The antenna array with ring elements

Shcherbyna, Olga; Ilnitskyi, Ludvig; Mykhalchuk, Inna; Kozhokhina, Olena

doi:10.1109/sps.2017.8053700

Cited by 3 publications

(2 citation statements)

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“…From the above formulas ( 21) and ( 22), ( 20) and ( 23) it can be seen that the calculation of the inclination angle γ of the polarization ellipse in linear orthogonal polarization basis is not much more complicated than in circular basis. But the ellipticity coefficient (23) has a much more complex dependence on the measured quantities than in formula (20).…”

Section: Calculation Of Measurement Errors Of Polarization Characteri...mentioning

confidence: 99%

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Comparison of Circular and Linear Orthogonal Polarization Bases in Electromagnetic Field Parameters Measurement

Ilnitsky¹,

Shcherbyna²,

Yanovsky³

et al. 2022

IJIGSP

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This article considers the peculiarities of using circular orthogonal polarization basis for measuring the parameters of an electromagnetic wave. In particular, the angle of inclination of the major axis of the polarization ellipse and the ellipticity coefficient are among measuring parameters. The main expressions for calculation of field parameters in circular and linear orthogonal polarization basis are developed and analyzed. The advantages of using the ring as a measuring antenna in comparison with symmetrical vibrators of the turnstile antenna are substantiated. The expressions obtained in the article for calculating the measurement errors of polarization parameters in a linear orthogonal polarization basis illustrate the multifactorial dependence of the measurement accuracy on the angular and amplitude parameters. In contrast to the linear polarization basis, in case of circular basis, the inclination angle of the polarization ellipse axis can be found by direct measurements of the phase shift, and the accuracy of measuring the ellipticity coefficient is affected only by the error of measuring the ratio of voltage amplitudes, which are proportional to the modules of the field strength vectors of the left and right directions of the circular polarization rotation. This provides better potential accuracy of measurement for the electromagnetic wave parameters when using circular polarization antennas and, correspondingly, more reasonable analysis in the circular orthogonal polarization basis.

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Section: Calculation Of Measurement Errors Of Polarization Characteri...mentioning

confidence: 99%

“…A simple ring antenna makes it possible to get rid of these two disadvantages [20]. Since the conductors of the ring are in the same plane, it equally receives or radiates waves with the right rotation direction and waves with the left rotation direction.…”

Section: Calculation Of Measurement Errors Of Polarization Characteri...mentioning

confidence: 99%