Title :
Luneberg lenses performance limitations due to fabrication process
Author_Institution :
Electron. Syst. & Technol. Div., TRW Antenna Products Center, Redondo Beach, CA, USA
Abstract :
Luneberg lenses are commonly fabricated from a number of constant dielectric concentric shells to approximate the continuous dielectric distribution of the Luneberg lens formula. This paper discusses the relationship between the number of shells and the aperture efficiency as well as the adverse effects that air gaps between layers can have on the lens gain.
Keywords :
aperture antennas; lens antennas; lenses; millimetre wave antennas; multibeam antennas; space vehicles; Luneberg lenses; air gaps; aperture efficiency; constant dielectric concentric shells; continuous dielectric distribution; fabrication process; lens gain; multi-beam antennas; performance limitations; spacecraft MM wave antenna systems; Air gaps; Apertures; Degradation; Dielectric constant; Dynamic range; Fabrication; Lenses; Manufacturing; Space vehicles; Wavelength measurement;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1997. IEEE., 1997 Digest
Conference_Location :
Montreal, Quebec, Canada
Print_ISBN :
0-7803-4178-3
DOI :
10.1109/APS.1997.631597
