Decoupled Patch Antennas Using Electric and Magnetic Coupling Cancellation

A decoupling technique for reducing the mutual coupling between two patch antennas is introduced in this paper. The antennas under investigation are two rectangular patch antennas with an air substrate, being placed within a very small distance. The decoupling is facilitated by controlling the electric and magnetic couplings between two patch resonators, involving no extra complicated structures. Only with some minor modifications to the patch's shapes, good decoupling performance can be obtained between two patches.