Title :
Additional losses and time delay fluctuations of TE11 modes in curved circular waveguides-application to feeder antennas
Author :
Fray, C. ; Andritsos, I. ; Papiernik, A.
Author_Institution :
Université de Limoges, Laboratoire d´Electronique des Microondes, Equipe de recherche associée au CNRS 123, Limoges, France
Abstract :
The additional losses and fluctuations in time delay in TE11 operating curved circular waveguides have been determined. The results obtained reveal that additional losses are less than 0.1 dB and time delay fluctuations are less than 0.5 ns at a bend exit (curvature radius one metre). This permits the use of nonrigid circular waveguides as feeders to antennas in communication systems operating at frequencies above 10 GHz.
Keywords :
antenna feeders; circular waveguides; waveguide theory; TE11 modes; additional losses; antenna feeders; antennas in communication systems; curved circular waveguides; feeder antennas; frequencies above 10 GHz; nonrigid circular waveguides; time delay fluctuations; waveguide theory;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19810254
