Decoupling of Two Closely Located Dipole Antennas by a Split-Loop Resonator

In this letter, we theoretically and experimentally prove the possibility of the complete passive decoupling for two parallel resonant dipoles by a split-loop resonator. Unlike previously achieved decoupling by a similar resonant dipole, this decoupling technique allows us to avoid the shrink of the operation band. Compare to previous work, simulation and measurement show 100\% enhancemnet of relative operation band from 0.2% to 0.4%