S21 in Smith-Chart ? - RF Cafe Forums
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Below are all of the forum threads, including all the responses to the original posts.
Post subject: S21 in Smith-Chart ?
Unread postPosted: Fri Jul 08, 2005 5:24 am
does it make sense to visualize S21 in a Smith-Chart ? What would be your reference impedance ?
Unread postPosted: Fri Jul 08, 2005 7:49 am
Not really.. If there is gain you wont see anything unless you have an expanded smith chart. If you want a visual aid for S21, a polar chart is the way to go.
Unread postPosted: Mon Jul 11, 2005 3:39 am
Joined: Tue Mar 15, 2005 11:43 pm
Yes, I agree with the previous post.
just want to add that, smith chart is limited to Magnitude 1. While at most cases, |S21| >1.
That's why, it can't be seen in the smith chart unless you expand it.