Archives of Acoustics, 44, 2, pp. 301–307, 2019
10.24425/aoa.2019.128493

A Study of Directional Patterns of Ultrasonic Parametric Array

Denis Sergeevich RAKOV
1. National Research Tomsk Polytechnic University 2. Institute of Monitoring of Climatic and Ecological Systems SB RAS
Russian Federation

Aleksandr S. RAKOV
1. Institute of Monitoring of Climatic and Ecological Systems SB RAS 2. Tomsk State University of Control Systems and Radioelectronics
Russian Federation

Andrey N. KUDRYAVTSEV
V.E. Zuev Institute of Atmospheric Optics SB RAS
Russian Federation

Nikolay P. KRASNENKO
1. Institute of Monitoring of Climatic and Ecological Systems SB RAS 2. Tomsk State University of Control Systems and Radioelectronics
Russian Federation

Yury A. CHURSIN
National Research Tomsk Polytechnic University
Russian Federation

Maksim A. MURIN
National Research Tomsk Polytechnic University
Russian Federation

The paper presents results of numerical calculations and experimental data on the directional pattern of two 38-element parametric arrays composed of ultrasound sources. Two types of antenna arrays are considered, namely with parallel and coaxial connections of ultrasonic transducers (elements). The results of selecting and functional testing of unit elements are described in this paper. It is found that in the coaxial element connection of the antenna array, the level of side lobes is higher than that in the parallel element connection.
Keywords: antenna array; ultrasonic transducer; primary frequency; differential frequency; parametric array
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DOI: 10.24425/aoa.2019.128493

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