Microwaves emanating from electronic components such as the printed circuit board sketch at the left are addressed in three ways: sometimes no shielding is required; a reflective shield in the form of a local cover for the components, or the entire electronic enclosure can be fitted up as a shield; an absorber pad shield which soaks up the RF and converts it to imperceptible heat energy.
The latter Absorber Shield method deals with the unwanted microwave energy right at the source and prevents re-radiation and reflection of the signals so that neighboring components are unaffected.
