Deformable antenna

Abstract

A deformable antenna includes a flexible circuit board antenna. The flexible circuit board antenna comprises a flexible circuit board, and at least one side of the flexible circuit board has a radiating line and an electrode layer, the radiating line and the electrode layer being electrically connected. The flexible circuit board antenna is bent to form a deformable antenna. Depending on the bending shape of the deformable antenna, it can be used in different types of electronic devices.

Claims

1. A deformable antenna, comprising: a flexible board antenna, which includes a flexible board, wherein a radiating line and at least one electrode layer are provided on at least one side surface of the flexible board, the radiating line and the electrode layer being electrically connected; wherein, The flexible board antenna is bent to form a modified antenna.

2. The deformable antenna as described in claim 1, wherein, Two signal transmission lines are electrically connected to each end of the radiation line, and these two signal transmission lines are electrically connected to the electrode layer on one side of the flexible circuit board.

3. The deformable antenna as described in claim 1, wherein, The radiation circuit is a spiral design, which consists of a plurality of straight radiation layers electrically connected to a plurality of oblique radiation layers. The straight radiation layers are located on one side of the flexible board, and the oblique radiation layers are located on the other side of the flexible board. The oblique radiation layers pass through the flexible board and are electrically connected to the straight radiation layers.

4. The deformable antenna as described in claim 1, wherein, The radial line is composed of rectangular blocks and lines.

5. The deformable antenna as described in claim 4, wherein, The radiation circuit includes at least two periodic patterned circuits and a side radiation layer. The periodic patterned circuit includes a first radiation line, a second radiation line, and a third radiation line electrically connected to the first radiation line and the second radiation line.

6. The deformable antenna as described in claim 5, wherein, The other side of the flexible circuit board has a second radiating line, which includes a first radiating layer and a second radiating layer, wherein the first radiating layer is electrically connected to the electrode layer.

7. The deformable antenna as described in claim 1, wherein, This flexible board antenna is a flexible composite circuit board.

8. The deformable antenna as described in claim 7, wherein, This flexible composite circuit board uses a material with a dielectric constant ranging from 3 to 50.

9. The deformable antenna as described in claim 1, wherein, The thickness of the flexible board antenna is no more than 0.5 mm.

10. The deformable antenna as described in claim 1, wherein, The modified antenna can be L-shaped, C-shaped, Z-shaped, strip-shaped, or sheet-shaped.

11. The deformable antenna as described in claim 10, wherein, The modified antenna is a strip or sheet that can be bent into a semi-circular arc or an arch.

12. The deformable antenna as described in claim 1, wherein, The flexible board antenna has a rigid board on one side.

13. The deformable antenna as described in claim 12, wherein, The rigid plate is made of a composite material of polypropylene, fiberglass cloth and epoxy resin or steel sheet.

14. The deformable antenna as described in claim 12, wherein, The thickness of the rigid board body is between 0.02 and 3 mm.

15. The deformable antenna as described in claim 1, wherein, When the flexible board antenna is electrically connected to the antenna main board, it is electrically fixed to the signal feed line and solder joint of the antenna main board through the electrode layer of the flexible board antenna.

16. The deformable antenna as described in claim 15, wherein, After the flexible board antenna is electrically fixed to the antenna main board, there is a specific distance between the radiating line on the flexible board antenna and the ground layer on the antenna main board.

17. The deformable antenna as described in claim 16, wherein, This specific distance must be at least 2mm.

18. The deformable antenna as described in claim 1, wherein, The flexible printed circuit board antenna can be electrically connected to the antenna main board and installed inside the stylus.

19. A deformable antenna, comprising: a rigid plate; and a flexible plate antenna, comprising: a first flexible plate, a first radiating line, a second flexible plate, and a second radiating line; the first flexible plate is disposed on one side of the rigid plate, the first radiating line is disposed on one side of the first flexible plate, the second flexible plate is disposed on the other side of the rigid plate, the second radiating line is disposed on one side of the second flexible plate, and a two-layer flexible plate antenna is formed on the two sides of the rigid plate; wherein, The flexible board antenna is bent into a deformable body antenna by electrically connecting the first radiating line or the second radiating line to at least one electrode layer.

20. The deformable antenna as described in claim 19, wherein, This flexible board antenna is a flexible composite circuit board.

21. The deformable antenna as described in claim 20, wherein, This flexible composite circuit board uses a material with a dielectric constant ranging from 3 to 50.

22. The deformable antenna as described in claim 19, wherein, The thickness of the flexible board antenna is no more than 0.5 mm.

23. The deformable antenna as described in claim 19, wherein, The rigid plate is made of a composite material of polypropylene, fiberglass cloth and epoxy resin or steel sheet.

24. The deformable antenna as described in claim 19, wherein, The thickness of the rigid board body is between 0.02 and 3 mm.

25. The deformable antenna as described in claim 19, wherein, After the flexible board antenna is electrically fixed to the antenna main board, there is a specific distance between the radiating line on the flexible board antenna and the ground layer on the antenna main board.

26. The deformable antenna as described in claim 25, wherein, This specific distance must be at least 2mm.

Images