Antenna near-field probe station scanner

Details Antenna near-field probe station scanner Antenna near-field probe station scanner

2011-01-25

2011-01-25

Owens, Douglas W (Department: 2821)

Communications: radio wave antennas

Antennas

Measuring signal energy

Reexamination Certificate

active

07876276

ABSTRACT:
A miniaturized antenna system is characterized non-destructively through the use of a scanner that measures its near-field radiated power performance. When taking measurements, the scanner can be moved linearly along the x, y and z axis, as well as rotationally relative to the antenna. The data obtained from the characterization are processed to determine the far-field properties of the system and to optimize the system. Each antenna is excited using a probe station system while a scanning probe scans the space above the antenna to measure the near field signals. Upon completion of the scan, the near-field patterns are transformed into far-field patterns. Along with taking data, this system also allows for extensive graphing and analysis of both the near-field and far-field data. The details of the probe station as well as the procedures for setting up a test, conducting a test, and analyzing the resulting data are also described.

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