Proceedings of TUSUR University / Archive / Issue of Journal № 3, t. 26, 2023 / Directional patterns of the acoustic antenna based on two spatially separated phased antenna arrays

Directional patterns of the acoustic antenna based on two spatially separated phased antenna arrays

DOI: 10.21293/1818-0442-2023-26-3-14-19

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Abstract: The article presents the results of research and development of the characteristics of the radiation patterns of acoustic antenna systems (linear arrays), consisting of two flat antenna arrays. Their special feature is a large distance between the elements. It is shown that in the near field zone, the directional pattern of the linear system is close to the array factor for the given system. In the far field zone, the directional pattern, in addition to the main lobe, has other (additional) diffraction lobes that depend on the distance and directional characteristics of the system elements. The total number of lobes in the directional pattern of the sys-tem has been found. To obtain an acceptable directivity pattern, it is necessary to choose the distance between the elements taking into account the directivity patterns of its elements. The technical characteristics of the developed linear systems are given.

Keywords: antenna array, linear system, acoustics, directional characteristic, lateral radiation, sound pressure

Funding: The work was carried out within the framework of the state assignment of the Institute of Microstructures and Ecosystems of the Siberian Branch of the Russian Academy of Sciences under project No. 121031300155-8 and at the expense of the grant of the Russian Science Foundation No. 22-29-00750, https://rscf.ru/project/22-29-00750//, at the Institute of Microstructures and Ecosystems of the Siberian Branch of the Russian Academy of Sciences.

For citation:
Krasnenko N. P., Rakov D. S., Rakov A. S. Directional patterns of the acoustic antenna based on two spatially separated phased antenna arrays. Doklady Tomskogo gosudarstvennogo universiteta sistem upravleniya i radioelektroniki, 2023, vol. 26, no. 3, pp. 14–19. DOI: 10.21293/1818-0442-2023-26-3-14-19

Authors and copyright holders:

Krasnenko N. P. , Institute of Monitoring of Climatic and Ecological Systems, Siberian Branch of the Russian Academy of Sciences (Tomsk, Russia);, Tomsk State University of Control Systems and Radioelectronics (Tomsk, Russia)
Rakov D. S. , Institute of Monitoring of Climatic and Ecological Systems, Siberian Branch of the Russian Academy of Sciences (Tomsk, Russia)
Rakov A. S. , Institute of Monitoring of Climatic and Ecological Systems, Siberian Branch of the Russian Academy of Sciences (Tomsk, Russia)

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