Effects due to Antenna Mount in Base Station Antenna Measurements
Authors: John McKenna, Vivek Sanandiya, Larry Cohen
Publication: AMTA 2017
Copyright Owner: NSI-MI Technologies
Cellular Base Stations require efficient performance validation methods. One performance criterion is the radiation pattern. Our measurements show a radiation pattern change caused by the antenna mount structure, though industry guidance  does not yet control or mention this aspect of the test configuration. Consequently, the current guidance leads toward lack of repeatability. We recommend industry guidance be amended to include post-BSA distance as a test configuration parameter.
Measured Data is presented showing radiation pattern dependencies upon the mount in a CATR implementation. Explanations as to the Root Cause are stated.