CN108417967A - Shell, antenna module and electronic equipment - Google Patents
Shell, antenna module and electronic equipment Download PDFInfo
- Publication number
- CN108417967A CN108417967A CN201810104782.1A CN201810104782A CN108417967A CN 108417967 A CN108417967 A CN 108417967A CN 201810104782 A CN201810104782 A CN 201810104782A CN 108417967 A CN108417967 A CN 108417967A
- Authority
- CN
- China
- Prior art keywords
- shell
- conductive layer
- housing base
- feed
- antenna module
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Support Of Aerials (AREA)
- Details Of Aerials (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention discloses a kind of shell, antenna module and electronic equipments.Antenna radiator of the shell as electronic equipment, the shell generates surface current in radiated electromagnetic wave signal, the shell includes housing base and the conductive layer set on the surface of the housing base, the conductivity of the conductive layer is more than the conductivity of the housing base, so that at least partly described surface current passes through the conductive layer.The antenna module includes feed and the shell, and the feed is electrically connected with the shell, and the feed is used to generate electromagnetic wave signal according to the pumping signal and radiate the electromagnetic wave signal for providing pumping signal, the shell.The electronic equipment includes weighing the antenna module.The solution of the present invention can reduce the loss of antenna power, promote antenna performance.
Description
Technical field
The present invention relates to a kind of antenna technical field more particularly to shell, antenna module and electronic equipments.
Background technology
The electronic product of mainstream, such as mobile phone, tablet computer make antenna usually using metal shell.Existing metal shell
Electric conductivity is poor, and which increase the losses of antenna power, and the performance of antenna is caused to decline.
Invention content
In view of this, the present invention provides a kind of shell, antenna module and electronic equipment, the damage of antenna power can be reduced
Consumption promotes antenna performance.
A kind of shell, as the antenna radiator of electronic equipment, the shell generates surface in radiated electromagnetic wave signal
Electric current, the shell include housing base and the conductive layer set on the surface of the housing base, the conductivity of the conductive layer
More than the conductivity of the housing base, so that at least partly described surface current passes through the conductive layer.
A kind of antenna module, including feed and the shell, the feed are electrically connected with the shell, and the feed is used for
Pumping signal is provided, the shell is used to generate electromagnetic wave signal according to the pumping signal and radiates the electromagnetic wave signal
It goes out.
A kind of electronic equipment, including the power antenna module.
In the solution of the present invention, after the surface of housing base is provided with conductive layer, surface current will be at least in conductive layer
(surface current is substantially only distributed in the conductive layer or Surface current distribution is on the surface layer of housing base and conduction for middle flowing
In layer).Since the resistivity of conductive layer is smaller, compared to existing shell, the effective resistance of shell of the invention is smaller.By
This, is by the way that in conductive layer of the surface of the housing base setting with larger conductivity, the effective resistance of shell can be reduced, to
Loss of the antenna power on antenna radiator is reduced, the radiance of antenna module is enhanced.
Description of the drawings
For more clearly illustrate the present invention construction feature and effect, come below in conjunction with the accompanying drawings with specific embodiment to its into
Row is described in detail.
Fig. 1 is the positive structure diagram of the electronic equipment of the embodiment of the present invention；
Fig. 2 is the backsight structural representation of the electronic equipment of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the antenna module of the electronic equipment of the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the shell of the antenna module of the embodiment of the present invention；
Fig. 5 is the current density distribution schematic diagram of the surface current on the shell of the embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes.Obviously, described embodiment is a part of the embodiment of the present invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other reality that those of ordinary skill in the art are obtained without making creative work
Example is applied, the scope of protection of the invention should be all belonged to.
Figures 1 and 2 show that the electronic equipment 10 of the present embodiment, electronic equipment 10 includes but not limited to for mobile phone, tablet
The electric terminals such as computer, portable computer.Electronic equipment 10 may include shell 12 and the display screen that is housed in shell 12
11.Shell 12 can be the front housing (shown in Fig. 1) or rear shell of electronic equipment 10 (shown in Fig. 2).Electronic equipment 10 further includes antenna
Component, for realizing communication function.Wherein, when shell 12 is rear shell, slit can be opened up on shell 12, is filled in slit non-
Signal shielding material 13, to utilize slit radiated electromagnetic wave signal.
