CN104167590B - Reduce the terminal and antenna arrangement method of electromagnetic wave absorption rate - Google Patents
Reduce the terminal and antenna arrangement method of electromagnetic wave absorption rate Download PDFInfo
- Publication number
- CN104167590B CN104167590B CN201310183150.6A CN201310183150A CN104167590B CN 104167590 B CN104167590 B CN 104167590B CN 201310183150 A CN201310183150 A CN 201310183150A CN 104167590 B CN104167590 B CN 104167590B
- Authority
- CN
- China
- Prior art keywords
- antenna
- shunting
- principal communication
- communication antenna
- absorption rate
- 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.)
- Active
Links
Classifications
-
- 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
- H01Q1/245—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 with means for shaping the antenna pattern, e.g. in order to protect user against rf exposure
Abstract
The present invention relates to a kind of terminals and antenna arrangement method for reducing electromagnetic wave absorption rate, by the way that the shunting antenna with its reverse coupled is arranged near principal communication antenna, and then weakens the magnetic field around principal communication antenna and reduce the field strength of principal communication antenna, so that field strength is directly proportional to SAR value, when field strength reduces, then SAR value reduces, i.e., by increasing the shunting antenna with principal communication antenna reverse coupled, reduces SAR value.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of terminals and antenna arrangement for reducing electromagnetic wave absorption rate
Method.
Background technique
SAR(Specific Absorption Rate, electromagnetic wave absorption rate) for describing mobile phone or wireless product
Specific absorption rate value, is defined as: under the action of external electromagnetic field, induction field will be generated in human body.Due to
The various organs of human body are power consumption medium, therefore electromagnetic field will generate electric current in vivo, lead to absorption and dissipative electromagnetic energy,
Electromagnetic power that SAR is absorbed or consumed by the tissue of unit quality, micromation and ultrathin with mobile terminal
The volume of development trend, antenna is smaller and smaller, but its electrical property need at the same meet omnidirectional's total radiant power, omnidirectional sensibility,
The requirement of the indexs such as specific absorption ratio is difficult to reduce SAR value when guaranteeing total radiant power.
Summary of the invention
The main object of the present invention is to provide a kind of method for reducing electromagnetic wave absorption rate and antenna arrangement, it is intended to pass through
Increase the SAR value for shunting antenna reduction communication equipment.
The present invention proposes a kind of terminal for reducing electromagnetic wave absorption rate, and including circuit board and circuit board one end is arranged in
Principal communication antenna, further includes the shunting antenna that circuit board the same end is arranged in principal communication antenna, the principal communication antenna with point
Current antenna is oppositely arranged and mutually opposing coupling.
Preferably, the principal communication antenna is contrary with antenna current is shunted.
Preferably, the shunting antenna is communicated as function antenna.
Preferably, the shunting antenna is located in the electromagnetic wave absorption rate SAR hot spot region of the principal communication antenna.
Preferably, antenna and the principal communication antenna of shunting is in the electromagnetic wave absorption rate of the principal communication antenna
SAR hot spot region interior resonance.
The present invention also proposes a kind of antenna arrangement method characterized by comprising
It is arranged and the mutually opposing shunting coupled of the principal communication antenna in one end that circuit board is provided with principal communication antenna
Antenna；
The shunting antenna is oppositely arranged with the principal communication antenna and current direction is opposite.
Preferably, the shunting antenna is communicated as function antenna.
Preferably, the main shunting antenna is located in the electromagnetic wave absorption rate SAR hot spot region of the principal communication antenna.
Preferably, electric wire and the primary antenna of shunting is in the electromagnetic wave absorption rate SAR warm of the principal communication antenna
Point region interior resonance.
The terminal and antenna arrangement method proposed by the present invention for reducing electromagnetic wave absorption rate, by principal communication antenna
The shunting antenna of setting and its reverse coupled nearby, and then weaken the magnetic field around principal communication antenna and reduce principal communication antenna
Field strength, so that field strength is directly proportional to SAR value, when field strength reduces, then SAR value reduces, i.e., anti-with principal communication antenna by increasing
To the shunting antenna of coupling, SAR value is reduced.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the preferred embodiment for the terminal that the present invention reduces electromagnetic wave absorption rate.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is described further with regard to technical solution of the present invention.It should be appreciated that this
Locate described specific embodiment to be only used to explain the present invention, be not intended to limit the present invention.
