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Working with S, Y, Z Parameters<br />

Output File Specification<br />

In the following example the S parameters of the block TWO_PORT_SUBCKT are being<br />

extracted between 10kHz and 10MHz with 10 analysis points per decade. The Touchstone file<br />

Z1.par defines the complex impedance of the source at port 1. The extracted S parameters are<br />

stored in the file subckt.par with the frequency in kHz. The data is stored in the form of the<br />

Magnitude Angle.<br />

Vin 1 0 iport=1 zport_file="Z1.par"<br />

Xsub1 1 0 2 0 TWO_PORT_SUBCKT<br />

Vout 3 0 iport=2 rport=50<br />

.ac dec 10 10000 10meg<br />

.plot sdb(1,2) sdb(1,1) sdb(2,2) sdb(2,1)<br />

.ffile S subckt.par KHZ MA<br />

690<br />

Eldo® User's Manual, 15.3

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