Decoupling For Two Closely Placed Antennas Along the E-/H-plane Utilizing Double Slots

In this paper, E-/H-plane decoupling for two closely placed high-gain antenna with double slots is proposed. The current distribution of the TM30 mode is changed by etching double slots in the middle of the patch, what’s more, the realized gain is increased and a realized gain null is generated in the lower passband. Two closely placed patches along E-plane and H-plane generate deep coupling nulls. The simulation results show the maximum in -band realized gain of 9.18dBi, a realized gain null at 4.39GHz, the coupling coefficients a long E-plane and H-plane are better than 25.05dB and 31.37dB.