CN104300202B - Antenna structure and wireless communication device with the antenna structure - Google Patents
Antenna structure and wireless communication device with the antenna structure Download PDFInfo
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- CN104300202B CN104300202B CN201310299498.1A CN201310299498A CN104300202B CN 104300202 B CN104300202 B CN 104300202B CN 201310299498 A CN201310299498 A CN 201310299498A CN 104300202 B CN104300202 B CN 104300202B
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- irradiation unit
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- radiation arm
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Abstract
A kind of antenna structure, coupling part including main part, the first irradiation unit, the second irradiation unit and grounding, coupling part parallel interval main part setting, first irradiation unit and the second irradiation unit are connected to and are connected to main part, and second irradiation unit interval coupling part setting, the main part and the first irradiation unit excite low frequency modal, the main part, the second irradiation unit and coupling part coupling excitation high frequency mode, and the coupling part conducts human body generation to ground to the interference signal of antenna structure.The invention further relates to a kind of wireless communication devices with the antenna structure.
Description
Technical field
The present invention relates to a kind of antennas, more particularly to one kind can reduce the antenna structure that body effect interferes antenna
And the wireless communication device with the antenna structure.
Background technique
The antenna being installed in wireless communication device is the critical elements of wireless communication device transmitting/receiving wireless signal, and wireless
Communication device, such as mobile phone when being operated by human body, such as receive and dispatch short message, receive calls or wireless networking, the effect of human body head or hand
Certain interference should can be generated to the reception of antenna, to influence reception quality.Body effect is usually table to the interference of antenna
Now to the influence of reception intensity, some mobile phones increase the biggish antenna gain structure of volume then to improve the feelings unstable in reception
Condition.However, the additional biggish antenna gain structure of volume not only increases manufacturing cost, the volume of antenna structure also will increase
And limit the design space of other components of wireless communication device.Therefore, it is controlling the volume of antenna structure and human body can be eliminated
Effect is to the project that the interference of antenna reception is still that current value must be furtherd investigate.
Summary of the invention
In conclusion can reduce human body it is necessary to provide one kind interferes the day knot impacted to antenna reception function
Structure.
In addition, there is a need to provide a kind of wireless communication device with the antenna structure.
A kind of antenna structure, the coupling part including main part, the first irradiation unit, the second irradiation unit and grounding, the coupling
The setting of conjunction portion parallel interval main part, first irradiation unit and the second irradiation unit are connected to and are connected to main part, and second
The setting of irradiation unit interval coupling part, the main part and the first irradiation unit excite low frequency modal, the main part, the second irradiation unit and coupling
Conjunction portion coupling excitation high frequency mode, and the coupling part conducts human body generation to ground to the interference signal of antenna structure.
A kind of wireless communication device, including circuit board and antenna structure, the antenna structure include feeding portion, grounding parts, master
Body portion, the first irradiation unit and the second irradiation unit, antenna structure are electrically connected and are realized with circuit board by feeding portion and grounding parts
Signal feed-in and ground connection.The antenna structure further includes the coupling part of grounding, coupling part parallel interval main part setting,
First irradiation unit and the second irradiation unit, which are connected to, is connected to main part, and the second irradiation unit interval coupling part is arranged, should
Main part and the first irradiation unit excite low frequency modal, and the main part, the second irradiation unit and coupling part coupling excite high frequency mode, and
The coupling part conducts human body generation to ground to the interference signal of antenna structure.
The antenna structure passes through coupling by the coupling part in main part and the second irradiation unit side access grounding
Influence of the body effect to antenna structure working performance can be effectively reduced in the coupling in conjunction portion.Also, since antenna structure can set
The meter stage directly designs the structure of coupling part, is not necessarily in the biggish antenna gain structure of wireless communication device additional volume,
So volume and production cost can be effectively controlled in the antenna structure.
Detailed description of the invention
Fig. 1 is the perspective view of the wireless communication device of better embodiment of the present invention.
Fig. 2 is another view stereo figure of wireless communication device shown in Fig. 1.
Fig. 3 is the another view stereo figure of wireless communication device shown in Fig. 1.
Fig. 4 is the perspective view of the antenna structure of better embodiment of the present invention.
Fig. 5 is the voltage standing wave ratio emulation testing figure of the antenna structure of better embodiment of the present invention.
