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Coupled Line Coupler

 

Coupler Even and Odd Mode Impedance Calculator
with Frequency Response Table
The even and odd mode impedances of a single section of coupled lines is uniquely determined by only one parameter. Enter the coupling level in dB to compute the Even and Odd mode impedances and the frequency response. (all resistances are normalized to Zo=50 Ohms)
0.707 120 20

Note: Coupling level must be positive--greater than 0 dB
The lossless ideal quarter wave coupler performance repeats at every odd harmonic of the center frequency, 
the response table is scaled to your input frequency--if your number is GHz, the table is in GHz


 
Author: The Other Editor
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