Referring to Fig.1, Fig. 1 is the structural schematic diagram of the preferred embodiment for the terminal that the present invention reduces electromagnetic wave absorption rate.
The terminal for the reduction electromagnetic wave absorption rate that the present embodiment proposes, including circuit board 10 and setting are in circuit board 10 1
The principal communication antenna 20 at end further includes the shunting antenna 30 that 10 the same end of circuit board is arranged in principal communication antenna 20, principal communication
Antenna 20 with shunt antenna 30 and be oppositely arranged and mutually opposing couple.Antenna 30 and 20 reverse coupled of principal communication antenna are shunted, is cut
Magnetic field around weak principal communication antenna 20 reduces the field strength around principal communication antenna 20.
And the SAR of antenna are as follows:, E is the field strength by excitation object in space, and σ is by excitation object
Conductivity, ρ are by the density of excitation object.
Illustrate that the SAR of antenna is directly proportional to the field strength near it, field strength reduce when SAR value reduce, then due to
Increase near principal communication antenna 20 and move towards opposite shunting antenna 30 with it, reduces the field strength near principal communication antenna 20,
Further decrease SAR value.
The present embodiment propose reductions electromagnetic wave absorption rate terminal, by near principal communication antenna 20 be arranged and
The shunting antenna 30 of its reverse coupled, and then weaken the magnetic field around principal communication antenna 20 and reduce the field of principal communication antenna 20
By force, so that field strength is directly proportional to SAR value, when field strength reduces, then SAR value reduces, i.e., anti-with principal communication antenna 20 by increasing
To the shunting antenna 30 of coupling, SAR value is reduced.
Further, principal communication antenna 20 is opposite with 30 current direction of antenna is shunted.
Due to principal communication antenna 20 and the current direction of antenna 30 is shunted on the contrary, and in field strength and antenna near antenna
Current related, then principal communication antenna 20 can cancel out each other with the magnetic strength shunted near antenna 30, reduce principal communication antenna 20 and divide
Field strength near current antenna 30.Preferred embodiment is that main communication antenna 20 is arranged in parallel with shunting antenna 30, and coupling effect is best.
Principal communication antenna 20 and shunting antenna 30 can be arranged in the same end of circuit board 10, and principal communication antenna 20 and shunting antenna 30
End it is parallel, can be realized principal communication antenna 20 with shunt 30 current direction of antenna it is opposite.
Due to shunting the current direction of antenna 30 and principal communication antenna 20 on the contrary, shunting antenna 30 and principal communication antenna 20
It is arranged in parallel and direction of routing by changing feed pin and shorting pin on the contrary, can change the direction of routing of antenna, shunting
Antenna 30 and principal communication antenna 20 generate reverse coupling effect and reduce field strength near principal communication antenna 20, field strength and SAR at
Direct ratio then further decreases SAR value.
Further, shunting antenna 30 can be used as function antenna and be communicated.Shunt antenna 30 can be used as function antenna into
The additional function of communication terminal, such as GPRS, broadcast, the function of rich communication terminal on the basis of reducing SAR are realized in row communication
Energy.
Further, antenna 30 is shunted to be located in the electromagnetic wave absorption rate SAR hot spot region of the principal communication antenna 20.
Since the SAR value of principal communication antenna 20 has a hot spot region, the larger effect for reducing SAR value of SAR value is preferable in the area.
The relative distance shunted between antenna 30 and principal communication antenna 20 is preferably less than 30mm.
Further, antenna 30 and the principal communication antenna 20 are shunted in the electro-magnetic wave absorption ratio of the principal communication antenna 20
It is worth SAR hot spot region interior resonance.When primary antenna SAR value is higher, principal communication antenna 20 and shunting antenna 30 generate resonance, improve
Principal communication antenna 20 and the coupling efficiency for shunting antenna 30, further decrease SAR value.
The present invention also proposes a kind of antenna arrangement method, comprising:
It is arranged and the mutually opposing shunting coupled of the principal communication antenna in one end that circuit board is provided with principal communication antenna
Antenna；
Shunting antenna is oppositely arranged with principal communication antenna and current direction is opposite.
Due to principal communication antenna and the current direction of antenna is shunted on the contrary, and the electric current in field strength and antenna near antenna
Related, then principal communication antenna can cancel out each other with the field strength shunted near antenna, reduce principal communication antenna and shunt near antenna
Field strength.Preferred embodiment is that main communication antenna is identical as the size of current of antenna is shunted, and coupling effect is best.It can be by principal communication day
The same end of circuit board is arranged in line and shunting antenna, and principal communication antenna is parallel with the end of antenna is shunted, and master can be realized
Communication antenna is contrary with antenna current is shunted.
