Copyright: Copyright (c) 1999, Seed Solutions, Inc.


smc is the Series Matching Calculator. It takes a load impedance and transmission line impedances and computes a pair of segments that match the load to the line.


Z0 is the impedance of the line going back to the source. It is the same as Z1, the segment attached to the load.


Controls in this area specify the Z1 segment.


Contains the L1 transmission line impedance.


Increments and decrements the Z1 impedance.


Contains the L1 transmission line velocity factor (VF). Velocity factor is measured in percent.


Increments and decrements the L1 transmission line velocity factor (VF).


Contains a set of choices for transmission line L1. They are taken from popular materials. The impedance (Z1) and velocity factor (VF) will also be set to reflect the line.


L1 is the length of transmission line that connects the load (antenna) to the L2 section.


Z1 is a section of transmission line with a specified impedance.


Controls in this area specify the Z2 segment.


Contains the L2 transmission line impedance.


Increments and decrements the Z2 impedance.


Contains the L2 transmission line velocity factor (VF). Velocity factor is measured in percent.


Increments and decrements the L2 transmission line velocity factor (VF).


Contains a set of choices for transmission line L2. They are taken from popular materials. The impedance (Z2) and velocity factor (VF) will also be set to reflect the line.


L2 is the length of transmission line that connects the L1 section to the transmission line which returns to the source.


Z2 is a section of transmission line with a specified impedance.


The Load resistance, measured in ohms.


Increments and decrements the Load resistance.


The Load reactance, measured in ohms.


Increments and decrements the Load reactance.


The Load is typically an antenna, although it can be any complex impedance.


ZL is the impedance of the Load, which is typically an antenna.


Displays the results computed for L1, the section of transmission line connected to the load.


Displays the results computed for L2, the section of transmission line connected to L1. L2 also connects to the line going back to the source.


Contains the frequency used to compute the lengths of L1 and L2. Physical lengths can only be computed if frequency and both velocity factors (VF) are provided. The frequency is specified in MHz, 7.150, for example.


Starts computation of L1 and L2. At the least, the load impedance (resistance and reactance) and Z1, Z2 impedances must be specified. If frequency and velocity factors (VF) are provided, physical line lengths can also be computed.


Version number of the program.


Explanation of the proposed choice.


Overwrites the existing file with new data.


Appends the new data to the end of the existing data.


Cancels the save operation, no files are changed.