An isolator in RF engineering is an thin spacer placed between an antenna and an electromagnetically lossy object to improve radiation characteristics. Isolators are commonly used in RFID to overcome losses when RFID tags are placed on metallic objects. This set of notes provides an overview of UHF (Ultra-high-frequency) and microwave isolator operation. Notes on UHF Isolators
New YouTube video on on the topic of DVB-S2 modulation for satellite video. This was a lecture that I captured in Shenzhen last year as part of a “refresh” of topics in the Satellite Communications course. Learn about the second generation upgrades to the Digital Video Broadcasting — Satellite Gen 2 standard.
Interesting summary article on the C-SCoRE program. Profs. Vince Mooney and Greg Durgin are spearheading the effort for this DoD program for exposing ROTC students to research.
This is a web article that I wrote as a post-doc many years ago after visiting the famous Yokosuka Research Park in Yokosuka, Japan. While it may not be as big and storied as Silicon Valley, it is one of the great R&D technology power houses of the world. At the time of writing, Japan’s NTT-DoCoMo had recently unveiled the first internet browsing phone (a service called “i-mode”) and were significantly far ahead of the rest of the world. Two decades later, YRP is still going strong with many of the country’s top technology companies located there. [Read more…]