equipment frame or housing develops a high voltage due to lightning or an accidental breakdown of wiring or components. The second reason is to reduce EMI effects resulting from electromagnetic fields, common impedance, … [Read more...]

A Time-Domain EMI Measurement System Up to 26.5 GHz with Multichannel APD Measuring Function

 

I. INTRODUCTION The advances in radio systems in the past and their ongoing progress has been joined by advances in measurement systems and, hence, they require further development of measurement and specification standards. Electric and electronic systems have to be designed and realized such that the escape of unwanted electromagnetic energy into the environment is … [Read more...]

Institute Opens Range for Antenna and Radar Cross Section Measurements

 

The Georgia Tech Research Institute (GTRI) has opened a new compact range that will be used for radar cross section measurements and antenna testing.  The new facility, which is shielded against electromagnetic interference, will be used for GTRI’s defense-related research projects and collaborations with outside organizations.The facility has a test zone that is approximately … [Read more...]

Two New Electromagnetic Titles

 

SciTech Publishing is introducing two new titles. “Electromagnetic Measurements in the Near Field, 2nd Ed” by Pawel Bienkowski & Hubert Trzaska outlines the fundamental principles and the procedures to ensure your tests and results contain the most accurate measurements possible. “Integral Equation Methods for Electromagnetics” by John Volakis & Kubilay Sertel is a … [Read more...]

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