Title :
Mutual coupling calculations including edge effects
Author_Institution :
Ericsson Radar Electron. AB, Molndal
fDate :
12/8/1994 12:00:00 AM
Abstract :
The mutual coupling between rectangular waveguide elements in a finite ground plane is calculated including the effect of edge diffraction. The edge contribution is obtained as the coupling to an equivalent image element, weighted with the edge diffraction coefficient. Comparison with measured coupling data in the H-plane shows that the edge diffraction effects on coupling, both amplitude and phase, can be accurately predicted down to levels of the order of -70 to -80 dB
Keywords :
antenna phased arrays; antenna theory; electromagnetic wave diffraction; rectangular waveguides; waveguide antenna arrays; H-plane; diffraction coefficient; edge diffraction; edge effects; equivalent image element; finite ground plane; mutual coupling calculations; rectangular waveguide elements;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19941435
