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/usr/share/atlc/examples/microstrip_coupler.bmp.txt is in atlc-examples 4.6.1-2.

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1
microstrip_coupler.bmp 3 Er_odd=   2.417 Er_even=   2.652 Zodd=  67.257 Zeven=  81.221 Zo=  73.910 Zdiff= 134.514 Zcomm=  40.611 Ohms VERSION=4.6.0