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Qualcomm: We're Working at a Feverish Pace to Develop 5G Tech

GaN Substrate Market Estimated at over $4B by 2020

U.S. Regulators Pave Way for Speedy Next-Gen 5G Networks

NUS Scientists Develops Plastic Flexible Magnetic Memory Device

Apple vs. Samsung Is So Over

Weird Quantum Effects Can Travel Hundreds of Miles

Tesla Again Spurns Lidar, Betting Instead on Radar

LTE-U Program Proceeding Faster Than Typical Wi-Fi Alliance Plan

Korea Set to Fine Qualcomm $900M

Artificial Intelligence Swarms Silicon Valley on Wings and Wheels

Thanks to Federal Custom Cable for Supporting RF Cafe ! ! !

Federal Custom Cable (78x26)Please welcome Federal Custom Cable as the newest advertiser on RF Cafe. Federal Custom Cable is your direct Federal Custom Cable - Cable Assembliessource for RF & Microwave and Contract Manufacturing (CM), cable prepping, kitting, labeling, rack & panel, modular assemblies, delay lines, Federal Custom Cable - Attenuatorsinductors and toroids, semi rigid, stripping and bending, custom molding, Ø-matched, power and multi-conductor and shielded cables. Please visit them today to see if they can help you with your project ...

3 More Radio Service Data Sheets for Vintage Sets

3 More Radio Service Data Sheets for Vintage Sets - RF Cafe3 more Radio Service Data Sheets for vintage vacuum tube radios have been added to the growing collection (135 so far). Radio-Craft and Radio-News, both publications of Hugo Gernsback, published these monthly for the benefit of both professional service shops and private tinkerers. • Stromberg-Carlson Nos. 62 and 63, 8-Tube High-Fidelity Chassis • RCA Model 103, 4-Tube A.C. Compact Dual-Wave • General Electric Models A82 and A87, 8-Metal-Tube All-Wave A.C. Superheterodyne

Empower RF Systems Remote Live Demo at EMC 2016

Empower RF Systems Remote Live Demo at EMC 2016 - RF CafeEmpower RF Systems is conducting remote live demos of our broadband, high power amplifier at the IEEE EMC Symposium at the Shaw Centre in Ottawa July 26 – 28th , 2016, Booth 322. The amplifier will be housed in Los Angeles while viewed in the Ottawa exhibit venue with live streaming video while controlling the amplifier from the exhibit floor through a standard web browser. What you will see is a demonstration of remote operation of the Empower 2170 1KW RF amplifier in a test setup ...

Electronic Design Magazine's 2016 Leaders in Electronics Issue

Electronic Design Magazine's 2016 Leaders in Electronics Issue - RF CafeA day or so ago I posted about Electronic Design magazine's latest Salary Survey (which is also part of this report). Now, here is their annual Leaders in Electronics issue. It appears to be largely an infomercial for their advertisers, not a personal interview with company 'leaders' offering industry insights like the title might suggest. Nevertheless, there is a lot of good information as well, including the report on the Internet of Things (IoT). You need to sign in for this one, too ...

Saelig Introduces New Mil-Spec High Reliability Crystal Oscillators

Saelig Introduces New Mil-Spec High Reliability Crystal Oscillators - RF CafeSaelig Company has announced two new ranges of military specification crystal oscillators, designed for use in applications that demand high reliability. Available in industry standard dual-in-line packages, the new EQXO-1000BMK and EQXO-3000BMK clock oscillators feature a custom-designed quartz crystal and a CMOS/TTL compatible hybrid circuit mounted on a ceramic substrate. Manufactured using the latest advances in production technology, these oscillators ...

Dense Yet Transparent Materials Control Light

Dense Yet Transparent Materials Control Light - RF Cafe"Researchers recently made the surprising discovery that a special class of materials called 'hyperuniform materials' can be both dense and transparent. This work demonstrates a new way to control light and could lead to novel materials for many light-based applications including solar photovoltaics. These so-called 'hyperuniform materials' can be made of plastic or glass that contains light-scattering particles spaced in a disordered, but not completely ..."

BAE Claims Aviation 1st with Laser Airspeed Sensor

BAE Claims Aviation 1st with Laser Airspeed Sensor - RF Cafe"The Laser Air Speed Sensing Instrument (LASSI) which is being exhibited at this year’s Farnborough International Airshow sets itself apart from conventional methods as it accurately measures velocity even at low speeds. Air speed is normally determined using pitot tubes – which protrude from aircraft and sense variations in air pressure with speed. Although usually heated, these tubes are vulnerable to blockage in icy conditions. They could also be damaged by collisions with birds and when the aircraft is on the ground. Operating on the same principle ..."

