The estimation of manufacturing mistakes influence to pattern of GSM base station system antenna

摘要

The non-directional at horizontal planes antenna representing a cylindrical reflector with vertical half-wave vibrators in regular intervals distributed on an azimuth is considered. The character of antenna radiation in a horizontal plane is estimated by value of uniformity factor. The influence of reflector structure manufacturing discrepancy and mistakes in emitter's installation at radial and azimuth coordinates on uniformity factor is investigated by interval method. The statistical estimation of polar pattern distortion is carried out for a case uniform and normal distributions of the random antenna geometrical parameters.