Patent ID: 7969357

Claim:
A system for electronically aligning the polarization of an antenna to the polarization of a signal received therein or transmitted therefrom, said signal having two mutually orthogonal components, namely a vertical component and a horizontal component, said antenna being provided with a first port through which said vertical polarization component is conveyed and with a second port through which said horizontal polarization component is conveyed, wherein the system comprises: a polarization recovery unit connected to said first port and to said second port of said antenna, said polarization recovery unit including a first port connected with said first port of said antenna for receiving the vertical component of the received signal from the antenna, and a second port connected with said second port of said antenna for receiving the horizontal component of the received signal from the antenna, wherein said polarization reset unit includes: a radio frequency section provided for each of said vertical and horizontal components (Cvr and Cor) of said signal, said radio frequency section including: a low noise amplifier for attenuating or amplifying each of said vertical and horizontal components of said signal; a diplexer for dividing each of said vertical component (Cvr) and said horizontal component (Cor) of said signal into respectively first and second vertical signals (Cvr 1 and Cvr 2 ) along first and second vertical signal paths, and first and second horizontal signal paths (Cor 1 and Cor 2 ) along first and second horizontal signal paths, each path further comprising a phase displacement device and a path amplifier/attenuator device, for attenuating the divided signal of each path; a first combination unit for combining a signal from the second vertical signal path with a signal from the first horizontal signal path; and a second combiner unit for combining a signal from the first vertical signal path with a signal from the second horizontal signal path; wherein said polarization reset unit further includes a pair of output ports, each of which is coupled to one of a pair of downconverters; and a control logic unit connected to said polarization reset unit that detects the position of said antenna, by which said logic control unit calculates the lack of alignment between the polarization of said receive signal and the polarization of said antenna and controls said polarization reset unit in order to adjust the combination, phase displacement and amplitude variation operations of said radio frequency so as to obtain orthogonal components of the signal received in accordance with a polarization aligned to the-polarization of said antenna.