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Tech Industry Headlines

Tech Industry Headlines - RF Cafe- Archive -

• FCC Considers Small Cell Guidelines for States

• HMD Global Raises $100M for Nokia Smartphone Reboot

• Most Researchers Disclose Their Results Before Publication

• French Gov Congratulates Itself for Operator Investments

• Chain Cuts Auto Import Tariff from 25% to 15%

Internet of Trash: IoT Has a Looming E-Waste Problem

• FCC Proposes $5.3M Fine for Slamming / Cramming

• U.S. and China Close to Finalizing ZTE Deal

• Qualcomm, Facebook to Trial Fixed Wireless Access at 60 GHz

• Qualcomm Unveils 5G NR Solution for Small Cells

Gowanda Expands Magnetics Offerings with Acquisition of HiSonic

Gowanda Expands Magnetics Offerings with Acquisition of HiSonic - RF CafeGowanda Components Group is pleased to announce that its offerings of RF and microwave passive magnetic components are expanding in connection with the acquisition of HiSonic in Olathe, Kansas. "HiSonic's designs, technologies and customers complement those within our Magnetics Division," said GCG CEO Don McElheny. "The synergy in our capabilities and applications will enable us to offer a broader range of innovative inductor and transformer solutions to design engineers in commercial, medical, microwave, military, space and other markets around the world ..."

Achieving Unprecedented Frequency Control in Miniature Lasers

Achieving Unprecedented Frequency Control in Miniature Lasers - RF Cafe"Only a few decades ago, finding a particular channel on the radio or television meant dialing a knob by hand, making small tweaks and adjustments to hone in on the right signal. Of course, we now take such fine tuning for granted, simply pressing a button to achieve the same effect. This convenience is enabled by radio frequency synthesis, the generation of accurate signal frequencies from a single reference oscillator. The need for better radar in World War II drove the development of radio frequency control, and its miniaturization in subsequent decades ..."

How to Get the Most out of Your Key and Bug

How to Get the Most out of Your Key and Bug, July 1966 Popular Electronics - RF CafeWith a fair helping of chagrin, I admit to being a "10-4 Good Buddy" type of Ham radio operator. That moniker is applied liberally by pre-1991 (February 14, to be exact) amateur radio licensees to post-1991 licensees because that was the year in which the FCC no longer required aspiring Hams to pass a Morse code proficiency test for an entry level license. It was a sort of Valentine's Day gift. In 2003, the ITU announced the rescinding of its code requirement and allowed countries to set their own standards. By 2007, General and Amateur Extra exams no longer required code tests. I earned my Technician license in 2010 ...

New Book: Technologies for RF Systems

Technologies for RF Systems - RF CafeWritten by Terry Edwards, "Technologies for RF Systems" is a comprehensive resource provides an introduction to the main concepts, technologies, and components in microwave and RF engineering. This book presents details about how to design various amplifiers, circuits, and chips for communication systems. It offers insight into selecting appropriate ADC and DAC technology. Several worked examples are found throughout the book. This book provides a summary of 21st century RF systems and electronics and discusses the challenges of frequency bands and wavelengths, software-defined radio (SDR) and cognitive radio. RF semiconductors are covered ...

Magnetic Lattice Material Promises Dramatic Increase in Battery Life

Magnetic Lattice Material Promises Dramatic Increase in Battery Life - RF Cafe"A new magnetic lattice material developed by researchers at the University of Missouri could be used to increase the battery life of electronic devices by more than a hundred times, it is claimed. Singh's team developed a two-dimensional, nanostructured material created by depositing a magnetic alloy, or permalloy, on the honeycomb structured template of a silicon surface. The new material conducts unidirectional current, or currents that only flow one way. The material also has significantly less dissipative power compared to a semiconducting diode, which ..."

