CN105576371A - Mobile terminal and antenna grounding structure thereof - Google Patents

Mobile terminal and antenna grounding structure thereof Download PDF

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Publication number
CN105576371A
CN105576371A CN201610112144.5A CN201610112144A CN105576371A CN 105576371 A CN105576371 A CN 105576371A CN 201610112144 A CN201610112144 A CN 201610112144A CN 105576371 A CN105576371 A CN 105576371A
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CN
China
Prior art keywords
described
antenna
mobile terminal
end
shell
Prior art date
Application number
CN201610112144.5A
Other languages
Chinese (zh)
Inventor
肖国文
Original Assignee
广东小天才科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广东小天才科技有限公司 filed Critical 广东小天才科技有限公司
Priority to CN201610112144.5A priority Critical patent/CN105576371A/en
Publication of CN105576371A publication Critical patent/CN105576371A/en

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/44Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/48Earthing means; Earth screens; Counterpoises

Abstract

The invention discloses a mobile terminal and an antenna grounding structure thereof. The mobile terminal comprises a metal back shell; the metal back shell at least comprises an antenna shell provided with an antenna and a main body shell for covering the motherboard of the mobile terminal; the antenna shell and the main body shell are separated by a slot; antenna ground is arranged on the antenna shell; the antenna grounding structure further comprises a sheet conductor; and the antenna ground is coupled with one end of the sheet conductor, and the other end of the sheet conductor is connected with a grounding point on the motherboard of the mobile terminal. The sheet conductor is adopted to be coupled with the metal back shell at the antenna grounding position, the sheet conductor then extends to another position, grounding with the motherboard is then realized, and the thickness of equipment is almost not increased; an expected appearance or an ID is not changed, the device does not need to be moved, or a clearance area is increased; and the antenna performance is consistent with the original grounding effect through verification, and the antenna performance is not influenced.

Description

Mobile terminal and antenna earthing structure thereof

Technical field

The present invention relates to field of mobile terminals, particularly relate to a kind of mobile terminal and antenna earthing structure thereof.

Background technology

Conventional mobile phone, dull and stereotyped, Intelligent worn device is in order to the attractive in appearance of outward appearance and metal-like, usual employing drain pan, frame all-metal designs, metal material is generally aluminium alloy, metal or localized metallic can as parts for antenna or antenna, generally can add earth point to be connected with mainboard, multiband aerial may add multiple earth point, consider for antenna performance, earth point needs to realize fixed point ground connection at ad-hoc location, antenna is generally made in the empty regions of display screen and touch-screen, but these empty regions have loud speaker usually, motor, PCB or FPC, USB socket, camera, earphone socket or other device, cause antenna cannot to fix a point ground connection, usually following way is had: 1, moving device realizes fixed point ground connection, have changed outward appearance or the ID of expection like this, 2, strengthen device thickness, or strengthen empty regions realization fixed point ground connection, do whole length enlarged in thickness like this, 3, antenna ground point is removed, and causes antenna performance to decline.

Summary of the invention

Based on this, be necessary to provide a kind of antenna earthing structure that antenna performance does not change again the mobile terminal of expection outward appearance that can ensure.

The invention provides a kind of antenna earthing structure of mobile terminal, described mobile terminal comprises metal shell on the back, described metal shell on the back at least comprises the antenna housing that is provided with antenna and the body shell for covering Mobile terminal main board, described antenna housing and described body shell are separated by with SLOT seam, described antenna housing is provided with antenna ground, described antenna earthing structure comprises a slice conductor, described antenna ground connects with one end lotus root of described slice conductor, and the other end of described slice conductor is connected with the earth point on described Mobile terminal main board.

Present invention also offers a kind of mobile terminal, comprise metal shell on the back, described metal shell on the back at least comprises the antenna housing that is provided with antenna and the body shell for covering Mobile terminal main board, described antenna housing and described body shell are separated by with SLOT seam, described antenna housing is provided with antenna ground, described mobile terminal also comprises a slice conductor, and described antenna ground connects with one end lotus root of described slice conductor, and the other end of described slice conductor is connected with the earth point on described Mobile terminal main board.

Above-mentioned mobile terminal and antenna earthing structure thereof adopt slice conductor to connect in antenna ground position and metal shell on the back lotus root, then extend to another location, then are grounded with mainboard, increase device thickness hardly; Do not change outward appearance or the ID of expection, without moving device or increasing empty regions; Antenna performance is consistent with former earthing effect through checking, does not affect antenna performance.

Accompanying drawing explanation

Fig. 1 is the plan structure schematic diagram of mobile terminal antenna ground structure in present pre-ferred embodiments;

Fig. 2 is the side-looking structural representation of mobile terminal antenna ground structure in present pre-ferred embodiments.

Embodiment

In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.

