RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling
2 MB. Its primary purpose was to provide me with ready access to commonly needed
formulas and reference material while performing my work as an RF system and circuit
design engineer. The World Wide Web (Internet) was largely an unknown entity at
the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps
while typing up your telephone line, and a nice lady's voice announced "You've Got
Mail" when a new message arrived...
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Engineer's Survival Kit appeared in my RF Cafe Twitter
feed, I though it was a gag item, but it turns out to be a very useful experimenter's resource for mitigating
EMI/RFI issues, provided at no cost by ARC Technologies - at least for now. It comes with a variety of RF absorber
materials in different thicknesses and form factors that address frequencies from 50 MHz through 110 GHz.
sheets of foam-based material are good, but what caught my attention - and is the reason I bothered to post this
promo - is the heat-shrink tubing product. I have never seen EMI/RFI shielding in that format before. It should
be very effective in preventing interference leakage into an assembly via a power and/or signal cable connector
port or bulkhead feedthrough. It won't be much help if the interference is already on the wire before it hits the
shielding, but it will complete the integrity of the Faraday shield action of a metal enclosure.
"ARC Technologies Inc. offers a complete range of custom and standard absorber products that provide solutions
to the diverse RF and EMI problems facing today's military, aerospace, and commercial electronics design engineers.
We are dedicated to understanding our customer's needs, delivering quality products on-time, and engineering innovative
solutions. Whether a customer is facing interference problems at 50 MHz or 110 GHz, nearfield or farfield, narrowband
or broadband, we have an absorber product or will develop an application-specific product to meet its requirements.
Posted on February 20, 2015
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