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Innovative Power Products Couplers
Homepage Archive - August 2018 (page 2)

These archive pages are provided in order to make it easier for you to find items that you remember seeing on the RF Cafe homepage. Of course probably the easiest way to find anything on the website is to use the "Search RF Cafe" box at the top of every page.

Homepage Archive Pages

2018:  Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec
2017:  Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec
2016:  Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec

See Page 1 | 2 | 3 of the July 2018 homepage archives.


Friday 17

Thursday 16

Wednesday 15

Tuesday 14

Alliance Test Equipment: Used & Refurbished, Purchase & Rental

Alliance Test EquipmentAllied Test Equipment Products - RF CafeAlliance Test sells used / refurbished test equipment, we offer short- and long-term rentals. They also offer repair, maintenance and calibration. Prices discounted up to 80% off list price. Agilent/HP, Tektronix, Anritsu, Fluke, R&S and other major brands. A global organization with ability to source hard to find equipment through our network of suppliers. Please visit Allied Test Equipment today to see how they can help your project ...

Transistor Transition (Editorial)

Transistor Transition (Editorial), February 1953 Radio-Electronics - RF CafeHugo Gernsback was well-known not just for his technical prowess, but for an uncanny ability to predict future developments in electronics, transportation, and production methods. Barely three years had passed since Messrs. Bardeen, Shockley, and Brattain, announced their invention of the transistor when this editorial titled, "Transistor Transition" appeared in Radio-Electronics magazine. Gernsback mentions the concept of "appliqued circuits" (i.e., printed circuits) and "roll-up display" transistor picture tubes (i.e., flexible displays), and "pocket radios" that can be held up to the ear. Production prices for transistors at the time were about $8 apiece, which is the inflation-adjusted equivalent of $76 in 2018. At that price point, who could blame the pro-tube, never-transistor crowd from denying the possibility of transistors ever replacing tubes ...

Please Welcome Rohde & Schwarz as a New Banner Advertiser!

Rohde & Schwarz New Sponsor - RF CafePlease welcome Rohde & Schwarz as RF Cafe's newest Banner Advertiser in a 160x600−px slot! R&S has been a long-time supporter. Dr. Lothar Rohde and Dr. Hermann Schwarz founded the company Munich, Germany, in 1933. Per a Wikipedia entry, R&S received a electronics equipment depot maintenance contract in 1945 from the U.S. Army, which might be their first presence here in the U.S., providing serious competition to Hewlett Packard. I found this Rohde & Schwarz ad in a 1965 issue of Electronics magazine. Rohde & Schwarz is now a premier player in the communications test equipment realm. Lab benches and production test stations have taken on a noticeably blue hue thanks to all the R&S equipment in use ...

Japanese Technology - The New Push for Technical Leadership

Japanese Technology - The New Push for Technical Leadership, December 13, 1965 Electronics Magazine - RF CafeIf the December 13, 1965, edition of Electronics magazine had a theme, it was undoubtedly reporting on the current state of Japanese technology. The cover photo is a shot of a microwave antennas dominating Tokyo's skyline. Japanese technology companies worked hard to overcome the largely undeserved negative connotation that a "Made in Japan" label carried in the day. Do you remember the scene in the movie "Back to the Future Part III" where Doc, having traveled back in time from the 1950s, is trying to fix his DeLorean time travel car and discovers a burnt out circuit and claims, "No wonder this circuit failed, it says made in Japan?" Marty, who travelled from the 1980s, replied, "What do you mean doc, all the best stuff is made in Japan." There is no denying the Japanese people succeeded at their goal ...

