Antenna and electronic device including the same

Patent metadata

Field	Value
Publication number	US-2016149290-A1
Application number	US-201514945597-A
Country	US
Kind code	A1
Filing date	Nov 19, 2015
Priority date	Nov 21, 2014
Publication date	May 26, 2016
Grant date	—

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.

First claim

What is claimed is:

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.

Assignees

• 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

Classifications

• H01Q1/243 Primary

  with built-in antennas · CPC title

• H05K5/04

  Metal casings · CPC title

• H05K5/0247

  Electrical details of casings, e.g. terminals, passages for cables or wiring · CPC title

• H01Q9/42

  with folded element, the folded parts being spaced apart a small fraction of the operating wavelength · CPC title

• H01Q1/44

  using equipment having another main function to serve additionally as an antenna {, e.g. means for giving an antenna an aesthetic aspect}(H01Q1/27 - H01Q1/34 take precedence) · CPC title