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Novel miniaturized circulator opens way to doubling wireless capacity

Re-inventing the integrated circuit.


Since the advent of the integrated circuit in 1958, the same year the Advanced Research Projects Agency was established, engineers have been jamming ever more microelectronic integration into ever less chip real estate. Now it has become routine to pack billions of transistors onto chips the size of fingernails.

DARPA (the D for Defense was first added in 1972) has played key roles in this ongoing miracle of miniaturization, giving rise to new and sometimes revolutionary military and civilian capabilities in domains as diverse as communication, intelligence gathering, and optical information processing. ‎Now a DARPA-funded team has drastically miniaturized highly specialized electronic components called circulators and for the first time integrated them into standard silicon-based circuitry. The feat could lead to a doubling of radiofrequency (RF) capacity for wireless communications—meaning even faster web-searching and downloads, for example—as well as the development of smaller, less expensive and more readily upgraded antenna arrays for radar, signals intelligence, and other applications.

The work, funded under DARPA’s Arrays at Commercial Timescales (ACT) program, was led by Columbia University electrical engineers Harish Krishnaswamy and Negar Reiskarimian and described in the April 15, 2016 issue of the journal Nature Communications.

How bots will change the Web, according to a bot we built to answer that question

I am still not convinced that everyone fully understands how bot technology is about to change IoT and its impact to online business industry. Let me share a few ideas: Financial Auditing and accounting. Bots will be able to do a more thorough job in managing, tracking, reporting financials that many finance back office controls can be performed by bots and requiring a sign off by CFO/ Lead Controller. And, Accounting & Audit firms can easily leverage the technology to perform audits on companies remotely without having to send teams of auditors to a client’s site.

Here’s another one; I decide to set up a few 3D printers to make some unique seals for aircraft manufactures for their jets/ planes; and I need a call center plus online sales teams taking and processing orders. With bot technology my whole operation is automated and no need for sales people, call center folks, or operators. All I need is myself and couple of techies to manage the bot operations; and more profit for me and my team.

However, we still have to keep a tight oversight on hacking which is still a risk; however, we should see more micro-size companies spin up as a result of online bots and 3D printers in our immediate future.


Don’t even TRY to get Intersect Bot to talk about Trump or the Holocaust.

Micro spaceships powered by lasers to search for alien life

Microscopic spaceships powered by Earth-based lasers are being developed to hunt for extra-terrestrial life in Alpha Centauri, the closest star system to ours.

The £70m Breakthrough Starshot concept involves creating a tiny robotic spacecraft, no larger than a mobile phone chip, which would carry cameras, thrusters, a power supply and navigation and communication equipment.

Physicist Stephen Hawking, Facebook founder Mark Zuckerberg and Russian internet billionaire Yuri Milner have all joined the project’s board giving it major backing.

WiFi capacity doubled at less than half the size

“This technology could revolutionize the field of telecommunications,” says Krishnaswamy, director of the Columbia High-Speed and Mm-wave IC (CoSMIC) Lab. “Our circulator is the first to be put on a silicon chip, and we get literally orders of magnitude better performance than prior work. Full-duplex communications, where the transmitter and the receiver operate at the same time and at the same frequency, has become a critical research area and now we’ve shown that WiFi capacity can be doubled on a nanoscale silicon chip with a single antenna. This has enormous implications for devices like smartphones and tablets.”

Krishnaswamy’s group has been working on silicon radio chips for full duplex communications for several years and became particularly interested in the role of the circulator, a component that enables full-duplex communications where the transmitter and the receiver share the same antenna. In order to do this, the circulator has to “break” Lorentz Reciprocity, a fundamental physical characteristic of most electronic structures that requires electromagnetic waves travel in the same manner in forward and reverse directions.

“Reciprocal circuits and systems are quite restrictive because you can’t control the signal freely,” says PhD student Negar Reiskarimian, who developed the circulator and is lead author of the Nature Communications paper. “We wanted to create a simple and efficient way, using conventional materials, to break Lorentz Reciprocity and build a low-cost nanoscale circulator that would fit on a chip. This could open up the door to all kinds of exciting new applications.”

Graphene is both transparent and opaque to radiation

A microchip that filters out unwanted radiation with the help of graphene has been developed by scientists from the EPFL and tested by researchers of the University of Geneva (UNIGE). The invention could be used in future devices to transmit wireless data ten times faster.

EPFL and UNIGE scientists have developed a using graphene that could help wireless telecommunications share data at a rate that is ten times faster than currently possible. The results are published today in Nature Communications.

“Our graphene based microchip is an essential building block for faster wireless telecommunications in frequency bands that current mobile devices cannot access,” says EPFL scientist Michele Tamagnone.

How To Get Better At Quantum Computing: Make A Game Of It

Creative approach and I like it. I advise IT leaders, developers, architects, etc. to start learning as much as they can about Quantum Technology because technology in the next 6 to 7 years will begin the accelerated adoption of this technology and at that point it will be too late for folks in tech to catch up. Now is the time to learn and keep track of the progression of this technology as well as understand where and how this technology can be leveraged earlier in various areas of the infrastructure, devices, and even in industry.


Researchers gave internet users games that simulate quantum physics experiments, and internet users gave the researchers more elegant solutions.

Advances in quantum communication will come from investment in hybrid technologies explain Stefano Pirandola and Samuel L

The question is what does Stefano Pirandola and Samuel L. Braunstein consider “hybrid” when it comes to QC? In much of the Quantum research today only shows us things like “synthetic diamonds”, etc. are added to stablize data storage and transmissions not much else.


Physics: Unite to build a quantum Internet. Braunstein.

Second digital revolution

Many folks talk about the whole AI revolution; and indeed it does change some things and opens the door the for opportunities. However, has it truly changed the under lying technology? No; AI is still reliant on existing digital technology. The real tech revolution will come in the form of Quantum tech over the next 7 to 8 years; and it will change everything in our lives and industry. Quantum will change everything that we know about technology including devices, medical technologies, communications including the net, security, e-currency, etc. https://lnkd.in/bJnS37r


If you were born in the 1970s or 1980s, you probably remember the Jetsons family. The Jetsons are to the future what the Flintstones are to the past. That futuristic lifestyle vision goes back several decades; self-driving vehicles, robotic home helpers and so on. What looked like a cartoon series built on prolific imagination seems somewhat more real today. Newly developed technologies are becoming available and connecting everything to the internet. This is the-internet-of-things era.

These ‘things’ are not new. They are just standard devices – lights, garage doors, kitchen appliances, household appliances – equipped with a little intelligence. Intelligence that is possible thanks to three emerging technologies: sensors to collect information from surroundings; the ability to control something; and communication capability allowing devices to talk to each other.

Think of cars that park on their own or that brake automatically to avoid a collision; smart assistants that will notify you to leave early for a calendar appointment in case heavy traffic en route; or a robotic vacuum cleaner that starts cleaning once everyone has left the house. This is the Jetsons’ kind of future.