MULTI-BAND ANTENNAS

• US 20180040957A1
• Filed: 04/30/2015
• Published: 02/08/2018
• Est. Priority Date: 04/30/2015
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Company (HP Inc.)
• Inventors: CHEN, JU-HUNG
• Granted Patent: US 10,381,727 B2
• Time in Patent Office: Days
• CPC Class Codes: H01Q 1/2266 disposed inside the computer
• CPC Class Codes: H01Q 1/241 used in mobile communications, e.g. GSM H01Q1/247, H01Q1/248 take precedence
• CPC Class Codes: H01Q 1/38 formed by a conductive layer on an insulating support patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface H01Q15/142
• CPC Class Codes: H01Q 13/10 Resonant slot antennas
• CPC Class Codes: H01Q 5/371 Branching current paths

Abstract

An example discloses a slot antenna. The slot antenna includes: a cover including a slot; and an antenna PCB including a feeding line across the slot. The antenna PCB is coupled with the cover through a positive feeding terminal of the feeding line. The slot is closed at its one width side within the cover. A length of the feeding line is larger than a width of the slot.

Claims

1. A slot antenna comprising:

a cover including a slot; and

an antenna PCB including a feeding line across the slot;

wherein the antenna PCB is coupled with the cover through a positive feeding terminal of the feeding line;

wherein the slot is closed at its one width side within the cover; and

wherein a length of the feeding line is larger than a width of the slot.

2. The slot antenna according to claim 1, wherein the slot is open at its another width side along a width side of the cover.

3. The slot antenna according to claim 1, wherein the slot is closed at its another width side within the cover.

4. The slot antenna according to claim 1, wherein the length of the feeding line is from 5 to 80 times the width of the slot.

5. The slot antenna according to claim 1, wherein the feeding line is expanded to include a plurality of feeding lines, which share the same negative feeding terminal and have their own positive feeding terminals;

and

wherein the length of at leas one of the plurality of feeding lines is larger than the width of the slot.

6. The slot antenna according to claim 5, wherein the length of at least one of the plurality of feeding lines is from 5 to 80 times the width of the slot.

7. The slot antenna according to claim 1, wherein routing of the feeding line in the antenna PCB is changed so as to provide different frequency bands.

8. The slot antenna according to claim 1, wherein a position of either the positive feeding terminal or the negative feeding terminal of the feeding line is changed so as to provide different frequency bands.

9. The slot antenna according to claim 1, wherein the feeding line is a direct line segment with its positive and negative feeding terminals being in lines.

10. The slot antenna according to claim 1, wherein the feeding line is a direct line segment forming an angle with respect to the bottom side of the antenna PCB.

11. The slot antenna according to claim 1, wherein the feeding line consists of a plurality of line segments.

12. A slot antenna comprising:

a cover including a slot; and

an antenna PCB including a feeding line across the slot; and

a metal rib;

wherein the antenna PCB is coupled with the cover through a positive feeding terminal of the feeding line;

wherein the metal rib is vertically disposed on the cover to facilitate propagation of radio emission generated by the slot antenna; and

wherein a length of the feeding line is larger than a width of the slot.

13. The slot antenna according to claim 12, wherein the metal rib is disposed between the antenna PCB and an input/output cable.

14. The slot antenna according to claim 12, wherein the metal rib is disposed between a panel and an input/output cable.

15. The slot antenna according to claim 12, wherein the length of the feeding line is larger than 5 times the width of the slot.