Omnidirectional electromagnetic lens

Details Omnidirectional electromagnetic lens Omnidirectional electromagnetic lens

1985-05-03

1987-07-21

Nussbaum, Marvin L.

Communications: radio wave antennas

Antennas

With spaced or external radio wave refractor

343911R, H01Q 1502, H01Q 1523

Patent

active

046821791

ABSTRACT:
An electromagnetic lens formed of a refractive material with a reflective rface. The lens is a body of revolution having an upper parabolic reflective surface and spherical side and bottom surfaces. Incoming radiation is refracted at one spherical surface, reflects from the reflective surface, exits and is refracted at the other spherical surface. The radiation may be directed onto an array of electromagnetic detectors. Such an array may consist of concentric circles of detectors, such that a particular detector is illuminated by incoming radiation of a particular azimuth and elevation.

REFERENCES:
patent: 2705753 (1955-04-01), Jaffe
patent: 3255451 (1966-06-01), Wolcott
patent: 4148040 (1979-04-01), Lunden et al.

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