Vehicle side window glass antenna for radio broadcast waves

• US 5,905,470 A
• Filed: 12/19/1997
• Issued: 05/18/1999
• Est. Priority Date: 12/20/1996
• Status: Expired due to Fees

• Current Assignee: Central Glass Company Limited
• Original Assignee: Central Glass Company Limited
• Inventors: Fujii, Hiroyuki, Maegawa, Mitsuhisa
• Primary Examiner(s): LE, HOANGANH T
• Application Number:
  US08/995,399
• Time in Patent Office: 515 Days
• Field of Search: 343/713, 343/704, 343/711, 343/712
• US Class Current: 343/713
• CPC Class Codes: H01Q 1/12 Supports; Mounting means
• CPC Class Codes: H01Q 1/1271 for mounting on windscreens

Abstract

A glass antenna attached to a vehicle side window glass for receiving radio waves such as FM radio broadcast waves and AM radio broadcast waves is provided. The glass antenna comprises a feed point disposed adjacent one of the lateral edges of the window glass, a first vertical element extending upwardly from the feed point along one of the lateral edges to a place adjacent the upper edge of the window glass, a first horizontal element extending from the first vertical element along the upper edge to a nearly central portion of the window glass, a second vertical element extending from the first horizontal element through the nearly central portion to a place adjacent the lower edge of the window glass, a second horizontal element extending from the second vertical element along the lower edge to a place adjacent the other of the lateral edges, and a third vertical element extending upwardly from the second horizontal element along the other of the lateral edges of the window glass.

Claims

1. A glass antenna attached to a vehicle side window glass for receiving radio waves, the window glass having a pair of vertically opposed upper and lower edges and a pair of horizontally opposed lateral edges, the glass antenna comprising:

a feed point disposed adjacent one of the lateral edges of the window glass;

a first vertical element extending upwardly from said feed point along one of the lateral edges to a place adjacent the upper edge of the window glass;

a first horizontal element extending from said first vertical element along the upper edge to a nearly central portion of the window glass;

a second vertical element extending from said first horizontal element through said nearly central portion to a place adjacent the lower edge of the window glass;

a second horizontal element extending from said second vertical element along said lower edge to a place adjacent the other of the lateral edges; and

a third vertical element extending upwardly from said second horizontal element along the other of the lateral edges.

2. A glass antenna according to claim 1, further comprising a third horizontal element having a bent shape and consisting of a pair of horizontal conductive strips and a vertical conductive strip.

3. A glass antenna according to claim 2, wherein said third horizontal element is provided between said first horizontal element and said second vertical element.

4. A glass antenna according to claim 1, wherein all of said horizontal and vertical elements are constituted by a single conductive strip.

5. A glass antenna according to claim 1, wherein at least part of said horizontal and vertical conductive strips is constituted by a plurality of conductive strips.

6. A glass antenna according to claim 1, wherein all of said horizontal and vertical conductive strips are constituted by a plurality of conductive strips, respectively.

7. A glass antenna attached to a vehicle side window glass for receiving radio waves, the window glass having a pair of vertically opposed upper and lower edges and a pair of horizontally opposed lateral edges, the glass antenna comprising:

a feed point disposed at an upper corner of the window glass;

a first horizontal element extending from said feed point along the upper edge to a nearly central portion of the window glass;

a first vertical element extending from said first horizontal element through said nearly central portion to a place adjacent the lower edge of the window glass;

a second horizontal element extending from said first vertical element along the lower edge to a place adjacent the other of the lateral edges; and

a second vertical element extending from said second horizontal element along the other of the lateral edges.

8. A glass antenna according to claim 7, further comprising a third vertical element having a bent shape and consisting of a pair of vertical conductive strips and a horizontal conductive strip.

9. A glass antenna according to claim 8, wherein said third vertical element is provided between said feed point and said first horizontal element.

10. A glass antenna according to claim 7, wherein all of said horizontal and vertical elements are constituted by a single conductive strip.

11. A glass antenna according to claim 7, wherein at least part of said horizontal and vertical elements is constituted by a plurality of conductive strips.

12. A glass antenna according to claim 7, wherein all of said horizontal and vertical elements are constituted by a plurality of conductive strips, respectively.

13. A glass antenna attached to a vehicle side window glass for receiving radio waves, the window glass having a pair of vertically opposed upper and lower edges and a pair of horizontally opposed lateral edges, the glass antenna comprising:

a feed point disposed adjacent one of the lateral edges of the window glass;

a first vertical element extending downwardly from said feed point along one of the lateral edges to a place adjacent the lower edge of the window glass;

a first horizontal element extending from said first vertical element along the lower edge to a nearly central portion of the window glass;

a second vertical element extending upwardly from said first horizontal element through the nearly central portion to a place adjacent the upper edge of the window glass;

a second horizontal element extending from said second vertical element along the upper edge to a place adjacent the other of the lateral edges; and

a third vertical element extending downwardly from said second horizontal element along the other of the lateral edges.

14. A glass antenna according to claim 13, wherein at least part of said horizontal and vertical elements is constituted by a plurality of conductive strips.

15. A glass antenna according to claim 13, further comprising a third horizontal strip extending from said second vertical strip along the lower edge of the window glass to the nearly central portion of the window glass.

16. A glass antenna attached to a vehicle side window glass for receiving radio waves, the window glass having a pair of vertically opposed upper and lower edges and a pair of horizontally opposed lateral edges, the glass antenna comprising:

a feed point disposed at a lower corner of the window glass;

a first horizontal element extending from said feed point along the lower edge to a nearly central portion of the window glass;

a first vertical element extending upwardly from said first horizontal element through the nearly central portion to a place adjacent the upper edge of the window glass;

a second horizontal element extending from said first vertical element along the upper edge to a place adjacent the other of the lateral edges; and

a second vertical element extending downwardly from said second horizontal element along the other of the lateral edges.

17. A glass antenna according to claim 16, wherein at least part of said horizontal and vertical elements is constituted by a plurality of conductive strips.

18. A glass antenna according to claim 16, further comprising a third horizontal strip extending from said second vertical strip along the lower edge of the window glass to the nearly central portion of the window glass.