Fig. 6 is total radiation power curve graph of the antenna structure of better embodiment of the present invention under 2G standard.
Fig. 7 is total radiation power curve graph of the antenna structure of better embodiment of the present invention under 3G standard.
Fig. 8 is receiving sensitivity curve graph of the antenna structure of better embodiment of the present invention under 2G standard.
Fig. 9 is receiving sensitivity curve graph of the antenna structure of better embodiment of the present invention under 3G standard.
Main element symbol description
| Wireless communication device | 200 |
| Circuit board | 110 |
| Antenna structure | 100 |
| Main part | 10 |
| Planar section | 12 |
| Raised section | 14 |
| Feeding portion | 20 |
| First grounding parts | 30 |
| Second grounding parts | 40 |
| Interconnecting piece | 50 |
| First linkage section | 52 |
| Second linkage section | 54 |
| First irradiation unit | 60 |
| First radiation arm | 62 |
| Second radiation arm | 64 |
| Third radiation arm | 66 |
| Second irradiation unit | 70 |
| 4th radiation arm | 72 |
| 5th radiation arm | 74 |
| Coupling part | 80 |
| First coupled section | 82 |
| Second coupled section | 84 |
The present invention that the following detailed description will be further explained with reference to the above drawings.
Specific embodiment
Referring to Fig. 1, the wireless communication device 200 of better embodiment of the present invention includes antenna structure 100 and circuit board
110.The antenna structure 100 is set in carrier (not shown), and is electrically connected at circuit board 110.In the present embodiment, this is wireless
Communication device 200 can for mobile phone, tablet computer or personal digital assistant (personal digital assistant,
PDA) etc..The carrier can be the shell of wireless communication device 200.
Also referring to Fig. 1 and Fig. 2, which includes main part 10, feeding portion 20, the first grounding parts 30, the
Two grounding parts 40, interconnecting piece 50, the first irradiation unit 60, the second irradiation unit 70 and coupling part 80.
Fig. 4 is please referred to, which includes planar section 12 and raised section 14.Planar section 12 is substantially in a rectangular trapezoid
Sheet body, it is substantially parallel to be set on circuit board 110.The main part 10 include connection upper bottom edge and bottom right angle waist and tiltedly
Waist.Raised section 14 is extended to form by the bottom of planar section 12 towards 110 direction of circuit board.Raised section 14 generally rectangular shaped
Angle between body, with planar section 12 is in an obtuse angle.
Fig. 3 is please referred to, the upper bottom edge edge of the laterally attached planar section 12 in main part 10 of the feeding portion 20 is simultaneously electrical
It is connected to circuit board 110.The feeding portion 20 is used for from 110 feed-in current signal of circuit board.
First grounding parts 30 and the second grounding parts 40 difference parallel interval are set to the two sides of feeding portion 20, and feeding portion
20, the first grounding parts 30 and 40 three of the second grounding parts are coplanar.First grounding parts 30 and the second grounding parts 40 are electrically connected
To the grounded part of circuit board 110, respectively main part 10 and coupling part 80 provides ground connection.
The interconnecting piece 50 is connected to the first grounding parts 30 and coplanar with planar section 12.50 parallel interval main part 10 of interconnecting piece
Planar section 12 right angle waist setting.Interconnecting piece 50 includes the first linkage section 52 and the second linkage section 54.First linkage section 52 is in
Bar shaped sheet body is simultaneously connected to second grounding parts 40, and scheduled interval is formed between planar section 12.Second linkage section 54 is in U
Shape sheet body, one end are vertically connected at end of first linkage section 52 far from the second grounding parts 40, and the other end is vertically connected at flat
Face section 12.
First irradiation unit 60 includes sequentially connected first radiation arm 62, the second radiation arm 64 and third radiation arm 66.
First radiation arm 62 is vertically connected at the raised section 14 of main part 10 and spaced and parallel in the second linkage section 54.First radiation arm 62
In rectangular sheet, development length is greater than the development length of the second linkage section 54.Second radiation arm 64 is in U-shape sheet body, one end
It is connected to the first end of the radiation arm 62 far from main part 10, the other end connects third radiation arm 66, and with planar section 12 and even
Socket part 50 is coplanar.The L-shaped sheet body of third radiation arm 66, short side are connected to the second radiation arm, long side and the first radiation arm 62
Spaced and parallel setting.Third radiation arm 66 is coplanar with the first radiation arm 62 and raised section 14.
