Non-contact PIM measurement of dielectric wave absorbers by using a metallic resonator

This paper proposes a non-contact PIM-measurement method for dielectric wave absorbers. It is shown experimentally that the PIM characteristics of a dielectric wave absorber can be measured in an open-ended coaxial tube by mounting a metallic resonator on the tested sample. An experimental result using a small piece of absorber is also presented to show that the PIM produced by dielectric absorbers is based on the electric-mode.