One potential source of emissions is the switching node, referred to as SW on many schematics. The SW node copper can act as an antenna, transmitting the noise generated by fast and efficient high power switching events. This is the main source of emissions for most switching regulators.
Gengyao Li is an applications engineer within the Power Products Group in Santa Clara, California. She is responsible for the design and evaluation of DC-to-DC converters including boost, buck-boost, and LED drivers. Gengyao received her M.S. degree in electrical engineering from the Ohio State University in 2017.