Mutual coupling reduction between two patch antennas using a new miniaturized soft surface structure

Two patch antenna elements are designed to work at 5.8 GHz frequency. The E-plane mutual coupling between the two antenna elements has been reduced by 10 dB by using a new miniaturized soft surface structure that allows a λ
₀
/2 distance between the patches. The radiation patterns show no significant change in the radiation characteristics, but better directivity, which is expected.