Title :
Circular array of wideband 3D Vivaldi antennas
Author :
Sarkis, R. ; Craeye, C.
Author_Institution :
Univ. Catholique de Louvain, Louvain-la-neuve, Belgium
Abstract :
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.
Keywords :
antenna feeds; baluns; broadband antennas; method of moments; slot antenna arrays; array scanning method; balun feeding; circular array; frequency response; method of moments; tapered-slot antennas; wideband 3D Vivaldi antenna array; wideband direction finding; Antenna arrays; Antenna radiation patterns; Arrays; Finite element methods; Moment methods;
Conference_Titel :
Electromagnetic Theory (EMTS), 2010 URSI International Symposium on
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-5155-5
Electronic_ISBN :
978-1-4244-5154-8
DOI :
10.1109/URSI-EMTS.2010.5637231
