CN103078172B - Antenna with high-sensitivity induction device - Google Patents
Antenna with high-sensitivity induction device Download PDFInfo
- Publication number
- CN103078172B CN103078172B CN201310054481.XA CN201310054481A CN103078172B CN 103078172 B CN103078172 B CN 103078172B CN 201310054481 A CN201310054481 A CN 201310054481A CN 103078172 B CN103078172 B CN 103078172B
- Authority
- CN
- China
- Prior art keywords
- copper foil
- antenna
- foil layer
- induction
- inductance
- 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
Landscapes
- Details Of Aerials (AREA)
Abstract
The invention discloses an antenna with a high-sensitivity induction device. The routing range of the antenna is on one surface. The antenna comprises an induction copper foil layer and an antenna copper foil layer, wherein the induction copper foil layer is connected with the antenna copper foil layer; two surfaces of the induction copper foil layer are both coated with insulation layers, and two surfaces of the antenna copper foil layer are both coated with insulation layers; and the sensing device is suitable for the situation that the antenna routing covers one or a plurality of surfaces. According to the antenna, the antenna with the high-sensitivity induction device is separated from the antenna through the insulation layer, and the thickness of the insulation layer is small, so that influence on free space of the antenna is reduced; and the induction distance of the two copper foil layers can be greatly improved.
Description
Technical field
The present invention relates to a kind of induction installation for antenna, particularly relate to the induction installation that a kind of control antenna radiation does not affect antenna performance.
Background technology
In order to reduce the radiation injury of handheld device to human body, a sensing apparatus (SAR Sensor) usually can be increased in the handheld device.When handheld device is near human body, this sensing apparatus can automatic operation, by reducing the transmitting power of handheld device, and then to reduce in this handheld device antenna to the electromagnetic radiation of human body.At present, we increase SAR Sensor is in the handheld device all large area Copper Foil is pasted in employing method at antenna reverse side place.The employing of the method, reduces the performance of antenna at free space, have impact on the use of handheld device, particularly in the place that signal is weak.
Below sketch the operation principle of SAR Sensor:
SAR Sensor is a capacitance inductor, its capacitance C=ε (s/d), and wherein ε is a constant, and s is the area of adopted inductive material, and d is the distance between inductive material and testee.In the design, we suppose when C=a time, and inductor will control the transmitting power of handheld device, and Body SAR is not exceeded standard.Once our design is determined, then C and s determines, unique variable is exactly d.Time distance d when between inductive material and human body is infinitely-great, now C=0, inductor does not work.When d is slowly reduced to certain distance, when meeting the condition of C=a, then inductor is just started working, by reducing handheld device PA(amplifier) transmitting power, thus reach the object reducing body SAR. here we can see, when we set C be a definite value to control PA transmitting power, then the area of inductive material is larger, and the corresponding distance d that can respond to also just can be far away.
Figure 1 shows that the rough schematic of a mobile terminal, we can see in the drawings, and antenna area a is between shell and LCD display b.In order to ensure the performance of antenna, antenna area a is headroom (namely not having the ground of PCB and any device in antenna area) usually.So, when test body SAR time, due between antenna and human body except plastic casing, without any device stop, body SAR can be caused very high, very large to the electromagnetic radiation of human body.In order to reduce body SAR, traditional method for designing is exactly between antenna and human body, introduce one block of Copper Foil as SAR sensor.When test body SAR, when Sensor senses the close of human body, when meeting C=a simultaneously, it by the transmitting power of control antenna to reach the object reducing Body SAR.As shown in Figure 2, generally the distance h of sensor2 and antenna 1 is about 5mm.Distance h is less, larger to the performance impact of antenna 1.In order to make sensor2 can sense the close of human body more sensitively, the area of sensor2 can not be too small.In order to make distance of reaction farther, the area of sensor can also be expanded further.But so, the distance of sensor and antenna is more close, worsen causing the performance of free space further.In summary, traditional method for designing is all near antenna, introduce one block of Copper Foil as SAR Sensor, all inevitably causes impact on antenna in the performance of free space.
Summary of the invention
In order to overcome the defect of prior art, the invention provides a kind of antenna with high sensitive induction installation, this antenna cabling scope on one face, it comprises an induction copper foil layer and an antenna copper foil layer, described induction copper foil layer is connected with described antenna Copper Foil aspect, two surfaces of described induction copper foil layer all scribble insulating barrier, and two surfaces of described antenna Copper Foil aspect all scribble insulating barrier.
Preferably, the form fit of described induction copper foil layer and described antenna copper foil layer.
Preferably, the surface area of described induction copper foil layer exceedes described antenna copper foil layer and is covered by described antenna copper foil layer.
Preferably, described induction copper foil layer surface is provided with the inductance of two series connection, and described induction copper foil layer is divided into two segmentations by described two inductance, and described two inductance are for suppressing the high-frequency current on described induction copper foil layer.
Preferably, described thickness of insulating layer is less than 1/1000 of antenna operating wavelength.
Present invention also offers a kind of antenna with high sensitive induction installation, this antenna cabling scope is on multiple, it comprises an induction copper foil layer and an antenna copper foil layer, described induction copper foil layer is connected with described antenna Copper Foil aspect, two surfaces of described induction copper foil layer all scribble insulating barrier, and two surfaces of described antenna copper foil layer all scribble insulating barrier.
Preferably, the form fit of described induction copper foil layer and described antenna copper foil layer.
Preferably, the surface area of described induction copper foil layer exceedes described antenna copper foil layer and is covered by described antenna copper foil layer.
Preferably, described induction copper foil layer surface is provided with the inductance of two series connection, and described induction copper foil layer is divided into two segmentations by described two inductance, and described two inductance are for suppressing the high-frequency current on described induction copper foil layer.
Preferably, described thickness of insulating layer is less than 1/1000 of antenna operating wavelength.
Copper foil layer with sky linear contact lay provided by the invention is very little on the impact of antenna due to the existence of insulating barrier, so this induction installation can infinite approach antenna, reduces the free space impact of antenna; Adopt two-layer copper foil structure distance of reaction to be also greatly improved simultaneously.
Certainly, implement arbitrary product of the present invention might not need to reach above-described all advantages simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art mobile terminal;
The combination schematic diagram of the induction installation that Fig. 2 provides for prior art and antenna;
Fig. 3 is the structural representation of the embodiment of the present invention one;
Fig. 4 is the structural representation of the embodiment of the present invention two.
Embodiment
Embodiment 1
As shown in Figure 3, the invention provides a kind of antenna with high sensitive induction installation, this antenna cabling scope on one face, it comprises induction copper foil layer 4 and antenna copper foil layer 3, induction copper foil layer 4 is connected with antenna copper foil layer 3, two surfaces of induction copper foil layer 4 all scribble insulating barrier, and two surfaces of antenna copper foil layer 3 all scribble insulating barrier.
Wherein respond to the shape of copper foil layer 4 and be set to the form fit with antenna copper foil layer 3, namely the shape of this induction copper foil layer 4 and antenna copper foil layer 3 and size are consistent, and just in time cover this antenna copper foil layer 3.Like this for mobile terminal saves many free spaces, thickness of insulating layer is much smaller than 1/1000 of antenna copper foil layer 3 operation wavelength simultaneously, the distance of close like this antenna copper foil layer 3 and induction copper foil layer 4 just closely, and this induction installation is substantially identical with the shape of antenna copper foil layer 2, just very little on the impact of antenna copper foil layer 2 performance like this.Induction copper foil layer 4 surface area provided in the present embodiment also can exceed described antenna copper foil layer 3, and is covered completely by described antenna copper foil layer.
Respond to copper foil layer 4 close to antenna operating wavelength frequency 1/4 time, induction copper foil layer 4 can produce high-frequency current and impact antenna performance, the inductance of two series connection is now then set on induction copper foil layer 4 surface, in this example, the intensity of two inductance is 82nH, multilayer copper foil structure 1 is divided into two segmentations by two inductance, and two inductance of series connection are for suppressing the high-frequency current produced on this induction copper foil layer 4.The particular location of inductance will depend on the cabling of antenna.Antenna cabling is different, and the position adding inductance is also different.Need by attempting determining coilloading is the most effective to controlling electric current on which position of this induction installation.
