"JOURNAL OF RADIO ELECTRONICS" (Zhurnal Radioelektroniki ISSN 1684-1719, N 9, 2018

contents of issue      DOI  10.30898/1684-1719.2018.9.12     full text in Russian (pdf)  

Wideband polyconic antenna with magnetic radar absorbing material


V .N. Semenenko1, K. M. Baskov 1, D. I. Akimov1, A. A. Politiko1, V. A. Chistyaev1, N. I. Bobkov2

1Institute for Theoretical and Applied Electromagnetics of the Russian Academy of Sciences, Izhorskaya 13, Moscow, 125412, Russia
Joint-stock company «All-Russian scientific research Institute «Gradient», Prospect Sokolova 96, Rostov-on-Don, 344010, Russia


The paper is received on August 8, 2018, after correction - on September 3, 2018


Abstract. The research of ultra-broadband emitters is of great importance due to the development of ultra-broadband radio communication and radio monitoring systems. One of the most common ultra-broadband antennas is a biconical vibration antenna. The paper deals with the investigation of polyconic vibration antenna mounted on the metallic rod holder. Primary numerical simulations showed that the metallic rod holder has a strong influence on the antenna radiation pattern at the working frequency band from 250 to 1000 MHz. It was proposed to apply to the metallic rod holder a layer of radar absorbing material (RAM), which filled with coarse-grained magnetic soft powder, with high magnetic losses in the range of meter and decimeter wavelengths. It was shown that the application of new RAM decreases the level of electric current on the metallic rod holder that leads to improvement of antenna characteristics. The research of the polyconic antenna was performed for the configurations when a single-layer and a two-layer RAMs are applied. The single-layer RAM consists of the only coarse-grained magnetic soft powder RAM and the two-layer RAM consists of the coarse-grained magnetic soft powder RAM as well as a traditional magnetic RAM based on modified carbonyl iron powder. The antenna characteristics was optimized by the calculation of thicknesses of the layers using the computational electromagnetics software FEKO. The optimization has been reached using both the single-layer RAM of 5 mm and the two-layer RAM of 10 mm, where the thickness of the first layer of coarse-grained magnetic soft powder RAM is 4,5 mm, the second layer of modified carbonyl iron powder RAM is 5,5 mm. Also the application of RAMs allows us to decrease standing wave ratio of the polyconic antenna that extends the working frequency band.

Key words: polyconic antenna, broadband antenna, radiation-absorbent material, radiation pattern, standing wave ratio.


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For citation:
V. N. Semenenko, K.M. Baskov, D.I. Akimov, A.A. Politiko, V.A. Chistyaev, N.I. Bobkov. Wideband polyconic antenna with magnetic radar absorbing material. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2018. No. 9. Available at http://jre.cplire.ru/jre/sep18/12/text.pdf

DOI  10.30898/1684-1719.2018.9.12