A recent book published by Signal Processing Group Inc., and authored by Ain Rehman is now available for purchase at Amazon. The idea behind the book is the “eCADBook” (TM). The book deals with fairly important quantities in topics such as VSWR, reflection coefficients, return loss, mismatch loss, s11/s22, impedance matching, the use of Smith charts in impedance matching, transmission lines etc. The mathematics is kept to a minimum in the text with emphasis being placed on intuitive understanding. However, the “Math” is not entirely forgotten and is embodied in a set of Javascripts ( provided separately). The reader can use these scripts to calculate results quickly without getting lost in a morass of mathematical expressions.