A NODE IN A LINE-OF-SIGHT WIRELESS COMMUNICATION LINK

摘要

The present invention relates to a node (1) in a line-of-sight wireless communication link (L). The node (1) comprises at least first (2) and second (3)antennas mounted at a certain distance (d) from each other. The node (1) further comprises a signal processing unit (4) and a local oscillator (5). The local oscillator (5) is arranged for demodulating received signals by the antennas (2,3) having a first frequency (fi). This approach reduces differential phase noise compared to individual local oscillators for each antenna. The demodulated signals are handled by the signal processing unit (4). The signal processing unit (4) and the local oscillator (5) are positioned in a common housing (6), and the antennas (2, 3) are connected to the local oscillator (5), where furthermore the distance (d) between adjacent antennas (2, 3) is adjustable. Accordingly, nodes designed for a specific hop distance are avoided.