CPC H04B 7/0617 (2013.01) [H04B 10/25753 (2013.01); H04B 10/25759 (2013.01); H04L 27/12 (2013.01); H04W 72/541 (2023.01)] | 20 Claims |
1. A beamforming element, the beamforming element comprising:
an imprinting-shifting component configured to imprint a respective input signal onto a second beam to form an imprinted beam, wherein the imprinting-shifting component comprises
at least one modulator, and
a splitting optical filtering element configured to receive the imprinted beam and provide a plurality of output beams, each output beam of the plurality of output beams corresponding to a respective channel frequency range, and
a plurality of phase shifters to adjust respective optical phases of the plurality of output beams independently to obtain respective phase-shifted imprinted beams;
one or more multi-beam optical couplers each configured to receive a respective phase-shifted imprinted beam and a first beam, and further configured to cause the phase-shifted imprinted beam and the first beam to interfere with one another to form a respective interference beam; and
one or more optical-to-electrical converter components each configured to receive a respective interference beam and generate a respective frequency-shifted electrical signal based on the respective interference beam and having a time delay corresponding to the adjustment of the optical phase of the imprinted beam.
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