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'Radiation Friction' Could Make Huge Magnetic Fields with Lasers

Radiation Friction Could Make Huge Magnetic Fields with Lasers - RF Cafe"Huge magnetic fields can be created by firing intense, circularly polarized laser pulses at a target, according to calculations by physicists in Italy, Germany and Russia. Their research suggests that the mysterious phenomenon of 'radiation friction' plays a crucial role in generating the field. Measuring such magnetic fields could offer physicists a new way of studying this poorly understood effect, which is believed to play a crucial role in the physics underlying astrophysical objects such ..."

Thin Energy Device Lasts Longer Than Batteries

Thin Energy Device Lasts Longer Than Batteries - RF Cafe"Better lifecycle characteristics than conventional secondary batteries offers a novel energy source from Murata called UMAL. With its extremely slim form factor and superior charge/discharge properties, the UMAL is designed for deployment in maintenance-free applications such as wireless sensor nodes and wearable designs, the vendor says. The UMAL has a nominal voltage of 2.3 VDC, can supply 12 mAh ..."

Using Selenium Rectifiers

Using Selenium Rectifiers, October 1947 QST - RF CafeThe advent of selenium rectifiers in the 1940s was a very welcome new option to circuit designers, consumers, and servicemen. Before that, vacuum tubes did the job (with some use of copper oxide rectifiers). Selenium rectifiers have the advantage of ruggedness and reliability over tubes (~85% vs. 60%, respectively). Not requiring a heater voltage eliminates needing to create heat in excess of that dissipated due to the innate inefficiency. Voltage and power handling is adjusted by stacking appropriate layers and adjusting the physical size, respectively. A failed selenium rectifier reportedly often emitted ...

U.S. Government to Establish 5G Research Cities

U.S. Government to Establish 5G Research Cities - RF Cafe"The U.S. government last week unveiled a multi-million-dollar project to further the development of 5G technologies, including the establishment of four city-sized testbeds for R&D. National Science Foundation (NSF) has pledged to invest US$400 million over seven years to support the government's Advanced Wireless Research Initiative (AWRI) programme, including a spend of $50 million on 5G research platforms. Four of these Platforms for Advanced Wireless Research (PAWR) will be set up under the project, each ..."

U.S. Air Force Looks to Upgrade Its EW Jammers

Air Force Looks to Upgrade Its EW Jammers - RF Cafe"The U.S. Air Force is looking to expand and upgrade its fleet of air-launched electronic warfare jammers, already in wide use, with a $34.8M contract awarded to Raytheon. The contract calls for Raytheon to upgrade current versions of the Miniature Air Launched Decoy-Jammer, known as MALD-J, improving its flight and EW jamming capabilities. The work is expected to be completed in 24 months. The MALD-J is a fairly small, low-cost weapon that can be launched from fighters, bombers and other ..."

EDI CON USA Announces 2nd Expansion, Registration Open

EDI CON USA 2016 2nd Expansion of Display Floor - RF Cafe
EDI CON USA 2016, a conference that brings together engineers working on high-frequency analog and high-speed digital designs, taking place September 20-22 in Boston, Mass. at the Hynes Convention Center, announces it sold-out its show floor, with a total of 138 exhibiting companies from the RF, microwave, and high-speed digital industries. As a result, the show management has issued a second floor expansion. There is also limited availability for a demo pod in the Signal Integrity Zone. The EDI CON USA 2016 show floor and exhibitor list can be found online ...

Sonnet of a Ham

Sonnet of a Ham, October 1947 QST - RF CafeI have never been a fan of "free verse" poetry, be it in the form of a sonnet or otherwise. In my humble opinion, poems that do not both rhyme and have some degree of meter represent laziness on the part of the 'poet.' Without requiring poetry to rhyme, all that is required to declare anything a poem is to break the writing into poem-like lines, et voilà - you have a poem. It is like slinging a brush-load of paint onto a canvas and calling it art. I proclaim the above to be a poem ...

Apollo 11 Guidance Computer Source Code on GitHub

Apollo 11 Guidance Computer Source Code on GitHub - RF CafeWith the 47th anniversary of the Apollo 11 moon landing coming up on July 20, a number of sources have written about NASA having released the Apollo Guidance Computer (AGC) source code into the public domain. Chris Wiltz, at Design News, included this photo of Margaret Hamilton of MIT's Draper Labs standing with her team's code printout. Women engineers take note - that was in 1969!

NASA Apollo 11: Owners' Workshop Manual - RF CafeI highly recommend the NASA Apollo 11: Owners' Workshop Manual, published by Haynes. It has an incredible amount of 'insider' info about the development of both hardware and software.