Please Welcome Greg Boone to the Vaunted List of USAF Radar Techs

Please Welcome Greg Boone to the Vaunted List of USAF Radar TechsGreg Boone was in technical school at Keesler AFB, MS, during my time there in 1989. We were both AFSC 303x1 radar maintenance techs, although he began a couple months before I arrived. His service info is now in the USAF Radar Techs list. Greg was part of a group of guys, including Jim Flinn and me, who used to take stashes of firecrackers and bottle rockets to a road construction site in the Biloxi, Mississippi, area and play "war games" against opposing sides. As far as I know, none of us ever face any real fire while in the service. At least back in the era, a commonly repeated saying was that the Air Force is the only branch of service where the officers are sent into the heat of battle while the enlisted stay safely behind the lines ...

NIST FY 2019 Budget Would Eliminate WWV and WWVH

NIST FY 2019 Budget Would Eliminate WWV and WWVH - RF CafeCall to action - contact NIST to continue WWV and WWVH broadcasts. "The National Institute of Standards and Technology (NIST) FY 2019 budget request includes shutting down NIST radio stations in Colorado and Hawaii - in other words, WWV and WWVH. Radio amateurs, HF listeners, and others around the world routinely make use of the time and frequency standard signals, which also include propagation information. NIST said eliminating funding currently 'supporting fundamental measurement dissemination' would include putting WWV and WWVH off the air for a saving of $6.3M. The NIST FY 2019 budget request for efforts related to Fundamental Measurement, Quantum Science and Measurement Dissemination is $127M ..."

Monday 13

Laser Communications Demonstrated from CubeSats for 1st Time

Laser Communications Demonstrated from Cubesats for 1st Time - RF Cafe"The Aerospace Corporation announced a milestone with the Optical Communications and Sensor Demonstration (OCSD) mission. The laser communication system, carried by the two low-Earth-orbiting OCSD CubeSats also known as AeroCube-7B and Aerocube-7C, successfully transmitted data at a rate of 100 megabits per second which is 50 times greater than typical communication systems for this size spacecraft. 'This is a significant achievement, given that high speed laser communications is mostly done from larger satellite systems,' said Steve Isakowitz, Aerospace president and CEO ..."

Ransom Stephens and Ovi Jacob Headline EDI CON USA 2018

Ransom Stephens and Ovi Jacob Headline EDI CON USA 2018 Plenary Keynotes - RF CafeEDI CON USA, the industry event that brings together RF/microwave and high-speed digital design engineers and system integrators, announces its plenary keynote speakers - Ovi Jacob and Ransom Stephens - for the 2018 conference, which will be held in Santa Clara, CA October 17 and 18. All pass holders will be eligible to see these talks, each happening at 11:30AM. On Wednesday, October 17, 2018, Ovi Jacob, Director of Business Development at Vayyar Imaging, will provide a fascinating glimpse at technology that is changing the world, and our ability to survive in it. In his talk, "Looking Deeper: Using Radar to Save Lives and Improve the World" Jacob will address how radar is being used for life-saving cancer detection, as well as in everyday applications ...

Look Out! It's Hot!

Look Out! It's Hot!, June 1966 Popular Electronics - RF CafeElectrocution has always been - and always should be - a hot topic (pun intended) in the realm of electrical and electronics servicing and usage. Trade and hobby magazines have dedicated many column inches to it over the years. A lot of people are deathly (there I go with the puns again) afraid of being anywhere in the proximity of an exposed electrical connection. My father, a newspaper classified advertising manager, was one of those people. He would cringe when I took the cover off the fuse panel in the house to work on it. He could barely bring himself to replace a blown fuse, which was not a completely unjustified fear given the low standards of older electrical wiring. Those screw-in fuses had a threaded metal perimeter around the bottom portion with a button connection at the bottom center. Theoretically, that threaded metal perimeter is at ground potential ...

Promote Your Company on RF Cafe for as Little as $35/Month

Sponsor RF Cafe for as Little as $35 per Month - RF CafeRF Cafe typically receives 10,000-15,000 website visits each weekday and about half that on weekends. RF Cafe is a favorite of engineers, technicians, hobbyists, and students all over the world. With more than 7,000 pages in the Google search index, RF Cafe returns in favorable positions on many types of key searches, both for text and images. New content is added on a daily basis. Items added on the homepage are broadcast on LinkedIn, Facebook, and Twitter. Banner advertising begins at $150/month ...

