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Adaptive Front-Ends Are Here to Stay
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Matching the transponder antenna well to the chip impedance has always been the cornerstone of a well-performing UHF tag. For antenna designers, it is lightly frustrating that each chip brand and model seemed to have their unique impedances, therefore various versions of the same antenna are needed for different chips models.

On the other hand, from the chip designers’ point of view…

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A Major Upgrade for Aerospace RFID Testing
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中文版 Chinese version During this COVID-19 pandemic, as most airplanes are stuck on the ground and several large airplane orders have been canceled, aerospace is probably not considered the hottest market for RAIN RFID. However, eventually, this situation will pass, and more airplanes will be built. When that happens, the aerospace industry will be more ready than ever to use RAIN RFID, due to recent standardization work. Back in 2015, I wrote about the aerospace industry as the pioneers of RFID: “The aerospace industry realized that they need standardization for flyable tags as early as 2006. That is when a group of experts in the... Read more →

Optimizing Counting Reliability With Well-Designed Reader Zoning
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中文版 Chinese version At RFID&WIoT Tomorrow 2019, Erik van Noort from Avery Dennison stopped by a Voyantic booth. He introduced a recently launched ShieldSense™ RFID blocking material. The material is for reader zoning and aimed to help system integrators in building better RAIN RFID systems. After sharing some ideas, we decided to write an article explaining the reader zoning and how to use Voyantic Tagformance to check not only if the zoning works, but how well the zoning works. In this piece, we introduce the ShieldSense™ material with the Tagformance test results. What Is Reader Zoning? Reader zoning is a common cha... Read more →

Sensors, Healthcare IoT and Pigeon Races - Review of RAIN RFID Research in 2017
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Following research activities of RFID is a nice way to keep up with the latest technology developments. Awareness of hot research topics also helps in anticipating the direction of commercial development and new product launches. Here is my take on the published RFID research in 2017. I have included short comments on the research topics, and a number of links to papers published in 2017 that have caught my attention – for one reason or another.

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Testing Against RFID Immunity Makes Medical Devices Future Proof
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Tightening cost, quality of care and efficiency requirements are some of the drivers that highlight healthcare as one of the strongly growing RFID application areas. RFID improves patient safety, raises operational efficiency and reduces shrinkage. To remove possible RFID related risks and uncertainties, a new test standard was created, describing methods for testing Medical Electric Equipment and System Electromagnetic Immunity against RFID readers.

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Vehicle RFID Tags - Big Benefits with Some Challenges
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Electronic Vehicle Identification (EVI) tags are a perfect match to RAIN RFID (UHF RFID) technology. Once a vehicle is tagged, the possibility to identify the vehicle remotely enables a lot of applications and services. While the vehicle tagging is of high interest, it is not the easiest task. In the past few months I have worked with some vehicle tagging projects and learned that the application requires some special attention from technology providers.

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RAIN RFID Tag Read Range: Opinion or Fact?
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Creating a tagging solution for passive RAIN RFID tags to a particular application starts with understanding the application specific requirements. That involves plenty of process engineering, but also typically discussions around the expected read range between tagged items and reader antennas. The read range is impacted by several factors and many start the cooking process by looking at the properties of RAIN RFID tags.

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Battery Assisted Passive (BAP) Tags - Do You Know Your Reader Receiver Sensitivity?
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One of my customers in Taiwan is developing battery-assisted passive (BAP) tags. He called me recently and asked why the read range that they reach with their RFID reader is only a quarter (1/4) of the distance that they measure with their Tagformance RFID measurement system. I answered him with another question: “Do you know your reader receiver sensitivity…?”

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Designing a RAIN RFID Sensor. Simple, or Is It?
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Combine identification, sensors, low cost and years of life time together and you certainly end up with a disruptive mixture that is set to boil over in the near future. RAIN RFID sensors may not be a huge market just yet, but we can see many companies putting a lot of development effort on them. Read on to see an introduction to the six topologies that I’ve seen utilized so far.

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