Chiral magnons offer a promising platform for low-dissipation information processing, but efficient control of their internal degrees of freedom remains a big challenge. Here we demonstrate that dipolar interactions provide an intrinsic mechanism for coherent control of magnon chirality in antiferromagnets. Using an effective two-band model, we show that dynamical dipolar fields induce coherent hybridization between opposite-chirality antiferromagnetic magnon modes, giving rise to Rabi oscillations. The oscillation frequency is highly sensitive to material parameters and geometry, enabling multiple routes for tunable control. By engineering magnetic heterostructures, we further demonstrate chirality-selective magnon confinement in Fabry-Pérot–type resonators and the formation of one-dimensional magnonic crystals. Our findings are validated by atomistic spin-dynamics simulations and micromagnetic simulations, establishing dipolar-induced chiral hybridization as a viable mechanism for controlling antiferromagnetic spin waves. These results open new avenues for chirality-based magnonic devices and antiferromagnetic information processing.

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• Chirality
• Magnonics
• Antiferromagnets
• Magnonic crystals
• Fabry-Pérot interferometry
• Rabi model