Impact of the Ground Plane Topology on the Performances of a Pyramidal Multiband Quadri-Element Antenna

Baptiste Palacin (1) , Nelson Fonseca (1) , Sami Hebib (2) , Hervé Aubert (2)

1 CNES - Centre National d'Études Spatiales [Toulouse]
2 LAAS-MINC - Équipe MIcro et Nanosystèmes pour les Communications sans fil

This paper presents investigations performed on the ground plane topology of a pyramidal multiband quadri-element antenna recently introduced mainly for radio navigation applications. The analyses led to a new topology of ground plane that reduces the overall height of the antenna without affecting the electrical performances of the antenna, mainly input matching and radiation patterns. A solution with flat ground plane is also investigated for applications requiring further compactness. Simulations results are presented for the different considered design assuming a frequency plan including radio navigation frequency bands (L1/L5) as well as satellite telemetry frequency band (S-band). Only the lower frequency band is considered as it is the one mostly affected by the ground plane topology.

Domaines: Electromagnétisme

Baptiste Palacin, Nelson Fonseca, Sami Hebib, Hervé Aubert. Impact of the Ground Plane Topology on the Performances of a Pyramidal Multiband Quadri-Element Antenna. The 4th European Conference on Antennas and Propagation (EuCAP), Apr 2010, Barcelone, Spain. pp. 1-4. ⟨hal-00465059⟩