The L-shaped sheet body of second irradiation unit 70, the 4th radiant section 72 and the 5th radiant section 74 including head and the tail connection.This
Four radiant sections 72 are vertically connected at the raised section 14 of main part 10 far from one end of the first radiation arm 62, the 5th radiant section 74 with
Raised section 14 and the spaced and parallel setting of the first radiation arm 62, and the end of the 5th radiant section 74 and third radiation arm 66 are spaced relatively
Setting.Second irradiation unit 70 is coplanar with raised section 14, the first radiation arm 62 and third radiation arm 66.
The coupling part 80 includes the first coupled section 82 and the second coupled section 84.First coupled section 82 is substantially trapezoidal in chamfer
Sheet body, and be coplanar with the interval of the planar section of main part 10 12, and bottom, upper bottom edge and the oblique waist of the first coupled section 82 point
It is not opposite with the upper bottom edge of planar section 12, bottom and oblique waist.First coupled section, 82 one end is connected to the second grounding parts 40 and leads to
Cross the ground that second grounding parts 40 are connected to circuit board 110.First coupled section 82 and planar section 12, interconnecting piece 50 and the second radiation
Arm 64 is coplanar.Second coupled section 84 is in rectangular sheet, and one end by the first coupled section 82 far from the second grounding parts 40 is towards circuit
110 direction of plate extends to form, and with the raised section of main part 10 14 and the spaced and parallel setting of the second irradiation unit 70.Second coupled section
84 is coplanar with raised section 14, the second irradiation unit 70, the first radiation arm 62 and third radiation arm 66.
In summary, which includes three planes, wherein the planar section 12 of main part 10, interconnecting piece 50, the
Two radiation arms 64 and the first coupled section 82 it is coplanar and be in the first plane；The raised section 14 of main part 10, the first radiation arm 62,
Three radiation arms 66, the second irradiation unit 70 and the second coupled section 84 are coplanar and be in the second plane, second plane and the first plane
Angle be in an obtuse angle；Feeding portion 20, the first grounding parts 30 and the second grounding parts 40 are coplanar and be in third plane, and the third is flat
Face is perpendicular to the first plane.
In the present embodiment, antenna structure 100 passes through feeding portion 20, main part 10, the first irradiation unit 60, interconnecting piece 50
And first grounding parts 30 can effectively excite low frequency modal；And pass through feeding portion 20, main part 10, the second irradiation unit 70, interconnecting piece
50, the first grounding parts 30, coupling part 80 and the second grounding parts 40 can effectively excite high frequency mode.When coupling part 80 is close to main part
It when 10, generates coupling effect and influences the transfer impedance matching properties of antenna structure 100, by adjusting the first irradiation unit 60 and the
The length of two irradiation units 70, adjustment coupling part 80 and the distance between main part 10 and the second irradiation unit 70 and size, can be effective
Enhance the reception quality of antenna structure 100.When human body is using the wireless communication device 200 for being installed with the antenna structure 100, people
The head of body and hand can generate certain interference to the craftmanship of antenna structure 100, such as generate certain interference signal,
Antenna structure 100 can effectively be conducted interference signal to ground by coupling part 80, to reduce body effect to antenna structure 100
It influences.
Referring to Fig. 5, Fig. 5 is shown when the voltage standing wave ratio (Voltage of 80 front and back of coupling part is arranged in antenna structure 100
Standing Wave Ratio, VSWR) emulation schematic diagram.Wherein, L1 and L2 is respectively that antenna structure 100 is not provided with and is arranged
When coupling part 80, two voltage standing wave ratio curves simulating.As seen from Figure 4, in the band limits of 1.71-2.17GHz
Interior, the standing wave of L2 is smaller, i.e., antenna structure 100 by be arranged coupling part 80 can have preferable impedance matching, thus have compared with
Good stability.
Please refer to Fig. 6 and Fig. 7, for the antenna structure 100 respectively second generation mobile communication technical specification (2G) standard (such as
GSM, CDMA etc.) and 3rd generation mobile communication technology (3G) standard (such as WCDMA) under carry out total radiation power (total
Radiated power, TRP) test value schematic diagram.Wherein, L3 is industry TRP standardized test value curve, and L4 is day knot
Structure 100 is placed on the TRP test value curve under the influence of human body head and hand right side, and L5 is that antenna structure 100 is placed on people
TRP test value curve under the influence of on the left of body head and hand.As can be seen that antenna structure 100 is under the influence of body effect
Radiant power it is higher, the ability for emitting wireless signal is stronger.
