In traditional electromagnetic theory, scalar waves do not possess a separate magnetic field component. Scalar waves are hypothetical waves that are described by a scalar field rather than a vector field. They are characterized by having only magnitude and no direction.
In contrast, electromagnetic waves, such as radio waves, are described by vector fields consisting of both electric and magnetic field components. These waves propagate through space in a coordinated manner, with changes in one field causing changes in the other.
However, it is worth noting that the concept of scalar waves is not widely accepted in mainstream physics. Scalar waves are primarily discussed in alternative or fringe theories. These theories propose the existence of scalar waves as a separate type of wave that can carry information or energy without the need for a corresponding electromagnetic field.
In such alternative theories, it is conceivable that there may be interactions or couplings between scalar waves and magnetic fields. However, it is important to note that these ideas are not widely supported or substantiated by empirical evidence. The understanding and description of fundamental physical phenomena, including electromagnetic waves, are best explained by the well-established framework of classical electromagnetism and quantum electrodynamics.