1-Bit Reconfigurable Unit Cell for Ka-Band Transmitarrays

L. Di Palma (1) , A. Clemente (1) , L. Dussopt (1) , R. Sauleau (2) , P. Potier (3) , P 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 MRIS - DGA Mission Recherche et Innovation Scientifique

This letter presents an electronically reconfigurable, linearly polarized unit cell for transmitarray applications in Ka-band. A 1-bit phase resolution (namely with two phase states 0 ° and 180 °) is obtained using two p-i-n diodes mounted on a slot-loaded patch antenna. The design, realization, and experimental characterization in a standard waveguide simulator are reported. The measured insertion losses only reach 1.09 and 1.29 dB for the two-phase states, respectively, with a 3-dB transmission bandwidth of about 11.2%

Keywords: Antennas; Bandwidth; Beamforming; beam-steering; discrete lens; Frequency measurement; Insertion loss; Ka-band transmitarrays; linear polarized unit cell; microstrip antenna arrays; phase resolution; p-i-n diodes; Propagation losses; reconfigurable antenna; Scattering parameters; slot antenna arrays; slot-loaded patch antenna; standard waveguide simulator; transmitarray; Transmitting antennas

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

L. Di Palma, A. Clemente, L. Dussopt, R. Sauleau, P. Potier, et al.. 1-Bit Reconfigurable Unit Cell for Ka-Band Transmitarrays. IEEE Antennas and Wireless Propagation Letters, 2016, 15, pp.560--563. ⟨10.1109/LAWP.2015.2458179⟩. ⟨hal-01331292⟩