Optical collimator

Details Optical collimator Optical collimator

1985-11-27

1990-12-11

LaRoche, Eugene R.

Communications: radio wave antennas

Antennas

With spaced or external radio wave refractor

343755, 343781CA, H01Q 1906

Patent

active

049774077

ABSTRACT:
An antenna adapted for millimeter wave applications has a dielectric lens with metalized reflective surfaces and uncoated refractive surfaces. A subreflector and polarization grating are provided on the central portion of a refractive surface.

REFERENCES:
patent: 2668869 (1954-02-01), Iams
patent: 3195137 (1965-07-01), Jakes, Jr.
patent: 3281850 (1966-10-01), Hannan
patent: 3287728 (1966-11-01), Atlas
patent: 3340535 (1967-09-01), Damonte et al.
patent: 3771160 (1973-11-01), Laverick
patent: 3820116 (1974-06-01), Carlsson et al.
patent: 4148040 (1979-04-01), Lunden et al.
patent: 4188632 (1980-02-01), Knox

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