Two-dimensional optical architectures for the receive mode of phased-array antennas.
We propose and experimentally demonstrate two optical architectures that process the receive mode of a p x p element phased-array antenna. The architectures are based on free-space propagation and switching of the channelized optical carriers of microwave signals. With the first architecture a direct transposition of the received signals in the optical domain is assumed. The second architecture is based on the optical generation and distribution of a microwave local oscillator matched in frequency and direction. Preliminary experimental results at microwave frequencies of approximately 3 GHz are presented.
Pastur
L
L
Thomson-CSF/Laboratoire Central de Recherches, Domaine de Corbeville, 91404 Orsay Cedex, France.
Tonda-Goldstein
S
S
Dolfi
D
D
Huignard
J P
JP
Merlet
T
T
Maas
O
O
Chazelas
J
J