Glass antenna for automotive vehicles

An antenna attached to a vehicle window glass for transmitting and receiving ultrashort waves, the window glass being provided with a defogging heater element and the antenna being disposed in a space between the defogging heater element and a peripheral edge of the window glass, the antenna comprising:

• a first element including a vertical conductive strip and a horizontal conductive strip connected to a lower end of said vertical conductive strip;
• a second element including a first vertical conductive strip, first and second horizontal conductive strips, the first horizontal conductive strip of said second element being connected to an end of said first vertical conductive strip of said second element, and a second vertical conductive strip connecting said first and second horizontal conductive strips of said second element, said horizontal conductive strips of said second element being disposed adjacently above and under said horizontal conductive strip of said first element, respectively, so as to wrap around, together with said second vertical conductive strip, an end portion of said first element;
• said horizontal conductive strip of said first element and said first horizontal conductive strip of said second element having feed point portions, respectively;
• and
• a coaxial cable having an inner conductor and an outer conductor one of which is connected to said feed point portion of said first element and the other of which is connected to said feed point portion of said second element.

An antenna attached to a vehicle rear window glass, comprising:

• a first element including a first horizontal conductive strip having a feed point portion, a first vertical conductive strip connected to an end of said first horizontal conductive strip, a second horizontal conductive strip connected at an end to said first vertical conductive strip and extending away therefrom to have another end, a second vertical conductive strip connected to said another end of said second horizontal conductive strip, and a third vertical conductive strip located adjacent to said second vertical conductive strip and connected to said first horizontal conductive strip;
• a second element including a horizontal conductive strip and a vertical conductive strip connected to an end of said horizontal conductive strip of said second element, said horizontal conductive strip of said second element having a feed point portion located adjacent to said feed point portion of said first horizontal conductive strip of said first element;
• and
• a coaxial cable having an inner conductor connected to one of said feed point portions of said first and second elements and an outer conductor connected to the other of said feed point portions of said first and second elements.

An antenna attached to a vehicle rear window glass, comprising:

• a first element including a first horizontal conductive strip having a feed point portion, a first vertical conductive strip connected to an end portion of said first horizontal conductive strip, a second horizontal conductive strip connected at an end to said first vertical conductive strip and extending away therefrom to have another end, a second vertical conductive strip connected at an end to said another end of said second horizontal conductive strip and extending away therefrom to have another end adjacent said first horizontal conductive strip, and a third horizontal conductive strip connected to said another end of said second vertical conductive strip and extending away therefrom toward said first vertical conductive strip;
• a second element consisting of a vertical conductive strip and a horizontal conductive strip connected to a lower end of said vertical conductive strip of said second element, said horizontal conductive strip of said second element having a feed point portion located adjacent to said feed point portion of said first horizontal conductive strip of said first element;
• and
• a coaxial cable having an inner conductor connected to one of said feed point portions of said first and second elements and an outer conductor connected to the other of said feed point portions of said first and second elements.