Optimized Polarization for Rotationally Tiled, Wideband, Dual-Polarized Vivaldi Arrays

Autor: Elizabeth Bekker, Johan Joubert, Johann W. Odendaal
Rok vydání: 2020
Předmět:
Zdroj: 2020 14th European Conference on Antennas and Propagation (EuCAP).
DOI: 10.23919/eucap48036.2020.9135302
Popis: Grating lobe mitigation was achieved for planar, wideband dual-polarized Vivaldi arrays through the rotation and translation of equilateral pentagonally shaped subarrays that form an approximately circular array. The subarray outlines can be adjusted in order to included fewer elements per subarray, but this will result in less grating lobe reduction. By using dual-polarized elements optimized polarization in the main beam can be achieved. The array patterns were determined with both measured and simulated single element patterns of the dual-polarized Vivaldi element. The mutual coupling between the elements in the array was shown to be negligible.
Databáze: OpenAIRE