Fig. 3 is the planar structure schematic diagram of the antenna module 20 of the present embodiment.As shown in figure 3, antenna module 20 includes feedback
Source 22 and shell 12, feed 22 are electrically connected with shell 12.For feed 22 for providing pumping signal, feed 22 includes but not limited to be
Radio frequency chip.Shell 12 is then used to generate electromagnetic wave signal according to pumping signal, and electromagnetic wave signal is radiate.For example,
Current feed department 121 can be set on shell 12, and pumping signal is by 121 feed-in shell 12 of current feed department.It should be understood that antenna module 20 includes
Earth polar, pumping signal are transmitted to shell 12 by feed 22 and flow into earth polar again, form pumping signal transmission path.Pumping signal is herein
It is vibrated in transmission path, forms electromagnetic wave signal.
Further, as shown in figure 3, antenna module 20 may include circuit board 23, feed 22 is laid on circuit board 23.
Impedance matching circuit can also be laid on circuit board 23, feed 22 is connect with impedance matching circuit.Impedance matching circuit for
Matching degree between the input impedance of output impedance and antenna radiator (i.e. shell 12) with feed 22, to promote antenna effect
Rate promotes the performance of antenna module 20.
Further, as shown in figure 3, antenna module 20 may include connecting device 21.Connect device 21 and 22 electricity of feed
Connection, and be in direct contact with shell 12 and pumping signal is transmitted to shell 12 in a manner of by being in direct contact feed.Alternatively, leading
Connect device 21 and shell 12 separately, the two forms coupled capacitor, and will pumping signal shell be transmitted in a manner of couple feed
Body 12.It is shrapnel, conducting wire, metallic screw etc. to connect device 21 including but not limited to, any to realize electrical contact and transmit electricity
The device of signal all can serve as to connect device 21.It can be convenient for the company of antenna radiator and radio circuit using device 21 is connected
It connects, and ensures the reliability of electrical connection.
As shown in figure 4, conductive layer 124 of the shell 12 including housing base B and set on the surface of housing base B is (in Fig. 4
Black region), the conductivity of conductive layer 124 is more than the conductivity of housing base B.
Specifically, housing base B be carry conductive layer 124, essential structure with shell 12 housing parts.Such as shell
Body matrix B may include rear cover 123 and be disposed around the frame 122 of the periphery of rear cover 123, and rear cover 123 can be into frame 122
Type is integrated, and can also be assembled into one.The surface of housing base B refers to its all surfaces, including inner surface and appearance.Example
Such as, when housing base B includes rear cover 123 and frame 122, the surface of housing base B includes the inner surface and appearance of frame 122
The inner surface and the outer surface of face and rear cover 123.
In the present embodiment, the surface that conductive layer 124 is located at housing base B may include：Conductive layer 124 is in housing base B
All surfaces be all distributed, or be only distributed only over the part surface of housing base B；Conductive layer 124 can be distributed in shell
The inner surface of matrix B and/or outer surface.For example, when housing base B includes rear cover 123 and frame 122, conductive layer 124 can be with
It is distributed on frame 122 and/or rear cover 123.And for any of frame 122 and rear cover 123, conductive layer 124 can be distributed
In its inner surface and/or outer surface.
The conductivityσ of conductor is with the relationship of its electricalresistivityρ：The ρ of σ=1/.Since the conductivityσ of conductive layer 124 is more than shell
The conductivityσ of body matrix B, so the electricalresistivityρ of conductive layer 124 is less than the electricalresistivityρ of housing base B.In addition, shell 12 radiates
Electromagnetic wave signal be high-frequency signal, there are stronger Kelvin effect, make current convergence on shell 12 on the surface layer of shell 12,
It is bigger closer to surface current density.Such electric current is known as surface current in the present embodiment.
In the present embodiment, after the surface of housing base B is provided with conductive layer 124, surface current will be at least in conductive layer
(surface current is substantially only distributed in conductive layer 124 or Surface current distribution is on the surface layer of housing base B for flowing in 124
With in conductive layer 124).Since the electricalresistivityρ of conductive layer 124 is smaller, conductive layer 124 is not set compared to housing base B surface
Scheme (housing base B is exactly shell at this time), the effective resistance R of shell 12 are smaller.As a result, by the surface of housing base B
Conductive layer 124 with larger conductivityσ is set, the effective resistance R of shell 12 can be reduced, to reduce antenna power in day
Loss on beta radiation body enhances the radiance of antenna module 20.