VidaRF: Passive RF & Microwave Components

vidaRF passive RF & microwave components - RF CafeAt VidaRF, the phrase 'Providing Simple Solutions for Complex Connections' is more than just a slogan – it's a mindset, a mission, and a driving force behind everything we do. Their pledge is to design and distribute high performance, cost effective RF Microwave products to fit each customer's unique applications. Please visit VidaRF today to see how their lines of attenuators & terminations, directional couplers, power dividers, coaxial connectors, and circulator & isolators can be of use to your project. "When the standard just will not do, VidaRF has the solution for you!" ...

Marriage of Topology and Magnetism in a Weyl System

Marriage of Topology and Magnetism in a Weyl System - RF Cafe"Topology is a global aspect of materials, leading to fundamental new properties for compounds with large relativistic effects. The incorporation of heavy elements gives rise to non-trivial topological phases of matter, such as topological insulators, Dirac and Weyl semimetals. The semimetals are characterized by band-touching points with linear dispersion, similar to massless relativistic particles in high energy physics. The interplay of symmetry, relativistic effects and, in magnetic materials, the magnetic structure, allows for the realization of a wide variety of topological phases through Berry curvature design. The Berry curvature describes the entanglement ..."
















New Classic, Highly Informative Watkins-Johnson Tech-Notes Added

New Classic, Highly Informative Watkins-Johnson Tech-Notes Added - RF CafeBelieve it or not, there was a time when the Internet did not exist and getting quality information could be difficult. Offices, cubicles, laboratories, company technical libraries, even hallways, were piled high with reference books, magazines, component books, applications notes, datasheets, white papers, and every other form of information that might be useful. Watkins-Johnson Tech-Notes were particularly notable for their practical design and application content. Thanks to Mr. Larry Jugler for providing these three new Watkins-Johnson Tech-Notes for adding to my collection of PDF files:
- Competitive Receiver Technologies
- RF Signal Processing Before the Receiver
- Software Design of Microprocessor-Controlled Receivers

All-Transistor TV Receiver Shown by RCA

All-Transistor TV Receiver Shown by RCA, February 1953 Radio-Electronics - RF Cafe 


















Are Telcos Ready for Smart Home $11.2B Opportunity?

Are Telcos Ready for Smart Home $11.2B Opportunity? - RF Cafe"ABI Research estimates the smart home segment could potentially be worth in the region of $11.2B by 2022, but the diversification question still remains for the telcos. The smart home is a concept which has been on the horizon for some time, we've been debating the merits of talking fridges for years, but until recently it has perhaps been little more than a gimmick. The advantages of the expensive upgrades were limited, and in all honesty, there seem like little point in connecting your toilet to the internet. That said, during the last 12-18 months applications and services have started to appear to make the prospect genuinely interesting..."

Low-Friction Interface Has Potential for Wear Reduction

Low-Friction Interface Has Potential for Wear Reduction - RF Cafe"Discovery may herald high-performance computer hard disks where lack of friction enables greater data storage It has long been known that layered solid materials, particularly graphite, can act as lubricants. A joint project between Tel Aviv and Tsinghua Universities has now found that the interface between graphite and a two-dimensional material, hexagonal boron nitride, exhibits a property known as superlubricity where friction between two surfaces virtually disappears altogether. 'Superlubricity is a highly intriguing physical phenomenon, a state of practically zero or ultra-low friction between two contacting surfaces,' said Prof Oded Hod ..."

