On glass shorted monopole antenna design

A window of a vehicle, comprising:

• a glass surface;
• a metal frame around the glass surface;
• a set of defroster wires in the glass surface, wherein a top wire of the set of defroster wires is separated from a top edge of the metal frame by an antenna region;
• an antenna disposed in the antenna region, the antenna having a first end and a second end opposite the first end;
• a feed line that connects to the first end at a horizontal cover line of the metal frame;
• and
• a ground line that electrically couples the second end of the antenna to the metal frame, wherein the ground line extends horizontally from the second end of the antenna to a vertical edge of the metal frame.

A vehicle, comprising:

• a window of the vehicle having a glass surface;
• a metal frame around a perimeter of the window, the metal frame defining at least a horizontal cover line and a vertical cover line, wherein the metal frame is separated from the glass surface by a separation gap;
• a set of defroster wires in the glass surface, wherein a top wire of the set of defroster wires is separated from a top edge of the metal frame by an antenna region;
• an antenna disposed on the glass surface in the antenna region, the antenna having a first end and a second end opposite the first end;
• a feed line that connects to the first end of the antenna at the horizontal cover line;
• and
• a ground line that electrically couples the second end of the antenna to the metal frame, wherein the ground line extends horizontally from the second end of the antenna to a vertical edge of the metal frame.