Patent ID: 11923619
Assignee: QUALCOMM INCORPORATED
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 25:
26. A non-transitory computer-readable medium storing code at a device, the code comprising instructions executable by one or more processors to cause the device to:
receive at least one activation signal to activate one or more input ports of a plurality of input ports of one or more Butler matrices;
output signals from all output ports of the one or more Butler matrices based on one or more activated input ports, wherein the signals output from the output ports have varying phase shifts relative to each other;
phase shift, via a plurality of phase shifters respectively coupled to the output ports, the signals output from the output ports, wherein the phase shifted signals are configured to have further varying phase shifts relative to each other and a phase difference between adjacent phase shifted signals;
receive, at each one of a plurality of hybrid couplers respectively coupled to the plurality of phase shifters, a phase shifted signal from a respective phase shifter, wherein each one of the plurality of hybrid couplers is situated external to the one or more Butler matrices and between the plurality of phase shifters and a plurality of antenna elements; and
output, from each one of the plurality of hybrid couplers, two or more signals based on the phase shifted signal received from the respective phase shifter, wherein the two or more signals have a phase shift between each other.