Abstract
A wideband stacked patch antenna decoupling technique is proposed in this paper. The shorted stacked microstrip patch antenna (SS-MPA) achieves excellent isolation between E-plane coupled elements while the coupling between H-plane coupled elements is relatively large. By employing the triangular layout, the H-plane coupling is lessened to a certain extent. To further reduce the mutual coupling between the adjacent elements, a pair of twisted slits on the ground along the non-radiating edge of the SS-MPA are etched, which introduces a new decoupling null in the coupling curve of the intersecting elements, achieving a good decoupling performance in the SSMPA array. Results indicate that good decoupling performance can be realized.
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