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Polarization—Use either 0 (H-Plane) or 1 (E-Plane) as the value of this column.
•
Each of the remaining columns corresponds to a measurement. The mmWave OTA
Validation Test Reference Architecture uses TXPower and EVM measurements in the
example, but these can be expanded to any other measurement that your application
requires.
OTA Measurement Interface
The OTA Measurement Interface (OTAMI) is the primary interface for your measurement
data. Use the OTAMI to store measurements, import and export measurement data, and post-
process your measurement results.
Note
OTAMI cannot be used to interact with the system components, positioner, or
DUT.
OTAMI Features
•
Calculates measurement results for the following measurements: TRP, Peak EIRP, Gain,
HPBW, FNBW, Pattern Cuts
•
Provides measurement data for results visualization
•
Adds measurements on-the-fly during sequence execution or import from measurements
in a CSV file
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Exports measurement data into a CSV file
•
Provides fast data storage and retrieval
Importing Measurement Data
You can either import measurement data into OTAMI from a CSV file or you can add
measurement data on-the-fly.
For an example on how to use OTAMI to import measurement data from a CSV file, refer to
the Results Example VI, located at
\LabVIEW 2018\user.lib\OTA Test\Measurement Interface\Examples
Antenna Plugin
You can create a custom antenna plugin to add support for a specific antenna module. Before
creating a custom antenna plugin, you must implement the antenna plugin interface provided
by the antenna base class.
You can access the antenna base class from the following location:
C:\Program Files\National Instruments\LabVIEW 2018\user.lib\OTA
Test\Plugins\Antennas\Base\Base Antenna Control.lvclass
The antenna base class has a beam database to store available beams. Each beam can be
accessed with a beam identifier.
The plugin implementation uses the ESF Framework, which enables LabVIEW objects to be
to be instantiated as sessions. The primary benefit of this is to enable LabVIEW objects to be
accessed and passed programmatically as named pointers. For more information about the ESF
Framework, refer to ni.com/r/esfframework.
C:\Program Files\National Instruments
mmWave OTA Validation Test Reference Architecture | © National Instruments | 33
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