Antenna array for point-to-point microwave radio system

A communication system for communicating information via a wireless link between a first location and a second location, comprising:

• a first antenna array arranged at the first location including;
• at least two antenna elements each to transmit information as a narrow beam signal to be directed toward a second location, the antenna elements including at least one antenna element to transmit a narrow beam signal toward a redirection point different from the second location;
• and
• a redirection device located at the redirection point to reflect the narrow beam signal from the at least one antenna element and to redirect the received narrow beam signal toward the second location;
• wherein the narrow beam signals directed towards the second location are spaced apart by a separation distance at the first location that results in an interference pattern being formed at the second location with peak-to-peak spacing narrower than the individual antenna element beams, the interference pattern including peaks and nulls;
• and
• a second antenna array arranged at the second location including at least two antenna elements to receive the narrow beam signals from the first antenna array.

A method of communicating information via a wireless link between a first location and a second location, the method comprising:

• transmitting a first narrow beam signal from the first location to be directed towards a receiver at the second location;
• transmitting at least a second narrow beam signal from the first location towards a first redirection point associated with the first location;
• redirecting the second narrow beam signal from the first redirection point towards the receiver;
• and
• spacing the first and second narrow beam signals apart by a predetermined separation distance at the first location such that the narrow beam signals from the first location converge and overlap to form an interference pattern proximate to the receiver, the interference pattern including peaks and nulls having a peak-to-peak spacing narrower that a width of each of the received narrow beam signals.