%0 Journal Article %T High-gain D-band transmitarrays in standard PCB technology for beyond-5G communications %+ Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI) %+ Université Grenoble Alpes (UGA) %A Manzillo, Francesco %A Clemente, Antonio %A Luis González-Jiménez, José %< avec comité de lecture %@ 0018-926X %J IEEE Transactions on Antennas and Propagation %I Institute of Electrical and Electronics Engineers %V 68 %N 1 %P 587 - 592 %8 2020 %D 2020 %R 10.1109/TAP.2019.2938630 %K millimeter-wave antennas %K transmitarray %K discrete lens %Z Engineering Sciences [physics]Journal articles %X We present novel three-layer D-band linearly-polarized transmitarrays entirely fabricated using standard printed circuit board (PCB) processes. Three flat lenses comprising 1600 elements are designed to generate broadside and scanned beams. All lenses are synthesized using 8 unit cells (3-bit phase quantization). The combination of cells comprising probe-fed and aperture-coupled patches is proposed to overcome the design challenges due to technological constraints and achieve a wideband operation. The minimum design feature is 80 µm. The trade-offs in the design of the feed illumination are analyzed using adhoc numerical tools. A 10-dBi horn is eventually selected as source. The focal-to-diameter (F/D) ratio is 0.75 for all lenses. The broadside array attains a peak gain of 33.0 dBi and a-1-dB relative gain bandwidth of 11.7%, i.e. wider than that of state-of-the-art designs, in the 100-300-GHz band, which use more complex technologies and larger focal distances. The performance of the proposed antenna technology demonstrates its potential for low-cost high-capacity wireless backhauls beyond 100 GHz. %G English %2 https://cea.hal.science/cea-03637121/document %2 https://cea.hal.science/cea-03637121/file/TAP_2019_140GHz.pdf %L cea-03637121 %U https://cea.hal.science/cea-03637121 %~ CEA %~ UGA %~ DSV %~ DRT %~ CEA-DRF %~ LETI %~ CEA-GRE %~ UGA-EPE