ARLA/CLUSTER: O que é uma taxa da amplitude máxima de tensão sobre a amplitude mínima de tensão (VSWR).?

[João Costa > CT1FBF]

What is VSWR?

There are many misconceptions and myths about VSWR. To try to overcome some
of these misconceptions and to try to provide an easy and understandable
summary, *Electronics Notes* has developed a page describing what VSWR is
and this is accompanied by an embedded video.

The page and video describe how a perfect match means that all the power is
absorbed by the load, and it then goes on to show what happens when there
is a mismatch. The case of the open and short circuits are used to show the
extreme situations and then these are developed to show what happens with
loads that are less than or greater then the characteristic impedance of
the feeder.

Understanding how the reflected power gives rise to voltage and current
standing waves is the key to understanding what happens when there is a
high VSWR.

Read all about VSWR:
https://www.electronics-notes.com/articles/antennas-propagation/vswr-return-loss/what-is-vswr.php

Watch the video:
https://youtu.be/BSa051lWB_c

73 *Ian G3YWX*

Ian Poole
Editor Electronics Notes
https://www.electronics-notes.com
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