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On the use of wheeler cap for MIMO antennas

: Reher, F.; Narbudowicz, A.; Ammann, M.J.; Heberling, D.


Sibille, A. ; Institute of Electrical and Electronics Engineers -IEEE-; European Association on Antennas and Propagation -EurAAP-:
11th European Conference on Antennas and Propagation, EUCAP 2017 : 19-24 March 2017, Paris
Piscataway, NJ: IEEE, 2017
ISBN: 978-88-907018-7-0
ISBN: 978-1-5090-3742-1
European Conference on Antennas and Propagation (EUCAP) <11, 2017, Paris>
Fraunhofer FHR ()

A 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.