Refer to Fig. 1 and Fig. 2, the antenna earthing structure of mobile terminal in present pre-ferred embodiments, mobile terminal comprises metal shell on the back 10, metal shell on the back 10 at least comprises the antenna housing 12 that is provided with antenna 11 and the body shell 14 for covering Mobile terminal main board 13, antenna housing 12 and body shell 14 are separated by with SLOT seam 15, antenna housing 12 is provided with antenna ground 111, as shown in FIG., empty regions under the perspective plane of antenna housing 12 has loud speaker usually, motor, PCB or FPC, USB socket, camera, earphone socket or other device 20, cause antenna 11 cannot to fix a point ground connection.

Antenna earthing structure comprises a slice conductor 16, and antenna ground 111 connects with one end lotus root of slice conductor 16, and the other end of slice conductor 16 is connected with the earth point 131 on Mobile terminal main board 13.

The projection of slice conductor 16 on metal shell on the back 10 is stitched through SLOT, with earth point 131 lotus root of mainboard 13 connects after extending to the empty regions that body shell 14 projects by antenna ground 111.This empty regions refers to does not have other can the device of potato masher antenna performance or the space of large device.

In one embodiment, slice conductor 16 is conductive metal sheet, concrete as aluminium flake, copper sheet or other sheet metals etc.One end of conductive metal sheet and antenna ground 111 are welded to connect, and the earth point 131 on the other end and Mobile terminal main board 13 is welded to connect.Aluminium flake thickness can be as thin as 0.2mm, increases device thickness hardly

Except weld is connected with metal shell on the back 10, conductive metal sheet and metal shell on the back 10 are separated by with insulating barrier 17 by other place's insulating material insulation, extend to the optional position ground connection not affecting antenna 11 performance.Insulating material is plastic cement, the metal oxide layer (anodic oxidation as aluminium alloy) or double faced adhesive tape etc. of nanometer injection moulding.

In the present embodiment, through RF test, the passive performance of S11 is almost consistent, and active aberrations in property, within 1dB, can meet antenna 11 performance requirement completely; The checkings such as mechanical test, pad microcosmic longitudinal section, earth resistance such as to fall through environmental test, salt mist test, vibration, earth resistance is less than 0.2 Europe, and reliability etc. meet grounding requirement.

In another embodiment, slice conductor 16 is that one end of FPC, FPC is connected by conducting resinl with antenna ground 111, and the other end is connected with the earth point 131 on Mobile terminal main board 13.

In the present embodiment, conducting resinl is put on the antenna ground 111 of antenna housing 12, FPC and antenna ground 111 are bonded together, then extend to another location, then be grounded with mainboard 13.The optional position ground connection not affecting antenna 11 performance can be extended to.Conducting resinl electric conductivity is good, drain pan earthing position and FPC back-side gold is pointed and is bonded together, and by FPC cabling, also beating via hole exposes golden finger in front, realizes extending ground connection.

In the present embodiment, through RF test, the passive performance of S11 is almost consistent, and active aberrations in property, within 1dB, can meet antenna 11 performance requirement completely; The checking such as mechanical test, adhesive spots earth resistance such as to fall through environmental test, salt mist test, vibration, earth resistance is less than 0.1 Europe, and reliability etc. meet grounding requirement.

In addition, also disclose a kind of mobile terminal, comprise metal shell on the back 10, metal shell on the back 10 at least comprises the antenna housing 12 that is provided with antenna 11 and the body shell 14 for covering Mobile terminal main board 13, and antenna housing 12 and body shell 14 are separated by with SLOT seam, and antenna housing 12 is provided with antenna ground 111, mobile terminal also comprises a slice conductor 16, and antenna ground 111 connects with one end lotus root of slice conductor 16, and the other end of slice conductor 16 is connected with the earth point 131 on Mobile terminal main board 13.

Preferably, the projection of slice conductor 16 on metal shell on the back 10 is stitched through SLOT.

Preferably, slice conductor 16 is conductive metal sheet, and one end of conductive metal sheet and antenna ground 111 are welded to connect, and the earth point 131 on the other end and Mobile terminal main board 13 is welded to connect.

Preferably, conductive metal sheet and metal shell on the back 10 are separated by with insulating barrier.

Preferably, slice conductor 16 is that one end of FPC, FPC is connected by conducting resinl with antenna ground 111, and the other end is connected with the earth point 131 on Mobile terminal main board 13.

Above-mentioned mobile terminal and antenna earthing structure thereof adopt slice conductor to connect in antenna ground position and metal shell on the back lotus root, then extend to another location, then are grounded with mainboard, increase device thickness hardly; Do not change outward appearance or the ID of expection, without moving device or increasing empty regions; Antenna performance is consistent with former earthing effect through checking, does not affect antenna performance.

