Wideband linearly polarized transmitarray antenna for 60 GHz backhauling

Cyril Jouanlanne (1) , Antonio Clemente (1) , Mathieu Huchard (2) , Julien Keignart (1) , Cyril Barbier (2) , Thierry Le Nadan (2) , Laurent Petit (2)

1 CEA-LETI - Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information
2 Radiall - Radiall Voreppe

This communication presents the design of a linearly-polarized transmitarray antenna for backhauling applications at V-band (57-66 GHz). The antenna is composed of a planar circular-shape array with 1264 unit-cells printed on a three-metal layer standard PCB, an ad-hoc focal source, and a radome layer. A 3-bit phase resolution has been selected to achieve a gain higher than 31 dBi over the whole unlicensed 60 GHz-band and low side lobe levels. The presence of the radome near the array is taken into account in the unit-cell design. Experimental results are in line with the theoretical ones provided by an in-house CAD tool based on analytical model and electromagnetic simulations. The proposed design presents a measured broadside gain of 32.5 dBi at 61.5 GHz with an aperture efficiency of 42.7% and a wide 1-dB gain bandwidth of 15.4% (57-66.5 GHz).

Keywords: Transmitarray antenna; flat lens; discrete lens; backhauling; point-to-point communications; 5G; millimetre wave

Domains: Engineering Sciences [physics]

Cyril Jouanlanne, Antonio Clemente, Mathieu Huchard, Julien Keignart, Cyril Barbier, et al.. Wideband linearly polarized transmitarray antenna for 60 GHz backhauling. IEEE Transactions on Antennas and Propagation, 2017, 65 (3), pp.1440 - 1445. ⟨10.1109/TAP.2017.2655018⟩. ⟨cea-03637128⟩