On Reduction of Mutual Coupling Effect, for Square Loop Antenna Arrays

The purpose of this paper is to present a unique approach for reducing the mutual coupling between two square loop antennas resonating at 26 GHz. In order to achieve this, parasitic elements are employed in the initial design resulting in a very compact Multiple-Input- Multiple-Output (MIMO) array with an overall size of 28.4 x 14 x 0.8 mm3 with a peak of mutual coupling at -49.19 dB.