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Behaviour/Response of Quadrature Hybrid Coupler

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sdmuashr

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Hi,

I just want to know the behaviour of a Quadrature Hybrid Coupler if the signals of equal power but with different phases are applied at the output of the coupler as shown below.

**broken link removed**
 

If they are 90 deg phase difference, you can get 3dB more power from in or iso port, and about -20dB (ideally, no power) from the other port .
 

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