CN1306654C - Mobile communication terminal built-in antenna - Google Patents
Mobile communication terminal built-in antenna Download PDFInfo
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- CN1306654C CN1306654C CNB011404523A CN01140452A CN1306654C CN 1306654 C CN1306654 C CN 1306654C CN B011404523 A CNB011404523 A CN B011404523A CN 01140452 A CN01140452 A CN 01140452A CN 1306654 C CN1306654 C CN 1306654C
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Abstract
The present invention relates to a built-in aerial used for a mobile communication terminal, which comprises a conductive body unit (101), an antenna unit (102) and an antenna parasitic unit (103), wherein the conductive body unit (101) is composed of a printed circuit board, and the top of the conductive body unit is provided with a metal layer stripping area; the antenna unit (102) is composed of a printed circuit board, and the top of the conductive body unit is vertically connected with the metal layer stripping area; the antenna unit is provided with an earthing foot and a feeding foot; one end of the antenna parasitic unit (103) is connected with the antenna unit, and the other end is spaced with the antenna unit and is parallel to the antenna unit. The antenna has small volume, and can effectively work at the frequency band of GSM/DCS. The present invention has moderate gain and low SAR.
Description
Technical field
The present invention relates to the antenna of mobile communication terminal, relate in particular to the terminal built-in antenna in the GSM/DCS double frequency mobile communication system.
Background technology
Fast development along with mobile communication technology; and the extensive use of mobile communication system; as the end product of mobile communication system, mobile phone is towards developing to miniaturization, multimodeization (compatible GSM900/DCS1800, PCS, IS-95 and 3G on the horizon system simultaneously) and the direction of high performance.
For the mobile communication terminal manufacturer, radio frequency (RF) partly, baseband portion and Digital Signal Processing (DSP) part, up to the present all realize the integrated of high level very, effectively promoted the miniaturization and the cost degradation of mobile communication terminal device.Have the antenna feeder part only, the antenna part of mobile communication terminal particularly, because of its performance, physical dimension are subjected to mobile communication terminal structure, profile size, electronic devices and components installation site and mobile communication terminal shell material Effect on Performance, technological progress is very slow, cause present mobile communication terminal antenna integrated level still lower, price is also higher, has restricted further developing of mobile communication terminal technology.The while mobile communication combines with computer network, and in following multimode mobile communication terminal technology, this problem will be more outstanding.
On the other hand, along with the reinforcement of people to mobile communication terminal hazards of electromagnetic radiation human body understanding, the user requires more and more consumingly under the prerequisite that does not reduce existing mobile communication terminal device performance, and mobile communication terminal must have low electromagnetic radiation index.The general mobile communication terminal external antenna technology of Cai Yonging, in principle, what all adopt is that structure is symmetric antenna and combination thereof, its radiation directivity of this antenna also is symmetry, thereby is the above-mentioned requirements that at all can't satisfy the user.
A kind of antenna technology that the built-in aerial technology just really produces under this demand.The configuration design that built-in aerial not only can make mobile communication terminal more freely, size is littler, can also realize lower signal specific absorptance (SAR) and higher peak gain (Peak Gain), and built-in aerial can also be realized aerial array in relatively little volume.Can predict, built-in aerial is the developing direction of future mobile communications terminal antenna.
Yet existing plane built-in aerial all is to manufacture and design in the plane of a bidimensional, owing to only two design freedoms are arranged, causes having following shortcoming:
1. volume is excessive, can't be used for the very tight miniaturization mobile communication terminal (such as small handsets) of dimensional requirement;
2. the built-in aerial installation needs bracing frame or need be connected on the housing, has both increased production cost, has reduced reliability and maintainability again;
3. electrical performance indexes is lower, and is higher such as voltage standing wave ratio in the band, influenced antenna efficiency, increased the power consumption of mobile phone.
