%0 Conference Proceedings %T Linearly-polarized electronically reconfigurable transmitarray antenna with 2-bit phase resolution in Ka-band %+ Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI) %+ Institut d'Électronique et des Technologies du numéRique (IETR) %+ Université de Rennes 1 (UR1) %A Diaby, F. %A Clemente, A. %A Di Palma, L. %A Dussopt, L. %A Pham, K. %A Fourn, E. %A Sauleau, R. %< avec comité de lecture %B 19th International Conference on Electromagnetics in Advanced Applications, ICEAA 2017 %C Verona, Italy %8 2017-09-11 %D 2017 %R 10.1109/ICEAA.2017.8065510 %K Antenna arrays %K Antenna lobes %K Polarization %K Aperture efficiency %K Array architecture %K Dielectric substrates %K Electromagnetic simulation %K Full-wave simulations %K Linearly polarized %K Radiating elements %K Transmission phase %K Microwave antennas %Z Computer Science [cs]/Networking and Internet Architecture [cs.NI] %Z Engineering Sciences [physics]/ElectronicsConference papers %X This paper demonstrates the numerical results of a 196-element linearly-polarized electronically reconfigurable transmitarray in Ka-band. The proposed array architecture is based on a wideband and low-loss unit-cell with 2 bits of phase resolution (90°-step between two consecutive phase states). The unit-cell size (length × width × height) is equal to 5.1×5.1×1.3 mm3 and it is composed of six metal layers, three dielectric substrates and two bonding films. Four p-i-n diodes are soldered on the radiating elements in order to control the transmission phase. The full-wave simulations of the transmitarray are in agreement with the results predicted by using an ad-hoc simulation tool based on analytical model and electromagnetic simulations. The transmitarray antenna presents a maximum gain of 22.9 dBi, corresponding to an aperture efficiency of 32.3%, and a side-lobe level equal to -18.1 dB at 29 GHz. The computed 3-dB gain-bandwidth is larger than 15.9% around 29 GHz. © 2017 IEEE. %G English %L hal-01671561 %U https://hal-univ-rennes1.archives-ouvertes.fr/hal-01671561 %~ CEA %~ UNIV-NANTES %~ UNIV-RENNES1 %~ CNRS %~ INSA-RENNES %~ IETR %~ STATS-UR1 %~ CENTRALESUPELEC %~ DRT %~ UR1-HAL %~ UR1-MATH-STIC %~ UR1-UFR-ISTIC %~ IETR-BEAMS %~ IETR-ADH %~ TEST-UNIV-RENNES %~ LETI %~ TEST-UR-CSS %~ UNIV-RENNES %~ INSA-GROUPE %~ CEA-GRE %~ TEST-HALCNRS %~ UR1-MATH-NUM %~ IETR-SUMIT %~ IETR-SURFWAVE %~ NANTES-UNIVERSITE %~ UNIV-NANTES-AV2022