Designed for accuracy
Flat calibration factors
Low measurement uncertainty
Amplifier intermodulation distortion measure-
ments usually employ two-tone or multi-tone test
signals. These test signals may be hundreds of MHz
apart, which poses a problem because you must
choose a single calibration factor point. The E9300
power sensors have exceptionally flat calibration
factors across their entire frequency range, which
allows you to select an appropriate calibration fac-
tor for your measurement, even when the test sig-
nals used are widely spaced in frequency.
In power measurement, the largest errors are often
caused by sensor and source mismatch. The E-series
E9300 power sensors provide exceptionally low
standing-wave-ratio (SWR). For example, SWR is
1.15 from 10 MHz to 2 GHz over 25 100C. Low
SWR means that mismatch uncertainty has been
minimized and measurement accuracy improved.
Another common source of error during power
measurement is due to harmonics of the signal
that is intended to be measured. Previous wide
dynamic range sensors incurred up to +/-0.9 dB
error when measuring signals with harmonics as
low as -20 dBc. The E9300 power sensors give the
average power level for all of the signals input to it,
no matter their in-band harmonic content. Another
form of harmonic error in diode based power
measurements is when harmonics are generated by
high power signals incident on the sensor, and
these signals can then be reflected back to the
device under test. The design of the E9300 power
sensors results in low harmonic generation when
compared to other wide dynamic range sensors in
use today. This design minimizes stray-signal
reflections and helps ensure the accuracy of high
power measurements.
High power path calibration factor
Low power path calibration factor
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