A novel joint transmit and receive beamformer algorithm to suppress self-interference (SI) in shared aperture full duplex active antennas for LEO user terminals is presented. The algorithm ensures regulatory radiation mask compliance while also maximizing realized gain for a given SI level. Simulation results for a 1024-element Vivaldi array at Ku-band illustrate the tradeoff between achievable SI suppression and gain. In the absence of frequency diplexers or isolators, a total isolation in excess of 100 dB over scan angles of 5° - 60° is achieved, with an isolation of 5 dB at broadside, while the per-channel coupled power levels at the input of the LNAs are suppressed by 5 dB through transmit beamforming over the entire scan range.
No takes yet. Share an insight, caveat, or question.
Spuy et al. (2024) studied this question.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: