CN105591189B - The antenna for mobile phone of low SAR value - Google Patents
The antenna for mobile phone of low SAR value Download PDFInfo
- Publication number
- CN105591189B CN105591189B CN201510881057.1A CN201510881057A CN105591189B CN 105591189 B CN105591189 B CN 105591189B CN 201510881057 A CN201510881057 A CN 201510881057A CN 105591189 B CN105591189 B CN 105591189B
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- Prior art keywords
- antenna
- mobile phone
- primary antenna
- mainboard
- primary
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Classifications
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- 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
Abstract
The present invention provides a kind of antenna for mobile phone of low SAR value comprising；One shell, is arranged inside a mainboard, and the mainboard is provided with primary antenna feed point；One primary antenna, the primary antenna are PIFA antenna, are provided with two haptic elements on the PIFA antenna, the haptic element, which is bent downward, extends and connected to primary antenna feed point；One plane electromagnetic crystals EBG patch, it is set to the metal of mainboard on the ground, and it is located at below the primary antenna, pass through the connecting and disconnecting of plane electromagnetic crystals EBG patch and neighbouring metal ground, to change the radiation direction of primary antenna, achieve the purpose that control antenna for mobile phone beam position, to effectively control electromagnetic wave propagation, radiation of the antenna for mobile phone to human body direction is reduced, makes the control of antenna for mobile phone SAR value within the limits prescribed.
Description
Technical field
The present invention relates to a kind of antenna for mobile phone of low SAR value.
Background technique
Now with the development of science and technology, mobile phone deviation ultrathin, miniaturization, metallization, broadband multi-frequencyization develop, and people
Requirement to mobile phone antenna performance is higher and higher, and the performance of antenna (includes: TRP (isotropically radiated power), (total omnidirectional is sensitive by TIS
Degree), RL (return loss), Efficiency (efficiency) etc.), with the raising of handset capability, and radiation of the mobile phone to human body
It certainly will increase, these radiation are absorbed by the body, and then just producing the amount of radiation (SAR value) of human body absorption per unit area, this is certain
Justice, since the amount of radiation (SAR value) of human body absorption per unit area and the performance of antenna for mobile phone are inversely proportional, in design day
Linearly when energy, it is difficult to accomplish to guarantee that the SAR value of antenna for mobile phone is up to standard, guarantees the superperformance of antenna for mobile phone again.
Summary of the invention
It is an object of the invention to overcome the defect of the prior art, a kind of antenna for mobile phone of low SAR value is provided, is had
Structure is simple, reduces the characteristic of radiation.
The present invention is implemented as follows: a kind of antenna for mobile phone of low SAR value comprising:
One shell, is arranged inside a mainboard, and the mainboard is provided with primary antenna feed point；
One primary antenna, the primary antenna are PIFA antenna, are provided with two haptic elements on the PIFA antenna, the haptic element is downward
Bending extends and connected to primary antenna feed point；
One plane electromagnetic crystals EBG patch, is set to the metal ground of mainboard, and is located at below the primary antenna.
Plane electromagnetic crystals EBG patch of the present invention is set to the metal of mainboard on the ground, and is located at below the primary antenna, leads to
The connecting and disconnecting for crossing plane electromagnetic crystals EBG patch and neighbouring metal ground reach control to change the radiation direction of primary antenna
The purpose of antenna for mobile phone beam position reduces radiation of the antenna for mobile phone to human body direction to effectively control electromagnetic wave propagation,
Make the control of antenna for mobile phone SAR value within the limits prescribed.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is perspective view provided in an embodiment of the present invention；
Fig. 2 is side view provided by the invention.
