Reducing Mismatch Errors In A Transmission Measurement; Reducing Mismatch Errors When Measuring Both Reflection And Transmission - HP 8711C User Manual

Optimizing Measurements
Reducing Mismatch Errors
Source match errors in transmission measurements can be reduced by
performing an enhanced response calibration. (See Chapter 6.) Load
match errors can be reduced by using an attenuator on the analyzer's
TRANSMISSION RF IN port.
N O T E
Always use high quality attenuators. Six to ten dl3 of attenuation should be sufficient to significantly
reduce mismatch errors.
When you want to measure reflection and transmission simultaneously, or
without changing the test setup, perform both a reflection calibration and an
enhanced response calibration using the exact frequency parameters that you
output of the DUT.
N O T E
Using an attenuator on the output of the OUT will reduce the system dynamic range.
5-18
深圳市盛腾仪器仪表有限公司
Tel:0755-83589391 Fax:0755-83539691 Website: www.Sengt.c