Focal distance reduction of transmit-array antennas using multiple feeds

Antonio Clemente (1) , Laurent Dussopt (1) , R Sauleau (2) , Potier Patrick (3) , Philippe Pouliguen (3)

1 CEA-LETI - Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information
2 IETR - Institut d'Électronique et des Technologies du numéRique
3 DGA - Délégation générale de l'armement

The reduction of the focal distance of transmit-array antennas using multiple feeds is investigated theoretically and through full-wave simulations. A theoretical model of multiplefeed transmit-arrays is derived using analytic formulas; it shows that the focal distance can be divided by a factor of two using a quadruple-feed configuration. The theoretical results are validated through full-wave simulations for two transmit-arrays operating in the 60-GHz band.

Keywords: Transmit-array antenna; discrete lens; array lens; multi-feed antenna

Domains: Engineering Sciences [physics]

Antonio Clemente, Laurent Dussopt, R Sauleau, Potier Patrick, Philippe Pouliguen. Focal distance reduction of transmit-array antennas using multiple feeds. IEEE Antennas and Wireless Propagation Letters, 2012, 11, pp.1311-1314. ⟨10.1109/LAWP.2012.2227105⟩. ⟨cea-03637140⟩