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

contents of issue      DOI  10.30898/1684-1719-2018-1-9       full text in Russian (pdf)   



A. V. Nikitenko,  A. S. Zubov

Institute for Theoretical and Applied Electromagnetics of the Russian Academy of Sciences, Izhorskaya 13, Moscow 125412, Russia


 The paper is received on December 15, 2017, after correction - on January 20, 2018


Abstract. Several issues concerning diffraction from pyramidal radio absorber that covers walls of a compact range are considered in this paper. In particular, differences in convergence and localization of higher order diffraction fields are demonstrated in comparison with those scattered on the back wall. In the case of the diffraction from the back wall, the incidence is almost normal to the wall, thus zero-order field is significantly lower than higher-order reflected harmonics (-70 dB compared to -30 dB). In the case of the back wall, the angle of incidence can be very close to even 90 degrees, thus zero-order harmonic’s amplitude becomes higher than amplitudes of high diffraction orders (-20 dB compared to -35 dB). However, the distribution of these fields in compact range’s space is different: there are regions in which amplitudes of high diffraction orders are bigger than the amplitude of zero-order diffraction. In this paper we develop a method of calculating zero order and higher order diffraction from the side walls of a compact range. Convergence of the algorithm is studied; recommendations on parameters of the calculation, such as size of the grid are given. Higher order harmonic’s amplitude distribution is calculated and studied. We show that the values of the higher orders can reach -35 dB and even higher. Considering the fact that single-periodic radio-absorbers, for example wedge-shaped absorbers scatter significantly less higher orders, one can use algorithms from this study for more accurate compact range design and choice of absorber in particular.

Key words: 3D RCWA, radio-absorbing material, anechoic chamber, compact range.


1. Hemming L.H. Electromagnetic Anechoic Chambers: A Fundamental Design and Specification Guide. Wiley-IEEE Press, July 2002, 248 p.

2. Emerson W. H. Electromagnetic wave absorbers and anechoic chambers through the years.  IEEE Transactions on Antennas and Propagation, 484–490, July 1973.

3. Balabukha N.P., Zubov A.S., Solosin V.S. Kompaktnye polygony dlya izmerenya harakteristik rasseyaniya. [Compact ranges for measures of scatter characteristics]. Moscow, Nauka Publ., 2007, 266 p. (in Russian)

4. Mazanek M., Klepal K., Pechac P. Electromagnetic Field in Anechoic and EMC Chambers – Part 1 – Modelling.  Radioengineering ,Vol. 9, No. 1, April 2000.

5. Kuester E. F., Holloway C. L. Improved low-frequency performance of pyramid-cone absorbers for application in semi-anechoic chambers.   Proc. 1989 IEEE Int. Symp. EMC,  pp.394 -398, 1989.

6. S. P. Skobelev and O. N. Smolnikova, "Analysis of Doubly Periodic Inhomogeneous Dielectric Structures by a Hybrid Projective Method," IEEE Transactions on Antennas and Propagation, Vol. 61, No. 10, Oct. 2013, pp. 5078-5087.

7. Moraham M.G., Grann E.B., Pommet D.A., Gaylord T.K. Formulation for stable and efficient implementation of the rigorous coupled-wave analysis of binary gratings.  J. Opt. Soc. Am. A 12, 1068-1076 (1995).

8. Nikitenko A.V., Zubov A.S., Bogolyubov A.N. Numerical modeling of diffraction of electro-magnetic field on radio-absorbing material inside the compact range. Zhurnal Radioelektroniki - Journal of Radio Electronics, 2015, No. 11. Available at http://jre.cplire.ru/mac/nov15/11/text.pdf (In Russian)

9. Shestopalov V.P., Litvinenko L.N., Masalov S.A., Sologub V.G. Difraktsiya voln na reshetkah. [Diffraction of waves on gratings]. Kharkov, Kharkov Univ. Publ., 1973, 288 p. (in Russian)

10. Nikitenko A.V., Zubov A.S., Bylichev E.V.  3D-RCWA algorithm implementation in calculating diffraction from radio-absorbing material. Zhurnal Radioelektroniki - Journal of Radio Electronics, 2014, No. 12. Available at http://jre.cplire.ru/jre/dec14/15/text.pdf (In Russian)


For citation:
A. V. Nikitenko,  A. S. Zubov. Numerical modelling of diffraction of electromagnetic field on pyramidal radio-absorber on the side walls of the compact range. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2018. No. 1. Available at http://jre.cplire.ru/jre/jan18/8/text.pdf.

DOI  10.30898/1684-1719-2018-1-9