Embodiment two
As shown in Figure 4, the invention provides a kind of antenna with high sensitive induction installation, this antenna cabling scope is on multiple, it comprises induction copper foil layer 5 and antenna copper foil layer 6, induction copper foil layer 5 is connected with antenna copper foil layer 6, two surfaces of induction copper foil layer 5 all scribble insulating barrier, and two surfaces of antenna copper foil layer 6 all scribble insulating barrier.
The coverage wherein responding to copper foil layer 5 exceedes the surface range of antenna copper foil layer 6, in this example, the cabling scope of antenna copper foil layer 6 is three faces, this induction copper foil layer 5 close to antenna operating wavelength frequency 1/4 time, for reducing this induction copper foil layer 5 to the impact of antenna, the inductance of two series connection is set on induction copper foil layer 5 surface, in this example, the intensity of two inductance is 82nH, induction copper foil layer 5 is divided into two segmentations by two inductance, and two inductance of series connection respond to the high-frequency current on copper foil layer 5 for suppressing.The particular location of inductance will depend on the cabling of antenna copper foil layer 6.Antenna copper foil layer 6 cabling is different, and the position adding inductance is also different.Need by attempting determining coilloading is the most effective to controlling electric current on which position of this induction installation.The induction copper foil surface provided in the present embodiment is long-pending also can exceed described antenna copper foil layer, and is covered completely by described antenna copper foil layer.
Thickness of insulating layer is much smaller than 1/1000 of antenna 2 operation wavelength simultaneously, distance like this near antenna copper foil layer 6 and induction copper foil layer 5 is just very little, and this induction copper foil layer 5 is substantially identical with the shape of antenna copper foil layer 6, just very little on the impact of the performance of antenna copper foil layer 6 like this
The disclosed preferred embodiment of the present invention just sets forth the present invention for helping above.Preferred embodiment does not have all details of detailed descriptionthe, does not limit the embodiment that this invention is only described yet.Obviously, according to the content of this specification, can make many modifications and variations.This specification is chosen and is specifically described these embodiments, is to explain principle of the present invention and practical application better, thus makes art technical staff understand well and to utilize the present invention.The present invention is only subject to the restriction of claims and four corner and equivalent.
Claims (8)
1. one kind has the antenna of high sensitive induction installation, this antenna cabling scope on one face, it is characterized in that, it comprises an induction copper foil layer and an antenna copper foil layer, described induction copper foil layer is connected with described antenna Copper Foil aspect, two surfaces of described induction copper foil layer all scribble insulating barrier, two surfaces of described antenna Copper Foil aspect all scribble insulating barrier, the first surface of described antenna copper foil layer contacts with the second surface of described induction copper foil layer, and described thickness of insulating layer is less than 1/1000 of antenna operating wavelength.
2. there is the antenna of high sensitive induction installation as claimed in claim 1, it is characterized in that, the form fit of described induction copper foil layer and described antenna copper foil layer.
3. have the antenna of high sensitive induction installation as claimed in claim 1, it is characterized in that, the surface area of described induction copper foil layer exceedes described antenna copper foil layer and is covered by described antenna copper foil layer.
4. there is the antenna of high sensitive induction installation as claimed in claim 2 or claim 3, it is characterized in that, described induction copper foil layer surface is provided with the inductance of two series connection, described induction copper foil layer is divided into two segmentations by described two inductance, and described two inductance are for suppressing the high-frequency current on described induction copper foil layer.
5. one kind has the antenna of high sensitive induction installation, this antenna cabling scope is on multiple, it is characterized in that, it comprises an induction copper foil layer and an antenna copper foil layer, described induction copper foil layer is connected with described antenna Copper Foil aspect, two surfaces of described induction copper foil layer all scribble insulating barrier, two surfaces of described antenna copper foil layer all scribble insulating barrier, the first surface of described antenna copper foil layer contacts with the second surface of described induction copper foil layer, and described thickness of insulating layer is less than 1/1000 of antenna operating wavelength.
