Fig. 2From: The planar Multipole Resonance Probe: a functional analytic approachSchematic of the pMRP (courtesy of D. Pohle, C. Schulz, and I. Rolfes), which consists of two half-disc electrodes with radius RS conducted to a tapered-balun and a coaxial cable. The electrodes are covered by a dielectric disc, which avoids a direct contact with the plasmaBack to article page