Lafayette Radio Electronics Advertisement

Lafayette Radio Electronics Advertisement, January 1965 Popular Electronics - RF CafeA lot of nostalgia gets waxed here on RF Cafe, to which frequent visitors can readily attest. Old timers (if you're not one now, you some day will be) often like to see remembrances of days of yore, the halcyon days of past hobbies, family, long naps, school (yuk), vacations, and other pleasurable times. Hopefully, you already have or will soon have a few of your own. This 3-page Lafayette Radio Electronics spread from a 1965 issue of Popular Electronics magazine is typical of what what avid electronics hobbyists would have read and drooled over with so many great items in the offering. If you were like me, the cost of most of the things I wanted were well outside my budgetary reach. Prices for electronics gizmos were quite high ...

everythingRF Adds Searchable RFID Vendor Catalog Resource

everythingRF Adds Searchable RFID Vendor Catalog Resource - RF Cafeeverything RF has created the largest database of searchable RFID products. We have compiled complete catalogs from the leading RFID manufacturers across 6 categories and make the products searchable by specification: RFID antennas, RFID reader ICs, RFID reader modules, RFID readers, RFID tag ICs, and RFID tags. everythingRF has also created parametric search tools in each category and are now adding more products and companies to the system ...

Making Radio Chips for Heck

Making Radio Chips for Hell - RF Cafe"There are still some places the Internet of Things fears to tread. Researchers at the University of Arkansas and the KTH Royal Institute of Technology, in Sweden, are building a radio for those places. This month, in IEEE Electron Device Letters, they describe a mixer, a key component of any wireless system, that works just fine from room temperature all the way up to 500 ºC. It's the first mixer IC capable of handling such extremes. Of several projects 'one of the more sexy is trying to put a rover or some sort of instrument on Venus that will last for more than two hours ..."

Reverse Current Keeps Ferry Afloat

Reverse Current Keeps Ferry Afloat, December 1965 Popular Electronics - RF CafeA news story with a title about a boat and reverse current is more likely to be referring to water flow in a river or stream than about electrical current in a conductor. Having grown up in a neighborhood next to a tributary of the Chesapeake Bay, I spent quite a bit of time around boats, both large and small. Salt water is particularly destructive to metal hulls due to cathodic corrosion, exacerbated by the salt water's conductivity. While working as an electrician in the 1970s, I installed electrical supplies for a few dockside cathodic protection systems that probably functioned like the one described in this 1965 issue of Popular Electronics magazine. The principle is fairly simple whereby anodes are placed in the water around the hull and a counter-current is induced ...

Tiny Packages Help Designers Do More with Less

Tiny Packages Help Designers Do More with Less - RF CafeIt'll come as no surprise to any savvy buyer, and certainly not to any design engineer, that each new generation of electronic products packs more performance into a smaller package than the product it replaced. No matter whether it's a remote industrial sensor node or the next smart wearable device, space is becoming an increasingly scarce resource. Aimed at IoT and personal electronics applications, the TLV9061 consumes only 0.64 sq.mm and is the world's smallest op amp. Something's gotta give. In this case, many things. Fitting the increased capability into a smaller volume requires the designer to make improvements in multiple ...

Nuclear Radiation ... Insidious Polluter

Nuclear Radiation ... Insidious Polluter, February 1972 Popular Electronics - RF CafeCesium-137, iodine-131, carbon-14, plutonium-239, strontium-90, uranium-235, and the list goes on. These and other radioisotopes associated with nuclear material are the result of explosions, medical treatments, laboratory experiments, or in some cases naturally occurring deposits. Regardless of the source, most people, including me, cringe at the thought of being exposed to the insidious effects of the cell-altering energy they possess. Ionizing radiation is the dangerous type of radiation due to its ability to dislodge electrons from atoms, and in the process forming cancerous cell mutations or killing the cells altogether. Researchers in the early days of radiation discovery experienced sometimes gruesome maladies as a result of the handling isotopes. Some knowingly subjected themselves to harmful doses ...

Saelig Introduces UHF Narrow Band Multi-Channel Transceiver

Saelig Introduces UHF Narrow Band Multi-Channel Transceiver - RF CafeSaelig has introduced the STD-302Z 434 MHz Narrow Band Multi-Channel Transceiver - a half-duplex UHF radio module that is suitable for industrial remote control and telemetry applications operating in the 434 MHz ISM band. The STD-302Z is designed with SAW filter and narrow-band filtering techniques to provide reliable data communication in industrial situations where interference rejection and practical distance range operation are required. Offering 10 mW of RF power from its PLL-synthesized transmitter with programmable RF channels, the STD-302Z's double superheterodyne receiver sensitivity is specified down to -119 dBm ...