Summary of the invention
The objective of the invention is in order to overcome the shortcoming of above-mentioned prior art, a kind of mobile communication terminal built-in antenna with three-D space structure that is applicable to mobile communication terminal is provided.
According to an aspect of the present invention, provide a kind of mobile communication terminal built-in antenna, this built-in aerial comprises conductor element, is made of a printed circuit board, and a metal level stripping area is arranged at the top of described conductor element; Antenna element is made of a printed circuit board, and with vertical connection of metal level stripping area at described conductor element top, described antenna element has grounding leg and the feed pin that links to each other with circuit in the described mobile communication terminal; Antenna parasitic element, one end are installed in described antenna element one side, the other end and described antenna element another side interval and parallel.
Wherein, antenna element can be rectangular substantially, and it has first long side that links to each other with conductor element, second long side away from conductor element relative with first long side, and a pair of first and second relative short sides; And can there be an etched area that is " C " shape at second middle part of antenna element, the opening of its " C " shape is towards the second short side, this etch areas is from the middle part of second long side of described antenna element, first long side to antenna element extends, extend to the first short side then, extend to first long side again, extend to the second short side, and at afterbody to the second long side projection.
According to a further aspect in the invention, provide a kind of mobile communication terminal that has according to above-mentioned mobile communication terminal built-in antenna, wherein this mobile communication terminal comprises a ground plate, and described ground plate is used as conductor element.
Description of drawings
Fig. 1 is the front view of mobile communication system terminal built-in aerial according to an embodiment of the invention;
Fig. 2 is the left view of the built-in aerial of mobile communication system terminal according to an embodiment of the invention shown in Figure 1;
Fig. 3 is the bottom view of the antenna element of mobile communication system terminal built-in aerial according to an embodiment of the invention;
Fig. 4 is the antenna element of mobile communication system terminal built-in aerial according to an embodiment of the invention and the front view of parasitic element;
Fig. 5 is an antenna element principle isoboles;
Fig. 6 is the antenna element of mobile communication system terminal built-in aerial according to an embodiment of the invention and the bottom view of parasitic element;
Fig. 7 is the antenna element of mobile communication system terminal built-in aerial according to an embodiment of the invention shown in Figure 6 and the front view of parasitic element;
Fig. 8 is the part of the conductor element of mobile communication system terminal built-in aerial according to an embodiment of the invention, is used to show the annexation of conductor part and antenna element;
Fig. 9 is the part of the antenna element and the conductor element of mobile communication system terminal built-in aerial according to an embodiment of the invention, is used to show the annexation of conductor part and antenna element;
Figure 10 is a mobile communication system terminal built-in aerial voltage standing wave ratio test curve according to an embodiment of the invention;
Figure 11 is a mobile communication system terminal built-in aerial 900Mhz E face directional diagram test curve according to an embodiment of the invention;
Figure 12 is a mobile communication system terminal built-in aerial 900Mhz H face directional diagram test curve according to an embodiment of the invention;
Figure 13 is a mobile communication system terminal built-in aerial 1800Mhz E face directional diagram test curve according to an embodiment of the invention;
Figure 14 is the perspective view of mobile communication system terminal built-in aerial according to an embodiment of the invention.
Embodiment
Below with reference to the accompanying drawings, in conjunction with the embodiments, describe the present invention.
Fig. 1 is the front view of mobile communication system terminal built-in aerial according to an embodiment of the invention.Fig. 2 is the left view of the built-in aerial of mobile communication system terminal according to an embodiment of the invention shown in Figure 1.As illustrated in fig. 1 and 2, mobile communication system terminal built-in aerial of the present invention is made up of three parts: conductor element 101, antenna element 102 and antenna parasitic element 103.
