U2042XA Datasheet, PDF (6/25 Pages) Keysight Technologies – U2040 X-Series Wide Dynamic Range Power Sensors

06 | Keysight | U2040 X-Series Wide Dynamic Range Power Sensors – Data Sheet
Auto burst detection
Auto burst detection helps the measurement setup of the trace of gate positions and
sizes. This feature also helps set up triggering parameters on a large variety of complex
modulated signals by synchronizing to the RF bursts. After a successful auto-scaling, the
triggering parameters, such as trigger level, delay and hold-off, are automatically adjusted
for optimum operation. The trace settings are also adjusted to align the RF burst to the
center of the trace display.
Built-in radar and wireless presets
Begin testing faster; the U2040 X-Series comes with built-in radar and wireless presets
for common signals such as DME, GSM, EDGE, WCDMA, WLAN and LTE.
Gamma correction
In an ideal measurement scenario, the reference impedance of the power sensor and
device-under-test (DUT) impedance should equal the reference impedance (Z₀); however,
this is rarely the case in practice. The mismatch in impedance values results in a portion
of the signal voltage being reflected, and this reflection is quantified by the reflection
coefficient, gamma.
Using the gamma correction function, users can simply input the DUT’s gamma into the
USB power sensor using SCPI commands or the Keysight BenchVue software. This will
remove the mismatch error, yielding more accurate measurements.
S-parameter correction
Additional errors are often caused by components that are inserted between the DUT
and the power sensor, such as in base station testing where a high power attenuator
is connected between the sensor and base station to reduce the output power to the
measurable power range of the sensor. The S-parameters of these components can be
obtained with a vector network analyzer in the touchstone format, and inputted into the
sensor using SCPI commands or through the Keysight BenchVue software. This error
can now be corrected using the U2040 X-Series’s S-parameter correction function.
The sensor will behave as though it is connected directly to the DUT, giving users highly
accurate power measurements.
Bundled intuitive BenchVue software
The U2040 X-Series power sensors are bundled with the Keysight BenchVue software.
A software CD will be shipped together with the U2040 X-Series sensor. Users can also
download the software at no charge from www.keysight.com/find/BenchVue.