The Design of Waveguide-Fed Slot Arrays

Many different types of wave-guiding structures have found practical application in a variety of microwave devices. These guiding structures include the coaxial line, rectangular and circular waveguides, stripline, and microstrip. A characteristic of each of these structures is that it will support a set of modes, usually described as consisting of two subsets: TE (transverse electric) and TM (transverse magnetic). For the multiple-conductor structures (coaxial line, stripline, and microstrip) a TEM mode is also possible—indeed, is the dominant mode.