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. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.