Radome-lens EHF antenna development

Details Radome-lens EHF antenna development Radome-lens EHF antenna development

1987-12-07

1989-10-03

Hille, Rolf

Communications: radio wave antennas

Antennas

With spaced or external radio wave refractor

343872, 343910, 343911R, H01Q 1508, H01Q 142

Patent

active

048720194

ABSTRACT:
A radome-lens comprises a shell of dielectric material having an outer surface in the form of a small circle defined by a sphere and a plane intersecting the sphere, an opening at one end of the shell for reception of an antenna therein, the surface having a central axis which is normal to the plane and extends through the center of the sphere, and an inner surface having a spherical portion centered at a second center disposed along the axis adjacent the first mentioned center but spaced toward the outer surface. When so constructed, the invention functions as a radome in the sense that it houses and protects an antenna in the usual manner and also functions as a lens in the sense that it amplifies the scan angle of the antenna from an angle of less than 90.degree. to 90.degree. or more.

REFERENCES:
patent: 3430245 (1969-02-01), Wolcott
patent: 3787872 (1974-01-01), Kauffman
patent: 3886561 (1975-05-01), Beyer
patent: 4156878 (1979-05-01), Dion
patent: 4220957 (1980-09-01), Britt
patent: 4321604 (1982-03-01), Ajioka
patent: 4769646 (1988-09-01), Raber et al.
Dielectric Bifocal Lenses, Brown R., Institute of Radio Engineers Convention, vol. 4, Pt 1-5, 1956.

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