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Mathematical model of a signal of radar on the base of antenna array with two-dimensional frequency scanning
- Authors: Bankov S.E.1, Komarov A.A.1, Mikhailov M.S.1
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Affiliations:
- Kotelnikov’s Institute of Radio Engineering and Electronics
- Issue: Vol 69, No 5 (2024)
- Pages: 403-413
- Section: ЭЛЕКТРОДИНАМИКА И РАСПРОСТРАНЕНИЕ РАДИОВОЛН
- URL: https://ruspoj.com/0033-8494/article/view/650670
- DOI: https://doi.org/10.31857/S0033849424050012
- EDN: https://elibrary.ru/ILSOQV
- ID: 650670
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Abstract
An antenna array with series excitation and its application as part of a radar with linear frequency modulation are considered. An analysis of an array consisting of Na parallel one-dimensional sub-arrays with series excitation forming a two-dimensional radiating array and coupling waveguides connecting the output of the n-th sub-array with the input of n+1 sub-array through 180° waveguide turns is presented. An approximate model of the antenna is proposed, which makes it possible to determine its main technical characteristics. Using the developed model, the time characteristics of the signal at the output of an ultrahigh frequency unit of a homodyne radar with linear frequency modulation are investigated. The dependences of the array quality indicators on the scattering parameters of elementary radiators and waveguide 180° turns are analyzed, and the technical requirements for them are formulated. It is shown that the radar provides scanning in the sector of azimuth angles ± 40° and ± 10° in the elevation with a frequency deviation in the 2 GHz band.
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About the authors
S. E. Bankov
Kotelnikov’s Institute of Radio Engineering and Electronics
Author for correspondence.
Email: sbankov@yandex.ru
Russian Federation, Mokhovaya str, 11, bild. 7, Moscow, 125000
A. A. Komarov
Kotelnikov’s Institute of Radio Engineering and Electronics
Email: sbankov@yandex.ru
Russian Federation, Mokhovaya str, 11, bild. 7, Moscow, 125000
M. S. Mikhailov
Kotelnikov’s Institute of Radio Engineering and Electronics
Email: sbankov@yandex.ru
Russian Federation, Mokhovaya str, 11, bild. 7, Moscow, 125000
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