Invited paper. Some observations on the computer-aided design/synthesis of slotted-waveguide antennas

Abstract

Planar array antennas which are formed by stacking together two or more linear slotted-waveguide arrays are widely used in radar systems. These arrays are becoming increasingly amenable to comprehensive computer-aided design and synthesis procedures, since the scattering characteristics of apertures in waveguide can now be predicted to a high degree of accuracy. This paper reviews the three most useful theoretical methods of determining slot characteristics and examines the advantages and disadvantages of the different methods for use in computer-aided design programmes.