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Click here to read about RF CafeKirt Blattenberger
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"Never trust an atom. They make up everything." - Anon

Today in Science History

Skyworks 75 Ω Switches for Set-top Box and CATV

Skyworks' Intros Two New 75 Ohm Switches for Set-top Box and CATV Applications - RF CafeSkyworks is pleased to introduce two new SPDT 75 Ohm switches that are ideal for set-top box and DVR applications. The SKY13547-490LF and SKY13548-385LF feature ultra-high linearity and meet the rigorous requirements of DOCSIS 3.0/3.1 applications. They also boast very low insertion loss and high power handling capability. Skyworks' new switches are fully integrated and internally matched, reducing bill of material costs for customers. They are available in compact 1 x 1 x 0.45 and 2 x 2 x 0.55 mm packages, saving precious application board space and cost for OEMs. These devices can also be used for terrestrial and cable set-top box, cable modem and home gateway ...

Honeywell Seeking a Sr. Antenna Test Technician

Honeywell Seeking a Sr. Antenna Test Technician - RF CafeThe Sr. Antenna Test Technician will perform all antenna, material and environmental testing of antennas to meet tasking requirements utilizing a planar near field range, anechoic chamber and environmental test chamber. The Senior Antenna Test Technician will also perform the following: Maintain electronic records library of test result data on completed customer testing tasks. Support engineering tasks related to the repair, fabrication, assembly, production, installation and testing of antennas and electronic hardware and systems. Utilize and interpret schematics, wiring diagrams, test manuals, test procedures and performance specifications to ...

Tech News: May 6

BT Reports 9% Rise in Profit, Will Invest £6B in Fibre, 4G

FCC Proposes $51 Million in Penalties for Lifeline Program (aka Obamaphones)

Physicists Abuzz About Possible New Particle as CERN Revs up

No Need for Panic Regarding Synthetic Aperture Radars on 70 cm

Chip Sales Edge up Slightly

Instagram Hacked by 10-Year-Old Boy

25 Highest Paying Companies in America for 2016

25 Highest Paying Companies in America for 2016 - RF Cafe"According to Glassdoor's latest report revealing the 25 Highest Paying Companies in America for 2016, several companies are offering employees six figure paychecks. This report is based on each company's median total compensation, compiled by looking at salary reports ..." Unfortunately, but not surprisingly, companies likely to employ electrical and RF engineers and technicians are not well-represented.

   #1: A.T. Kearney - $167,534
   #3: Juniper Networks - $157,000
   #5: Google - $153,750
#10 : Cadence EDA - $150,010
#12: Facebook - $150,000
#19: LinkedIn - $145,000
#22: Microsoft - $141,000
#25: Broadcom - $140,000

Z-Communications Intros Fixed Frequency 5,900 MHz PLL

Z-Communications Intros Fixed Frequency 5,900 MHz PLL - RF CafeZ-Comm announces a new fixed frequency phase locked loop model RFS5900A-LF in the C-band. The RFS5900A-LF is a fully integrated synthesizer operating at 5900 MHz which is phase locked to a 10 MHz reference with a stability of ±2.5 ppm. This low cost PLL features a typical phase noise of -80 dBc/Hz, -85 dBc/Hz, and -103 dBc/Hz at the 1 kHz, 10 kHz and 100 kHz offsets, respectively. The RFS5900A-LF is designed to deliver an output power of 3۬±2 dBm while operating off a VCO voltage supply of 5Vdc and drawing ...

High Tech News: May 5

Printing THz Lenses

Indian Fabs, the Free Market and Central Planning

Personal Cooling Units on the Horizon

Court: Chinese Company Can Call Product IPHONE

MaxLinear Buys Microsemi's Broadband Wireless Unit

FCC Action Anticipated on ARRL's "Symbol Rate" Petition for Rule Making

Honeywell Seeking a Sr. RF Engineer

Honeywell Seeking a Sr. RF Engineer - RF CafeThe Sr. RF Engineer will perform as a competent specialist, consultant, and/or advisor on assignments requiring advanced application of technical or engineering principles relative to Radio Frequency Engineering. Assignments are generally complex in nature with considerable discretion given to work details and approaches utilized. Specific responsibilities will include: Provides support in the design, development, and testing of RF and/or microwave systems architecture, components, circuits or products. Efforts may include analog and digital circuits or products, frequency synthesizers, amplifiers, transmitters and receivers, down converters, frequency multipliers, digital logic ...

James Clerk Maxwell on Education

James Clerk Maxwell (wikipedia image) - RF Cafe"The aim of an experiment of illustration is to throw light upon some scientific idea so that the student may be able to grasp it. ...The educational value of such experiments is often inversely proportional to the complexity of the apparatus." - James Clerk Maxwell, The Scientific Papers of James Clerk Maxwell - Vol. 2, p243, by W.D. Niven.

Ground Resistance and Its Measurement

Ground Resistance and Its Measurement, May 1951 QST - RF CafeAn old electrician's saying goes "Ground is ground the world around," implying that every point on Earth's surface is at the same potential - specifically 0 volts. We know, of course, that it is not so. Maybe on average such a claim could be made, but just as 'sea level' is not the same at all points on the ocean's surface (hence we speak of 'mean sea level'), neither is the voltage potential the same everywhere. Further, just as the salinity of all points on the ocean surface do not have the same salinity (and thereby conductivity), the conductivity of various places on dry land vary - often significantly. Electric power systems are very concerned with soil electrical conductivity in the vicinity of power generation installations ...

