L-C FILTER SYNTHESIS
A typical menu for bandpass filter design is shown below. A nodal file is also created. before designing an L-C filter the units need to be selected from the menu bar at the opeing of ProCAP
Two menus are available for plotting both two and three-port parameters. These include all of the S-Parameters, Gain/Loss, Phase, Group Delay , Noise Figure, Return Loss, VSWR, and Voltage Gain
LOG OR LINEAR SCALE
Parameters may be plotted using either a linear or a log frequency scale. The log scale is especially useful for Op-Amp analysis.
When a transistor is used with noise parameters, noise circles and transducer input and output gain circles may be plotted.
Plots may be saved as metafiles or selected into the clipboard as a bitmap
When an element has been selected for tuning using, it may also be varied under circuit optimization. When the menu item Opt is selected a menu appears for defining optimization. When optimization is run, the program shows an error at the bottom of the screen which decreases as the circuit is optimized. When done, the plotted output and shows the final performance and updates the Circuit List.
The menu item Equate is for setting two or more parameters equal to another parameter or for introducing an equation relating parameters mathematically.
A menu for Monte Carlo yield analysis may be selected. The results show the possible variation in circuit performance for element variations. Ranges for element variations are menu selected.
Units menu allows selection of GHz, MHz, or KHz for frequency. Length may be in inches, mils ,cm, or mm and Surface Roughness in microns or microinches.
Numerical output listing may be obtained for most parameters as S-Parameters, Y, Z, ABCD, and Impedance parameters for one, two and three-ports.
More than 100 types of elements may be selected for the widest variety of designs. Most of the elements, found in other general analysis programs
are also provided in ProCAP.
Colors for plots may be menu selected for any set of colors with white or black background.
IMPORT PARFIL DESIGNS to PROCAP
A filter design created in Parfil may be saved in a file for input into ProCAP.