Myakisheva Mariya Sergeevna, Student, Nizhny Novgorod State Technical University named after R. E. Alekseev (24 Minin street, Nizhny Novgorod, Russia), firstname.lastname@example.org
Kisilenko Kirill Igorevich, Senior lecturer, sub-department of physics and technology of optical communication, Nizhny Novgorod State Technical University named after R. E. Alekseev (24 Minin street, Nizhny Novgorod, Russia), email@example.com
Timofeev Evgeniy Petrovich, Candidate of engineering sciences, professor, sub-department of physics and technology of optical communication, Nizhny Novgorod State Technical University named after R. E. Alekseev (24 Minin street, Nizhny Novgorod, Russia), firstname.lastname@example.org
Background. A promising direction to enable high-speed transmission of information is the development of instruments and devices in the terahertz range. The aim of the present work is to design the antenna in the range of 105-115 GHz with the achievement of high values of amplification coefficient at low values of beam width main lobe. The system should provide a narrow radiation to provide efficient communication systems. Small dimensions the device is another important criterion advanced by modern devices. The simplification of the feed layer of the antenna is presented.
Materials and methods. After a reasonable choice of topology, device, modeling, optimization and calculation of the main characteristics of the device produced in CAD CST Microwave Studio. Electrodynamic analysis of the structure based on the use of the finite element method. Optimization consisting in a more accurate adjustment of the geometric parameters of the device to achieve the desired characteristics based on the local method Classic Powell.
Results. Computer model was developed of slotted antenna arrays. The compact variant of the device performance was proposed with planar feed layer. Primary analysis and optimization was performed for lattices of dimensions 16×16 and 32×32. For antenna arrays with a large number of radiating cracks a modernization with the introduction of additional power supply layer. It was mapped the main characteristics of the devices. It was research influence on device characteristics, the introduction of the projections at a distance of quarter wavelength from dividing the power supply layer.
Conclusions. The introduction of the protrusions in the supply layer at a distance of quarter wavelength from the place of division of power not only improves the basic characteristics of the device, but also increases unwanted reflections. By increasing the dimension of the antenna array, the negative impact of the projections on the reflection coefficient increases. The rejection of these tabs allows to simplify the manufacture of the device in connection with the simplification of one of the layers.
antenna array, slot antenna, terahertz range, CAD CST Microwave Studio, directional pattern, waveguide power system
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