If you meant " high frequency " in a general sense, e . g . you're setting up a radar transmitter, then the ratio of wavelength to housing dimensions might be small enough that the housing is functioning as a wave guide, so its shape would make a difference.
32.
Dr . Hau was awarded her PhD from the University of Arhus in 1991 after completing a dissertation on the " channeling " of electrons along strings of atoms in a silicon crystal, as if the atomic strings were miniature wave guides, like the optical fibers used to guide light.
33.
A movable electrode in the wave guide functions as a drill bit; it's pushed through the surface into the hot spot, forming a hole, and withdrawn as the material cools . ( Just as with a microwave oven, the drill must be shielded to prevent hazardous microwaves from leaking out .)
34.
According to pilot wave theory, the point particle and the matter wave are both real and distinct physical entities . ( Unlike standard quantum mechanics, where particles and waves are considered to be the same entities, connected by wave particle duality . ) The pilot wave guides the motion of the point particles as described by the guidance equation.