Electromagnetic fields transformation in UWB infinite antenna arrays in the cluster excitation mode
- Authors: Bankov S.E.1, Duplenkova M.D.1
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Affiliations:
- Kotelnikov Institute or Radioengineering and Electronics RAS
- Issue: Vol 69, No 3 (2024)
- Pages: 207-216
- Section: АНТЕННО-ФИДЕРНЫЕ СИСТЕМЫ
- URL: https://kazanmedjournal.ru/0033-8494/article/view/650696
- DOI: https://doi.org/10.31857/S0033849424030011
- EDN: https://elibrary.ru/JVRVFC
- ID: 650696
Cite item
Abstract
Infinite ultra-wideband (UWB) arrays of TEM horns and Vivaldi antennas were considered. At the first stage we used an array model in the quasi-periodic excitation mode in the form of a Floquet channel. It was implemented in the HFSS electromagnetic modeling system. At the second stage the array parameters in the cluster excitation mode were determined using the calculated scattering matrix of the Floquet channel. Two clusters of TEM horns and Vivaldi antennas were analyzed. They were finite along one coordinate and infinite along the other. It was investigated how the cluster size, frequency, amplitude distribution of exciting waves, scanning in the sector of angles affect the shape of the amplitude-phase distribution of the field in the array aperture. It was shown that the field distribution in the emitting aperture may differ significantly from the distribution of exciting waves at the inputs of the array elements. An explanation of this effect based on the representation of the field in the array in the form of a superposition of its eigen waves was proposed.
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About the authors
S. E. Bankov
Kotelnikov Institute or Radioengineering and Electronics RAS
Email: duplenkova@yandex.ru
Russian Federation, Mokhovaya Str. 11, build. 7, Moscow, 125009
M. D. Duplenkova
Kotelnikov Institute or Radioengineering and Electronics RAS
Author for correspondence.
Email: duplenkova@yandex.ru
Russian Federation, Mokhovaya Str. 11, build. 7, Moscow, 125009
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