Leland Teschler, Executive Editor Here’s the latest IoT security nightmare: All of the wireless routers through which most IoT traffic passes are probably vulnerable to botnets and other kinds of security breaches. That’s the conclusion of researchers at Fraunhofer FKIE in Germany who analyzed 127 different routers sold by seven vendors. The routers they examined […]
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Using optical fibers for temperature measurement, Part 1: Context
Among the many ways to sense temperature, combinations of advanced optical principles used with optical fibers offer very different approaches, with application advantages and implementation limitations. Temperature is the most widely sensed physical parameter; it’s that simple. What’s not simple is the many ways we have of measuring it through the use of sensors such […]
What is 5G femto application platform interface (5G FAPI)?
The 5G femto application platform interface (5G FAPI, or simply FAPI) published by the Small Cell Forum (SCF) is a suite of specifications that enable small cells to be built up piece-by-piece using components from different suppliers. It can be viewed as a subset of the network functional application platform interface (nFAPI), also published by…
5 tips for designing with embedded antennas
Designing an antenna into a wireless embedded or IoT device requires special care to maximize performance.
Testing Wi-Fi 6E performance
The 6 GHz band brings 1,200 MHz of additional spectrum to Wi-Fi which complicates the task of testing a verifying features. Eve Danel, LitePoint Now that the 6 GHz region of the spectrum is available for unlicensed use, Wi-Fi 6E devices are on their way to store shelves. Manufacturers face the juggling act of comprehensively […]
Power distribution network integrity in embedded systems – Part 2
Welcome to this Virtual Interview on power distribution network (PDN) integrity in embedded systems. We are here today with Heidi Barnes (HB), Senior Application Engineer for PathWave EDA for High Speed Digital with Keysight Technologies. The following is from an interview with Heidi by EEWorld’s Jeff Shepard where they discuss the use of decoupling capacitors […]
Power distribution network integrity in embedded systems – Part 1
Welcome to this Virtual Interview on power distribution network (PDN) integrity in embedded systems. We are here today with Heidi Barnes (HB), Senior Application Engineer for PathWave EDA for High-Speed Digital with Keysight Technologies. The following is from an interview with Heidi by EEWorld’s Jeff Shepard, where they discuss printed circuit boards, ground planes, and […]
The difference between TDR instruments and scope-based TDR measurements
Often a transmission line is buried, concealed behind finish surfaces, or otherwise not readily accessible. So it is difficult to locate faults by means of visual inspection. It is, however, feasible to locate such discontinuities via a test instrument known as the time domain reflectometer (TDR). The TDR is sometimes compared to a radar installation, […]
A comparison of EMI test setups and specifications for automotive, industrial and defense applications, part 1: conducted emissions
by Timothy Hegarty, Applications Engineer, Texas Instruments This article compares electromagnetic interference (EMI) requirements in automotive, industrial, and defense product family standards, specifically various test parameters, test equipment, test setups, and test methods [1-4] for conducted emissions (CEs). The comparison includes widely used dedicated standards in each industry: Comité International Spécial des Perturbations Radioélectriques (CISPR) […]
Unlicensed spectrum use: What’s the technology behind it?
Unlicensed LTE lets wireless carriers offload traffic to Wi-Fi frequencies, but it must coexist with Wi-Fi and not interfere. Here’s how it works.