6. there is the antenna of high sensitive induction installation as claimed in claim 5, it is characterized in that, the form fit of described induction copper foil layer and described antenna copper foil layer.
7. have the antenna of high sensitive induction installation as claimed in claim 5, it is characterized in that, the surface area of described induction copper foil layer exceedes described antenna copper foil layer and is covered by described antenna copper foil layer.
8. the antenna with high sensitive induction installation as claimed in claims 6 or 7, it is characterized in that, described induction copper foil layer surface is provided with the inductance of two series connection, described induction copper foil layer is divided into two segmentations by described two inductance, and described two inductance are for suppressing the high-frequency current on described induction copper foil layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310054481.XA CN103078172B (en) | 2013-02-20 | 2013-02-20 | Antenna with high-sensitivity induction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310054481.XA CN103078172B (en) | 2013-02-20 | 2013-02-20 | Antenna with high-sensitivity induction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103078172A CN103078172A (en) | 2013-05-01 |
| CN103078172B true CN103078172B (en) | 2015-03-25 |
Family
ID=48154629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310054481.XA Active CN103078172B (en) | 2013-02-20 | 2013-02-20 | Antenna with high-sensitivity induction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103078172B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6119683B2 (en) * | 2014-06-30 | 2017-04-26 | カシオ計算機株式会社 | Electronics |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020093455A1 (en) * | 2001-01-16 | 2002-07-18 | E-Mobile Israel Ltd. | Hand-held radio-frequency transceiver particularly useful as a cellular telephone handset |
| SE528088C2 (en) * | 2004-09-13 | 2006-08-29 | Amc Centurion Ab | Antenna device and portable radio communication device including such antenna device |
| US7611508B2 (en) * | 2005-08-23 | 2009-11-03 | Wisconsin Alumni Research Foundation | Floating sleeve microwave antenna for tumor ablation |
| CN102157777A (en) * | 2011-01-24 | 2011-08-17 | 中兴通讯股份有限公司 | Method and device for realizing SAR control |
| CN102590867B (en) * | 2012-02-03 | 2015-05-27 | 华为终端有限公司 | Mobile terminal |
-
2013
- 2013-02-20 CN CN201310054481.XA patent/CN103078172B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103078172A (en) | 2013-05-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10168848B2 (en) | Radiofrequency-wave-transparent capacitive sensor pad | |
| TWI489358B (en) | Wireless communication device having proximity sensor assembly | |
| JP2018078794A (en) | Systems, methods and apparatus for detection of metal objects in predetermined space | |
| US20130335258A1 (en) | Mobile communication device | |
| TWI678079B (en) | Communication device | |
| CN106229614A (en) | proximity sensing type antenna device and antenna structure thereof | |
| WO2014148954A3 (en) | Low-frequency antenna | |
| US20160056853A1 (en) | Radio-Frequency Device and Wireless Communication Device | |
| CN103078172B (en) | Antenna with high-sensitivity induction device | |
| CN203908698U (en) | Anti-electromagnetic interference temperature sensing device | |
| CN203941734U (en) | A kind of insulating radio frequency cable | |
| CN203674391U (en) | Antenna structure comprising distance inductor | |
| CN104795625A (en) | Antenna structure comprising distance sensor | |
| CN206864624U (en) | The near-field communication aerial and electronic equipment of individual pen form | |
| CN207353480U (en) | Mobile equipment | |
| CN203563060U (en) | A mobile terminal | |
| TW201324952A (en) | Antenna frame that can restrain interference between antennas | |
| CN106654571A (en) | Method and system for reducing antenna loss, antenna device and mobile terminal | |
| TWM484801U (en) | Antenna structure with proximity sensor | |
| WO2021174938A1 (en) | Electrical leakage induction element, electrical leakage detection circuit and water heater | |
| CN103474145A (en) | Shielded line capable of shielding external interference | |
| CN109273825B (en) | Electronic device | |
| JP2014517646A (en) | Antenna and wireless terminal device | |
| CN206574853U (en) | Radio frequency antenna apparatus | |
| US10320068B2 (en) | Antenna and terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |