High-gain wideband and superdirective electronically-beam-switchable antenna for smart communication objects

Lotfi Batel (1, 2) , Antonio Clemente (1, 2) , Christophe Delaveaud (1, 2)

1 CEA-LETI - Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information
2 UGA - Université Grenoble Alpes

This paper proposes the design of a high-gain, wideband, directive, and compact circular array composed of 5 symmetrical radiating elements (1 fed and 4 parasitic elements). The possibility to implement an electronically beam-switching capability over the horizontal plane is studied. Thanks to the superdirectivity principle, the proposed closely spaced parasitic antenna array achieves a maximum gain of 10 dBi steered in four directions on the horizontal plane and a minimum gain of 9 dBi in the whole horizontal plane. The proposed antenna achieves a stable gain > 9dBi in the frequency band 758-803 MHz, which is interesting for sub-GHz 5G applications.

Mots clés: Beam-steering; beam-switching; electrically small antennas; superdirectivity; parasitic arrays

Domaines: Sciences de l'ingénieur [physics]

Lotfi Batel, Antonio Clemente, Christophe Delaveaud. High-gain wideband and superdirective electronically-beam-switchable antenna for smart communication objects. EuCAP 2022 - The 16th European Conference on Antennas and Propagation, Mar 2022, Madrid, Spain. ⟨cea-03637077⟩