Fig. 3 is the bottom view of the antenna element 102 of mobile communication system terminal built-in aerial according to an embodiment of the invention.Press close at antenna element 102 on the long limit of a side of conductor element 101 to have three pin, be followed successively by grounding leg 204, feed pin 205 and feet 206.Grounding leg 205 links to each other with the earth terminal of mobile communication terminal, and feed pin 205 links to each other with the internal circuit of mobile communication terminal to be used for transmitting and receives and send signal.More than three pin link to each other with 209 (as shown in phantom in Figure 3) with three conduction bands 207,208 of end face respectively.As shown in Figure 3, the conduction band 207 that links to each other with grounding leg 204 by connecting the ground metallization hole on antenna element 102 two sides, links to each other with the earth point 201 of antenna element 102 bottom surfaces; The conduction band 208 that links to each other with feed pin 205 by connecting the feed plated-through hole on antenna element 102 two sides, links to each other with the distributing point 202 of antenna element 102 bottom surfaces.
As shown in Figure 3, there is an etch areas 211 that roughly is " C " shape at the middle part, bottom surface of antenna element 102, this etch areas 211 is from the middle part of antenna element 102 away from the long limit of conductor element 101 1 sides, earlier downwards, extend to the left then, downward again, extend to the right, and at afterbody to long limit projection away from conductor element 101 1 sides.
Fig. 4 is the antenna element of mobile communication system terminal built-in aerial according to an embodiment of the invention and the front view of parasitic element.As shown in the figure, antenna parasitic element 103 is coupled at the end face of antenna element 102, then along the right side of antenna element 102 through two bendings, extend into parallel but do not contact with the bottom surface of antenna element 102.
Principle to mobile communication terminal built-in antenna of the present invention is described below.Three parts of mobile communication terminal built-in antenna of the present invention, i.e. conductor element 101, antenna element 102 and antenna parasitic element 103, fellowship is finished the conversion of electromagnetic wave and high-frequency current.
The effect of conductor element 101 is and antenna element 102 and the parasitic element 103 common conversion open architectures that constitute electromagnetic wave and high-frequency current, makes the electromagenetic wave radiation/reception of antenna element 102 and parasitic element 103 have directionality simultaneously.
The etching pattern of antenna element 102 bottom surfaces has formed the electromagnetic resonator of two parallel connections, and its effect is that carrier signal is carried out frequency-selecting, is the bandwidth requirement that can reach GSM900 and DCS1800 to its requirement, and low loss is arranged simultaneously.The joint of described two electromagnetic resonator in parallel is at distributing point 202 places, shared same distributing point.
Fig. 5 is an antenna element principle isoboles.As shown in Figure 5, the open electric circuit that does not wait in distributing point 202 both sides two segment length.Suppose that the conduction band LA length from distributing point 202 to one section long summit is La, the conduction band LB length from distributing point 202 to one section short summit is Lb.In order to make two resonators can be operated in GSM900 and DCS1800 frequency range, their geometry must satisfy: the length that geometry showed will satisfy the resonator condition, i.e. quarter-wave guide wavelength condition.For this reason, La and Lb should satisfy:
Wherein, La, λ
1, ε
Re1Be respectively the length of conduction band LA, the effective dielectric constant of medium below GSM900 operation wavelength and the conduction band LA; Lb, λ
2, ε
Re2Be respectively the length of conduction band LB, the effective dielectric constant of medium below DCS1800 operation wavelength and the conduction band LB.
As mentioned above, having formed two electromagnetic resonance loops on antenna element 102, also is LA and LB, and their difference resonance is at two working frequency range (GSM900/DCS1800).But, the high-frequency current of low frequency end (GSM900 frequency range), 102 distributing point places present higher reactance at antenna element, so the standing-wave ratio of antenna is very high on GSM900, cause built-in aerial lower in this frequency range radiation efficiency.The antenna parasitic element 103 of built-in aerial of the present invention is just in order to address this problem.
Below just in conjunction with one embodiment of the present of invention, the present invention is described further.