Fig. 8 and Fig. 9 is please referred to, carries out receiving sensitivity under 2G standard and 3G standard respectively for the antenna structure 100
The test value schematic diagram of (total isotropic sensitivity, TIS).Wherein, L6 is industry TIS standardized test value
Curve, L7 are the TIS test value curve under the influence of antenna structure 100 is placed on the right side of human body head and hand, and L8 is antenna
Structure 100 is placed on the TIS test value curve under the influence of human body head and hand left side.As can be seen that antenna structure 100 exists
Signal reception under the influence of body effect is stronger.
It is appreciated that antenna structure 100 of the invention is not limited to dual-band antenna, it can also be single-band antenna or multifrequency day
Line.Correspondingly, the shape of antenna structure 100 is also not limited to described in embodiment.
It is appreciated that the position of coupling part 80 of the invention is not limited to one in main part 10 and the second irradiation unit 70
Side also can be set in main part 10 close to the side of feeding portion 20, the first grounding parts 30 and the second grounding parts 40.
The antenna structure 100 passes through the coupling part in main part 10 and 70 side of the second irradiation unit access grounding
80, influence of the body effect to 100 working performance of antenna structure can be effectively reduced by the coupling of coupling part 80.Also, due to
Antenna structure 100 can directly design the structure of coupling part 80 in the design phase, without in wireless communication device additional volume
Biggish antenna gain structure, so volume and production cost can be effectively controlled in the antenna structure 100.
Claims (9)
1. a kind of antenna structure, including main part, the first irradiation unit and the second irradiation unit, it is characterised in that: the antenna structure
It further include the coupling part of ground connection, which is coplanar with main part interval, first irradiation unit and the second irradiation unit difference
It is connected to main part, the setting of the second irradiation unit interval coupling part, the main part and the first irradiation unit excite low frequency modal, the main body
Portion, the second irradiation unit and coupling part coupling excitation high frequency mode, and human body is generated the interference to antenna structure and believed by the coupling part
Number conduction to ground, which includes planar section, planar section sheet body in a rectangular trapezoid, the coupling part include the first coupled section and
Second coupled section, which is in the trapezoidal sheet body of chamfer, and is coplanar with the planar section interval, first coupled section
Bottom, upper bottom edge and oblique waist it is opposite with the upper bottom edge of planar section, bottom and oblique waist respectively, the main part further includes convex
Section is played, raised section is extended outward to form by a side of planar section, and the angle between raised section and planar section is in an obtuse angle, institute
It states the second coupled section to be extended outward to form by one end of the first coupled section, and blunt in one between the second coupled section and the first coupled section
Angle, second coupled section are coplanar with the raised section.
2. antenna structure as described in claim 1, it is characterised in that: the antenna structure further includes feeding portion, the first ground connection
Portion and the second grounding parts, laterally attached side of the planar section in main part far from raised section of the feeding portion, the first grounding parts
And second grounding parts difference parallel interval be set to the two sides of feeding portion, and feeding portion, the first grounding parts and the second grounding parts three
It is coplanar and be in the first plane.
3. antenna structure as claimed in claim 2, it is characterised in that: one end of first coupled section is connected to the second ground connection
Portion, second coupled section are extended outward to form by the first coupled section far from the side of the second grounding parts.
4. antenna structure as claimed in claim 3, it is characterised in that: first irradiation unit includes sequentially connected first spoke
Arm, the second radiation arm and third radiation arm are penetrated, the first radiation arm and the second radiation arm are in rectangular sheet and the interval that is parallel to each other
Setting, the first radiation arm are vertically connected at the raised section of main part, and the second radiation arm is in U-shape sheet, and both ends are separately connected the
One radiation arm and third radiation arm.
5. antenna structure as claimed in claim 4, it is characterised in that: the L-shaped sheet body of the second irradiation unit, including connect from beginning to end
The 4th radiation arm connect and the 5th radiation arm, the 4th radiation arm are vertically connected at the raised section of main part far from the first radiation arm
One end, the 5th radiation arm and raised section and the spaced and parallel setting of the first radiation arm, and the end of the 5th radiation arm and third
Radiation arm interval is oppositely arranged.
