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Purpose of Balun in RF circuit

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ckJJ

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www.ycars.org/efra/module%20c/antmatch.htm

Hi,

What is the purpose or use of balun in RF circuits?

Thanks.

Chun Kit
 

E-design

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Used to impedance match and to convert from unbalanced feed to balanced output or balanced to unbal BAL (balanced) UN(unbalanced)
 

    ckJJ

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kon

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for example:
1.impedance transform (according to the coils)
2.differential signal to single-ended signal
 

STOIKOV

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check this document it has some terms related with baluns
 

    ckJJ

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