This app note gives an overview of the physical layer (radio) aspects of Long Term Evolution (LTE) plans for cellular systems. It provides a good summary of the important concepts.

Successfully troubleshooting EMI/EMC problems isn't easy. You need time, you need a strategy, and you need to remain calm. Sometimes, you need a special "sixth sense" that only comes from experience because in some cases, your problems aren't even related with the EUT (equipment under test).

From the presentation:

This talk is mostly about a new class of power dividers, but who would come to a talk with the boring title “A New Class of Power Dividers?"

This blog post is a few years old, but remains very interesting to see the difference in performance among USB wall chargers. Ever wonder about the difference between the expensive name-brand charger and the cheap imitation? This article gives in depth examination of the noise emanating from these devices. An interesting side effect of unwanted electrical noise from the chargers is that the touch-screen on your device can become unresponsive or erratic in some cases.