1-Step Graphene Patterning Method Developed

1-Step Graphene Patterning Method Developed - RF Cafe"Researchers from the University of Illinois at Urbana-Champaign have developed a one-step, facile method to pattern graphene by using stencil mask and oxygen plasma reactive-ion etching, and subsequent polymer-free direct transfer to flexible substrates. Graphene, a two-dimensional carbon allotrope, has received immense scientific and technological interest. Combining exceptional mechanical properties, superior carrier mobility, high thermal conductivity, hydrophobicity, and potentially low manufacturing cost, graphene provides a superior base material for next generation bioelectrical, electromechanical, optoelectronic, and thermal ..."

Spying Billboards Track Your Phone as You Walk By

Spying Billboards Track Your Phone as You Walk By - RF Cafe"Anybody who walks or drives past new tracking billboards with a mobile phone in their pocket can be spied on without their knowledge or consent: a potential invasion of privacy that US Senator Charles E. Schumer wants the US Federal Trace Commission (FTC) to investigate. Schumer, a Democrat from New York, delivered a briefing in Times Square on Sunday, electronic billboards blinking and scrolling behind him. These new 'spying' billboards raise serious questions about privacy, Schumer said ..."

Researchers Develop Dissolvable Memristor

Researchers Develop Dissolvable Memristor - RF Cafe"Researchers at two Chinese universities, the Cavendish Laboratory at Cambridge University and the University of Bolton in the UK, have produced a so-called memristor device made from egg proteins, magnesium and tungsten. A memristor – sometimes simply called a non-volatile resistive memory – is a two-contact variable device that not only controls the flow of electrical current, like a resistor, and does so as a function of its previous history, a memory effect and hence the memristor name. Transient electronics and memristors have previously ..."

Mac's Radio Service Shop: A Breathing Spell

Mac's Radio Service Shop: A Breathing Spell, January 1955 Radio & Television News - RF CafeWe are accustomed these days with stores having "no questions asked" return policies for just about anything. I once watched a guy successfully return a 4" PVC plumbing fitting that had clearly been smeared with glue in the coupling areas. Another time a guy returned a painting drop cloth that was full of paint, declaring that it wasn't what he wanted. The return counter bins of Walmart and other stores are always chock full of stuff. Such was not always the case, though. This episode of Mac's Radio Service Shop, mentions, among other things, how busy he and sidekick Barney had been right after Christmas doing troubleshooting and repair on various electronic equipment that had been received as gifts. Imagine receiving ...

Crowd-Funding an SDR Platform: Lime Microsystems

Crowd-Funding an SDR Platform: Lime Microsystems"Lime Microsystems has launched a crowd-funding campaign to bring its LimeSDR software defined radio platform into full-scale production. The campaign, hosted on the Crowd Supply platform, aims to raise $500,000 to fund the final stages of development and mass production of the LimeSDR platform. The LimeSDR platform is a low cost application-enabled software defined radio (SDR) platform that can be programmed to support virtually any type of wireless standard – including Wi-Fi, ZigBee and Bluetooth through to cellular standards such as UMTS, LTE and GSM and to the emerging IoT ..."

2016 Engineering Education and Research Resources DVD

2016 Engineering Education and Research Resources DVD - RF CafeKeysight is dedicated to meaningful collaboration with educators and researchers at every level around the world. This year's DVD has been updated with almost 200 new items in 7 key focus areas relating to education and research. You will find timely application notes, white papers, case studies, informative videos, and webcasts, as well as additional resources relative to Keysight solutions in these focus areas: • Software Design & Simulation Solutions • Communications Technology • Test & Measurement Science • Nanotechnology & Material Measurement Classroom ...

How to Find an Engineering Apprenticeship

How to Find an Engineering Apprenticeship, Interesting Engineering - RF Cafe"Doing an apprenticeship is a great way of having real-life work experience and getting a feel of what it's like to actually work in the industry. It is also one of the ways to avoid going to university but still getting a career you desire. If this is something you'd be interested in, continue reading! The following are top 10 tips that will help you find an apprenticeship: 1. Research is crucial! Read about all the different areas of engineering you can potentially work in, which companies take more interns in, what skills are necessary, etc. 2. Choose an area you are most interested ..."

Introducing the Disposable Laser

Introducing the Disposable Laser - RF Cafe"Since lasers were invented more than 50 years ago, they have transformed a diverse swath of technology - from CD players to surgical instruments. Now researchers from France and Hungary have invented a way to print lasers that's so cheap, easy and efficient they believe the core of the laser could be disposed of after each use. The team reports its findings in the Journal of Applied Physics, from AIP Publishing. 'The low-cost and easiness of laser chip fabrication are the most significant aspects of our results,' said Sébastien Sanaur, an associate professor ..."

Military Services Look to Promote 'Intrepreneurs'

Military Services Look to Promote 'Intrepreneurs' - RF Cafe"Among the expanding efforts to transform the way the U.S. military develops and deploys new technologies based on models perfected by Silicon Valley entrepreneurs is a new project designed to support what organizers call a cadre of 'military intrapreneurs.' The Athena Project convened last week in Silicon Valley to stage what amounted to a project-pitching session. The idea is to develop new acquisition skills akin to technology startups that would eventually allow the military services ..."

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