Fig. 6 is the antenna element of mobile communication terminal built-in antenna according to an embodiment of the invention and the bottom view of parasitic element.As shown in Figure 6, in this embodiment, in the etching pattern of the bottom surface of antenna element 102, the leftmost edge of etched area 211 openings is to the distance L 1=20.0mm on the left side of antenna element 102 on away from the long limit of conductor element 101 1 sides; The distance L 2=14.0mm on the edge, the right of described etched area 211 openings to the right of antenna element 102; The distance L 3=5.5mm on edge, etched area 211 leftmost side to the left side of antenna element 102; Etched area 211 the most to the left the right side edge of projection to the distance L 4=6.5mm on the left side of antenna element 102; The distance L 5=21.0mm on edge, the right to the left side of antenna element 102 of etched area 211 openings on away from the long limit of conductor element 101 1 sides; The root of etched area 211 terminal processes is to the distance L 6=22.2mm on the left side of antenna element 102; Distributing point 202 is to the distance L 7=3.8mm on antenna element 102 left sides; Earth point 201 is to the distance L 8=1.5mm on antenna element 102 left sides; The distance L 9=6.5mm on edge, etched area 211 rightmost side to the right of antenna element 102; Feet 206 and corresponding conduction band 209 are to the distance L 11=2.0mm on antenna element 102 the right.
As shown in Figure 6, distributing point 202 to antenna element 102 to the long limit of a side of conductor element 101 apart from w1=2.1mm; Earth point 201 to antenna element 102 to the long limit of a side of conductor element 101 apart from w2=5.9mm; Antenna parasitic element 103 to conductor element 101 1 lateral edges to antenna element 102 to the long limit of a side of conductor element 101 apart from w3=0mm; Antenna parasitic element 103 away from conductor element 101 1 lateral edges to antenna element 102 to the long limit of a side of conductor element 101 apart from w4=6.0mm; The top of etched area 211 terminal processes to antenna element 102 to the long limit of a side of conductor element 101 apart from w5=5.5mm; Etched area 211 away from the outer rim of conductor element 101 1 sides to antenna element 102 to the long limit of a side of conductor element 101 apart from w6=5.0mm; Etched area 211 away from the inner edge of conductor element 101 1 sides to antenna element 102 to the long limit of a side of conductor element 101 apart from w7=4.7mm; Etched area 211 near the inner edge of conductor element 101 1 sides to antenna element 102 to the long limit of a side of conductor element 101 apart from w8=2.6mm; Etched area 211 near the outer rim of conductor element 101 1 sides to antenna element 102 to the long limit of a side of conductor element 101 apart from w9=2.2mm.
Fig. 7 is the antenna element of mobile communication system terminal built-in aerial according to this embodiment of the invention shown in Figure 6 and the front view of parasitic element.As shown in Figure 7, the thickness H=1.0mm of antenna element 102; The width wf=1.5mm of the conduction band 208 that links to each other with distributing point 202; The width wg=1.5mm of the conduction band 207 that links to each other with earth point 201; Antenna parasitic element 103 in the antenna element bottom surface one side left side edge to the distance L 10=14.5mm of antenna element 102 right side edge; Parallel but the discontiguous end of antenna parasitic element 103 and antenna element 102 to antenna element 102 dorsad one side apart from wj=3.0mm.
Fig. 8 is the part according to the conductor element 101 of the mobile communication terminal built-in antenna of this embodiment.Can see in the figure, with three blind holes 204 ', 205 ' and 206 ' of joining with grounding leg 204, feed pin 205 and the feet 206 of antenna element 102 respectively, the width W N1=1.0mm of blind hole.
Fig. 9 is the part according to the antenna element and the conductor element of the mobile communication terminal built-in antenna of this embodiment.As shown in Figure 9, the distance L A1=2.0mm of antenna element 102 both sides of the edge to conductor element 101 both sides of the edge; The bottom surface of antenna element 102 is to the distance W A2=4.0mm of the root edge of stripping area, conductor element 101 top 111; Antenna element 102 end faces are to the distance W A1=2.0mm of conductor element 101 apical margins; Conductor element 101 apical margins are to the distance W A3=7.0mm of the root edge of stripping area, conductor element 101 top 111.
