Communications: radio wave antennas – Antennas – With vehicle
Patent
1993-03-08
1994-08-02
Hajec, Donald
Communications: radio wave antennas
Antennas
With vehicle
343704, H01Q 132
Patent
active
053349890
ABSTRACT:
A known first antenna is arranged in a space of a rear window glass above a defogging heater element and constituted by horizontal and vertical conductive strips. In accordance with the present invention, a second antenna is provided which consists of a feed point and a pair of first and second elements connected to the feed point and arranged in a space of the window glass around the heater element. The first element has a vertical conductive strip arranged in an area of the space between the heater element and a lateral edge of the window glass. The first element further has in an area of the space above the first antenna or in a space defined between the upper and lower ends of the first antenna, at least one horizontal conductive strip or a T-shaped or inverted T-shaped conductive strip assembly having a longer horizontal strip portion and a shorter vertical strip portion, or at least two horizontal conductive strips connected at opposite ends by vertical conductive strips to constitute a rectangular loop, or at least two horizontal conductive strips connected at one ends by a vertical conductive strip to constitute a -shape. The second element is arranged in an area of the space under the heater element and consists of a horizontal conductive strip and a vertical conductive strip.
REFERENCES:
patent: 5049892 (1991-09-01), Lindenmeier
Nagayama Yoji
Tadokoro Shingo
Tsukada Tokio
Central Glass Company
Hajec Donald
Le Hoang-anh
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