Electromagnetics


Q-TrackIndoorLocationAccuracy
One fun aspect of working in a new technology is the harder you work, the better performance gets. The performance of Q-Track’s Near-Field Electromagnetic Ranging indoor location systems just got even better. Bob DePierre and I started off in the ultrawideband (UWB) industry years ago – I designed antennas, and […]

Through Wall Indoor Location


I’m pleased to announced a special offer for ÆtherCzar readers and fans, courtesy of my publishers at Artech House.The Art and Science of Ultrawideband Antennas is now available at a 25% discount direct from the publisher: For my US readers: $103 discounted from the regular $139 price For my UK readers: […]

25% Off The UWB Antenna Book! And Why You Should Buy It



This morning at 11:00 am, I will present a forum in the Embassy Suites Redstone Room at the 2016 Huntsville Hamfest. I will offer some answers to the question, “What is the Near Field?” This talk explains the near field, taking waves propagating along transmission lines as a starting point. […]

What is the Near Field?


Schantz-Energy-Flow-Newcastle
I’m honored and delighted to have been invited to Newcastle University by the Newcastle Electromagnetics Interest Group to speak on “Energy Flow in Reactive Fields,” Tuesday, 6 September, 2016 from 11am to 1pm at The Buttery, Merz Court, School of Electrical and Electronic Engineering. Here’s the official flyer: And here’s […]

Energy Flow in Reactive Fields at Newcastle University



Ettore Majorana By Unknown (Mondadori Publishers) - [1] [2], Public Domain, https://commons.wikimedia.org/w/index.php?curid=25465979
He was one of the greatest physicists of the 20th century. Enrico Fermi, the Italian physicist who created the very first nuclear reactor noted: “There are several categories of scientists in the world; those of second or third rank do their best but never get very far. Then there is […]

The Mystery of the Missing Physicist: Ettore Majorana


By Walter Siegmund (talk) - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=9964371
Given a decent view of the sky, a GPS receiver can determine your latitude and longitude to a high degree of accuracy as good as a meter or so. But what if the latitude and longitude themselves are in error? That’s the problem faced by the continent of Australia. Every […]

How Science Misplaced Australia



This is an amazing video showing the creation of Lichtenberg figures burned into wood. This is very dangerous, if you’re not used to dealing with high voltage. Don’t try this at home.

Lichtenberg Wood Burning


This morning brings news that 5D Robotics of Carlsbad, California has acquired Huntsville-Alabama based ultrawideband (UWB) pioneer, Time Domain Corporation. Time Domain President, Rachel Reinhardt, writes: 5D has been a long-standing customer of Time Domain. We have worked closely and developed a cultural affinity and mutual respect for one another […]

5D Robotics Acquires UWB Pioneer Time Domain



Michael Faraday (1791-1867) holds a glass bar in which he demonstrated the influence of magnetism on light.
Steven Dufresne at Hackaday has a great piece up on the history of the capacitor: “The history of capacitors starts in the pioneering days of electricity. I liken it to the pioneering days of aviation when you made your own planes out of wood and canvas and struggled to leap […]

History of the Capacitor


The folks at Microwaves101 have been working with Bharath, a student in India, on an interactive Smith chart. They to add it permanently to Microwaves101. The temporary version is here: www.bbk005.net23.net/ Please take a look and post comments on what could be done to make this a more useful tool.

An Interactive Smith Chart



RamoWhinneryVanDuzer
Simon Ramon (1913-2016) died June 27, in Santa Monica, California. The 103-year-old left behind a legacy of RF, intellectual, and business achievement. A pioneer in the development of microwave and radar technology, he was the “R” in TRW, a predecessor of which he co-founded in 1953. Ramo became the architect […]

RF Engineer, Author, and Entrepreneur, Simon Ramo, Dead at 103


Tesla160
In honor of Nikola Tesla’s 160th birthday, yesterday, the Institute of Electrical and Electronics Engineers (IEEE) put together some interesting facts about his life. Click through for more!

Happy Birthday, Nikola Tesla!



Dr. Arun Venkatasubramanian, Cambridge Consulting
Implantable wireless devices that communicate by Bluetooth and deliver finely crafted electrical impulses to induce biological effects in human subjects? Cue the lightning and the maniacal laughter! It may sound like mad science, but it’s actually a cutting edge therapeutic technique with the potential to revolutionize medicine in novel ways. […]

It Sounds Like Mad Science – Learn More!




Circuit Physics Models
My work explores the practical aspects of how bound, stored, or static electromagnetic energy transforms into moving electromagnetic energy. I’ve applied this expertise in the design of ultra-wideband (UWB) antennas, as well as in wireless systems that operate using near-field wireless principles. Q-Track designs indoor location systems that locate tags […]

Dirac’s Big Mistake: What EM Tells Us About QM




Noted antenna engineer, Alan Boswell of Great Baddow, Essex, UK, died August 5, 2015 at Broomfield Hospital. His funeral was on August 20 at Chelmsford Crematorium. Should you wish to make a charitable donation in his memory, two charities that were close to Alan’s heart are the British Lung Foundation […]

Sad News: Alan Boswell Died August 5, 2015


Two slit interference of waves.
The folks at Loughborough University in the UK have developed and released a fascinating educational application to illustrate the behavior of waves. The Loughborough Wave App offers an intuitive interface to allow the user to explore a variety of simple wave phenomena. This is not an analytic tool. Rather it’s […]

Loughborough Wave Lab App



hfd
One of the great pleasures of having written a book is hearing feedback from readers. I’m particularly interested in readers who have applied ultrawideband antenna ideas and concepts to solve problems with which I was completely unfamiliar. Martin Judd of High Frequency Diagnostics in Glasgow, Scotland has graciously agreed to […]

Kind Words and Interesting Problems


I will be presenting a Lunch-N-Learn seminar to the Joint Communications, Antennas & Propagation, and Microwave Theory and Techniques (JCAM) Chapter of the Huntsville Section of the IEEE this Wednesday, August 19, at 11:15 am to 12:45 pm. Lunch (Chicken Tenders) will be served, courtesy of our hosts at Technology […]

Energy Flow in Reactive Fields



1
Noted antenna expert, Alan Boswell, was kind enough to share his thoughts on the second (revised) edition of The Art and Science of UWB Antennas. His review follows… The first thing to say to someone familiar with antennas who picks up this book is that its subject matter is not […]

Alan Boswell Reviews The Art and Science of UWB Antennas




SafeSpot protects workers by warning of potential accidents before they happen.
SafeSpot™ systems make busy workplaces safer by warning pedestrians and forklift drivers of potential collisions. The system triggers a warning around blind corners if a forklift-forklift or forklift-pedestrian collision is imminent. Q-Track’s innovative system employs near-field electromagnetic ranging to detect proximity of forklifts and passive IR to detect pedestrians. Workers […]

Innovative Forklift Safety Product Now Available


UWB Book Slider
Professor Steve Holland of the Milwaukee School of Engineering is an expert on UWB antennas and broadband matching. He reviewed Chapter 4 of my book as I was writing it, and he provided me with helpful feedback and insights on matching UWB antennas. His conference paper “Wideband Impedance Matching Techniques” […]

Another Great Review for The Art and Science of UWB Antennas