Simulation and Experimental Study of a Linear Bifocal Antenna Array

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Abstract

A leaky-wave bifocal linear array focused in the Fresnel zone is considered. The structural parameters provide perfect focusing of the field at two points corresponding to two different frequencies. An approximate theory of antenna arrays is used to analyze the bifocal array, to study the shape of the frequency scanning arc, and to determine the field distribution in the focal spot. An electrodynamic simulation is performed for a strip array with slotted radiators. The scattering parameters of the array and its radiation characteristics
are presented. The design features of a strip antenna that suppress the effect of normal are discussed. The results of an experimental study of a strip bifocal array are presented. The possibility of implementation of a symmetrical scanning arc and a relatively low level of optical aberrations is shown.

About the authors

S. E. Bankov

Kotel’nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences

Email: sbankov@yandex.ru
Moscow, 125009 Russia

E. V. Frolova

Kotel’nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences

Email: sbankov@yandex.ru
Moscow, 125009 Russia

V. I. Kalinichev

Kotel’nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences

Author for correspondence.
Email: sbankov@yandex.ru
Moscow, 125009 Russia

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