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Wideband 400-element electronically reconfigurable transmitarray in X band

Author

Listed:
  • Antonio Clemente

    (CEA-LETI - Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information - DRT (CEA) - Direction de Recherche Technologique (CEA) - CEA - Commissariat à l'énergie atomique et aux énergies alternatives)

  • Laurent Dussopt

    (CEA-LETI - Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information - DRT (CEA) - Direction de Recherche Technologique (CEA) - CEA - Commissariat à l'énergie atomique et aux énergies alternatives)

  • Ronan Sauleau

    (IETR - Institut d'Électronique et des Technologies du numéRique - UR - Université de Rennes - INSA Rennes - Institut National des Sciences Appliquées - Rennes - INSA - Institut National des Sciences Appliquées - CentraleSupélec - CNRS - Centre National de la Recherche Scientifique - Nantes Université - pôle Sciences et technologie - Nantes Univ - Nantes Université)

  • Potier Patrick

    (DGA - Délégation générale de l'armement - Ministère de la Défense)

  • Philippe Pouliguen

    (DGA - Direction générale de l'armement [Bagneux])

Abstract

A fully electronically reconfigurable 400-element transmitarray is studied numerically and experimentally in Xband. The array operates in linear polarization and consists of 20×20 unit-cells. A 1-bit phase resolution has been selected for the unit-cell in order to reduce the complexity of the biasing network and steering logic, the insertion loss and the overall cost of the antenna system. The unit-cell stack-up is simple and is made of four metal layers: active side, biasing lines, ground plane and passive side. Two p-in diodes are integrated on the active side of each cell in order to control its transmission phase. The active array contains 800 diodes in total. It demonstrates experimentally pencil beam scanning over a 140×80-degree window over a 15.8% fractional bandwidth, with a maximum gain of 22.7 dBi at broadside. We also show that the same antenna array can be used for beam shaping applications (flattop beam). The experimental results presented between 8 and 12 GHz are in good agreement with the theoretical performance calculated using full-wave electromagnetic simulations and an inhouse CAD tool based on analytical modeling.

Suggested Citation

  • Antonio Clemente & Laurent Dussopt & Ronan Sauleau & Potier Patrick & Philippe Pouliguen, 2013. "Wideband 400-element electronically reconfigurable transmitarray in X band," Post-Print cea-03637145, HAL.
    • Handle: RePEc:hal:journl:cea-03637145
    DOI: 10.1109/TAP.2013.2271493
    Note: View the original document on HAL open archive server: https://cea.hal.science/cea-03637145
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