Multi-spectral seeker antenna

Communications: radio wave antennas – Antennas – Combined with diverse-type art device

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

342 53, 343725, 343781CA, H01Q 21280, G01S 13000

Patent

active

053070771

ABSTRACT:
A multi-spectral seeker system for detecting radiation in the infrared (IR) band and a plurality of radio frequency (RF) bands suitable for use in a guided missile is disclosed. The IR and RF seekers are coaxially integrated on a single gimbaled platform and share a common aperture without significant performance degradation. In the preferred embodiment, the IR seeker uses a Cassegrainian reflector assembly with surfaces reflective to IR but transparent to RF signals. The first RF seeker uses a resonant dichroic reflector antenna which is transparent to RF signals at frequencies no closer than 0.5 octaves from the dichroic reflector system operating frequency. The second RF seeker may use any suitable RF antenna system although a planar-array of multi-mode spiral antennas or a standard flat plate slotted array are preferred. The second RF seeker may operate in an active, semi-active, or passive mode. The IR seeker means and both RF seeker means together provide coaxial seeking in a single aperture covering three frequency bands without significant loss of performance in the RF antenna and IR sensor. The material on which the parabolic reflector is formed is tapered in thickness as a function of radius to eliminate phase delays introduced by the curvature as seen by the second RF seeker.

REFERENCES:
patent: 2972743 (1961-02-01), Svensson et al.
patent: 3114149 (1963-12-01), Jessen, Jr.
patent: 3165749 (1965-01-01), Cushner
patent: 3394378 (1968-07-01), Williams et al.
patent: 3701158 (1972-10-01), Johnson
patent: 3911433 (1975-10-01), Redman
patent: 3924233 (1975-12-01), Nastronero et al.
patent: 3924239 (1975-12-01), Fletcher et al.
patent: 4017865 (1977-04-01), Woodward
patent: 4160254 (1979-07-01), Wise
patent: 4264907 (1981-04-01), Durand, Jr. et al.
patent: 4282527 (1981-08-01), Winderman et al.
patent: 4477814 (1984-10-01), Brumbaugh et al.
patent: 4652885 (1987-03-01), Saffold et al.
patent: 4701765 (1987-10-01), Arduini et al.
patent: 4866454 (1989-09-01), Droessler et al.
patent: 5182564 (1993-01-01), Burkett et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Multi-spectral seeker antenna does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multi-spectral seeker antenna, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-spectral seeker antenna will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1714456

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.