Please Thank QuinStar for Helping to Deliver RF Cafe

QuinStar Technology mm-Wave Products - RF CafeQuinStar Technology designs and manufactures mm-wave products for communication, scientific, and test applications along with providing microelectronic assembly, rapid prototyping, and mass customization. Amplifiers, Oscillators, Switches, Attenuators, Circulators, Isolators, Filters, Waveguide, Antennas, Phase Shifters, Transceivers, Mixers, Detectors. QuinStar specializes in cryogenic amplifiers, circulators, and isolators. Please visit QuinStar today to see how they can help your project ...

Smaller, More Efficient Radio Frequency Transformers

Smaller, More Efficient Radio Frequency Transformers - RF Cafe"The future of electronic devices lies partly within the 'internet of things' - the network of devices, vehicles and appliances embedded within electronics to enable connectivity and data exchange. University of Illinois engineers are helping realize this future by minimizing the size of one notoriously large element of integrated circuits used for wireless communication - the transformer. Three-dimensional rolled-up radio frequency transformers take 10 to 100 times less space, perform better when the power transfer ratio increases and have a simpler fabrication process than their 2-D progenitors, according to a paper detailing their design ..."

Electronics Still Thrives as a Hobby

Lou Frenzel Electronics Hobby - RF CafeLou Frenzel has posted a good article titled, "Electronics Still Thrives as a Hobby" on the Electronic Design website. While attending his local Maker Faire in Austin, Texas, he discovered some statistics on the cross-section of electronic hobbyists as gathered by the Jameco Electronics supply company, who sponsored the event. He expressed surprise at the average age of participants, but it actually comports well with that of many - if not most - hands-on (not including game controller and smartphone button pushing) types of hobbies these days ...

RF Cafe Morse Code Player Working Again

Morse Code page - RF CafeIf you look just beneath the RF Cafe page title, you will see the Morse code dits and dahs that represent this website's name. Click on it and you will be taken to the Morse Code information page, and therein is an audio player that will sound out the code for you. The music file was originally created in MIDI format in order to keep it as small as possible. At the time, all the web browsers supported MIDI files. Times have changed and now most browsers will not support them. I finally got around to converting the file to MP3 format, so now the embedded player will provide the intended code transmission ...

DARPA Project to Examine THz for Wireless Communications

DARPA Project to Examine THz for Wireless Communications - RF Cafe"It may be too early for the wireless industry to make major investments in spectrum above 95 GHz, but it is the right time for researchers to take a closer look at the spectrum and see where it might lead. ComSenTer is a newly formed hub for advanced wireless and sensing research founded by a consortium of industrial partners and the U.S. Defense Advanced Research Projects Agency (DARPA). ComSenTer researchers are developing technologies for the high gigahertz and terahertz spectrum that present opportunities for imaging and sensing capabilities at transmission speeds that are largely unheard ..."

Electronic Countermeasures - The Art of Jamming

Electronic Countermeasures - the Art of Jamming, December 1959 Electronics World - RF CafeDo you own one of those RFID-blocking wallets to keep your credit cards from being read unawares? If so, you are engaging in electronic countermeasures. Anyone interested in the history of electronic countermeasures (ECM) and electronic counter-countermeasures (ECCM) will benefit from this 1959 Electronics World article. ECM has been practiced as early as World War I when wireless communications was first used for military purposes. ECCM, of course, followed immediately on its heels. Electronic countermeasures range from simple jamming of receivers to emitting spoofing signals that fool receivers. In extreme cases ECM can destroy receiver front-ends by overdriving and burning out circuitry. ECM and ECCM ...

Thanks to Rigol for Their Continued Support

Thanks to Rigol for Their Continued Support - RF CafePlease express your appreciation to Rigol Technologies for their support of RF Cafe. Rigol's extensive line of products includes digital and mixed signal o-scopes, spectrum analyzers and RF signal generators, arbitrary waveform generators, power supplies, sensitive measurement products, and data acquisition systems. Applications include applications such as technical education, embedded design, WiFi integration, EMC, and manufacturing. Backed with a 3 year warranty and a 30 day no questions asked return policy ...

 

Normally-Off GaN Nanowire Transistors w/Inverted P-Channel

Normally-Off GaN Nanowire Transistors w/Inverted P-Channel - RF Cafe"Researchers based in Germany claim the first vertical GaN nanowire MOSFETs with an inverted channel, allowing a positive 2.5 V threshold voltage and giving enhancement-mode normally-off behavior. The high threshold was achieved by using p-GaN as the channel material. With 0 V on the gate, the channel blocks current flow. Increasing the gate potential inverts the channel, increasing the electron density and allowing transport. The team from Technische Universität Braunschweig, Universität Kassel and Physikalisch-Technische Bundesanstalt sees advantages from GaN ..."