According to this embodiment of the invention, above numerical value can have certain tolerance specific as follows: L1=20.0 ± 0.1mm, L3=5.5 ± 0.1mm, L4=6.5 ± 0.02mm, L5+L2=21.0 ± 0.1mm, L6=22.2 ± 0.1mm, L7=3.8 ± 0.02mm, L8=1.5 ± 0.02mm, L9=6.5 ± 0.02mm, L10=14.5 ± 0.02mm, L11=2.0 ± 0.02mm; W1=2.1 ± 0.02mm, w2=5.9 ± 0.02mm, w3=± 0.1mm, w4=6.0 ± 0.1mm, w5=5.5 ± 0.1mm, w6=5.0 ± 0.1mm, w vector 7=4.7 ± 0.1mm, w8=2.6 ± 0.1mm, w9=2.2 ± 0.1mm, H=1.0mm, wt=1.5 ± 0.1mm, wj=3.0 ± 0.1mm, wg=1.5 ± 0.1mm, all the other are ± 0.1mm.
The mobile communication terminal built-in antenna of the invention described above embodiment is put into the ABS plastic cover internal fixation of 98mm*40mm*16mm, be placed on the 3 dimension testing jigs.Testing jig put with antenna be installed in microwave dark room.Voltage standing wave ratio with HP8753E vector net analysis instrument test antenna.Directional diagram test and gain with antenna analysis instrument and comparative method for measuring antenna.
Figure 10 to 13 is unit for electrical property parameters test results of the mobile communication terminal built-in antenna of the embodiment of the invention.As seen from Figure 10, the mobile communication terminal built-in antenna of the embodiment of the invention can be operated in the GSM900/DCS1800 frequency range effectively.By Figure 11 to 13 as can be seen, the spatial pattern ai characteristic of built-in aerial of the present invention; At the H face; become 75 degree directions with outer normal orientation; the energy depression that 30dB is arranged; it is corresponding to human head location, equally on the E plane, corresponding to the human head location direction; the energy depression that 4dB is arranged; therefore, this curve has disclosed built-in antenna of mobile phone of the present invention and has had low SAR characteristic, promptly human body is had the certain protection effect.Further measure, can draw this antenna and have medium gain (greater than 0.5dBi).
In addition according to other embodiments of the invention, the end face of antenna element 102 and bottom surface pattern can mirror image variation, the end face of antenna element 102 and bottom surface also can be exchanged, and corresponding antenna parasitic element 103 can be in the top face parallel interval of antenna element 102.
According to another preferred embodiment, a mobile phone has been installed above-mentioned built-in aerial, and the ground connection mainboard of this mobile phone is used as the conductor element 101 of built-in aerial, and the feed pin 205 of antenna element 102 is connected electrically to the duplexer of the radio frequency part of circuit in the mobile phone.
More than be the present invention to be described, should be appreciated that the present invention is not limited only to above specific embodiment, can have multiple variation and change in conjunction with specific embodiments of the invention.For example the etching pattern of antenna element 102 can also have other to change, and also can satisfy the requirement that constitutes resonant circuit, the perhaps variation of other concrete shape distances.Without departing from the spirit of the invention, these variations and change all should be included in the protection range of claims.
Claims (15)
1. a mobile communication terminal built-in antenna comprises
Conductor element (101) is made of a printed circuit board, and a metal level stripping area (111) is arranged at the top of described conductor element;
Antenna element (102) is made of a printed circuit board, and with vertical connection of metal level stripping area at described conductor element top, described antenna element has grounding leg (204) and the feed pin (205) that links to each other with circuit in the described mobile communication terminal;
Antenna parasitic element (103), the one end is installed in the one side of described antenna element, the other end and described antenna element another side interval and parallel.