Specific embodiment
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 description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Such as Fig. 1-Fig. 2, the embodiment of the present invention provides a kind of antenna for mobile phone of low SAR value comprising: a shell is inside set
A mainboard is set, the mainboard is provided with primary antenna feed point；One primary antenna, the primary antenna are PIFA antenna, the PIFA antenna
On be provided with two haptic elements, the haptic element, which is bent downward, extends and connected to primary antenna feed point, and primary antenna two places one are presented, and primary antenna goes
With falling parasitic element, the increased high frequency section of parasitic element institute is coupled out by slotting between signal feed and ground feed point, this
Sample increases the beamwidth of antenna, while ensure that mobile phone antenna performance, reduces influence of the handset antenna radiation to human body；
One plane electromagnetic crystals EBG patch, is set to the metal ground of mainboard, and is located at below the primary antenna, main below antenna
The plane electromagnetic crystals EBG patch of sheetmetal one piece of miniaturization of load on the ground, plane electromagnetic crystals EBG patch and neighbouring metal
Connecting and disconnecting can change the radiation direction of primary antenna, achieve the purpose that control antenna for mobile phone beam position, thus effectively
Electromagnetic wave propagation is controlled, radiation of the antenna for mobile phone to human body direction is reduced, makes the control of antenna for mobile phone SAR value in defined range
It is interior, injury of the mobile phone radiation to human body is reduced to the maximum extent.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (1)
1. a kind of antenna for mobile phone of low SAR value characterized by comprising
One shell, is arranged inside a mainboard, and the mainboard is provided with primary antenna feed point；
One primary antenna, the primary antenna are PIFA antenna, are provided with two haptic elements on the PIFA antenna, the haptic element is bent downward
Extend and connected to primary antenna feed point, the primary antenna two places one are presented, primary antenna with removing parasitic element, by signal feed
It is slotted between ground feed point to be coupled out the increased high frequency section of parasitic element institute；
One plane electromagnetic crystals EBG patch, is set to the metal ground of mainboard, and is located at below the antenna, below antenna
The plane electromagnetic crystals EBG patch of mainboard metal one piece of miniaturization of load on the ground, plane electromagnetic crystals EBG patch and neighbouring metal
The connecting and disconnecting on ground can change the radiation direction of primary antenna, achieve the purpose that control antenna for mobile phone beam position.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510881057.1A CN105591189B (en) | 2015-12-03 | 2015-12-03 | The antenna for mobile phone of low SAR value |
| PCT/CN2016/083866 WO2017092262A1 (en) | 2015-12-03 | 2016-05-30 | Low sar value cellphone antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510881057.1A CN105591189B (en) | 2015-12-03 | 2015-12-03 | The antenna for mobile phone of low SAR value |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105591189A CN105591189A (en) | 2016-05-18 |
| CN105591189B true CN105591189B (en) | 2019-06-07 |
Family
ID=55930557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510881057.1A Active CN105591189B (en) | 2015-12-03 | 2015-12-03 | The antenna for mobile phone of low SAR value |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105591189B (en) |
| WO (1) | WO2017092262A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105591189B (en) * | 2015-12-03 | 2019-06-07 | 深圳市天鼎微波科技有限公司 | The antenna for mobile phone of low SAR value |
| CN110474167B (en) * | 2019-08-26 | 2021-07-16 | 联想(北京)有限公司 | Electromagnetic wave control method and device |
| CN111969305B (en) * | 2020-09-28 | 2022-12-09 | 西安电子科技大学 | Antenna module and communication equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998035543A1 (en) * | 1997-02-11 | 1998-08-13 | Freesia Co., Ltd. | Electromagnetic wave blocking material and electromagnetic wave blocking case |
| US8754813B2 (en) * | 2010-09-27 | 2014-06-17 | Electronics And Telecommunications Research Institute | Apparatus for protecting human body from electromagnetic waves |
| CN204167479U (en) * | 2014-11-02 | 2015-02-18 | 合肥联宝信息技术有限公司 | A kind of antenna module of notebook |
| CN104953255A (en) * | 2015-05-06 | 2015-09-30 | 南京信息工程大学 | Intelligent antenna applicable to handheld equipment |
| CN105098371A (en) * | 2014-05-04 | 2015-11-25 | 联想(北京)有限公司 | Electronic device and antenna device thereof |
| CN205231236U (en) * | 2015-12-03 | 2016-05-11 | 深圳市天鼎微波科技有限公司 | Cell -phone antenna of low SAR value |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090322619A1 (en) * | 2008-06-26 | 2009-12-31 | Jani Petri Juhani Ollikainen | Performance improvement of antennas |
| TWI455404B (en) * | 2010-11-02 | 2014-10-01 | Ind Tech Res Inst | Structure for adjusting em wave penetration response and antenna structure for adjusting em wave radiation characteristic |
| CN103904415A (en) * | 2012-12-25 | 2014-07-02 | 昌泽科技有限公司 | Antenna module with high directivity |
| CN104347939B (en) * | 2013-08-05 | 2018-10-26 | 中兴通讯股份有限公司 | Multi-input multi-output antenna system and radiation absorption method |
| CN105591189B (en) * | 2015-12-03 | 2019-06-07 | 深圳市天鼎微波科技有限公司 | The antenna for mobile phone of low SAR value |
-
2015
- 2015-12-03 CN CN201510881057.1A patent/CN105591189B/en active Active
-
2016
- 2016-05-30 WO PCT/CN2016/083866 patent/WO2017092262A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998035543A1 (en) * | 1997-02-11 | 1998-08-13 | Freesia Co., Ltd. | Electromagnetic wave blocking material and electromagnetic wave blocking case |
| US8754813B2 (en) * | 2010-09-27 | 2014-06-17 | Electronics And Telecommunications Research Institute | Apparatus for protecting human body from electromagnetic waves |
| CN105098371A (en) * | 2014-05-04 | 2015-11-25 | 联想(北京)有限公司 | Electronic device and antenna device thereof |
| CN204167479U (en) * | 2014-11-02 | 2015-02-18 | 合肥联宝信息技术有限公司 | A kind of antenna module of notebook |
| CN104953255A (en) * | 2015-05-06 | 2015-09-30 | 南京信息工程大学 | Intelligent antenna applicable to handheld equipment |
| CN205231236U (en) * | 2015-12-03 | 2016-05-11 | 深圳市天鼎微波科技有限公司 | Cell -phone antenna of low SAR value |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105591189A (en) | 2016-05-18 |
| WO2017092262A1 (en) | 2017-06-08 |
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