Operating the R&S
QAR
R&S
®
QAR
59
User Manual 1178.7200.02 ─ 09
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Figure 5-13: Image of a homogenous DUT
1 = Size of the image (in mm)
2 = Evaluation area
3 = Area that contains values for mean reflection
4 = Color map
The measurement points (or areas of measurement points) that the R&S
QAR uses to
calculate the mean reflection with are also highlighted. Note that there can be several
such areas in the image, depending on the characteristics of the DUT.
Measuring a homogenous (= flat, highly reflective) DUT usually results in a Gaussian
distribution of reflection values (due to the aperture weights of the antenna array). The
evaluated values are therefore concentrated to a single area in the image.
max. reflection
- 3 dB threshold
value range for
mean reflection
Figure 5-14: Mean reflection on a homogenous DUT
Single Cluster Radome Measurements
