QuickSmithhttp://cdserv1.wbut.ac.in/81-312-0047-7/Extras/QuickSmith/Копируем все файлы в одну папку и запускаем - "setup"
QuickSmith is a simple but educational Visual Basic utility written by Nathan Iyer. Use requires a Windows computer (apologies to Linux and Mac folks). Copy the folder onto your hard disk and then RUN or double-click the file setup.exe. The program will install itself and the necessary support files on your disk, creating a program icon on the desktop that you can double-click to start the application.
On startup, the left pane of the QuickSmith window contains a Smith chart, with impedance circles in red and admittance circles in blue. (See appendix 3 for a brief explanation of the origin and workings of the chart.) If you place the cursor within the chart, the 'Z' window at the top right will provide the complex impedance of the corresponding location. You can superimpose circles of constant VSWR or contours of constant Q by clicking on the arrows in the windows above the chart. The chart defaults to an impedance of 50 ohms, which can be adjusted from the Assign Values menu.
The right pane shows a simple network schematic. On startup, the schematic is populated with a load resistor of value set to 50 ohms. You can grab elements (resistors, capacitors, inductors, lengths of transmission line) and drop them onto the schematic in either a series or shunt position. The blue dot on the Smith chart will display the current impedance of the network. When the schematic pane is active, a Sweep Setup menu allows you to specify the limits of a sweep of frequency or an element value; then click the Smith pane and use the Generate Sweep command in the Sweep menu to see how the impedance of the network changes as the relevant variable sweeps across its values. This is a very useful function for designing a matching network. When the schematic pane is active, you can perform an 'S21' sweep, which shows a graph depicting the amount of power being delivered to the load through the network (i.e., the effectiveness of the match).
The program also supports more sophisticated capabilities for constructing matching networks for microwave amplifier design, considerably beyond the scope of the discussion presented in this book. For more information, see the Quick Smith manual, provided as an Adobe Acrobat file in the QuickSmith folder.
