2010 · 31 citations · 11 references
EngineeringElectrical EngineeringAntennasMicrowave EngineeringUltrasonographyAntenna ArraysAntenna DesignAntenna SimulationBroadband AntennasMicrowave AntennasPlanar AntennasAntenna Array GeometryArray DesignBroadband Antenna DesignCircular ArraysPolarimetric CalibrationPolarimetric SensitivityVivaldi AntennasWideband Array Design
This communication presents a novel 3D Vivaldi antenna array with 4:1 bandwidth without the need for balun feeding. A circular array of 8 elements of this 3D Vivaldi antenna is simulated using the Array Scanning Method applied to Method of Moments. It is found that connecting the antennas provides a smoother frequency response. The array is well suited for wideband direction finding with good polarimetric sensitivity. Its calibration made easy by the circular symmetry of the structure.
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