These are only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. the antenna earthing structure of a mobile terminal, described mobile terminal comprises metal shell on the back, described metal shell on the back at least comprises the antenna housing that is provided with antenna and the body shell for covering Mobile terminal main board, described antenna housing and described body shell are separated by with SLOT seam, described antenna housing is provided with antenna ground, it is characterized in that, described antenna earthing structure comprises a slice conductor, described antenna ground connects with one end lotus root of described slice conductor, and the other end of described slice conductor is connected with the earth point on described Mobile terminal main board.
2. antenna earthing structure as claimed in claim 1, it is characterized in that, the projection of described slice conductor on described metal shell on the back is stitched through described SLOT.
3. antenna earthing structure as claimed in claim 1 or 2, it is characterized in that, described slice conductor is conductive metal sheet, is welded to connect one end of described conductive metal sheet and described antenna, and the earth point on the other end and described Mobile terminal main board is welded to connect.
4. antenna earthing structure as claimed in claim 3, it is characterized in that, described conductive metal sheet and described metal shell on the back are separated by with insulating barrier.
5. antenna earthing structure as claimed in claim 1 or 2, it is characterized in that, described slice conductor is FPC, and one end of described FPC is connected by conducting resinl with described antenna ground, and the other end is connected with the earth point on described Mobile terminal main board.
6. a mobile terminal, comprise metal shell on the back, described metal shell on the back at least comprises the antenna housing that is provided with antenna and the body shell for covering Mobile terminal main board, described antenna housing and described body shell are separated by with SLOT seam, described antenna housing is provided with antenna ground, and it is characterized in that, described mobile terminal also comprises a slice conductor, described antenna ground connects with one end lotus root of described slice conductor, and the other end of described slice conductor is connected with the earth point on described Mobile terminal main board.
7. mobile terminal as claimed in claim 6, it is characterized in that, the projection of described slice conductor on described metal shell on the back is stitched through described SLOT.
8. mobile terminal as claimed in claims 6 or 7, it is characterized in that, described slice conductor is conductive metal sheet, is welded to connect one end of described conductive metal sheet and described antenna, and the earth point on the other end and described Mobile terminal main board is welded to connect.
9. mobile terminal as claimed in claim 8, it is characterized in that, described conductive metal sheet and described metal shell on the back are separated by with insulating barrier.
10. mobile terminal as claimed in claims 6 or 7, it is characterized in that, described slice conductor is FPC, and one end of described FPC is connected by conducting resinl with described antenna ground, and the other end is connected with the earth point on described Mobile terminal main board.
CN201610112144.5A 2016-02-29 2016-02-29 Mobile terminal and antenna grounding structure thereof CN105576371A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610112144.5A CN105576371A (en) 2016-02-29 2016-02-29 Mobile terminal and antenna grounding structure thereof

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Application Number Priority Date Filing Date Title
CN201610112144.5A CN105576371A (en) 2016-02-29 2016-02-29 Mobile terminal and antenna grounding structure thereof

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106060193A (en) * 2016-05-17 2016-10-26 青岛海信移动通信技术股份有限公司 Mobile terminal
CN108023169A (en) * 2017-11-30 2018-05-11 广东欧珀移动通信有限公司 Housing and mobile terminal

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201655954U (en) * 2010-03-10 2010-11-24 中兴通讯股份有限公司 Antenna device and mobile terminal
CN102834966A (en) * 2010-02-18 2012-12-19 脉冲芬兰有限公司 Antenna provided with cover radiator
CN103117452A (en) * 2013-02-07 2013-05-22 上海安费诺永亿通讯电子有限公司 Novel LTE (long-term evolution) terminal antenna
CN103700925A (en) * 2013-12-24 2014-04-02 上海安费诺永亿通讯电子有限公司 All-metal mobile terminal double-slit antenna
CN203553348U (en) * 2013-10-16 2014-04-16 上海安费诺永亿通讯电子有限公司 A multi-frequency antenna applicable to a mobile terminal with a metal decoration frame structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102834966A (en) * 2010-02-18 2012-12-19 脉冲芬兰有限公司 Antenna provided with cover radiator
CN201655954U (en) * 2010-03-10 2010-11-24 中兴通讯股份有限公司 Antenna device and mobile terminal
CN103117452A (en) * 2013-02-07 2013-05-22 上海安费诺永亿通讯电子有限公司 Novel LTE (long-term evolution) terminal antenna
CN203553348U (en) * 2013-10-16 2014-04-16 上海安费诺永亿通讯电子有限公司 A multi-frequency antenna applicable to a mobile terminal with a metal decoration frame structure
CN103700925A (en) * 2013-12-24 2014-04-02 上海安费诺永亿通讯电子有限公司 All-metal mobile terminal double-slit antenna

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106060193A (en) * 2016-05-17 2016-10-26 青岛海信移动通信技术股份有限公司 Mobile terminal
CN108023169A (en) * 2017-11-30 2018-05-11 广东欧珀移动通信有限公司 Housing and mobile terminal

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Application publication date: 20160511

RJ01 Rejection of invention patent application after publication