do you find any diffculties with low frenqency part measurement
ans: The coupler in VNA has directivity issues at lower frequencies, so yes we do and I have examples of this in later day of simple validation of low frequency calibration validation. Low frequency issues are a large percentage of problems, especially for causality and passivity.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Are the design challenges the same as with embedded systems, but with a little developer- and IT-skills added in? What do engineers need to know? Rick Merritt talks with two experts about the tools and best options for designing IoT devices in 2016. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.