Modelling of broadband 1-18 GHz antipodal dual-polarized Vivaldi radiators for antenna array

Four models of 1 – 18 GHz antipodal Vivaldi radiators with dual orthogonal polarizations as part of the infinite antenna array (AA) are considered. The models have antipodal location of printed conductors on two sides of a substrate in tapered slot part of the antenna; elliptic resonators and a symm...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 67; no. 1; p. 12001
Main Authors Yukhanov, Y V, Semenikhin, A I, Semenikhina, D V, Privalova, T Y
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.01.2014
Subjects
Absorbers
Antenna arrays
Antennas
Broadband
Channels
Conductors
Dual polarization (waves)
Radiators
Rectangular plates
Rods
Substrates
Symmetry
Unit cell
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Summary:Four models of 1 – 18 GHz antipodal Vivaldi radiators with dual orthogonal polarizations as part of the infinite antenna array (AA) are considered. The models have antipodal location of printed conductors on two sides of a substrate in tapered slot part of the antenna; elliptic resonators and a symmetry plane passing through a diagonal of Floquet's unit cell. For VSWR lowering and improvement of isolation of orthogonal channels at resonance frequencies the models can contain the rectangular plates or rods of an absorber. The best model of the radiator AA with long absorber rods has VSWR not higher than 2.55 and an isolation of orthogonal channels more than 19 dB.
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ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/67/1/012001