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:
Dec. 18, 1979
Filed:
Jul. 05, 1977
Clarence D Lunden, Federal Way, WA (US);
The Boeing Company, Seattle, WA (US);
Abstract
A low reflectivity radome includes an enclosure wall made of foamed plastic material defining a dielectric constant of about 1.08. Stiffening ribs made from reinforced glass fibers with a dielectric constant of about 4.0 are arranged in an orthogonal manner along planes normal to a tangent to the air-side surface of the radome and at least partially embedded in the enclosure wall for compressive strengthening thereof. Different orthogonal arrangements include the ribs being totally embedded within the enclosure wall, the ribs projecting to uniform or different distances from the inside surface of the enclosure wall or the ribs are arranged in closely, spaced-apart pairs and project from the inside surface of the enclosure wall. When the ribs are totally embedded in the formed plastic material, the distance between the ends of the ribs and each face surface of the enclosure is selected so that incident microwaves undergo identical phase shifts for all parallel paths through the enclosure wall. The formed plastic material of the enclosure is coated on the air-side surface with matching conductive paint. On the inside surface, quarter-wave ribs are formed within the dielectric material for interface matching.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile