Ultra-Wideband Antipodal Vivaldi Antenna Array With Wilkinson Power Divider Feeding Network
M. Strackx, K. Janssen, E. D’Agostino, G. A. E. Vandenbosch, P. Reynaert, P. Leroux
IEEE International Conference on Ultra-Wideband (ICUWB), 2011
1 - 4
Vivaldi antenna array, Wilkinson power divider, ultra-wideband (UWB)
In this paper, a two element antipodal Vivaldi antenna array in combination with an ultra-wideband (UWB) Wilkinson power divider feeding network is presented. The antennas are placed in a stacked configuration to provide more gain and to limit cross talk between transmit and receive antennas in radar applications. Each part can be realized with standard planar technology. For a single antenna element, a comparison in performance is done between standard FR4 and a Rogers® RO3003 substrate. The antenna spacing is obtained using the parametric optimizer of CST MWS®. The performance of the power divider and the antenna array is analyzed by means of simulations and measurements.
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