Electronic device having a slot antenna

• US 10,133,462 B2
• Filed: 10/24/2016
• Issued: 11/20/2018
• Est. Priority Date: 06/20/2016
• Status: Active Grant

• Current Assignee: Lenovo PC International Limited (Lenovo Group Ltd.)
• Original Assignee: Lenovo Singapore Pte Limited (Lenovo Group Ltd.)
• Inventors: Nishioka, Yoshio
• Primary Examiner(s): Levi, Dameon E
• Assistant Examiner(s): LOTTER, DAVID E
• Application Number:
  US15/332,762
• Publication Number:
  US 20170365930A1
• Time in Patent Office: 757 Days
• CPC Class Codes: G06F 1/1616 with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
• CPC Class Codes: G06F 1/162 changing, e.g. reversing, the face orientation of the screen with a two degrees of freedom mechanism, e.g. for folding into tablet PC like position or orienting towards the direction opposite to the user to show to a second user
• CPC Class Codes: G06F 1/1658 related to the mounting of internal components, e.g. disc drive or any other functional module
• CPC Class Codes: G06F 2203/04803 Split screen, i.e. subdividing the display area or the window area into separate subareas
• CPC Class Codes: G06F 3/04845 for image manipulation, e.g. dragging, rotation, expansion or change of colour
• CPC Class Codes: G06F 3/0487 using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
• CPC Class Codes: G06F 3/14 Digital output to display device ; Cooperation and interconnection of the display device with other functional units
• CPC Class Codes: G06F 3/1454 involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
• CPC Class Codes: G09G 2340/12 Overlay of images, i.e. displayed pixel being the result of switching between the corresponding input pixels
• CPC Class Codes: G09G 2370/00 Aspects of data communication
• CPC Class Codes: G09G 5/38 with means for controlling the display position
• CPC Class Codes: H01Q 1/2258 used with computer equipment
• CPC Class Codes: H01Q 1/2266 disposed inside the computer
• CPC Class Codes: H01Q 13/10 Resonant slot antennas
• CPC Class Codes: H01Q 21/28 Combinations of substantially independent non-interacting antenna units or systems multiple beam H01Q25/00

Abstract

An electronic device having a slot antenna is disclosed. The electronic device includes a main unit chassis and a display chassis. The main unit chassis includes a base cover formed of a conductor, and a keyboard and a keyboard cover formed of a dielectric. The base cover includes a slot. The display chassis is connected to the main unit chassis through a hinge. The upper surface of the display chassis is covered by a display rear cover formed of a conductor. The lower surface of the display chassis is covered by a display unit and a bezel formed of a dielectric. A slot antenna is formed in a bezel area of the display rear cover. The slot of the base cover is located at a position that opposes a slot of the slot antenna when the display rear cover of the display chassis is overlapping with the main unit chassis.

Claims

1. An electronic device comprising:

a main unit chassis having a first surface and a second surface, wherein said first surface of said main unit chassis is covered by a base cover formed of a conductor, wherein said second surface of said main unit chassis is covered by a keyboard and a keyboard cover formed of a dielectric, wherein said base cover includes a slot;

a hinge;

a slot antenna; and

a display chassis having a first surface and a second surface, wherein said display chassis is connected to said main unit chassis via said hinge, wherein said first surface of said display chassis is covered by a display cover formed of a conductor, wherein said second surface of said display chassis is covered by a display unit and a bezel formed of a dielectric, wherein said display cover includes a slot at which said slot antenna is located, wherein said slot of said base cover is located at a position that opposes said slot of said display cover when said display cover of said display chassis overlaps with said base cover of said main unit chassis.

2. The electronic device of claim 1, wherein said display chassis includes a feeder antenna to excite said slot antenna.

3. The electronic device of claim 2, wherein said feeder antenna is a monopole antenna.

4. The electronic device of claim 2, wherein said feeder antenna is a dipole antenna.

5. The electronic device of claim 1, wherein

said base cover includes a second slot located adjacent to the same edge of said base cover as said slot in said base cover;

and

said display cover includes a second slot located adjacent to the same edge of said display cover as said slot in said display cover.

6. The electronic device of claim 1, wherein said slot in said display cover and said slot in said base cover have identical opening shapes.

7. The electronic device of claim 1, wherein an electrical length of said slot in said base rover is an integral multiple of ¼

of an operating wavelength of said slot antenna.

18. The electronic device of claim 1, wherein

said slot in said base cover is located adjacent to an edge of said main unit chassis opposite to an edge at which said hinge is located;

and

said slot in said display cover is located adjacent to an edge of said display chassis opposite to an edge at which said hinge is located.

19. The electronic device of claim 1, wherein said slot in said base cover is filled with a dielectric.

20. The electronic device of claim 1, Wherein said slot in said display cover is filled with a dielectric.

8. An electronic device comprising:

a main unit chassis includes a first conductive cover having a first slot;

a slot antenna; and

a display chassis connected to said main unit chassis via a hinge, wherein said display chassis includes a second conductive cover having a second slot provided at a position opposes said first slot when said main unit chassis and said display overlap each other, wherein said slot antenna is located at said second slot.

9. The electronic device of claim 8, wherein

said first slot is located adjacent to an edge of said main unit chassis opposite to an edge at which said hinge is located;

and

said second slot is located adjacent to an edge of said display chassis opposite to an edge at which said hinge is located.

10. The electronic device of claim 8, wherein

said first conductive cover is coupled to a keyboard;

and

said second conductive cover is coupled to a display.

11. The electronic device of claim 8, wherein said first slot is filled with a dielectric.

12. The electronic device of claim 8, wherein the opening shape of said first slot is identical to the opening shape of said second slot.

13. The electronic device of claim 8, wherein said second slot is filled with a dielectric.

14. The electronic device of claim 8, wherein said display chassis includes a feeder antenna to excite said slot antenna.

15. The electronic device of claim 14, wherein said feeder antenna is a monopole antenna.

16. The electronic device of claim 14, wherein said feeder antenna is a dipole antenna.

17. The electronic device of claim 8, wherein an electrical length of said first slot is an integral multiple of ¼

of an operating wavelength of said slot antenna.