Arrays of waveguide radiators are the subject here. The spectral domain method is used extensively. Small finile arrays are solved via equations over the modes and elements. This work is one of the first using multimode spectral analysis. The aim of the book is to create a mathematical tool for analyzing and calculating a wide range of PAAs and also studying their electrodynamic characteristics. The book will not only help to understand the peculiarities of PAA operation, but also provide the corresponding...