ANTENNA AND ELECTRONIC DEVICE INCLUDING THE SAME

• US 20160149290A1
• Filed: 11/19/2015
• Published: 05/26/2016
• Est. Priority Date: 11/21/2014
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Park, Jung-Sik, KIM, Yeon-Woo, LEE, Woo-Sup, JEON, Seung-gil, Noh, Ju-Seok, Chun, Jae-Bong, HONG, Hyun-Ju
• Granted Patent: US 10,374,286 B2
• Time in Patent Office: Days
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 1/44 using equipment having another main function to serve additionally as an antenna , e.g. means for giving an antenna an aesthetic aspectH01Q1/27 - H01Q1/34 take precedence
• CPC Class Codes: H01Q 9/42 with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Abstract

An electronic device comprising: a housing; a wireless communication transceiver provided within the housing; an antenna radiator provided within the housing; and a cover arranged to cover at least a portion of the antenna radiator and form at least a portion of a surface of the housing, wherein the cover includes a conductive material, and the cover is at least partially detachable from the housing.

Claims

1. An electronic device comprising:

a housing;

a wireless communication transceiver provided within the housing;

an antenna radiator provided within the housing; and

a cover arranged to cover at least a portion of the antenna radiator and form at least a portion of the housing, wherein the cover includes a conductive material, and the cover is at least partially detachable from the housing.

2. The electronic device of claim 1, wherein the antenna radiator is in electrical contact with the conductive material of the cover.

3. The electronic device of claim 1, wherein the antenna radiator includes a first portion that is inserted into an injection-molded object, and a second portion exposed from the injection molded object, the exposed second portion is contact with the conductive material.

4. The electronic device of claim 1, wherein the cover includes a first flat surface and a second curved surface.

5. The electronic device of claim 1, further comprising:

a variable passive element.

6. The electronic device of claim 5, wherein the variable passive element includes at least one of a variable capacitor and a variable inductor.

7. The electronic device of claim 5, further comprising:

a control circuit arranged to generate a control signal for changing a state of the variable passive element.

8. The electronic device of claim 7, wherein the control circuit is arranged to generate the control signal in response to the cover being at least partially detached from the housing.

9. The electronic device of claim 1, wherein the cover includes at least one of a flip cover and an accessory cover additionally applied to the electronic device.

10. An antenna comprising:

an antenna radiator coupled to a feeding line and a ground line;

a metallic structure electrically coupled to the antenna radiator and arranged to contribute to an electrical length of the antenna; and

at least one electric circuit interposed between an electrical lines, the electric circuit being arranged to compensate for a change in the electrical length of the antenna that occurs when the metallic structure is decoupled from the antenna radiator.

11. The antenna of claim 10, wherein a electrical length of the antenna is changed when the metallic structure is decoupled from the antenna radiator.

12. The antenna of claim 10, further comprising a plurality of conductive contact elements arranged at a specific interval on an upper surface of the antenna radiator in a desired current flow direction, wherein an inner surface of the metallic structure is electrically coupled with the contact elements.

13. The antenna of claim 12, wherein the conductive contact elements include at least one of conductive clips, conductive foam, and conductive patches.

14. The antenna of claim 10, wherein the electric circuit includes at least one of:

(i) a passive circuit comprising at least one of an inductor (L) and a capacitor (C),

(ii) a tunable circuit comprising at least one active element,

(iii) a Field-effect transistor (FET), and

(vi) a bipolar junction transistor (BJT), a

(v) an RF passive element and an active element, and

(vi) one or more interdigital circuits.

15. The antenna of claim 10, wherein the antenna is adapted to be received within a housing of an electronic device, and the metallic structure forms at least a portion of an outer wall of the housing.

16. The antenna of claim 10, wherein the metallic structure is part of at least one of a battery cover, a flip cover, and an accessory cover.

17. An electronic device comprising:

a housing including a metallic structure that forms at least a portion of an outer wall of the housing;

an antenna radiator arranged in the housing, wherein the metallic structure is coupled to the antenna radiator and arranged to contribute to a electrical length of an antenna that is formed by the antenna radiator and the metallic structure; and

at least one electric circuit interposed between an electrical lines, the at least one electric circuit being arranged to compensate for a change in the electrical length of the antenna that occurs when the metallic structure is decoupled from the antenna radiator.

18. The electronic device of claim 17, further comprising a plurality of conductive contact elements arranged at a specific interval on an upper surface of the antenna radiator in a desired current flow direction, wherein an inner surface of the metallic structure is electrically coupled with the contact elements.

19. The electronic device of claim 17, wherein the electric circuit includes at least one of:

(i) a passive circuit comprising at least one of an inductor (L) and a capacitor (C),

(ii) a tunable circuit comprising at least one active element,

(iii) a Field-effect transistor (FET),

(iv) a bipolar junction transistor (BJT),

(v) a combination of an RF passive element and an active element, and

(vi) one or more interdigital circuits.

20. An electronic device comprising:

a housing including a metallic structure that forms at least a portion of an outer wall of the housing;

a dielectric carrier arranged in the housing;

an antenna radiator arranged in the dielectric carrier and operated in at least one frequency band, wherein the metallic structure is coupled to the antenna radiator and arranged to contribute to a physical length of an antenna that is formed by the antenna radiator and the metallic structure; and

at least one electric circuit interposed between an electrical lines to compensate for a change in the electrical length of the antenna radiator that occurs when the metallic structure is decoupled from the antenna radiator.