Communications: radio wave antennas – Antennas – Combined with diverse-type art device
Patent
1992-05-18
1994-07-05
Hille, Rolf
Communications: radio wave antennas
Antennas
Combined with diverse-type art device
343725, 343781CA, 342 53, H01Q 21280, H01Q 19190, H01Q 15140, G01S 1300
Patent
active
053271491
ABSTRACT:
A dual-mode, radio frequency, optical-wavelength detector apparatus includes RF-transparent optical elements adapted to focusing optical energy in a wavelength range including ultraviolet through infrared wavelengths, on an optical detector, and an RF antenna located behind the optical elements. One embodiment of the apparatus employs a Cassegrain infrared optical telescope system having a concave primary mirror, the front surface of which has applied thereto multiple layers of dielectric material comprising an interference filter reflective in a band of infrared wavelengths, and transmissive to radio frequency energy. A convex secondary mirror having a similar reflective coating is so located as to reflect infrared energy backwards through a central coaxial perforation through the primary mirror onto an infrared detector. The apparatus includes a planar RF antenna rearward of the primary mirror, which antenna utilizes the full aperture of the infrared optical system for the reception and transmission of RF energy.
REFERENCES:
patent: 4035065 (1977-07-01), Fletcher et al.
patent: 4477814 (1984-10-01), Brumbaugh et al.
patent: 4698638 (1987-10-01), Branigan et al.
patent: 4814785 (1989-03-01), Wu
patent: 4866454 (1989-09-01), Droessler et al.
patent: 5019768 (1991-05-01), Criswell et al.
patent: 5182564 (1993-01-01), Burkett et al.
Translation of Japan Kokai Publication #61-0178683 (Aug. 1986) to Kitajima, 6 pages.
Brown Charles D.
Brown Peter Toby
Denson-Low Wanda K.
Heald Randall M.
Hille Rolf
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