The intent of the downloadable software is to provide support for the material covered in the textbook. All programs have been developed and tested using Version 5.2 of MATLAB. Although the authors believe that all routines are compatible with earlier releases of MATLAB, this may not be the case.

If you intend to install the software from the CD attached to the back of the textbook, you should do the following:

1. Create an empty directory in the desired harddrive location (for example you can create the directory rf_matlab on disk C)
2. Copy all files from the CD to the directory created previously.
3. Invoke MATLAB.
4. At the command prompt in the main MATLAB window, type: cd c:\rf_matlab, (it is assumed that all files from the previous step have been copied to c:\rf_matlab)
5. At the MATLAB command line type set_path. This will add all necessary paths to the search tree within MATLAB. Disregard error message
     Name is nonexistent or not a directory: c:\RF_matlab\tools\circles\vswr
   This error does not affect the performance of the software. It is the result of a mistake made during the creation of the CD. You can obtain an updated version of the software (which eliminates this error message) by downloading the files from the links above.
6. At this point you can run all the programs. However, all path information will be deleted if you exit MATLAB. If you decide to store the path information for future use, continue with the next step.
7. In the MATLAB command window go to the file\set path option. This will launch the path browser.
8. In the path browser go to the file\save path option shown in the browser window.

If you copied the software from this website then the installation requires the following steps (here we assume that you copied the entire set of m-files into the file RF_matlab.zip):

1. Copy the file RF_matlab.zip to the the desired harddrive location (for example the root directory of drive C)
2. Unzip RF_matlab.zip file by making sure that you are restoring the extra folder information. This will create the necessary directory structure as shown in the File Organization section.
3. Invoke MATLAB.
4. At the command prompt in the main MATLAB window type: cd c:\rf_matlab, (it is assumed that all files have been copied to the disk-drive C)
5. At the MATLAB command line, type set_path. This will add all necessary paths to the search tree within MATLAB. If you do not desire to save this information for future use you can stop the installation process now. In this case you will be able to run all programs, but all path information will be deleted after closing MATLAB. If you decide to store the path information for future use, continue with the next step.
6. In the MATLAB command window go to the file\set path option. This will launch the path browser.
7. In the path browser go to the file\save path option shown in the browser window.

All files are organized in the directory structure shown below. The content of each folder is described in the table.

	Folder name	Description
	RF_matlab	Root directory
	ch01-ch10	Selected examples and m_files for chapters 1 through 10.
	tools	Common files for simulations
	amplifiers	Programs for computation of stability factor and simultaneous complex-conjugate matching for the bilateral design
	circles	Various circle equations
	gain	Constant gain circles
	noise	Constant noise circles
	quality	Constant Qn circles
	stability	Stability circles
	conversion	Conversion routines between different two-port network representations
	global	Some useful routines for the computation of the input and output reflection coefficients, VSWR, etc.
	networks	Routines for the definition of matching network circuit topologies
	smith	Programs related to the construction and plotting of various arcs in the Smith Chart