Principles of Planar Near-Field Antenna Measurements
By Clive Parini

Color Figures


Figure 3.21: A 14 7.9 m horizontal planar scanner (courtesy of NSI)

Figure 3.23: A 33 16m, 50 GHz, planar scanner (courtesy of NSI)

Figure 5.21: Ludwig I polarisation basis superimposed on a spherical coordinate system

Figure 5.22: Spherical polarisation basis

Figure 5.23: Azimuth over elevation polarisation basis - Ludwig II

Figure 5.24: Elevation over azimuth polarisation basis - Ludwig II

Figure 5.25: Ludwig III x-copolar polarisation basis

Figure 5.32: 3D plot of a scalar rotation of a far-field vector-pattern function, Roll = 0

Figure 5.33: 3D plot of a scalar rotation of a far-field vector-pattern function, Roll = 90

Figure 6.6: E ? field component at 9 GHz

Figure 6.7: E ? field component at 9 GHz

Figure 6.10: Pseudo-colour mesh-plot of measured far-field power pattern of waveguide probe at 9 GHz plotted using a Ludwig III polarisation basis

Figure 6.16: E ? probe pattern at 9 GHz

Figure 6.17: E ? probe pattern at 9 GHz

Figure 9.2: The Astrium limited ASAR antenna developed for the European Space Agency Envisat Program shown under test in the large PNFS (courtesy of Astrium)

Figure 9.9: Reconstructed amplitude and phase function

Figure 9.10: Reconstructed amplitude and phase function with active alignment correction applied

Figure 9.13: Power propagating in the near zone of an antenna
Copyright The Institution of Engineering and Technology 2007 under license agreement with Books24x7
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