V.E. Drach - Ph. D. (Eng.), Associate Professor, Kaluga branch of the Bauman MSTU. E-mail: drach@kaluga.org A.V. Rodionov - Ph. D. (Eng.), Associate Professor, Kaluga branch of the Bauman MSTU. E-mail: andviro@gmail.com I.V. Chukhraev - Ph. D. (Eng.), Associate Professor, Kaluga branch of the Bauman MSTU. E-mail: igor.chukhraev@mail.ru D.A. Kuznetsova - Head `КБ, JSC «Typhoon» (Kaluga). E-mail: kda.taifun@gmail.com

Tapered slot Vivaldi antenna is the original design introduced by Peter Gibson in 1979. It-s basically a flared slot line, fabricated on a single metallization layer and supported by a substrate dielectric. The Design of tapered slot Vivaldi antenna is a trade-off between the antenna size and its bandwidth towards low frequency. Constructively, it is almost always formed out as printed conductors on a dielectric substrate. An antenna of this type is actually suitable for reception and transmission at any frequency, since all its elements are well scalable, and the use of foiled dielectric as a substrate makes it very attractive at frequencies above 1 GHz. Development and research of this type of antennas is an important task because, despite decades of research, currently there is no thorough understanding of the theory of their operation with electrodynamic point of view. De facto, the parameters of such devices are determined by electrodynamic simulation in specialized software, including the most popular CST Microwave Studio and HFSS. In this paper, the authors describe the simulation of the radiator, which is a tapered slot antenna, to be applied in an antenna array. The simulation was performed to investigate irradiation, using HFSS software (Ansys company). Radiation pattern diagrams, frequency dependence of the gain and the width of the radiation patterns were modeled. During this work, the simulation of antenna array, which is a block of 8×8 tapered slot radiators, allowed to determine the operating conditions of the system.

 

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