Polarization Reconfigurable Apparatus, Communications Device, and Polarization Reconfiguration Method

A communications device, comprising:

• a processor;
• and
• a non-transitory computer readable memory that stores code instructions for execution by the processor, the code instructions including instructions for:
• generating a first signal;
• determining a polarization mode of a to-be-transmitted signal, wherein the polarization mode comprises linear polarization, circular polarization, and elliptical polarization;
• dividing the first signal into 2N first signals, wherein N is a positive integer;
• adjusting, based on the determined polarization mode, an amplitude and a phase of a (2i−1)th first signal and an amplitude and a phase of a 2ith first signal, wherein i=1, . . . , N;
• and
• performing digital-to-analog conversion on an adjusted (2i−1)th first signal to obtain a (2i−1)th second signal, and performing digital-to-analog conversion on an adjusted 2ith first signal to obtain a 2ith third signal.

A polarization reconfiguration method, applied to a communications device, wherein the communications device comprises 2N ports, a signal transmitted by a (2i−1)th port is orthogonal to a signal transmitted by a 2ith port, i=1, . . . , N, N is a positive integer, and the method comprises:

• generating a first signal;
• determining a polarization mode of a to-be-transmitted signal, wherein the polarization mode comprises linear polarization, circular polarization, and elliptical polarization;
• dividing the first signal into 2N first signals;
• adjusting, based on the determined polarization mode, an amplitude and a phase of a (2i−1)th first signal and an amplitude and a phase of a 2ith first signal
• performing digital-to-analog conversion on an adjusted (2i−1)th first signal to obtain a (2i−1)th second signal, and performing digital-to-analog conversion on an adjusted 2ith first signal to obtain a 2ith third signal;
• and
• transmitting the (2i−1)th second signal by using the (2i−1)th port, and transmitting the 2ith third signal by using the 2ith port.