Destructive interference is common when measuring the reflection from a sample. When the microwave radiation encounters the dielectric sample under test, some is reflected from the surface and some is transmitted into the material, reflects back again
https://www.powershow.com/view1/b6e6e-ZDc1Z/Destructive_interference_is_common_when_measuring_the_reflection_from_a_sample_When_the_microwave_radiation_encounters_the_dielectric_sample_under_test_some_is_reflected_from_the_surface_and_some_is_transmitted_into_the_material_reflects_back_again_powerpoint_ppt_presentation
Icons create by Freepik from www.flaticon.com/