"JOURNAL OF RADIO ELECTRONICS" (Zhurnal Radioelektroniki ISSN 1684-1719, N 1, 2018

contents of issue       DOI  10.30898/1684-1719-2018-1-7      full text in Russian (pdf)   

Concaved semitransparent screen for cutoff of the far fields in the shadow domain


D. V. Tatarnikov1,2, A. A. Generalov1,2,3

1Topcon Positioning Systems, Derbenevskaya embarkment 7-22, Moscow 115114, Russia

2Moscow Aviation Institute, Volokolamskoe 4, Moscow 125993, Russia

3Institute of Control Sciences of Russian Academy of Sciences (ICS RAS), Profsoyuznaya 65, Moscow 117997, Russia


 The paper is received on January 22, 2018


Abstract. Concaved semi-transparent screen forming a sharp drop (cut-off) of the source radiation pattern when crossing the border shadow area is discussed.

The problem is of interest for problems of the antennas back lobes suppression, including antenna arrays. It is connected with the improving of the electromagnetic compatibility and the reduction of  the multipath errors. The review is made in comparison with the problem of forming a cut-off pattern in the case of a flat semi-transparent screen. Approach for the synthesis of impedance in the geometrical optics approximation is developed; the distribution of the impedance becomes purely resistive. Numerical evaluation of the limits of applicability of the proposed approach is carried out. Beyond the applicability of the approximation of geometrical optics, the synthesis optimization procedure is developed; the impedance becomes complex with nonnegative real part. Numerical estimates, including the impact of the frequency dependence of the impedance distribution on the cutoff value are discussed. It is shown that the main constraint factor for achieving the cut-off pattern is the screen size.

Key words: diffraction by the semi-transparent screen, shadow domain, cut-off pattern.


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For citation:
D. V. Tatarnikov, A. A. Generalov. Concaved semitransparent screen for cutoff of the far fields in the shadow domain. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2018. No. 1. Available at http://jre.cplire.ru/jre/jan18/7/text.pdf.
DOI  10.30898/1684-1719-2018-1-7