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Subject: Re: Impedance matching transformer and Return loss

Date: 08/15/01 at 11:53 PM
Posted by: John Dunn - Consultant
E-mail: ambertec@ieee.org
Message Posted:

In Reply to: Impedance matching transformer and Return loss posted by Abbas on 08/15/01 at 9:17 PM:

Hello, Abbas.

Please take a look at http://www.mogami.com/e/cad/vswr.html for a definition of return loss and then at http://www.testeq.com/charts/vswrconv.lasso for some nice tabulations.

What return loss means, from an intutive sense is how small a reflected signal on a transmission line will be compared to the incident signal. If the transmission line is perfectly and ideally matched to the load so that the standing wave ratio is 1:1, there will be no reflected signal at all and the return loss will be infinity.

Good luck.

John Dunn - President
Ambertec, Inc.

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