Real Time Polarization Compensation for Dual-Polarized Millimeter Wave Communication

摘要

A communication system comprises a signal generator, polarizer, signal combiner, transmitter, positioning device, and controller. The signal generator converts first and second received data streams into respective first and second orthogonal linearly polarized signals. The polarizer is at a first rotation angle and converts first and second orthogonal linearly polarized signals into, respectively, a first right-hand-circularly polarized (RHCP) signal and first left-hand circularly polarized (LHCP) signal, which are combined in signal combiner into a signal sent by transmitter to a receiver. The positioning device adjusts the first rotation angle to substantially increase isolation between third and fourth orthogonal linearly polarized signals at the receiver. The controller performs the real-time analysis of transmission loss and directs the positioning device to adjust the first rotation angle.

主权项

1. A method for transmitting signals from a first communication node to a second communication node, the method comprising:
receiving first and second data streams to be transmitted from the first communication node; converting the first and second data streams to first and second orthogonal linearly polarized signals; receiving the first and second orthogonal linearly polarized signals at a first polarizer, the first polarizer oriented at a first rotation angle, wherein the first polarizer converts the first and second orthogonal linearly polarized signals to, respectively, a first right-hand-circularly polarized (RHCP) signal and a first left-hand circularly polarized (LHCP) signal; combining the first RHCP signal and first LHCP signal into a transmitted signal having a first signal strength and providing the transmitted signal transmitted to a receiver; and adjusting the first rotation angle to substantially increase isolation between third and fourth orthogonal linearly polarized signals at the receiver, wherein the third and fourth orthogonally linearized polarize signals are derived, respectively, from the transmitted signal received at the receiver, and correspond, respectively to transmitted versions of the first and second linearly polarized signals, wherein the adjusting is based at least in part on a real-time analysis of a transmission loss of the of the third and fourth orthogonal linearly polarized signals as compared to the transmitted signal as sent by the transmitter.