Triad RF Systems designs and manufactures
RF power amplifiers and systems. Triad
RF Systems comprises three partners (hence 'Triad') with
over 40 years of accumulated knowledge of what is required to design,
manufacture, market, sell and service RF/Microwave amplifiers and amplifier systems.
"We view Triad more as a technology partner than a vendor for our line-of-sight communications
product line." Please check to see how we can help your project
ConductRF is offering standard
D38999 RF coaxial
cable assembly configurations with RF Contacts including; BMA to 20 GHz SMPM
to 60 GHz Size #8 to 18 GHz Size #12 Mil-Spec. Size #16 Mil-Spec. Cable choice
include Low Loss Flexible and standard RG styles. Custom marking and also ruggedization
coverings including Nomex weave available ...
"Qualcomm, China Mobile and ZTE combined their
5G expertise and demonstrated what's being described as the world's first end-to-end
5G New Radio (NR) Interoperability Data Testing (IoD) system with
a data connection based on 3GPP Release 15. Conducted at China Mobile's 5G Joint Innovation
Center, the demo used ZTE's 5G NR) system with a data connection based on 3GPP Release
15. Conducted at China Mobile's 5G Joint Innovation Center, the demo used ZTE's 5G NR)
system with a data connection based on 3GPP Release 15. Conducted at China Mobile's 5G
Joint Innovation ..."
Anatech Electronics offers the industry's largest portfolio of high-performance
standard and customized RF and microwave filters and filter-related products for military,
commercial, aerospace and defense, and industrial applications up to 40 GHz. Anatech
has introduced a two new filters and a gas tube surge arrestor for your convenience:
a surface mount 32.0 MHz SAW filter, a leaded 1.25 MHz crystal filter, and a cool-looking
gas tube surge arrester with SMA connectors ...
"UK government launches
Year of Engineering campaign to inspire next generation of engineers.
The UK government has pledged to work with hundreds of industry partners throughout 2018
to encourage young people and their parents to take a closer look at engineering. Launched
in response to an estimated shortfall of 20,000 engineering graduates a year, and growing
reports from industry that the skills shortage is having a significant impact on productivity
and growth the so-called 'Year of Engineering' hopes to galvanise ..."
Reading through the news items in the vintage
electronics magazines provides a mixture of important historical facts and figures along
with some predictions on the future of the industry. Some of the predictions turn out
to be amazingly accurate, even though in retrospect they might seem obvious. Take, for
example, Sylvania VP Dr. Robert Castor's foresight about how, "the future growth of the
semiconductor industry lies in a major switch from the production of individual components
to solid-state subsystems that can be used as building blocks in electronic designs."
"Well of course," you might be temped to say; however, at the time there were still significant
hurdles to overcome related to material ...
"IBM quantum computers with 20
superconducting qubits will soon be available for online use by the
firm’s clients – according to the US-based company. The quantum systems will be running
by the end of 2017 and IBM also says that it has built and tested a prototype quantum
computer with 50 qubits. Part of the IBM Q family of quantum computers, the new systems
are based on transmon qubits. These store quantum information in terms ..."
Earthlink offered a deal on keeping my original
e-mail address, so I will be retaining the long-time
after all. Please ignore the previously announced firstname.lastname@example.org
address. I apologize once again for any inconvenience. Please change your records as
needed. Thank you.
"The Danish automotive designer behind cars like
the Aston Martin V8 Vantage and the BMW Z8 re-launched his electric car startup this
year and announced that the next car out the gate would be powered by a 'breakthrough'
in solid state batteries, one with a range of 500 miles and a charge time of one minute.
Originally, Fisker and his team were intending to use a brand new
graphene-based hybrid supercapacitor technology but eventually settled
on the standard lithium-ion instead. However ..."
Another era, sadly, has come to an end. H. Ward
Silver (aka Ward Silver, NØAX) has announced the end of
his monthly column, "Hands-On Radio,"
in QST magazine. The title of each column was enumerated as "Experiment #nnn,"
followed by the subject. To wit, "Experiment #179 Maxwell's Equations - The Wave Emerges"
is Mr. Silver's final column, appearing in the December 2017 QST. "Hands-On
Radio" topics ranged in intensity from relatively simple discussion on calculating power
dissipation in resistors, capacitors, and inductors to more heady treatises on subjects
like electromagnetic fields within coaxial cable and waveguide to Maxwell's equations.
Mathematics, too ...
Prior to the advent of high frequency solid state
devices like Gunn diodes, working at or above a couple GHz - even at low power - required
the use of cavity oscillators such as klystrons and magnetrons. They were bulky, espensize
and electrically very inefficient. This article outlines the theory of bulk oscillators
as developed by Dr. John A. Copeland, of Bell Labs, and points out the peculiarities
of the LSA (limited
space-charge accumulation) mode that makes it possible to obtain 20 milliwatts of
power at 88 GHz. Use of gallium arsenide (GaAs) enabled designers to construct receiver
circuits into the mm-wave region without the need for klystrons, thereby reducing cost ...
"Scientists have taken an important step towards
'twisted' light as a form of wireless, high-capacity data transmission
which could make fiber optics obsolete. Scientists can 'twist' photons - individual particles
of light - by passing them through a special type of hologram, similar to that on a credit
card, giving the photons a twist known as optical angular momentum. While conventional
digital communications use photons as ones and zeroes to carry information, the number
of intertwined twists in the photons ..."
Whitepapers, pamphlets, books, magazines, and
chapter examples listed here are a small sample of a lot of new items that are offered
for FREE to qualified users through
TradePub. Whitepaper topics include careers, manufacturing, and engineering,
while magazine titles include
Microwave Engineering Europe,
Electronic Design, and
Microwave Product Digest. Note: I earn a few pennies
(literally) when you download one of these or the many
other pubs available, so please help yourself ...
