Patent ID: 7746289

Claim:
A fixed-position transmitter node for making wireless links to two or more fixed-position receiver nodes located within a non-omnidirectional composite coverage volume for the transmitter node, the transmitter node comprising: a radio source that provides an RF signal to be transmitted to the fixed-position receiver nodes via the wireless links; and an antenna structure comprising: an RF power splitter coupled to the radio source, for splitting the RF signal into two or more RF signals; two or more passive narrow-beam antennas coupled to the RF power splitter, the passive narrow-beam antennas making point-to-point wireless links to different fixed-position receiver nodes, wherein each passive narrow-beam antenna is characterized by an individual coverage volume having a narrow beam of approximately 1 to 3 degrees in azimuth directionally oriented toward one of the different fixed-position receiver nodes, and the individual coverage volumes together define the non-omnidirectional composite coverage volume; and an RF transparent enclosure that houses the RF power splitter and the two or more passive narrow-beam antennas.