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:
Jul. 16, 2019
Filed:
Oct. 24, 2014
Nanyang Technological University, Singapore, SG;
Gamesa Innovation & Technology, S.l., Sarriguren (Navarra), ES;
Pushkar Dilip Kanhere, Singapore, SG;
Weng Chye Jeffrey Ho, Singapore, SG;
Xinghua Wu, Singapore, SG;
Eng Kee Chua, Singapore, SG;
Srikanth Narasimalu, Singapore, SG;
Kye Yak See, Singapore, SG;
Zhong Chen, Singapore, SG;
Jose Luis González Moral, Sarriguren, ES;
Rosario Martínez Ortigosa, Sarriguren, ES;
NANYANG TECHNOLOGICAL UNIVERSITY, Singapore, SG;
SIEMENS GAMESA RENEWABLE ENERGY INNOVATION & TECHNOLOGY, S.L., Sarriguren (Navarra), ES;
Abstract
The invention provides a composite laminate comprising an outer, an intermediate and an inner section comprising, respectively, first layers of composite material and one or more functional layers having a printed circuit for absorbing the electromagnetic radiation incident on the composite laminate; second layers of composite material; a conducting layer contiguous to the intermediate section and third layers of composite material. The values of the resistivity of the functional layer and the thickness of the intermediate section are comprised in predefined ranges for the attenuation of the reflection of electromagnetic radiation of the composite laminate in the S or X bands up to a peak of −20 dB. The invention also refers to manufacturing methods of the composite laminate () and to wind turbine blades including the composite laminate.