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help to design a 1:6 transformer - RF Cafe Forums

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Tiany

Post subject: help to design a 1:6 transformer Posted: Thu Jun 25, 2009 4:50 am

Lieutenant

Joined: Sun Jun 07, 2009 9:14 am

Posts: 4

I want to design a high power(200w CW) directional coupler as following circuit,It work over the range from (30~80)MHz.

I am going to use a 3:5 voltage ratio transmission-line transformer as a 1:3 impedance ratio transformer.

However I don't know how to design 1:6 impedance ratio transformer,who can help me?

Top

yendori

Post subject: Re: help to design a 1:6 transformerPosted: Fri Jun 26, 2009 3:29 pm

General

Joined: Thu Sep 25, 2003 1:19 am

Posts: 50

Location: texarcana

Hi,

That's an interesting approach, but as an engineer I would suggest simple and practical.

There is lots of reference on how to design core and wire directional couplers.

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

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