He Makes What We Hams Use - Art Collins

He Makes What We Hams Use - Art Collins, June 1953 QST - RF CafeArthur (Art) Collins, who began his radio career as a Ham, founded Collins Radio in 1933, in Cedar Rapids, Iowa. Just as civil aviation enthusiasts long ago began associating Wichita, Kansas, with Cessna, Lear, Beechcraft, et al, and its airplanes, radio people associate Cedar Rapids with Collins Radio. In fact - and this is a fact - electronics companies like RF Micro Devices (now Qorvo) and Skyworks Solutions set up RFIC design centers there back in the early 1990s in order to exploit the availability of highly talented engineers who worked for Collins ...

Navy Awards Deal to Support Airborne Radios

Navy Awards Deal to Support Airborne Radios - RF Cafe"The Navy has awarded Rockwell Collins a $31M contract for weapon replaceable assembly repair support of the Aviation Navy/Airborne Radio Communication airborne radios, which provide secure voice, data and imagery. The contract applies to the AN/ARC 210 version Electronics Protection Radio System and also calls for support for the Communications Security System requirements for the Navy and other Defense Department services ..."

America's Network of Secret Bomb Detectors Could Be Growing

America's Network of Secret Bomb Detectors Could Be Growing - RF CAfe"Stop on the sidewalk on a downtown street in any large American city, and take a look around. Check out the utility poles nearby, the metal boxes planted at the street corners, the cameras dangling from awnings and eaves. Urban infrastructure is made up of thousands upon thousands of moving parts, and many of the gizmos that make a city run are designed to do their jobs without attracting too much attention. Now, a mysterious new device may ..."

Notable Tech Quote: Nolan Doesken

Notable Tech Quote: Nolan Doesken - RF Cafe"From a customer perspective, there is a demand for this service whether its accurate or not." - Nolan Doesken, Colorado State University professor, in response to AccuWeather's new 90-day forecasts (HuffPo article). Have you noticed that a few months ago the AccuWeather online forecast began extending out 90 days? I remember being dubious when they went from the original 2-week forecast to a 30-day forecast. Most of the time, for most locations issuing a forecast more than 4 or 5 days in advance is an exercise in vanity. A scientific organization populated with PhD level climatologists, meteorologists ...

World's Newest Super Radio Telescope Sees 1st Light

World's Newest Super Radio Telescope Sees 1st Light - RF Cafe"Even operating at a quarter of its eventual capacity, South Africa's MeerKAT radio telescope showed off its phenomenal power Saturday, revealing 1,300 galaxies in a tiny corner of the universe where only 70 were known before. The image released Saturday was the first from MeerKAT, where 16 dishes were formally commissioned the same day. MeerKAT's full contingent of 64 receptors will be integrated next year into a multi-nation Square Kilometre Array (SKA) which ..."

The Great Pickett Slide Rule Apollo Conundrum

The Great Pickett Slide Rule Apollo Conundrum - RF CafeLong after shirt pocket sized electronic calculators and glass cockpits became the norm for both professional and recreational aviators, Colonel J. Michael Gibson, a career pilot and navigator with the Canadian Civil Aeronautics Search and Rescue (now retired) carried a Pickett N600-ES slide rule in his flight jacket. Its diminutive size (only 5" long), sharply marked scales, and sturdy construction made it a favorite for on-the-go users. A special purpose Pickett N700-T USAF Aerial Photo slide rule lived in his flight suit sleeve pocket. Colonel Gibson is passing along his appreciation for the art of slide rule usage to his granddaughter. She routinely uses her Pickett 1010 model ...

Cryogenic Superconducting Technologies for SIGINT

Cryogenic Superconducting Technologies for SIGINT - RF Cafe"Two U.S. research companies are helping the U.S. Navy develop breakthrough cryogenic super-cooled superconducting RF and microwave technologies for future tactical signals intelligence (SIGINT) systems. Officials of the Space and Naval Warfare (SPAWAR) Systems Center Pacific in San Diego announced contracts this week to Out of the Fog Research LLC in Mountain View, Calif., and to Hypres Inc. in Elmsford, N.Y., for the Emerging Cryogenic devices ..."

Terahertz Amplifiers Could Open New Frontiers in RF Communications

Terahertz Amplifiers Could Open New Frontiers in RF Communications - RF Cafe"Pentagon researchers are sponsoring a competition of sorts that could open an area off the electronic spectrum to high-capacity radio communications. The Defense Advanced Research Projects Agency is already making some progress with its Terahertz Electronics Program, which currently has two contenders, both made by Northrop Grumman: the Solid State Power Amplifier and the Traveling Wave Tube Amplifier. This isn't a case of just speed for speed's sake. The military has been looking to make ..."

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