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 Episode 40 - S-parameters: Play Now | Play in Popup | Download (868)

This is the first in a series of podcasts on the subject of RF and microwave measurement. In this episode we reintroduce S-parameters, and give some of the basic equations for cascading a two-port and a one-port or two-port. S-parameters come from a concept that was borrowed from particle physics by electrical engineers to solve the problem of propagation of RF signals through a network. A network is anything that has ports where signals can be input and output, if there are N of these ports, there are N² of these S-parameters.

If there is an wave amplitude input at port n of a_n, and and output of wave amplitude b_m at port m, then

S_mn = b_m / a_n

There were several courses introduced into the LearningMeasure.com course catalog since the last podcast. These are

• CPROG101 - Introduction to the C Programming Language
• INST404 - Amplifier Types and Specifications
• MEAS462 - Introduction to MIL-STD-461 CS Measurements

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As always, let us know if there is any topic you want to see covered on the podcast, or if there is any course you would like to see developed.

This entry was posted on Saturday, July 25th, 2009 at 10:25 am and is filed under podcast. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.