Reher, F.F.ReherNarbudowicz, A.A.NarbudowiczAmmann, M.J.M.J.AmmannHeberling, D.D.Heberling2022-03-142022-03-142017https://publica.fraunhofer.de/handle/publica/40220810.23919/EuCAP.2017.7928579A new equivalent circuit based Wheeler Cap method to calculate MIMO efficiency is introduced. The method works without the necessity for interpolation by avoiding concur of resonating and cavity modes. The method is tested with a set of three differently correlated MIMO antennas. Results are compared with the recently proposed quality factor method for MIMO antennas and efficiency data from spherical near field measurements.en621conference paper