Reusable Lab-on-a-Chip Uses Acoustic Waves to Manipulate Fluid Droplets

Reusable Lab-on-a-Chip Uses Acoustic Waves to Manipulate Fluid Droplets - RF Cafe"Researchers in the U.S. have developed a way to manipulate and mix droplets of fluids by having them surf on acoustic waves in oil. The group, from Duke University in North Carolina, claims that the technology could form the basis of a reusable and programmable biomedical chip for applications ranging from diagnostics to laboratory-based research. So-called lab-on-a-chip systems have played an increasingly important role in the biomedical and pharmaceutical sectors, but because these devices rely on solid surfaces their application has been hindered by problems related to surface absorption ..."

3D-Printable Alloy for Flexible Electronics and Soft Robots

3D-Printable Alloy for Flexible Electronics and Soft Robots - RF Cafe"The physical structure of liquid metal is altered by incorporating a conductive nano- or micro-nickel filler. Liquid metal printing is integral to the flexible electronics field. Additive manufacturing enables fast fabrication of intricate designs and circuitry. The field features a range of products including electrically conductive textiles; bendable displays; sensors for torque, pressure, and other types of strain; wearable sensor suits, such as those used in the development of video games; antennae; and biomedical sensors. Soft robots, flexible computer screens, and other stretchable electronic devices also can be created ..."

Hacked Satellite Systems Could Launch Microwave-like Attacks

Hacked Satellite Systems Could Launch Microwave-like Attacks - RF Cafe"At Black Hat conference in Las Vegas, researcher says theoretical threat to ships, planes and military is 'no longer theoretical.' The satellite communications that ships, planes and the military use to connect to the internet are vulnerable to hackers that, in the worst-case scenario, could carry out 'cyber-physical attacks,' turning satellite antennas into weapons that operate, essentially, like microwave ovens. According to research presented at the Black Hat information security conference in Las Vegas, a number of popular satellite communication systems are vulnerable to the attacks ..."



















Promote Your Company on RF Cafe for as Little as $35/Month

Sponsor RF Cafe for as Little as $35 per Month - RF CafeRF Cafe typically receives 810,000-15,000 website visits each weekday and about half that on weekends. RF Cafe is a favorite of engineers, technicians, hobbyists, and students all over the world. With more than 7,000 pages in the Google search index, RF Cafe returns in favorable positions on many types of key searches, both for text and images. New content is added on a daily basis, which keeps the major search engines interested enough to spider it multiple times each day. Items added on the homepage often can be found in a Google search within a few hours of being posted. I also re-broadcast homepage items on LinkedIn, Facebook, and Twitter. If you need your company news to be seen, RF Cafe is the place to be. Banner advertising begins at $150/month ...

RF Cascade Workbook 2018 - Your Support Helps Keep Me off Welfare ;-)

RF Cascade Workbook 2018 Is Available Now! - RF Cafe

RF Cascade Workbook 2018 is the next phase in the evolution of RF Cafe's long-running series, RF Cascade Workbook. It is a full-featured RF system cascade parameter and frequency planner that includes filters and mixers for a mere $45. Built in MS Excel, using RF Cascade Workbook 2018 is a cinch and the format is entirely customizable. It is significantly easier and faster than using a multi-thousand dollar simulator when a high level system analysis is all that is needed. An intro video takes you through the main features ...

RF Stencils for Visio v3.1 Available! - Your Support Keeps Me off Welfare ;-)

RF Microwave Wireless Analog Block Diagrams Stencils Shapes for Visio - v3 - RF Cafe

With more than 780 custom-built symbols, this has got to be the most comprehensive set of Visio Stencils available for RF, analog, and digital system and schematic drawings! Every object has been built from scratch to fit proportionally on the provided A- and B-size drawing page templates (you can use your own page if preferred). Components are provided for equipment racks (EIA and ETSI) and test equipment, system block diagrams and conceptual drawings, and for schematics ...

Windfreak Technologies
Antenna Test Lab - RF Cafe
About RF Cafe
Kirt Blattenberger - RF Cafe Webmaster
Copyright: 1996 - 2018
    Kirt Blattenberger,

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

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