E5071C
884
Port Characteristics Correction
The equivalent source match error, the directivity error, and the tracking
error of each test port bridge are corrected. In the case of absolute
measurements (Option 008), the gain of each test port is corrected.
Sweep Averaging
The average of complex indices is determined based on data obtained from
multiple sweep measurements. Sweep averaging is effective in reducing
random noise in measurements.
Raw Data Array
The results from all data processing done up to this point are stored in this
array as raw data. All prior data processing is performed as each sweep
takes place. When the full N-port error correction (N=2 to 4) is enabled, all
N × N S parameters are stored in the raw data array and used in error
correction. Users are allowed to access (read only) this raw data array.
Error Correction/Calibration Coefficient Data Array
When error correction is enabled, the process eliminates the system errors
that are reproducible and stored in the calibration coefficient data array. It
accommodates everything from the simple vector normalization to the full
12-term error correction. The user is allowed to access (read/write) this
calibration coefficient data array. Gain correction is performed in absolute
measurement.
Port Extension
This process carries out a simulation of adding or eliminating a variable
length no-loss transmission path on each test port so that the reference
plane of calibration is moved. The port extension is defined by an electrical
delay (sec).
Fixture Simulator
A data conversion by the fixture simulator function is executed. The fixture
simulator function is a collective term for six different functions: balanced-
unbalanced conversion, addition of matching circuits, port reference
impedance conversion, network elimination, addition of differential
matching circuits, and differential reference impedance conversion.
Corrected Data Array
Unlike the raw data array, this array stores the results obtained after error
corrections, port extensions, or the fixture simulator functions are applied.
The user is allowed to read/write data from/to the corrected data array.
Corrected Memory Array
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