Communications: radio wave antennas – Antennas – Combined with diverse-type art device
Patent
1991-12-11
1994-03-29
Hille, Rolf
Communications: radio wave antennas
Antennas
Combined with diverse-type art device
342 53, 343725, H01Q 21280, G01S 13870
Patent
active
052989097
ABSTRACT:
A coaxial multiple-mode antenna system (10) is disclosed, including a coaxial input section (14) for coaxially collecting, for example, MMW and IR electromagnetic radiation. The IR radiation is focused to a point at the input section's focal plane, while the MMW beam has a relatively large width in this plane. An interface section (16) includes an IR section (18) and MMW section (20) that allow the two beams to be separately processed with a minimum of losses. In that regard, the MMW section includes a lens (42), having an incident surface, the center of which is positioned at the focal plane. An optical fiber (46) extends axially through the lens and has an incident end that is aligned with the incident surface of the lens. The lens quasi-optically transmits the MMW beam to a detection circuit (26), while the optical fiber transmits the IR beam to detection circuit (22). Because the optical fiber receives the IR beam before it is processed by the lens, IR losses are limited. Further, the small diameter of the optical fiber and its axial alignment in the lens cause minimal disruption of the MMW beam.
REFERENCES:
patent: 2895127 (1959-07-01), Padgett
patent: 2972743 (1961-02-01), Svensson et al.
patent: 3114149 (1963-12-01), Jessen, Jr.
patent: 3165749 (1965-01-01), Cushner
patent: 3763493 (1973-10-01), Shimada et al.
patent: 4151968 (1979-05-01), Lamelot
patent: 4282527 (1981-08-01), Winderman et al.
patent: 4477814 (1984-10-01), Brumbaugh et al.
patent: 4636797 (1987-01-01), Saffold et al.
patent: 4652885 (1987-03-01), Saffold et al.
patent: 5041840 (1991-08-01), Cipolla et al.
patent: 5089828 (1992-02-01), Moss
Peters Steven J.
Vacanti David C.
Brown Peter Toby
Hille Rolf
The Boeing Company
LandOfFree
Coaxial multiple-mode antenna system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coaxial multiple-mode antenna system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coaxial multiple-mode antenna system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-795249