The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 26, 2019
Filed:
Jun. 02, 1976
Pietro Ventresca, Littleton, MA (US);
Francis J. O'hara, Bedford, MA (US);
Chester J. Hunt, Melrose, MA (US);
Dominic V. Restagno, Waltham, MA (US);
Kenneth R. Turner, Atkinson, NH (US);
Pietro Ventresca, Littleton, MA (US);
Francis J. O'Hara, Bedford, MA (US);
Chester J. Hunt, Melrose, MA (US);
Dominic V. Restagno, Waltham, MA (US);
Kenneth R. Turner, Atkinson, NH (US);
Raytheon Company, Waltham, MA (US);
Abstract
A dual mode R.F./IR seeker suitable for use in an anti-radiation missile is disclosed. The infrared sensor is responsive to radiation within the 4.0 to 4.8 micron band and the radio frequency sensor is responsive to radio frequency signals within a 6.5 to 16.5 GHz band. The infrared sensor comprises a folded Cassegrainian telescope arrangement, including a primary mirror which is transparent to radio frequency energy. The radio frequency sensor comprises an annular array of orthogonally disposed stripline flared notch radiating elements. A broadband microwave receiver, fabricated in a multilayered stripline package, is provided for forming radio frequency monopulse sum (Σ) and difference (Δ) signals and for converting such radio frequency monopulse signals to suitable intermediate frequency signals for processing in an I.F. receiver. The infrared and radio frequency sensors share a common aperture and optical axis.