SLIDE 6 | 6
High gain antennas with electronically beam steering capabilities at 28 GHz
- Analogue beamforming solution based on flat-
lens or transmitarray antennas,
- Flat-lens illulinated by a focal source antenna
integrated on the RF transceiver,
- Phase-shift function on the flet-lens by using p-i-n
diodes,
- Previosus proof-of-concept at CEA at 10 and 28
GHz.
5G CHAMPION Developed Technologies: 28GHz High gain Antennas
Transmitarray at Ka-band
- L. Di Palma, A. Clemente, L. Dussopt, R. Sauleau, P.
Potier, and P. Pouliguen, “Circularly-polarized reconfigurable transmitarray in Ka-band with beam scanning and polarization switching capabilities,” IEEE Transaction on Antennas and Propag., under review.
30 90 Angle (degrees)
60
25 5
Magnitude (dB)
15
- 20×20 array (102×102 mm²),
- Max. gain: 20.8 dBi,
- Efficiency: 58%,
- Bandwidth (-3 dB): 14.6%,
- Beamsteering:
±60° in all azimutal planes.
Transmitarray at X-band
- A. Clemente, L. Dussopt, R. Sauleau,
- P. Potier, P. Pouliguen, "Wideband
400-element Electronically Reconfigurable Transmitarray in X Band ," IEEE Transactions
Antennas and Propagation, vol. 61,
- no. 10, October 2013, pp. 5017-2027.
- 90 -75 -60 -45 -30 -15
15 30 45 60 75 90
5 10 15 20 25
θ (deg)
Magnitude (dBi)
- 20×20 array (300×300 mm²),
- Max. gain: 23.2 dBi,
- Efficiency: 52.9%,
- Bandwidth (-3 dB): 15.6%,
- Beamsteering:
±70° in all azimutal planes.
Electronically steerable flat-lens Focal source RF transceiver Mechanical interface Base Band Unit Steering Control Unit Beam-steering control signal Digital processing unit