US 12,170,550 B2
Systems and methods for wireless simultaneous transmit and receive operation
Habarakada Liyanachchi Prabath Arjuna Madanayake, Miami, FL (US)
Assigned to The Florida International University Board of Trustees, Miami, FL (US)
Filed by Habarakada Liyanachchi Prabath Arjuna Madanayake, Miami, FL (US)
Filed on Feb. 12, 2024, as Appl. No. 18/438,914.
Claims priority of provisional application 63/486,616, filed on Feb. 23, 2023.
Prior Publication US 2024/0291525 A1, Aug. 29, 2024
Int. Cl. H04B 7/04 (2017.01); H04B 1/16 (2006.01); H04B 1/40 (2015.01); H04B 7/0426 (2017.01)
CPC H04B 7/0426 (2013.01) [H04B 1/1607 (2013.01); H04B 1/40 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A system for wireless simultaneous transmit and receive (STAR), the system comprising:
at least one multi-input multi-output (MIMO) radiofrequency (RF) front-end,
each MIMO RF front-end comprising:
an RF-shielded anechoic chamber;
a symmetrical pair of arrays comprising a first array configured for communication and a second array symmetrical to the first array and disposed within the RF-shielded chamber; and
a pair of multi-beam beamforming networks in operable communication with the symmetrical pair of arrays,
the second array being configured as a reference for subtracting self-interference between transmitters and receivers of the system,
the pair of multi-beam beamforming networks comprising a first passive microwave multi-beam beamforming network and a second passive microwave multi-beam beamforming network identical to the first passive microwave multi-beam beamforming network,
each of the first passive microwave multi-beam beamforming network and the second passive microwave multi-beam beamforming network being a Butler-Matrix based true-time delay microwave network, a Rotman lens based microwave network, or a Luneberg lens based microwave network,
each of the first passive microwave multi-beam beamforming network and the second passive microwave multi-beam beamforming network comprising connected to each beam port thereof: a) a circulator and a differential connection; or b) a 180 hybrid coupler.