Transparent thin film antenna
First Claim
1. An antenna comprising:
- a surface formed of a transparent thin-film conducting material, the thin film-conducting material containing an aperture formed by edges of a slot;
feed points located on the surface for operating the antenna at a desired frequency; and
electrically conducting material overlaying and on a portion of the surface in contact with the slot edges, whereby surface resistivity of such portion of the surface is decreased to provide improved antenna efficiency.
12 Assignments
0 Petitions
Accused Products
Abstract
A method for improving the efficiency of antennas having transparent thin-film conductive surfaces, and antennas improved by the method are disclosed. For a selected frequency of antenna operation, values for surface current density in areas distributed over the surface of the thin-film are determined. Regions of the surface containing areas having concentrated current flow are identified based upon the determined values of current density. Antenna efficiency is improved by increasing conductivity in areas of the thin-film surface found to have concentrated current flow. The method enables the improvement of the efficiency of antennas having transparent thin-film conducting surfaces, without unnecessarily obstructing the optical view through the thin-film surfaces of the antennas.
44 Citations
13 Claims
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1. An antenna comprising:
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a surface formed of a transparent thin-film conducting material, the thin film-conducting material containing an aperture formed by edges of a slot; feed points located on the surface for operating the antenna at a desired frequency; and electrically conducting material overlaying and on a portion of the surface in contact with the slot edges, whereby surface resistivity of such portion of the surface is decreased to provide improved antenna efficiency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An antenna comprising:
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a surface formed of a transparent thin-film conducting material, the thin film-conducting material containing an aperture formed by edges of a slot; feed points for coupling electromagnetic energy into and out of the antenna; electrically conducting material overlaying and on a portion of the surface in contact with the slot edges, whereby surface conductivity of such portion of the surface is increased, thereby reducing ohmic loss to provide improved antenna efficiency. - View Dependent Claims (13)
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Specification