Influence of the Low-Scattering, Low-Band Dipole on the Co-Existing High-Band Array

This paper presents a recent progress in how influence of low-scattering, low-band antennas can be evaluated for high-band phased arrays. Measured results of a virtually steered phased array are presented in three cases: the array without a disturbance, and the array obstructed by a low-scattering dipole and a reference half-wave dipole. The measurement setup is modeled after an identification-friend-or-foe (IFF) system in an aircraft radar. The measured results of the array show that the low-scattering dipole causes on average 17.2dB less disturbance in the far-field response than the reference dipole. The disturbance caused by the reference dipole will limit the obtainable minimum side-lobe level when non-uniform array excitation schemes are used, while the low-scattering dipole does not cause any deterioration in the studied Chebyshev-excitation scheme.

Keywords

Antenna measurements, Atmospheric modeling, Chebyshev approximation, Dipole antennas, Europe, Phase measurement, Phased arrays, Radar antennas, Radar measurements, Radar scattering

DOI

10.23919/EuRAD61604.2024.10734864

Citation

Leino, M K, Ala-Laurinaho, J, Höök, A, Svensson, B & Viikari, V 2024, Influence of the Low-Scattering, Low-Band Dipole on the Co-Existing High-Band Array . in 2024 21st European Radar Conference, EuRAD 2024 ., 10734864, IEEE, pp. 413-416, European Radar Conference, Paris, France, 22/09/2024 . https://doi.org/10.23919/EuRAD61604.2024.10734864

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https://urn.fi/URN:NBN:fi:aalto-202412177867

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[article-cris] Sähkötekniikan korkeakoulu / ELEC

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Influence of the Low-Scattering, Low-Band Dipole on the Co-Existing High-Band Array

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