[SI-LIST] Re: Quarter wavelength transmission lines
- From: jrbarnes@xxxxxxxxxxx
- To: richard2636@xxxxxxxxxx, si-list@xxxxxxxxxxxxx
- Date: Wed, 14 Nov 2001 15:20:48 -0500
Rich,
A quarter-wave transmission line acts as an impedance transformer:
* With a transmission line having impedance Zo,
* Terminated at one end by impedance ZL,
* The other end of the line will see an impedance of (Zo * Zo) / ZL.
If you terminate a quarter-wave transmission line in a short circuit, the other
end will look like an open. Quarter-wave stubs are used a lot in waveguides,
for example, to provide mechanical support without electrically loading down the
signals.
John Barnes KS4GL
Advisory Engineer
Lexmark International
------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
or to administer your membership from a web page, go to:
//www.freelists.org/webpage/si-list
For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
List archives are viewable at:
//www.freelists.org/archives/si-list
or at our remote archives:
http://groups.yahoo.com/group/si-list/messages
Old (prior to June 6, 2001) list archives are viewable at:
http://www.qsl.net/wb6tpu
Other related posts:
