Patent ID: 9653792
Date: 2017-05-16
CPC Classifications: H01Q

Claim:
1. An antenna for use in connection with a transparency that is mounted in an electrically conductive frame, said antenna comprising: at least one transparent ply having oppositely disposed surfaces that are defined by an outer edge that is located between said oppositely disposed surfaces; an interlayer having oppositely disposed surfaces that are defined by an outer edge located between said oppositely disposed surfaces, said interlayer being oriented such that one surface of said interlayer faces one surface of said transparent ply; an antenna conductor that is located in said one surface of said interlayer that faces said one surface of said at least one transparent ply; a conductive antenna feed line that is located on the surface of said transparent ply that is oppositely disposed from the surface of said transparent ply that faces said interlayer, at least a portion of said antenna feed line being aligned parallel to said antenna conductor and in proximity to said antenna conductor such that said parallel portions of said antenna conductor and said antenna feed line that are coextensive with each other cooperate with the electrically conductive frame to form a coupled transmission line filter, said coupled transmission line filter having an image impedance and said conductive antenna feed line having a width that is established in accordance with the width of the portion of said conductive antenna feed line that is coextensive with said antenna conductor to match said image impedance of the coupled transmission line filter.