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role of attenuator in scalar network analisers

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mayavi

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what is role of attenutor is scalar networ analyser?
 

jiripolivka

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A scalar network analyzer consists of a signal generator and a calibrated detector.
Detector operates as calibrated if the input power falls within specified limits. Attenuator is used to make sure it does.
Also, the system is used to evaluate gain/loss of DUTs. To calibrate, attenuator is inserted as a DUT.
 
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    mayavi

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volker_muehlhaus

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Attenuators can also be used to to improve return loss and avoid multiple reflections.

For vector network analyzers, we use calibration with TRL/SOLT to improve the return loss. These methods are not available for scalar network analyzers.
 

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