| 摘要 |
<p>Multibeam microwave Base Antenna Station for the creation of fixed wireless Network of urban scale and topology of 'star' type for the frequency range of 30 GHz and higher. With the purpose of providing narrow, address or group connection with a great number of Network subscribers situated at different positions in azimuth and elevation, including subscribers situated at different elevation angles of one and the same bearing, there is used an immovable mirror in the shape of a hemispherical belt. One mirror may provide multibeam coverage of the Network area in the angle sector of 120 degrees in azimuth and of, for example, 30 degrees in elevation.The assembly of three mirrors fastened to a common mast with their rear sides provides circular multibeam coverage of the area. The assembly with the fourth mirror added in the upper tier represents the Network subscribers access into satellite communications.</p> |