Skin depth of the surface current on conductor, i.e. surface current play the attainable depth of institute along conductive surface, with table
The angular frequency of surface current, the magnetic conductivity of conductor are related with conductivity.In the present embodiment, it is preferred that the thickness of conductive layer 124 can be with
More than or equal to skin depth of the surface current on conductive layer 124, so that all surfaces current convergence is in conductive layer 124.
The scheme that surface current is also distributed in the surface layer of housing base B is compared, due to substantial only conduction in shell 12 in this programme
Layer 124 has surface current, this can further decrease the effective resistance R of shell 12, thus substantially reduce antenna power in antenna
Loss on radiator greatly enhances the radiance of antenna module 20.In other embodiments, as long as setting conductive layer
124, the thickness without limiting conductive layer 124 is greater than or the skin depth equal to surface current on conductive layer 124,
The purpose for the effective resistance R for reducing shell 12 can be realized.
In the present embodiment, it is preferred that conductive layer 124 can be formed by electroplating technology, i.e., conductive layer 124 is plated material
Layer.Electroplating technology is simple and practicable, reliability of technology is high, is formed by 124 performance of conductive layer stabilization.In other embodiments,
Other surfaces treatment process may be used and form conductive layer 124, such as vapor deposition, thermal spraying etc., or can also be in shell
Body matrix B surface adheres to a relatively thin conductive structure part, this conductive structure part is as conductive layer 124 etc..
In the present embodiment, it is preferred that the material of conductive layer 124 is gold or copper, and the electric conductivity of such material is good, favorably
In the reliable radiation of antenna radiator.It is of course also possible to use other conductive materials, such as metallic silver.Also may be used after ag material oxidation
With conduction, therefore the oxidation of conductive layer 124 adverse effect caused by the electric conductivity of antenna radiator can be avoided.
In the art, the distribution of surface current and uneven, according to the specific configuration of antenna radiator, surface current meeting
There is different current densities in the various pieces of antenna radiator.In the present embodiment, further, shell 12 may include first
Part and second part, first part and second part refer both to three-dimensional structure.Surface current distribution is in first part and second
In point.Wherein, the current density of first part is more than the current density of second part.Conductive layer 124 and it is covered with conductive layer 124
Partial shell matrix B constitute first part, do not constitute described second by another part housing base B that conductive layer 124 covers
Partly (part i.e. in shell 12 in addition to first part is second part).It is larger that conductive layer 124 is located at current density
First part makes more surface currents flow through conductive layer 124, this can further decrease the effective resistance R of shell 12, to aobvious
The loss for reducing antenna power on antenna radiator is write, the radiance of antenna module 20 is greatly enhanced.In the present embodiment, the
The position of a part can determine according to actual needs, such as can determine the threshold value of current density, have higher than this threshold value
The partial shell of current density is as first part.When housing base B includes frame 122 and rear cover 123, above-mentioned first part
It may each be a part for the part-structure of the frame 122 either part-structure of rear cover 123 or frame 122 with second part
Structure adds a part of structure of rear cover 123.
As shown in figure 5, in the present embodiment, it is preferred that the surface of housing base B can open up slit, and slit runs through shell
Matrix B, makes electromagnetic wave signal be radiate from slit.When housing base B includes frame 122 and rear cover 123, slit can be with
It is distributed across on frame 122 and/or rear cover 123.The current density of the periphery of slit is larger (to show electricity in Fig. 4 with dot matrix shade
The larger region of current density).As shown in figure 4, conductive layer 124 is located at the periphery of slit namely conductive layer 124 and is covered with conduction
The periphery of the slit of layer 124 is above-mentioned first part.Conductive layer 124 is located to the periphery of slit as a result, it can be micro- in utilization
While stitching radiated electromagnetic wave signal, the effective resistance R of shell 12 is further decreased, substantially reduces antenna power in aerial radiation
Loss on body greatly enhances the radiance of antenna module 20.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily expect various equivalent modifications or
It replaces, these modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention Ying Yiquan
Subject to the protection domain that profit requires.
Claims (10)
1. a kind of shell, as the antenna radiator of electronic equipment, the shell generates surface electricity in radiated electromagnetic wave signal
Stream, which is characterized in that
The shell includes housing base and the conductive layer set on the surface of the housing base, and the conductivity of the conductive layer is big
In the conductivity of the housing base, so that at least partly described surface current passes through the conductive layer.
