LHCP/RHCP Reconfigurable Transmitarray in Ka-Band

Luca Di Palma (1) , Antonio Clemente (1) , Laurent Dussopt (1) , Ronan Sauleau (2) , Patrick Potier (3) , Phillipe 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.MI - DGA Maîtrise de l'information

In this contribution, we propose the design of a circularly-polarized reconfigurable transmitarray based on a 1-bit unit-cell (i.e. with two phase states, 0 degrees and 180 degrees) operating in linear polarization. Applying the sequential rotation technique, the possibility to switch between the two circular (LHCP/RHCP) polarizations will be presented. The numerical results obtained for a 400-element transmitarray radiating at broadside show a maximum gain of 20.3 dBi at 29 GHz with a cross polarization discrimination better than 30 dB. The -3dB bandwidth in gain reaches 14%

Domains: Engineering Sciences [physics]; Electronics; Computer Science [cs]; Networking and Internet Architecture [cs.NI]

Luca Di Palma, Antonio Clemente, Laurent Dussopt, Ronan Sauleau, Patrick Potier, et al.. LHCP/RHCP Reconfigurable Transmitarray in Ka-Band. 2015 IEEE International Symposium on Antennas and Propagation & Usnc/Ursi National Radio Science Meeting, Vancouver, Jul 2015, 2015, Vancouver, Canada. pp.2219--2220. ⟨hal-01300976⟩