2. according to the mobile communication terminal built-in antenna of claim 1, wherein said conductor element is the ground plate of described mobile communication terminal.
3. according to the mobile communication terminal built-in antenna of claim 1, wherein said antenna element is the printed circuit board of a double-sided copper-clad.
4. according to the mobile communication terminal built-in antenna of claim 3, wherein
First face of described antenna element is printed with three conduction bands, is connected respectively to an end of described grounding leg, feed pin and antenna parasitic element;
Second mask of described antenna element has: a distributing point (202), and it links to each other with the described conduction band that is connected to the feed pin by a plated-through hole that runs through the two sides; An earth point (201), it links to each other with the described conduction band that is connected to grounding leg by the plated-through hole that another runs through the two sides.
5. according to the mobile communication terminal built-in antenna of claim 4, wherein
Second face of described antenna element is etched and forms with the distributing point is the electromagnetic resonator of two parallel connections of joint.
6. according to the mobile communication terminal built-in antenna of claim 5, wherein
The be etched conduction band length of two electromagnetic resonator forming of second face of described antenna element is La and Lb, and La and Lb satisfy:
λ wherein
1And ε
Re1Be respectively the effective dielectric constant of medium below the conduction band that first operation wavelength and length are La; λ
2And ε
Re2Second operation wavelength and length are the effective dielectric constant of medium below the conduction band of Lb respectively.
7. according to the mobile communication terminal built-in antenna of claim 6, wherein said first operation wavelength is the operation wavelength of GSM900 frequency range correspondence, and described second operation wavelength is the operation wavelength of DCS1800 frequency range correspondence.
8. according to the mobile communication terminal built-in antenna of claim 7, wherein,
Described antenna element is rectangular substantially, and it has first long side that links to each other with conductor element, second long side away from conductor element relative with first long side, and a pair of first and second relative short sides;
There is an etched area (211) that is " C " shape at second middle part of described antenna element, the opening of its " C " shape is towards the second short side, this etch areas is from the middle part of second long side of described antenna element, first long side to antenna element extends, extend to the first short side then, extend to first long side again, extend to the second short side, and at afterbody to the second long side projection.
9. mobile communication terminal built-in antenna according to Claim 8, wherein
Distributing point is to the distance L 7=3.8mm of the first short side of antenna element;
Earth point is to the distance L 8=1.5mm of the first short side of antenna element;
The bus that links to each other with antenna parasitic element brings to the distance L 11=2.0mm of the second short side of antenna element;
Distributing point to first long side of antenna element apart from w1=2.1mm;
Earth point to first long side of antenna element apart from w2=5.9mm.
10. according to the mobile communication terminal built-in antenna of claim 9, wherein
Described second etching pattern at antenna element, the edge of the first short side of the close antenna element of etched area opening is to the distance L 1=20.0mm of the first short side of antenna element on second long side of antenna element;
The edge of the second short side of the close antenna element of described etched area opening is to the distance L 2=14.0mm of the second short side of antenna element;
Etched area the edge of the first short side of close antenna element to the distance L 3=5.5mm of the first short side of antenna element;
Etched area is lacked the distance L 4=6.5mm of the recessed edge of side to the first short side of antenna element to first of antenna element;
The edge of the close antenna element second short side of etched area opening is to the distance L 5=21.0mm of the antenna element second short side on second long side of antenna element;
The root of etched area terminal process is to the distance L 6=22.2mm of the first short side of antenna element;
The edge of the most close antenna element second short side of etched area is to the distance L 9=6.5mm of the antenna element second short side;
The top of etched area terminal process to antenna element first long side apart from w5=5.5mm;
Etched area away from the outer rim of antenna element first long side to antenna element first long side apart from w6=5.0mm;
Etched area away from the inner edge of antenna element first long side to antenna element first long side apart from w7=4.7mm;
Etched area near the inner edge of antenna element first long side to antenna element first long side apart from w8=2.6mm;
Etched area near the outer rim of antenna element first long side to antenna element first long side apart from w9=2.2mm.
