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To give a true measurement of an antennas performance phase stable measurements between the channels of a multi-channel antenna are a necessity. It is well understood that the mechanical movement of Radio Frequency (RF) cables alters the magnitude and phase of the signal. This paper presents measurements taken on a moving positioner in an anechoic chamber to assess best practice on how to measure...
This paper presents a novel axis transform for a 3 axis positioner system located in an anechoic chamber. It allows for the true measurement of a twist reflector antenna with a radome. This progresses the field of antenna measurement as, uniquely, this axis transform allows the measured aberration caused by the antenna radome to be included. Simulated and measured results are shown to validate the...
This paper presents wideband measurements in a laboratory environment. These measurements provide further evidence in support of the previously published hypothesis that the clusters within the Saleh-Valenzuela propagation model are manifestations of antenna impulse responses. The issue caused by frequency variations of the antenna radiation pattern of wideband antennas and by the selection of antenna...
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