And the SAR of antenna are as follows:, E is the field strength by excitation object in space, and σ is by excitation object
Conductivity, ρ are by the density of excitation object.
Illustrate that the SAR of antenna is directly proportional to the field strength near it, field strength reduce when SAR value reduce, then due to
Increase near principal communication antenna and move towards opposite shunting antenna with it, reduces the field strength near principal communication antenna, further
Reduce SAR value.
The terminal for the reduction electromagnetic wave absorption rate that the present embodiment proposes passes through the setting near principal communication antenna and its
The shunting antenna of reverse coupled, and then weaken the magnetic field around principal communication antenna and reduce the field strength of principal communication antenna, so that field
Directly proportional to SAR value by force, when field strength reduces, then SAR value reduces, i.e., by increasing the shunting with principal communication antenna reverse coupled
Antenna reduces SAR value.
Further, antenna being shunted to be communicated as function antenna, shunting antenna can be used as function antenna and be communicated,
Realize the additional function of communication terminal, such as GPRS, broadcast, the function of rich communication terminal on the basis of reducing SAR.
Further, main shunting antenna is located in the electromagnetic wave absorption rate SAR hot spot region of principal communication antenna.Due to master
The SAR value of communication antenna has a hot spot region, and the larger effect for reducing SAR value of SAR value is preferable in the area.Shunt antenna
Relative distance between principal communication antenna is preferably less than 30mm.
Further, antenna and the principal communication antenna are shunted in the electromagnetic wave absorption rate SAR of the principal communication antenna
Hot spot region interior resonance.When primary antenna SAR value is higher, principal communication antenna and shunting antenna generate resonance, improve principal communication
Antenna and the coupling efficiency for shunting antenna, further decrease SAR value.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all utilizations
Equivalent structure transformation made by description of the invention and accompanying drawing content is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (5)
1. a kind of terminal for reducing electromagnetic wave absorption rate, including circuit board and the principal communication antenna of circuit board one end is set,
It is characterized in that, further include the shunting antenna that circuit board the same end is arranged in principal communication antenna, the principal communication antenna with point
Current antenna is oppositely arranged and mutually opposing coupling, the electromagnetic wave absorption rate for shunting antenna and being located at the principal communication antenna
In SAR hot spot region, the shunting antenna is less than 30mm, the shunting antenna with the relative distance communicated between primary antenna
The additional function of terminal is realized as function antenna, the additional function includes GPRS and broadcast.
2. terminal according to claim 1, which is characterized in that the principal communication antenna and shunting antenna current direction phase
Instead.
3. terminal according to claim 1, which is characterized in that the shunting antenna and the principal communication antenna are in the master
The electromagnetic wave absorption rate SAR hot spot region interior resonance of communication antenna.
4. a kind of antenna arrangement method characterized by comprising
It is arranged and the mutually opposing shunting antenna coupled of the principal communication antenna in one end that circuit board is provided with principal communication antenna；
The shunting antenna and the principal communication antenna are oppositely arranged and current direction is on the contrary, the shunting antenna is located at the master
In the electromagnetic wave absorption rate SAR hot spot region of communication antenna, the shunting antenna with it is described communicate it is opposite between primary antenna
Distance is less than 30mm, and the additional function for shunting antenna and realizing terminal as function antenna, the additional function includes GPRS
And broadcast.
