Patent ID: 7656357
Filing Date: 2010-02-02
Classification: H01Q

Abstract:
1. A transparent antenna for a vehicle, comprising a sheet-like transparent substrate with an electrical isolation and an antenna pattern planarly formed on a surface of the transparent substrate, wherein an electrically conductive section of said antenna pattern is constructed from an electrically conductive thin film of a mesh structure and outlines of each mesh are constructed from extra fine bands having substantially equal width and the width of each of the extra fine bands is 30 mm or less and the light transmittance of said antenna pattern formation section is 70% or higher, wherein said mesh structure is constructed from planar meshes regularly continuous on a plane with the same shape and size and a distinguishing pattern for distinguishing a part of said antenna pattern is formed by adding a pattern linearly in a plurality of meshes or in a bands-like state to a plurality of mesh outlines in a part of said antenna pattern and thereby decreasing the light quantity passing through these meshes to be less than the light quantity passing through said antenna pattern.