2. shell according to claim 1, which is characterized in that
The shell includes first part and second part, and the current density of the surface current in the first part is more than described
The current density of surface current in second part, the conductive layer and the part for being covered with the conductive layer housing base
The first part is constituted, housing base described in the another part not covered by the conductive layer constitutes the second part.
3. shell according to claim 2, which is characterized in that
The surface offers the slit through the housing base, and the conductive layer is located at the periphery of the slit, and described
A part includes the periphery of the conductive layer and the slit.
4. according to claim 1-3 any one of them shells, which is characterized in that
The thickness of the conductive layer is greater than or equal to skin depth of the surface current on the conductive layer.
5. according to claim 1-3 any one of them shells, which is characterized in that
The conductive layer is formed by electroplating technology.
6. according to claim 1-3 any one of them shells, which is characterized in that
The material of the conductive layer is gold or copper.
7. a kind of antenna module, which is characterized in that
Including feed and claim 1-6 any one of them shells, the feed is electrically connected with the shell, and the feed is used
In providing pumping signal, the shell is used to generate electromagnetic wave signal according to the pumping signal and by the electromagnetic wave signal spoke
It is shot out.
8. antenna module according to claim 7, which is characterized in that
Further include connecting device, the device that connects is electrically connected with the feed, and the device that connects directly connects with the shell
Coupled capacitor is touched or formed, the pumping signal is transmitted to the shell in a manner of by being in direct contact feed or couple feed
Body.
9. a kind of electronic equipment, which is characterized in that
Including the antenna module described in claim 7 or 8.
10. electronic equipment according to claim 9, which is characterized in that
The housing base includes rear cover and is disposed around the frame of the periphery of the rear cover, and the conductive layer is set to the frame
Surface and/or the surface of the rear cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810104782.1A CN108417967B (en) | 2018-01-31 | 2018-01-31 | Housing, antenna assembly and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810104782.1A CN108417967B (en) | 2018-01-31 | 2018-01-31 | Housing, antenna assembly and electronic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108417967A true CN108417967A (en) | 2018-08-17 |
| CN108417967B CN108417967B (en) | 2020-03-17 |
Family
ID=63127398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810104782.1A Active CN108417967B (en) | 2018-01-31 | 2018-01-31 | Housing, antenna assembly and electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108417967B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113690588A (en) * | 2021-08-23 | 2021-11-23 | Oppo广东移动通信有限公司 | Antenna device, electronic apparatus, and method for designing antenna device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010061642A1 (en) * | 2008-11-26 | 2010-06-03 | 京セラ株式会社 | Portable terminal |
| CN101911381A (en) * | 2008-01-15 | 2010-12-08 | 松下电器产业株式会社 | Portable wireless device |
| CN102055059A (en) * | 2009-11-04 | 2011-05-11 | 英华达股份有限公司 | Production process for antenna of communication electronic device |
| US8686904B2 (en) * | 2010-06-14 | 2014-04-01 | Compal Electronics, Inc. | Antenna-embedded electronic device case |
| CN103872452A (en) * | 2012-12-14 | 2014-06-18 | 联想(北京)有限公司 | Electronic device, antenna and method for forming antenna |
-
2018
- 2018-01-31 CN CN201810104782.1A patent/CN108417967B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101911381A (en) * | 2008-01-15 | 2010-12-08 | 松下电器产业株式会社 | Portable wireless device |
| WO2010061642A1 (en) * | 2008-11-26 | 2010-06-03 | 京セラ株式会社 | Portable terminal |
| CN102055059A (en) * | 2009-11-04 | 2011-05-11 | 英华达股份有限公司 | Production process for antenna of communication electronic device |
| US8686904B2 (en) * | 2010-06-14 | 2014-04-01 | Compal Electronics, Inc. | Antenna-embedded electronic device case |
| CN103872452A (en) * | 2012-12-14 | 2014-06-18 | 联想(北京)有限公司 | Electronic device, antenna and method for forming antenna |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113690588A (en) * | 2021-08-23 | 2021-11-23 | Oppo广东移动通信有限公司 | Antenna device, electronic apparatus, and method for designing antenna device |
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| Publication number | Publication date |
|---|---|
| CN108417967B (en) | 2020-03-17 |
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| CB02 | Change of applicant information |
Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Applicant after: OPPO Guangdong Mobile Communications Co., Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Applicant before: Guangdong OPPO Mobile Communications Co., Ltd. |
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