Title :
Grating lobes caused by parallel-plate polariser
Author :
Cloete, J.H. ; George, W.I. ; Toit, L. J Du
Author_Institution :
University of Stellenbosch, Department of Electrical & Electronic Engineering, Stellenbosch, South Africa
Abstract :
An unexpected high-level sidelobe was encountered when a parallel-plate polariser was fitted to a slotted waveguide array. The phenomenon is explained using grating lobe theory and linear near-field measurements. A technique to suppress the grating lobe is proposed.
Keywords :
antenna radiation patterns; microwave antennas; polarisation; grating lobe theory; high-level sidelobe; linear near-field measurements; lobe suppression; parallel-plate polariser; slotted waveguide array;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860253
