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Peculiarities of Time Domain Antenna Measurement Using Ultra-Short Pulses

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Abstract

This paper proposes a method for measuring the antenna radiation pattern (RP) with ultrashort pulses using the tower method at an open test site. It has been shown by experiments that the far-field boundary does not depend on the pulse duration if the bandwidth of exciting pulse exceeds that of antenna. When measuring in the interference zone, it is possible to separate the direct pulse and the pulse reflected from the underlying surface in time domain at any RP shape of the antennas used. The time window method makes it possible to exclude reflections from the ground and simulate the free space. The energy attenuation typical for the free space has been demonstrated when radiating at raised antennas and using a time window. In this case, there is no interference pattern typical for narrowband signals. It is shown that if the pulse reflected from the ground cannot be eliminated, the attenuation acquires the character of propagation along the underlying terrain. To demonstrate the use of the proposed technique, measurements of the horn antenna RP obtained by the pulse method are presented, and the results obtained are compared with the measurements in an anechoic chamber employing narrowband signals.

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Acknowledgments

The authors would like to express gratitude to Mrs. I.N. Chubukov and A.A. Shamardin for their assistance in management of measurements.

Funding

This study was carried out within the framework of the research program of the Russian Science Foundation (Project No. 21-19-00323).

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Authors and Affiliations

  1. Voronezh State University, Voronezh, Russia

    Anatoliy M. Bobreshov, Stanislav E. Neskorodov & Grigoriy K. Uskov

  2. JSC “Concern “Sozvezdie”, Voronezh, Russia

    Stanislav E. Neskorodov

Authors
  1. Anatoliy M. Bobreshov
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  2. Stanislav E. Neskorodov
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  3. Grigoriy K. Uskov
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Correspondence to Anatoliy M. Bobreshov.

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ADDITIONAL INFORMATION

A. M. Bobreshov, S. E. Neskorodov, and G. K. Uskov

The authors declare that they have no conflicts of interest.

This article does not contain any studies with human participants or animals performed by any of the authors.

The initial version of this paper in Russian is published in the journal “Izvestiya Vysshikh Uchebnykh Zavedenii. Radioelektronika,” ISSN 2307-6011 (Online), ISSN 0021-3470 (Print) on the link http://radio.kpi.ua/article/view/S0021347022010022 with DOI: https://doi.org/10.20535/S0021347022010022

Additional information

Translated from Izvestiya Vysshikh Uchebnykh Zavedenii. Radioelektronika, No. 1, pp. 16-22, January, 2022 https://doi.org/10.20535/S0021347022010022 .

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Bobreshov, A.M., Neskorodov, S.E. & Uskov, G.K. Peculiarities of Time Domain Antenna Measurement Using Ultra-Short Pulses. Radioelectron.Commun.Syst. 65, 11–17 (2022). https://doi.org/10.3103/S0735272722010022

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  • DOI: https://doi.org/10.3103/S0735272722010022

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