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S-Parameter Files:
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Within this directory you are able to see the main operating point
information within the filename:
For bipolar transistors you have to read as follows:
the filename XXAAABBB.S2P is coded:
XX internal type definition
AAA shows the voltage; V means Volt;
the character stands instead of the decimal point
ie. 10V means 10Volts; 1V0 means 1.0Volts
BBB shows the current; M means mA,
A means Ampere, U means µA;
the character stands instead of the decimal point
ie. 10M means 10mA; 1M0 stands for 1.0mA;
A10 for 0.1A; 10U for 10µA;
(this is also valid for the GaAs FETs)
For diodes you have to read as follows:
the filename XXAAABBB.S1P is coded:
XX internal type definition
AAA shows the voltage; V means Volt;
the character stands instead of the decimal point
ie. 10V means 10Volts; 1V0 means 1.0Volts
BBB shows the current; M means mA,
A means Ampere; U means µA
the character stands instead of the decimal point
ie. 10M means 10mA; 1M0 stands for 1.0mA;
A10 for 0.1A; 10U for 10µA;
if the voltage is V00 the diode is foreward biased and a current is shown
if the current is U00 the shown voltage is the backward biasing voltage
For files , changed v( volt) into p, are measured in forward direction
forward direction is marked with negativ VR
For MOS FETs and dual gate GaAs-FETs you have to read as follows:
the filename XXAABBCC.S2P is coded:
XX internal type definition
AA is UDS in V*0.1 i.e 50 means 5.0V; 15 means 1.5V;
BB is UG(2)S in V*0.1 ie 35 means 3.5V; 10 means 1.0V;
CC is ID in mA ie 10 means 10mA; 05 means 5mA;
README.TXT V4.0 September 2000