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Research of minimizing problem of antenna Vivaldi overall dimensions for using as planar array element

Keywords:

A. B. Tsay – Leading Engineer, JSC “Concern “Morinformsystem-AGAT” E-mail: a.b.t.say@gmail.com A. S. Godin – Engineer, JSC “Lianozovo Electromechanical Plant” K. N. Klimov – Dr.Sc. (Eng.), Leading Research Scientist, JSC “Lianozovo Electromechanical Plant”


The task of minimization of overall dimensions of a dual-band antenna built on exponential tapered slotline for using as a radiating element within array was researched. A 3D-model of a broadband antenna in the electrodynamic package Ansoft HFSS v.12 was built. The frequency response of VSWR was calculated and the gain in two planes was realized. Constructing of the antenna Vivaldi was analyzed. Two variations of antennas integrated into the construction of a planar array were calculated based on the analysis. Heights of present antennas are approximated to quarter of wavelength at the lower boundary of frequency band. Improvement of rectangle characteristic of direction pattern of a radiation element and VSWR in the presented frequency band was yielded.
References:

 

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May 29, 2020

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