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Designing a GSM monopole to dipole transformer

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podoljano

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Hello guys,

I am currently making a design including a GSM module which has a 50 ohm impedance output for the antenna. However I am interested in using a dipole (73 Ohm img 43Ohm) antenna with this module.
I have been searching around for either a dedicated , or discrete balun that can handle this transformation, with no luck.

Does anybody have any knowledge on how to design one, or where to look for such a design?

Best regards
Nikolaj
 

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