| US 7,545,333 B2 | ||
| Multiple-layer patch antenna | ||
| Qian Li, Ann Arbor, Mich. (US); and Wladimiro Villarroel, Worthington, Ohio (US) | ||
| Assigned to AGC Automotive Americas R&D, Ypsilanti, Mich. (US) | ||
| Filed on Mar. 16, 2006, as Appl. No. 11/377,752. | ||
| Prior Publication US 2007/0216589 A1, Sep. 20, 2007 | ||
| Int. Cl. H01Q 1/32 (2006.01) | ||
| U.S. Cl. 343—713 | 30 Claims |
| 1. A window having an integrated antenna, said window comprising:
a nonconductive pane;
a first radiating layer disposed on said nonconductive pane and defining at least one perturbation feature;
a second radiating layer disposed substantially parallel to said first radiating layer, non-planar with said first radiating
layer, and apart from said first radiating layer and defining at least one perturbation feature;
a feed line layer disposed substantially parallel to said radiating layers, apart from said radiating layers, and between
said radiating layers for connection of a single transmission line and for electromagnetically connecting said radiating layers
to the transmission line;
a first dielectric layer defining at least one side and sandwiched between said first radiating layer and said feed line layer;
and
a second dielectric layer defining at least one side and sandwiched between said feed line layer and said second radiating
layer;
wherein said feed line layer is further defined as a coplanar wave guide defining a slot extending thereinto and dividing
said feed line layer into a first region and a second region; and
wherein said feed line layer extends past said sides of said dielectric layers for allowing electrical connection of a transmission
line to both of said regions of said feed line layer.
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