Suppresion of Log‐Periodic Dipole Antenna Spurious Radiation by Lumped Element Loading for Radioastronomical Application
Georgios Kyriakou,
Pietro Bolli,
Lorenzo Mezzadrelli
Abstract:Log‐Periodic Dipole Antennas have been known to provide good performance over large fractional bandwidths. However, optimized designs of log‐periodic antennas, in particular for radioastronomy and remote sensing, need to tackle the spurious radiation of secondary dipole harmonics that can compromise the gain smoothness and therefore the ability to detect natural spectral features emitted by the probed sources. A new, low‐cost method applicable also at a post‐design stage is proposed in this paper, which relies… Show more
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