Marchand balun guidelines

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DDavid

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Hi all,

I want to design Marchand balun 50-25 Ohm.
I saw&read some papers, but till now I didn't understand how to design it...
Please kindly suggest step-by-step guidelines...

Thx
Dave
 

Hi

Yep,
10minutes ago...

Example that they show is not understandable, too much assumptions...

how to calculate the impedance?

Dave
 
Last edited:

any one?


Dave
 
Last edited:

DO anybody know how to do it?
 

rotmanlens said:
Hello DDavid

Have you had a chance to look at this paper.it explains Marchand Balun with such a great detail.

**broken link removed**

Regards
Rotmanlens
Click to expand...

I think this paper is helpful.
Maybe your question is how to decide the Zoe and Zoo of coupled line. I guess you've known the coupling coefficient you need (50--25ohm), then ADS tools "linecalc" can help.
 

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