RF Cafe Engineering Crossword Puzzle w/Weekly Headlines

RF Cafe Engineering Crossword Puzzle w/Weekly Headlines May 20, 2018At least 10 clues with an asterisk (*) in this technology-themed crossword puzzle are pulled from this past week's "Tech Industry Headlines" column on the RF Cafe homepage. 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, astronomy, etc. You will never find among the words names of politicians, mountain ranges, exotic foods or plants, movie stars, or anything of the sort. You might, however, see someone or something in the exclusion list who or that is directly related ...

Bandwidth Efficiency Techniques Learned from Cave-Dwelling Fish

Bandwidth Efficiency Techniques Learned from Cave-Dwelling Fish - RF Cafe"A new light-based device, demonstrated recently by researchers, could mimic a fish's incredible Jamming Avoidance Response (JAR) ability. JAR is a behavior performed by some species of fish when their discharge frequencies are very similar, each fish will shift its discharge frequency to increase the difference between the two fish's discharge frequencies. By doing this, both fish prevent jamming of their sense of electroreception. Moving the frequency of an emitted signal away from other signals that could potentially cause interference can eventually help overcome the spectral bandwidth ..."

Electronic Factor Quiz

Electronic Factor Quiz, November 1966 Popular Electronics - RF CafeRobert Balin created this Electronic Factor Quiz for the November 1966 edition of Popular Electronics magazine. Your challenge is to match the drawing of a particular electronics circuit or implement with the corresponding "factor." Examples are "current amplification factor," "damping factor," "modulation factor," "duty factor," "form factor," "quality factor," etc. There are ten in all. Of course on a quiz like this you cannot get just one answer wrong - or any odd number for that matter. I managed to reverse #5 and #10 (I and B, respectively). For some reason I couldn't remember what "form factor" was, but was sure that #10 was a scale factor of sorts... wrong - a clear case of cranial rectumitis ...

PIM in Mobile Broadband Networks - Measurement and Management

PIM in Mobile Broadband Networks - RF CafeNigel Chapman and Fiona Wilson, of the UK's AceAxis, have authored a short paper titled, "PIM in Mobile Broadband Networks - Measurement and Management." "Passive Intermodulation (PIM) is an unpleasant side effect of the successful deployments of mobile networks, and is a problem that is growing in impact as complexity increases with the deployment of 4G and - in the very near future - 5G networks. PIM has the potential to degrade the efficiency of a cell site, and this network degradation directly impacts the edge of cell performance and/or the throughput of the cell site. What is PIM? PIM is a form of intermodulation distortion that occurs in components that are normally thought of as linear ..."

Mysterious Wireless Band Fits IoT Apps

Mysterious Wireless Band Fits IoT Apps - RF Cafe"Some useful frequencies are elusive or simply unknown to many engineers, so it wouldn't hurt to take some time and dig through the FCC 'bible' of federal regulations. If your application is relatively simple, you have even more choices than you know. Studying the FCC rules and regulations 'bible,' the Code of Federal Regulations (CFR) 47 Parts 15, 18, 95 and others you can discover some interesting possibilities. Of late, I learned of one alternative that fits basic industrial needs and eliminates the complexity of complying with some of the more well-known standards. This may be of interest if you're designing wireless applications ..."

Comics: The Ham... As Seen by Walt Miller

Comics: The Ham... As Seen by Walt Miller, November 1965 Popular Electronics - RF CafeThis handful of Ham-related comics appeared in the November 1965 issue of Popular Electronics. One of them has an operator using "oboe" as the phonetic alphabet version of the letter "O." Having never seen that before, I did a search and learned that the British Forces in World War II uniquely used "oboe" for the letter "O." Maybe the artist, Walt Miller, was either a member of the British Forces or hung around (or served in the military) with someone that was. For that matter, using "able" for the letter "A" is also a British thing. The Silent English phonetic alphabet is interesting. I guarantee you'll appreciate the others as well, or double your money back ...

 

Author: Kirt Blattenberger on Google+ Author:
Kirt Blattenberger