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> How does a directional coupler work?
CheeseSandwich
Posted: June 27, 2006 06:36 pm
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(See title.) Tried Google.


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govjohn
Posted: June 27, 2006 08:00 pm
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If you mean the microwave sort, by magic. John.
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MacFromOK
Posted: June 27, 2006 09:10 pm
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"A directional coupler separates signals based on the direction of signal propagation. These devices are used to unequally split the signal flowing in the mainline and to fully pass the signal flowing in the opposite direction."

Excerpt from this link (lol, found by Googling...). wink.gif

http://members.tripod.com/michaelgellis/direct.html

Also has diagrams and schematics. smile.gif

Cheers, Mac


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CheeseSandwich
Posted: June 28, 2006 04:15 pm
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So what is the difference between a wave travelling one way and a wave travelling the other way? How can the circuit tell the difference?


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MacFromOK
Posted: June 28, 2006 06:43 pm
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Ya might want to Google "directional coupler theory" (include the quotes). It only returned 33 hits a few minutes ago. wink.gif

Cheers, Mac


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Andrzei
Posted: June 29, 2006 10:38 am
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I always try wikipedia first. This time it worked again... wink.gif

http://en.wikipedia.org/wiki/Directional_coupler

Andrzei
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CheeseSandwich
Posted: June 29, 2006 12:59 pm
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"Theory" - that's a good word for searches, I've never thought of it beforee dry.gif


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