"So far, the FCC appears to have struck a balance
between the goals of terrestrial wireless and satellite interests, at least based on
early reads of the millimeter wave spectrum item it passed at its open meeting Thursday.
Satellite Industry Association (SIA) announced that it is initially
encouraged by the FCC order regarding the future deployment of wireless services in spectrum
bands above 24 GHz. In a news release, the FCC stated it will adopt rules regarding the
use of spectrum ..."
Electro-Photonics LLC is a global supplier of
RF & Microwave components.
Our products include SMT hybrid and directional couplers, wire bondable passive components,
filters, and very useful test boards for evaluating components (spiral
inductors, single-layer capacitors). The Electro-Photonics
team can support your small R&D design requirements with RF & Microwave test
fixtures and save you valuable design and characterization time. Please take a moment
to visit their website and see how your project might benefit
Pulse Shaping in High Power Solid State Jamming Amplifiers When: Thursday, November
30, 12 pm to 1:30 pm Location: Marriott Marquis Hotel Marquis Ballroom. Pulse shaping,
as it is done today, is an effort to fix fidelity issues caused by the transmitting amplifier
and is accomplished by a combination of imperfect methods, most external to the amplifier.
In this technical session, Paulo Correa will describe a new high power amplifier architecture
with built in real time feedback that is capable of matching the input signal shape,
minimizing droop, overshoot, ringing, rise ...
For the sake of avid cruciverbalists amongst us,
each week I create a new technology-themed crossword puzzle using only words related
to engineering, science, mathematics, chemistry, physics, astronomy, etc. At least 10
clues in this puzzle with an asterisk (*) are pulled from this past
week's (11/13 - 11/17) "Tech Industry Headlines" column on the RF Cafe homepage (see
the Headline Archives page for help). Enjoy! ...
ARRL Headquarters Closed for Thanksgiving on November 23 & 24
FDA Approves World's First Pill with Embedded Sensor
Radio Amateurs in Colombia, Germany Get New or Expanded Bands
New Firefox Runs Like a Rabbit (I'm a FF user)
Renaissance of the Iron-Air Battery
Our Love Affair with Digital Is Over
AT&T Calls for Quick Auction of 28 GHz and 37-40 GHz Bands
Why Hot Water Freezes Faster Than Cold Water (I thought that was a myth)
GaN Reveals Another Secret
China Reserves Spectrum for 5G
QuinStar Technology designs and manufactures
mm-wave products for communication, scientific, and test applications
along with providing microelectronic assembly, rapid prototyping, and mass customization.
• Amplifiers • Receivers • Oscillators • Switches • Attenuators • Circulators • Isolators
• Filters • Waveguide • Antennas • Phase Shifters • Transceivers • Radar Subsystems •
Mixers • Detectors • Transducers. QuinStar specializes in cryogenic
amplifiers, circulators, and isolators. Please visit QuinStar today to see how they can
help your project ...
Free webinar title: "Antenna Design for a Connected Home Multimedia Device." When: November
21, 11:00 am EST. Presenter: Dr. Marc Rütschlin. "As the Internet of Things establishes
itself, more and more connected devices are finding their way into the modern home. The
'connections' are of course wireless and antennas are the key enabling technology which
provides that wireless connectivity. This webinar will discuss the case of a smart projector,
exploring how antennas can be designed given the ..."
Akin to how the National Company ran a long series
( a couple hundred altogether) of infomercial type ads in the ARRL's QST magazine
from the 1930s through the 1950s, Mallory had its "Tips
for Technicians" run in Electronics World (and maybe other electronics magazines
of the era). Being a major capacitor manufacturer, its ads featured brief tutorials on
various types of capacitors, their characteristics, and how they should be used in circuits
- both for new design and when replacing capacitors in existing equipment ...
Well, these are the last three Radio Service Data
Sheets I have from my collection of vintage electronics magazines. That makes a total
of 219 that I have scanned and posted over a span of 3 years. At some point I will bid
for other editions on eBay. They can cost $5 or more apiece, so the cost adds up quickly.
Model No. 36 6-Tube Dual-Wave Auto-Radio
Stromberg-Carlson 10 Tube No. 82 All-Wave Receiver
155 5-Tube Super Fadalette A.C.-D.C. Set
MegaPhase, a leading provider of RF and microwave interconnects,
is pleased to announce that
Maddiel Gonzalez has joined the MegaPhase Team as Engineering Manager. Maddiel's
career has involved developing state-of-the-art RF connectors for space, military and
commercial applications. Maddiel led a team of technical staff in the design of RF Interconnect
products in his prior position at another cable and connector company. His design ...
Given the popularity of working
code to make them playable online. 4 levels of difficulty can be chosen, depending on
your ability. Sudoku (so͞o dōko͞o') puzzles, despite their Japanese name, were not actually
invented in Japan. According to the history note in
they first appeared in France, and then popularized in America. Regardless of its origins,
Sudoku is an immensely popular game today ...
Brigadier General David Sarnoff's name was well
known to most people in the realm of communications up to the time of his death in 1971.
His technical and leadership skills were recognized and rewarded throughout his very
accomplished lifetime in both military and civilian venues. This brief biography of Sarnoff
was printed in the March 1972 issue of Popular Electronics magazine. As with
many people of high acclaim, he had a few run-ins with other notable people during his
career - the most famous of which was the Battle of the Airwaves fought between Edwin
Armstrong and him over FM versus AM ...