You might have noticed, in spite of the title of this series, we have discussed the current induced in the RFIC silicon ground rather than the patterned ground shield that designers add to reduce the current in silicon. As I mentioned in Part 1, we must understand our enemy before we can deal with our enemy. We now understand our enemy.
Electromagnetic (EM) simulation has become commonplace for RF and microwave circuit designers. This viewpoint article examines current trends with regard to how designers use EM tools inside of circuit simulators.
Our first column in this series (Testing Modern Radar System Signals: A Primer) focused on the advances made in radar systems and the traditional measurements made with a vector network analyzer (VNA) to verify their design. In this second installment, the focus will be on improvements made to VNA architectures and their importance in testing today’s more advanced radar systems.