Characterization of Dual-Band Dual-Linearly Polarized Transmitarray Antennas

Kien Pham (1) , Ronan Sauleau (1) , Erwan Fourn (1) , Fatimata Diaby (2) , Antonio Clemente (2, 3) , Laurent Dussopt (2, 3)

1 IETR - Institut d'Électronique et des Technologies du numéRique
2 CEA-LETI - Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information
3 UGA [2016-2019] - Université Grenoble Alpes [2016-2019]

Experimental results of dual-band transmitarray antennas operating in linear polarization are reported in this paper. The transmitarrays operate in both down-link and up-link for K/Ka-band satellite applications using orthogonal polarizations in each frequency band. The dual-band capability is obtained by interleaving two arrays of single-band unit-cells based on narrow patches and metalized via. Different prototypes are fabricated and measured to validate the performance in each band. A good agreement between theory and measurement is observed. The measured gain reaches 28.4 and 27 dBi at 29.6 GHz and 20 GHz respectively. At up-link, the -3-dB bandwidth is more than 11% around 29 GHz.

Mots clés: Transmitarray antenna; dual-band; dual-polarization; K-band; Ka-band; discrete lens antenna; SATCOM antennas

Domaines: Réseaux et télécommunications [cs.NI]; Electronique

Kien Pham, Ronan Sauleau, Erwan Fourn, Fatimata Diaby, Antonio Clemente, et al.. Characterization of Dual-Band Dual-Linearly Polarized Transmitarray Antennas. 47th European Microwave Conference (EuMC), Oct 2017, Nuremberg, Germany. ⟨10.23919/EuMC.2017.8230814⟩. ⟨hal-01770201⟩