Title :
Effects of test vehicle patterns on cellular coverage measurements
Author :
Eskelinen, P. ; Salpala, A.
Author_Institution :
Kotka Inst. of Technol., Finland
fDate :
3/1/1997 12:00:00 AM
Abstract :
Mobile test systems intended for cellular phone coverage measurements suffer from uncertainties, which are caused by the unpredictable radiation pattern of the measuring antenna installation. Not only do adjacent structures and very common multiple antennas disturb the characteristics, but also in the case of an ideal position does the vertical lobing introduce errors exceeding 10 dB. The problems are likely to be worse in dense urban areas, where multipath from surrounding buildings is the dominating propagation mode
Keywords :
antenna radiation patterns; antenna testing; cellular radio; fading; mobile antennas; monopole antennas; multipath channels; receiving antennas; adjacent structures; azimuth pattern; cellular phone coverage measurements; errors; fading problems; measuring antenna installation; mobile phone antennas; mobile test systems; multipath; multiple antennas; quarter wave antenna; test vehicle pattern effects; uncertainties; unpredictable radiation pattern; vehicle mounted antennas; vertical lobing; Antenna measurements; Antenna radiation patterns; Antennas and propagation; Buildings; Cellular phones; Measurement uncertainty; Mobile antennas; System testing; Urban areas; Vehicles;
Journal_Title :
Aerospace and Electronic Systems Magazine, IEEE
