"In a paper titled 'Deterministic Line-Shape Programming
of Silicon Nanowires for Extremely Stretchable Springs and Electronics' published in
the Nano Letters, an international team of researchers from Nanjing University, Peking
University, and CNRS-Ecole Polytechnique has demonstrated a new route to designing silicon-based
flexible electronics in a scalable way. Rather than starting from Si wafers cut-out from
drawn silicon ingots, they describe in their paper a nanoscale-version of the crystal-pulling
methods used to grow ..."
"Researchers at the National Institute of Standards
and Technology (NIST) have demonstrated that
quantum physics might enable communication and mapping in locations
where GPS, cell phones, and radio is not reliable or don't work at all, such as indoors,
in urban canyons, underwater, and underground. NIST announced the technology advance
on January 2. The technology may have marine, military, and surveying applications. The
NIST team is experimenting with very low frequency (VLF) digitally modulated magnetic
According to author R.R. Freeland, manufacturing
processes for radio-quality manmade crystals saw major improvements toward the end of
World War II. At the time, the process was highly manual-intensive, as can be seen
in this really nicely done 1940s video titled "Crystals Go to War." Prior to the use
of crystals as frequency-determining devices, inductor-capacitor (LC) tank circuits were
the dominant configuration. There were actually other frequency-determining schemes like
spark gaps and even vibrating mechanical reeds. As you might guess, anything less than ...
Antenova Ltd, manufacturer of antennas and RF antenna
modules, is showing a brand new pair of high performing
4G/LTE antennas which are suitable for PCBs as small as 60mm, at
the consumer electronics show CES. The two antennas can also be used in 3G and MIMO applications.
The two antennas are similar - the difference being that Inversa is built for the USA
market while Integra is for European and Asian markets. Both antennas are available in
left and right versions to provide more options for placement on the PCB, and can be
At least 10 clues with an asterisk (*)
in this technology-themed crossword puzzle are pulled from this past week's (1/8 - 1/14)
"Tech Industry Headlines" column on the RF Cafe homepage (see
the Headline Archives page for help). For the sake of all the avid cruciverbalists
amongst us, each week I create a new technology-themed crossword puzzle using only words
from my custom-created related to engineering, science, mathematics, chemistry, physics,
"Many engineers possess unique traits such as initiative
and eagerness to learn that help make them more successful in their careers.
Effective engineers use their resourcefulness and initiative to find
solutions. They identify problems, but they aren't limited to finding, fixing, and troubleshooting.
They assess their current situations and continually seek to improve upon the status
quo. They listen and learn. They ask for ideas, consider possible solutions, and then
synthesize opinions and facts to create appropriate responses. Here are some essential
qualities found in the most successful engineers ..."
TGIF. If this past week has had you on edge, cheer
up -the weekend's almost here. Once the final fire has been put out - or is at least
contained - give yourself a break and enjoy these
comics from a vintage issue of Electronics World magazine. My favorite is
the one on page 83 which is a takeoff on the well-worn comedy meme of the husband trying
to sneak back into the house after a night out with the boys. This poor guy has been
outwitted by his wife, who evidently has a bit of tech savvy working for her ...
"It is often said that 'two heads are better than
one;' for the Air Force, leveraging the expertise and insights of academia has led to
advances in materials development and processing destined to be a game changer for the
future fight. A collaboration between scientists at the Air Force Research Laboratory
and Harvard University's Wyss Institute for Biologically Inspired Engineering has resulted
in a new method for digital design and printing of stretchable, flexible electronics.
The process, called
Hybrid 3-D printing, uses additive ..."
Prior to the big push for leadless solder in the
1990s, probably 99% or more of the solder used by industry, tradesmen, and hobbyists
contained lead. The
Sn-Pb (and 63/47) alloy, both with and without a rosin or acid core, was used for
electrical work, electronics, plumbing, copper guttering, radiators, and many mechanical
assemblies made of steel, brass, copper, tin, etc. Between World War I, "The War
to [Not] End All Wars," and World War II, the electronics industry exploded in growth.
All realms of society and government became utterly dependent on products assembled using
solder. Both tin and lead were abundantly available ...
Saelig Company announces the availability of the
Triarchy Technologies VSA6G2A Vector Spectrum Analyzer - an economical
USB RF tool that plugs into the USB port of a PC and is controlled with the provided
PC application software. It offers almost all of the functionality of a benchtop spectrum
analyzer. Its frequency range of operation is from 100 Hz to 6.2 GHz, with
an amplitude measurement range of -140 dBm to 24 dBm. The RBW (resolution bandwidth)
range is from 0.2 Hz to 10 MHz and the noise level (DANL) is as low as -140 dBm.
The VSA6G2A is very compact (4" x 1" x 1") and easy to use. The software user ...
"China has been leading the world in construction
of solar energy plants, building dozens of new solar farms over the past few years. In
addition to building standard solar farms, the country has also been experimenting with
more innovative ways to draw energy from the sun. Recently, the city of Jinan built China's
solar road, which lasted about a week until someone stole it. The
road opened on December 28, and on January 2 an inspection team noticed a piece of the
road was missing. The piece was small, measuring only 6 inches wide ..."
