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Radiation of a flat piston in a wedge-shaped waveguide. (Ukrainian. English summary) Zbl 07450284

Summary: In the work the task of radiation of a flat piston in a wedge-shaped waveguide is considered. The peculiarities of the radiation of a flat piston into a wedge-shaped waveguide depending on the parameters of the task, namely, the angle of inclination of the wedge and the wave size of the piston, that is the ratio of the piston length to the wavelength it emits, are investigated. The directional charts of a flat piston in a wedge-shaped waveguide at different angles of the wedge are calculated. It is shown that at a certain ratio between the wave size of the piston and the angle of inclination of the wedge, it is possible to have a minimum in the directional chart along the axis of symmetry of the wedge. Calculations of the pressure modulus in the vicinity of the piston are performed, which illustrate how the failure in the directional chart in the direction of the waveguide axis is gradually formed.

MSC:

76Q05 Hydro- and aero-acoustics
78A50 Antennas, waveguides in optics and electromagnetic theory
78A40 Waves and radiation in optics and electromagnetic theory
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