Low Scan Loss Bifocal Ka-band Transparent Transmitarray Antenna

Guang Liu (1) , Eduardo Motta Cruz (1) , Trung Kien Pham (1) , David Gonzalez-Ovejero (1) , Ronan Sauleau (1)

1 IETR - Institut d'Électronique et des Technologies du numéRique

A new bifocal design of transparent transmitarray antenna (TTA) is proposed to reach low scan loss at Ka-band (27.5 - 29.5 GHz), using meshed metal unit-cells and transparent substrates (polymethylmethacrylate, PMMA) to allow total integration in dense urban environment. Thanks to the excellent performance of the meshed double-circle rings unit-cell under oblique incidence, wide field of view (+/- 30 degrees) with low scanning loss (lower than 0.53 dB) and low side lobe level (below -17.7 dB) are obtained by moving the feed along the focal plane of the TTA.

Keywords: scan loss; bifocal; transparent transmitarray antenna

Domains: Engineering Sciences [physics]

Guang Liu, Eduardo Motta Cruz, Trung Kien Pham, David Gonzalez-Ovejero, Ronan Sauleau. Low Scan Loss Bifocal Ka-band Transparent Transmitarray Antenna. IEEE-Antennas-and-Propagation-Society International Symposium on Antennas and Propagation / USNC/URSI National Radio Science Meeting, Jul 2018, Boston, MA, United States. ⟨10.1109/apusncursinrsm.2018.8609274⟩. ⟨hal-02083905⟩