Are You Ready for 5G? Unlocking 6 Key Measurement Challenges for
5G Radio Validation. Date: January
24, 2018 Time: 1pm ET.
Abstract: "The 5G New Radio era officially
begins with the publication of 3GPP Release 15 in December 2017, which defines a 5G overlay
onto the existing 4G networks. As 5G and emerging wireless standards continue to evolve,
wireless designers need flexibility to troubleshoot leading-edge issues in a variety
of spectrum bands as well as high performance for more rigorous R&D validation. Join
Daren McClearnon, 5G ...
"Unique thermoelectric properties in cesium tin
iodide could reduce heat buildup in electronic devices. A collective rattling effect
in a type of crystalline semiconductor was discovered to block most
heat transfer while preserving high electrical conductivity - a rare
pairing that could reduce heat buildup in electronic devices and turbine engines. The
traits were discovered in a class of materials known as halide perovskites, which are
also considered promising candidates for next-generation solar panels ..."
For the benefit of RF Cafe visitors, I have posted
at no charge to companies many employment announcements for engineers, technicians, managers,
and other technical positions. This electronics technician job was located at COMSAT
Laboratories' (Communications Satellite Corporation) Washington,
D.C., facilities since 1969 was prior to when the then-futuristic-looking Clarksburg,
Maryland, campus was established. In the early 1990s, I worked as an RF design engineer
for a few years at COMSAT Laboratories in Clarksburg. About a decade earlier, before
earning my BSEE degree, I was working as an electronics technician at ...
SiteFlex Range of ruggedized
Field RF Test Cables are designed specially for Field Test Engineers working in applications
that require on site RF Testing. These cables are directly compatible with handheld network
and spectrum analyzers. Options include DC-7 GHz through DC-50 GHz. The ruggedized
construction includes anti-torque connectors that are firmly attached to the cables external
armor. Crush resistant SF cable can withstand 1,200 lbs./sq.in. Methuen, MA, is
ConductRF's principle U.S. manufacturing location ...
A Note to Members from ARRL President Rick Roderick, K5UR
EU Outlines Supercomputer Plan
DARPA Looks to Radio for Better Network Resiliency
UK Telcos Make Record Compensation Payouts in 2017
Toy Vendor VTech Hit with FTC Fine for Child Privacy Breach
FCC Launching Full Inquiry into False Hawaii Missile Alert
OTA, Far-Field RF Charger Gets FCC Approval
Microsoft Tweaks Edge Browser in Wake of Meltdown, Spectre CPU Flaws
Nominations Sought for Philip J. McGan Memorial Silver Antenna Award
Qorvo® Selected for Qualcomm Cellular-V2X Automotive Reference Design
FCC Opens Era of Wireless Charging 'At-Distance'
Samsung Rise in U.S. Patents
QuinStar Technology, a major supplier of millimeter-wave
products for communication, announces that their R&D team has recently achieved a
new milestone for GaN power amplifiers operating above 100 GHz. Using multiple
GaN MMIC chips in a combiner network, we have achieved an output power of 3 W at
114 GHz. These GaN-based power amplifiers will soon be available for commercial
everythingRF is providing up-to-the-minute coverage
of events at the Consumer Electronics Show (CES) 2018. CES has been the launch pad
for new innovation and technology for the last 50 years. The event is held in Las Vegas
every year and is the world’s gathering place for everyone in the business of consumer
technologies. It is where next-generation innovations are introduced to the marketplace.
check in with everythingRF for news important to RF Cafe visitors ...
"A Korean tech giant on Thursday announced new
robots that take aim squarely at the jobs of many services industry
workers around the globe. There have long been predictions that advances in artificial
intelligence and automation could end up eliminating millions of jobs over time, and
tech companies have been testing robots to carry out a variety of tasks - from working
in a pizza parlor to making deliveries that could greatly affect the services industry
in the future. For its part, South Korean giant LG Electronics is the latest company
that is ..."
Why rent test equipment from Axiom? Get
test equipment without a capital budget. Tax benefits - the expense of a rental can
be deducted immediately. Protects you against product obsolescence. Save time and money
with quick delivery. Try equipment out before committing a lot of money to a purchase.
Save time and money on maintenance costs (which are the responsibility of the rental
company). Please contact Axiom today for your rental needs ...
"There's more to creating a PCB prototype than
meets the eye. Do you have any PCB prototype successes or disasters that you would care
to share with the rest of us? Many of my friends are involved in designing silicon chips
in the form of ASICs, ASSPs, and SoCs, so if you say 'prototyping' to them, it means
something very different to someone who wishes to create a prototype of a design that
will be realized on a printed circuit board (PCB). In this column, we will consider four
of the things that you really should consider before prototyping PCB ..."
Nuclear energy was a big topic in the 1960s and
1970s as it was believed to be the future of electrical power generation for the world
(at least up until the 3 Mile Island and Chernobyl incidents occurred). Ships and submarines
were being powered by reactors that allowed them to run for months at a time without
refueling, atmospheric emissions were practically zero, and the fuel source was abundant
(albeit not simple to obtain). Medical and space applications were increasingly dependent
on a greater knowledge of radiation and its effects on humans, plants, animals, and electronics.
Many people by that ...