5. according to the method described in claim 4, it is characterized in that, the shunting electric wire and the primary antenna are in the principal communication
The electromagnetic wave absorption rate SAR hot spot region interior resonance of antenna.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310183150.6A CN104167590B (en) | 2013-05-17 | 2013-05-17 | Reduce the terminal and antenna arrangement method of electromagnetic wave absorption rate |
| PCT/CN2013/081171 WO2014183342A1 (en) | 2013-05-17 | 2013-08-09 | Terminal and antenna layout method for reducing specific absorption rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310183150.6A CN104167590B (en) | 2013-05-17 | 2013-05-17 | Reduce the terminal and antenna arrangement method of electromagnetic wave absorption rate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104167590A CN104167590A (en) | 2014-11-26 |
| CN104167590B true CN104167590B (en) | 2019-07-12 |
Family
ID=51897618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310183150.6A Active CN104167590B (en) | 2013-05-17 | 2013-05-17 | Reduce the terminal and antenna arrangement method of electromagnetic wave absorption rate |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104167590B (en) |
| WO (1) | WO2014183342A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105552532B (en) * | 2016-01-27 | 2018-12-04 | 北京海杭通讯科技有限公司 | A kind of antenna of low electromagnetic absorption ratio |
| CN112350047B (en) * | 2019-08-06 | 2022-07-12 | 华为技术有限公司 | Wearable equipment |
| CN112968285A (en) * | 2021-02-02 | 2021-06-15 | 维沃移动通信有限公司 | Electronic device |
| CN116613509A (en) * | 2022-02-09 | 2023-08-18 | Oppo广东移动通信有限公司 | Antenna device and electronic equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738584A (en) * | 2012-06-15 | 2012-10-17 | 中兴通讯股份有限公司 | Terminal antenna for reducing specific absorption rate (SAR) of data card and molding method of terminal antenna |
| CN102810126A (en) * | 2012-07-18 | 2012-12-05 | 上海交通大学 | Method for reducing specific absorption rate (SAR) of multiple input multiple output (MIMO)-user equipment (UE) and simulation system thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8909282B2 (en) * | 2011-03-04 | 2014-12-09 | Qualcomm Incorporated | Systems and methods for dynamic transmission power limit back-off for specific absorption rate compliance |
| CN103001005B (en) * | 2012-10-25 | 2014-12-17 | 中兴通讯股份有限公司 | Device and mobile terminal for lowering specific absorption rate of electromagnetic radiation |
| CN103067038B (en) * | 2013-01-05 | 2017-08-18 | 中兴通讯股份有限公司 | A kind of mobile terminal and the method for reducing specific absorption rate |
-
2013
- 2013-05-17 CN CN201310183150.6A patent/CN104167590B/en active Active
- 2013-08-09 WO PCT/CN2013/081171 patent/WO2014183342A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738584A (en) * | 2012-06-15 | 2012-10-17 | 中兴通讯股份有限公司 | Terminal antenna for reducing specific absorption rate (SAR) of data card and molding method of terminal antenna |
| CN102810126A (en) * | 2012-07-18 | 2012-12-05 | 上海交通大学 | Method for reducing specific absorption rate (SAR) of multiple input multiple output (MIMO)-user equipment (UE) and simulation system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104167590A (en) | 2014-11-26 |
| WO2014183342A1 (en) | 2014-11-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9966655B2 (en) | Antenna structure and mobile terminal device | |
| US9112540B2 (en) | Communication apparatus and communication system | |
| CN105655701B (en) | Antenna assembly and mobile terminal | |
| CN104167590B (en) | Reduce the terminal and antenna arrangement method of electromagnetic wave absorption rate | |
| CN104466392B (en) | Antenna assembly, electronic equipment and the method for setting antenna assembly | |
| CN102510295B (en) | Reduce the wireless terminal of SAR peak value and reduce the method for SAR peak value | |
| CN105450797B (en) | Cell phone rear cover | |
| CN204391262U (en) | Anneta module | |
| CN204596941U (en) | The mobile device of configuration near field antenna and metal shell | |
| CN104752824A (en) | Antenna structure and wireless communication device applying antenna structure | |
| CN105161819A (en) | Rfid antenna structure | |
| CN103928991B (en) | Magnetic resonance wireless electric energy transmission device based on PCB resonance coupling coil structures | |
| EP2660986B1 (en) | Wireless terminal | |
| CN102780072B (en) | Antenna assembly capable of reducing specific absorption rate of electromagnetic wave | |
| CN205985326U (en) | Metal casing , antenna device and mobile terminal | |
| CN206864624U (en) | The near-field communication aerial and electronic equipment of individual pen form | |
| CN208570907U (en) | A kind of 5G Mid Frequency small size PCB antenna | |
| CN106094984B (en) | A kind of distance sensing device and smart machine of smart machine | |
| CN206472169U (en) | Board structure of circuit, antenna assembly and mobile terminal | |
| CN104253309A (en) | Wireless communication device | |
| CN206022629U (en) | Mobile terminal | |
| US20150237745A1 (en) | Data card and data interaction system | |
| CN204315720U (en) | Antenna | |
| CN203387699U (en) | Heating plate having no electromagnetic radiation | |
| CN105556743B (en) | A kind of electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |