1MA178: The Y Factor Technique for Noise Figure Measurements

This application note describes in detail the steps required to make a noise figure measurement on a spectrum analyzer using the “Y Factor” technique. Background equations are presented for each step of the calculation. In addition, guidelines are provided to ensure a repeatable measurement. Measurement uncertainty is then reviewed, including contributions due to the noise source, analyzer, and the DUT itself. Finally, a software utility is presented that automates the noise figure calculation using four measurements from a spectrum analyzer. The utility checks the measurement guidelines and highlights potential problem areas. It then calculates the noise figure for the DUT along with the measurement uncertainty.

Name Type Language Version Date Size
1MA178_2e_NoiseFigure.pdf Application Note English 2 01.12.2015 884 kB
1MA178_NF_Uncertainty_Calc_v321.exe Application Note File English 3.21 01.12.2015 311 kB
Thank you.

Your request was successfully sent!

We will get in touch with you soon.

Your Rohde & Schwarz Team

Feedback
Get in touch with Rohde & Schwarz!
Please tell us which topic.

Please enter your inquiry.
Contact information

Please enter your first name.

Please enter a valid e-mail address.

Please enter your name.
Security Response Code
show captcha

The input was not correct.
Do not enter data in this field
*Mandatory Field
International Website