11. according to the mobile communication terminal built-in antenna of claim 4, wherein said antenna parasitic element is a slice sheet metal.
12. mobile communication terminal built-in antenna according to claim 11, wherein said antenna parasitic element is connected with described antenna element first of described antenna element, directly bends parallel with described antenna element and extend at interval in second outside of described antenna element through two.
13. according to the mobile communication terminal built-in antenna of claim 12, the distal-most edge that wherein said antenna parasitic element is extended in second outside of antenna element is to the distance L 10=14.5mm of the antenna element second short side; Antenna parasitic element one end parallel with antenna element and that extend at interval to first of antenna element apart from wj=3.0mm.
14. according to the mobile communication terminal built-in antenna of claim 13, wherein
Antenna parasitic element to conductor element one lateral edges to antenna element first long side apart from w3=0mm;
Antenna parasitic element away from conductor element one lateral edges to antenna element first long side apart from w4=6.0mm.
15. a mobile communication terminal that has according to the mobile communication terminal built-in antenna of above-mentioned each claim, wherein this mobile communication terminal comprises a ground plate, and described ground plate is used as conductor element (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011404523A CN1306654C (en) | 2001-12-07 | 2001-12-07 | Mobile communication terminal built-in antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011404523A CN1306654C (en) | 2001-12-07 | 2001-12-07 | Mobile communication terminal built-in antenna |
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| CN1423365A CN1423365A (en) | 2003-06-11 |
| CN1306654C true CN1306654C (en) | 2007-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB011404523A Expired - Fee Related CN1306654C (en) | 2001-12-07 | 2001-12-07 | Mobile communication terminal built-in antenna |
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| CN (1) | CN1306654C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102647213A (en) * | 2011-02-21 | 2012-08-22 | 华为技术有限公司 | Wireless communication system and method |
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| CN100438213C (en) * | 2003-08-13 | 2008-11-26 | 宏达国际电子股份有限公司 | Vertical reverse F-shape antenna |
| CN101540432B (en) | 2009-05-08 | 2012-07-04 | 华为终端有限公司 | Antenna design method and data card veneer of wireless terminal |
| CN101540433B (en) * | 2009-05-08 | 2013-06-12 | 华为终端有限公司 | Antenna design method and data card veneer of wireless terminal |
| CN201616506U (en) | 2010-03-26 | 2010-10-27 | 华为终端有限公司 | Mobile communication antenna equipment and mobile communication terminal equipment |
| CN102171888B (en) * | 2011-04-27 | 2013-06-12 | 华为终端有限公司 | Planar antenna of wireless terminal and wireless terminal thereof |
| CN102386479B (en) * | 2011-10-21 | 2013-11-06 | 深圳市信维通信股份有限公司 | Mobile terminal, antenna device for mobile terminal and feed method |
| CN105244605A (en) * | 2015-11-09 | 2016-01-13 | 惠州Tcl移动通信有限公司 | Communication terminal for reducing antenna SAR peak value |
| CN107994345B (en) * | 2017-10-10 | 2020-11-13 | 捷开通讯(深圳)有限公司 | Antenna of mobile terminal and mobile terminal |
| CN110323573A (en) | 2019-05-14 | 2019-10-11 | 惠州Tcl移动通信有限公司 | Antenna module and communication device |
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| US5986614A (en) * | 1997-02-24 | 1999-11-16 | Murata Manufacturing Co., Ltd. | Antenna device |
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| CN102647213B (en) * | 2011-02-21 | 2015-03-11 | 华为技术有限公司 | Wireless communication system and method |
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| CN1423365A (en) | 2003-06-11 |
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