An aperture’s amplitude-phase distribution for forming frequency-independent direction-finding characteristics of a linear antenna arrays


Cite item

Abstract

The aperture’s amplitude-phase distribution of a linear antenna array, ensuring the formation of frequency-independent direction-finding characteristics in a wide frequency band, is considered. The basic regularities of the choice of the amplitude-phase distribution parameters of linear antenna arrays for the case of frequency independent amplitude distribution and frequency dependent phase distribution are investigated. Using the example of a 45-element linear array designed for operation in a frequency band with a relative overlap of 4:1, the influence of the amplitude and phase distribution’s parameters on the magnitude and deviation’s character of the direction-finding characteristics in the operating frequency band is investigated. It is shown that the introduction of a substantially decreasing amplitude distribution contributes to a decrease in the integral standard deviation of the direction-finding characteristics in the frequency band. The relationship between deviation of frequency dependence of the direction-finding characteristics of the array and variations in the frequency dependence of the phase distribution in the aperture is established. The analysis of the basic regularities of the formation of frequency-independent direction-finding characteristics of broadband antenna arrays has been carried out.

About the authors

N.I. Bobkov

JSC «RRI “Gradient”»

Author for correspondence.
Email: ua6lac@mail.ru

D.D. Gabriel’an

FRPC «FSUE “RSRIRC”»

Email: d.gabrieljan2011@yandex.ru

Yu.V. Ivanov

Moscow Technical University of Communications and Informatics

Email: uriy-v-ivanov@yandex.ru

References

  1. Bobkov N.I. [et al.] Postroenie aperturnyh antenn s chastotno-nezavisimymi harakteristikami izluchenija [Construction of aperture antennas with frequency-independent radiation characteristics]. Radiotehnika [Radio engineering], 2016, no. 1, pp. 42–49 [in Russian].U.S. Patent 8466848. Beam shaping for wide band array antennas. Guy D., Pirollo B. 18 June 2013 [in English].Patent № 2099836 Russian Federation. Shirokopolosnaja chetyrehluchevaja zerkal’naja antenna (varianty) [Broadband four-beam mirror antenna (options)] / Bobkov N.I., Bocharnikov A.A., Kashubin B.T., Logvinenko E.L., Savelenko A.A., Sturov A.G., Jashin N.N. Priority 26.09.1994. MPK H01Q 19/17 [in Russian].Bahrah L.D., Kremenetskij S.D. Sintez izluchajuschih sistem. Teorija i metody rascheta [Synthesis of emitting systems. Theory and calculation methods]. M.: Sov. radio, 1974, 223 p. [in Russian].Karavaev V.V., Sazonov V.V. Osnovy teorii sintezirovannyh antenn [Fundamentals of the theory of synthesized antennas]. M.: Sov. radio, 1974, 168 p. [in Russian].Zelkin E.G., Sokolov V.G. Metody sinteza antenn: Fazirovannye antennye reshetki i antenny s nepreryvnym raskryvom [Antenna synthesis methods: Phased array antennas and antennas with continuous opening]. M.: Sov. radio, 1980, 296 p. [in Russian].Gorin A.M., Radchenko N.A. Skanirujuschaja antennaja reshetka so stabil’noj diagrammoj napravlennosti v shirokom diapazone chastot [Scanning antenna array with a stable radiation pattern in a wide frequency range]. Voprosy spetsial’noj radioelektroniki: nauch.-tehn. sb. OVR. Vyp. 1 [Issues of special radio electronics: scientific-technical collection. OVR. Vol. 1], M.; Taganrog, 2014, pp. 77–80 [in Russian].

Copyright (c) 2019 Bobkov N., Gabriel’an D., Ivanov Y.

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

This website uses cookies

You consent to our cookies if you continue to use our website.

About Cookies