6. antenna structure as claimed in claim 5, it is characterised in that: the antenna structure further includes interconnecting piece, the interconnecting piece
Including the first linkage section and the second linkage section, first linkage section is spaced and parallel in main part, and is connected to the first grounding parts, the
Two linkage sections are in U-shape sheet body, and one end is vertically connected at the one end of the first linkage section far from the first grounding parts, and the other end vertically connects
Be connected to main part, and with the spaced and parallel setting of the first radiation arm.
7. antenna structure as claimed in claim 6, it is characterised in that: the planar section of the main part, interconnecting piece, the second radiation
First coupled section of arm and coupling part is coplanar and is in the second plane；The raised section of the main part, the first radiation arm, third spoke
The second coupled section for penetrating arm, the second irradiation unit and coupling part is coplanar and in third plane.
8. antenna structure as claimed in claim 7, it is characterised in that: first plane is flat perpendicular to the second plane, second
Angle between face and third plane is an obtuse angle, and the first plane and third plane are prolonged from the second plane to the direction of the same side
It stretches.
9. a kind of wireless communication device, including circuit board and antenna structure, which includes feeding portion, grounding parts, main body
Portion, the first irradiation unit and the second irradiation unit, antenna structure are electrically connected by feeding portion and grounding parts and circuit board and realize letter
Number feed-in and ground connection, it is characterised in that: the antenna structure further includes the coupling part of grounding, coupling part parallel interval master
The setting of body portion, first irradiation unit and the second irradiation unit are connected to and are connected to main part, and the second irradiation unit interval couples
Portion's setting, the main part and the first irradiation unit excite low frequency modal, and the main part, the second irradiation unit and coupling part coupling excitation are high
Frequency mode, and the coupling part conducts human body generation to ground to the interference signal of antenna structure, which includes planar section, should
Planar section sheet body in a rectangular trapezoid, the coupling part include the first coupled section and the second coupled section, which is in chamfer
Trapezoidal sheet body, and being coplanar with the planar section interval, bottom, upper bottom edge and the oblique waist of first coupled section respectively with plane
Section upper bottom edge, bottom and oblique waist it is opposite, the main part further includes raised section, and raised section is outside by a side of planar section
Extend to form, and the angle between raised section and planar section be in an obtuse angle, second coupled section by the first coupled section one end
It extends outward to form, and is in an obtuse angle, second coupled section and the raised section between the second coupled section and the first coupled section
It is coplanar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310299498.1A CN104300202B (en) | 2013-07-17 | 2013-07-17 | Antenna structure and wireless communication device with the antenna structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310299498.1A CN104300202B (en) | 2013-07-17 | 2013-07-17 | Antenna structure and wireless communication device with the antenna structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104300202A CN104300202A (en) | 2015-01-21 |
| CN104300202B true CN104300202B (en) | 2019-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310299498.1A Expired - Fee Related CN104300202B (en) | 2013-07-17 | 2013-07-17 | Antenna structure and wireless communication device with the antenna structure |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107230830A (en) * | 2017-05-23 | 2017-10-03 | 捷开通讯(深圳)有限公司 | A kind of mobile communication equipment and its antenna |
| CN108258399B (en) * | 2017-12-01 | 2023-12-22 | 深圳市南斗星科技有限公司 | Antenna and communication equipment |
| CN109687123A (en) * | 2018-11-26 | 2019-04-26 | 惠州Tcl移动通信有限公司 | Mobile communication equipment and its antenna |
| CN112310643B (en) * | 2020-09-03 | 2021-10-29 | 瑞声新能源发展(常州)有限公司科教城分公司 | Antenna module and terminal equipment applying same |
| CN113410622A (en) * | 2021-07-01 | 2021-09-17 | 深圳市锐尔觅移动通信有限公司 | Antenna radiator, antenna device, and electronic apparatus |
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| CN2749066Y (en) * | 2004-08-19 | 2005-12-28 | 倚天资讯股份有限公司 | Electronic apparatus with improvement of mutual interference among a plurality of groups of antennas within a device |
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| Publication number | Publication date |
|---|---|
| CN104300202A (en) | 2015-01-21 |
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