| Home | Terms of Use | Site Map | Contact Us |
IndustryCommunity.com > Electrical and Electronic Community > Instrument Design Forum > Message
Main Menu

[ List Subjects ][ Post Message ]
[ View Followups ][ Post Followup ]

Subject: Re: about Smith Chart

Date: 10/26/03 at 5:23 PM
Posted by: Ray
E-mail: rrogers@plaidheron.com
Message Posted:

In Reply to: about Smith Chart posted by frank on 10/26/03 at 8:36 AM:

This is a test right?
It's been some time, but I have been meaning to recall my RF knowledge for some time.
Trusting my memory to misserve me at some embarassing point.
The Inductive/Capcitative part is trivial.
Hook an inductor across the input port and a capacitor across the output port; with no connection and you should have the results. For power flow a gyrator would make either and inductive or capcitor appear that way.
and HP has other RF design papers covering the smith chart.
The "Network Analyzer Basics" document would probably cover a lot it.
I don't have a 8753B to test it on; but I think the little circles would correspond to parasitic elements that are weakly coupled to the signal paths; parasitic capacitors coupled by traces and such. They should be outside of your freq range, or you should make sure the coupling is acceptable.
Sorry I couldn't be of more help; presuming that this wasn't just a "testing" question.


Follow Ups:

Post a Follow-up:


Message to Post:


1999-2001 Sunlit Technology Co., Ltd. All rights reserved.