Title :
Shaped lens antennas for multibeam and scanning applications
Author :
Lorenzo, M. Edita ; Vera, Maria ; Santalla, Verónica ; Pino, Antonio G.
Author_Institution :
ETSI Telecomunicacion, Vigo Univ., Spain
Abstract :
Lens antennas can be used in multibeam and scanning applications, but non-focal feeding can cause serious degradation in the performance of these systems, unless the phase error at the aperture is minimized. The solution proposed is shaping the surface of the dielectric lens. The results show how the phase error decreases and the antenna performance for large scan angle of the shaped lens is better than that of the non-shaped one
Keywords :
lens antennas; multibeam antennas; scanning antennas; antenna performance; aperture; dielectric lens; large scan angle; multibeam applications; non-focal feeding; performance degradation; phase error; scanning applications; shaped lens antennas; software tool; Antenna feeds; Aperture antennas; Degradation; Dielectrics; Lenses; Optical surface waves; Physical optics; Root mean square; Telecommunications; Vectors;
Conference_Titel :
Electrotechnical Conference, 1994. Proceedings., 7th Mediterranean
Conference_Location :
Antalya
Print_ISBN :
0-7803-1772-6
DOI :
10.1109/MELCON.1994.381067
