A. V. Ashikhmin – Dr.Sc. (Eng.), Professor, Director of the Voronezh branch of IRCOS JSC;

Leading Engineer of IRCOS JSC (Moscow)

E-mail: ashihminav@ircoc.vrn.ru

K. A. Bykov – Post-graduate student, Voronezh State Technical University (Voronezh)

E-mail: bykov.konst.al@mail.ru

Yu. G. Pasternak – Dr.Sc. (Eng.), Professor of Radio Electronic Devices and Systems Department of Voronezh State

Technical University (Voronezh)

E-mail: pasternakyg@mail.ru

P. V. Pershin – Post-graduate student, Voronezh State Technical University (Voronezh, Leading Engineer of IRCOS JSC

(Moscow)

E-mail: pershinpv@ircoc.vrn.ru

Yu. A. Rembovsky – Dr.Sc. (Eng.), Leading Research Scientist of IRCOS JSC (Moscow)

E-mail: yu.rembovsky@ircoc.vrn.ru

The paper presents an implementation variant of a multibeam linear antenna array with a controlled radiation pattern and a beamforming device on Rotman printed lens. The antenna array consists of symmetrical printed ultra-wideband vibrators with shoulders in the form of circle halves, with reflectors and directors, powered by stripline transformers. To ensure matching in a wide frequency band, a two-dimensional periodic array of electrically short metal strips (metamaterial coating) has been used This array is located between the active vibrator and the reflector. The results of electrodynamic modeling of the main parameters of the single vibrator and the antenna array by the Weiland method have been given. The operability of the antenna array by the criterion of the level of the standing wave ratio in the feeder line no more than 2 is provided in the ultra-wide frequency band from 8 GHz to 18 GHz in the sector of scanning angles ±45 degrees. The variant of constructing an antenna system with two-coordinate switching scanning in a sector of 9090 degrees with the overlap coefficient in frequency of more than 2 has been proposed.

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