CN104134864A - Antenna structure and wireless communication device with antenna structure - Google Patents
Antenna structure and wireless communication device with antenna structure Download PDFInfo
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- CN104134864A CN104134864A CN201310160546.9A CN201310160546A CN104134864A CN 104134864 A CN104134864 A CN 104134864A CN 201310160546 A CN201310160546 A CN 201310160546A CN 104134864 A CN104134864 A CN 104134864A
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Abstract
The invention relates to an antenna structure, which consists of an antenna and a metal part, wherein the antenna is used for radiating electromagnetic waves, and the metal part is used for grounding; the electrical length of the metal part is greater than or equal to one fourth of the wavelength corresponding to the working frequency of the antenna; the metal part is arranged between the antenna and an interfering electronic component and is used for grounding the interfering signals generated by the interfering electronic component, and thus, the influence of the interfering signals generated by the interfering electronic component on the radiation effect of the antenna is avoided. The invention also relates to a wireless communication device with the antenna structure.
Description
Technical field
The present invention relates to a kind of antenna, relate in particular to a kind of radio communication device that interior other electronic components of radio communication device cause the antenna structure of interference to antenna and have this antenna structure that suppresses.
Background technology
In order to make antenna obtain larger frequency range, generally need the antenna structure of large-size or need circuit board to reserve larger headroom district, to avoid other to disturb electronic component, as battery, the first-class radiation to antenna of making a video recording cause interference.
Along with the miniaturization of radio communication device and the development of slimming, obviously cannot reserve too much headroom district to fix up an aerial wire.Therefore, in order to reduce the impact on antenna of interference signal that other interfering components produce, often in the circuit of these interfering components, add sense to be worth large inductance element or capacity cell, eliminate the reaction of this interfering component on frequency spectrum with this, avoid these interfering components to impact the radiation efficiency of antenna.
But, while there is situation about changing for these interfering components, as, consumer is in the time using radio communication device, tend to change different batteries, frequency spectrum reaction antenna being caused due to different batteries has difference, therefore, cannot eliminate the impact of different batteries on antenna completely by increasing the inductance of particular value or the situation of electric capacity.
Summary of the invention
For above-mentioned the deficiencies in the prior art, be necessary to provide a kind of antenna structure stronger to interference rejection capability.
Separately, be also necessary to provide a kind of radio communication device with described antenna structure.
A kind of antenna structure, comprises that the electrical length of described metalwork is more than or equal to 1/4th of described operating frequency of antenna corresponding wavelength for the antenna of radiated electromagnetic wave and the metalwork of grounding; Described metalwork is arranged at described antenna and and disturbs between electronic component, leads ground for the interference signal that described interference electronic component is produced, to suppress the impact of interference signal that described interference electronic component the produces radiation efficiency on described antenna.
A kind of radio communication device, comprise antenna structure and disturb electronic component, described antenna structure comprises that the electrical length of described metalwork is more than or equal to 1/4th of described operating frequency of antenna corresponding wavelength for the antenna of radiated electromagnetic wave and the metalwork of grounding; Described metalwork is arranged between described antenna and described interference electronic component, leads ground for the interference signal that described interference electronic component is produced, to suppress the impact of interference signal that described interference electronic component the produces radiation efficiency on described antenna.
Described antenna structure, by disturbing the metalwork that adds grounding between electronic component and antenna, can effectively suppress to disturb the impact of electronic component on antenna service behaviour.And, because the electrical length of metalwork is less than 1/4th of antenna working frequency range wavelength, so can effectively avoid metalwork self to impact the resonance of antenna, further optimize the radiation efficiency of antenna.
Brief description of the drawings
Fig. 1 is the three-dimensional assembly diagram of the radio communication device of preferred embodiments of the present invention.
Fig. 2 is the three-dimensional exploded view of radio communication device shown in Fig. 1.
Fig. 3 is the part assembly drawing of radio communication device shown in Fig. 1.
Fig. 4 is the stereogram of the antenna of the antenna structure of preferred embodiments of the present invention.
Fig. 5 is the voltage standing wave ratio emulation testing figure of the antenna structure of preferred embodiments of the present invention.
Fig. 6 is the radiation efficiency curve figure of the antenna structure of preferred embodiments of the present invention.
Main element symbol description
| Radio communication device | 100 |
| Strutting piece | 10 |
| Mainboard | 20 |
| Secondary circuit board | 30 |
| Disturb electronic component | 40 |
| Antenna structure | 50 |
| First surface | 11 |
| Second surface | 13 |
| Sidewall | 111 |
| Antenna carrier | 51 |
| Antenna | 53 |
| Feeder line | 55 |
| Metalwork | 57 |
| Department of Radiation | 531 |
| Grounding parts | 533 |
| Current feed department | 535 |
| The first grounding arm | 5331 |
| The second grounding arm | 5333 |
| Main part | 571 |
| Grounding parts | 573 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1 to Fig. 3, the radio communication device 100 of preferred embodiments of the present invention comprises strutting piece 10, mainboard 20, secondary circuit board 30, disturbs electronic component 40 and antenna structure 50.Mainboard 20, secondary circuit board 30, interference electronic component 40 and antenna structure 50 are all assemblied on strutting piece 10.
Strutting piece 10 adopts non electrically conductive material to make, as plastic material.Strutting piece 10 comprises the first surface 11 and the second surface 13 that are oppositely arranged.On first surface 11, convex with sidewall 111(as shown in Figure 2).
Mainboard 20 is arranged at intervals on first surface 11 with disturbing electronic component 40; Secondary circuit board 30 is arranged on second surface 13.Secondary circuit board 30 can be set up and is electrically connected by soft arranging wire or other bridging element with mainboard 20.Disturb electronic component 40 to be positioned at sidewall 111 1 sides.In the present embodiment, described interference electronic component 40 is battery.In other embodiments, described interference electronic component 40 also can produce for camera or other electronic component of the interference signal that antenna performance is impacted.
Antenna structure 50 comprises antenna carrier 51, antenna 53, feeder line 55 and metalwork 57.
Antenna carrier 51 is fixed on strutting piece 10, and is positioned at sidewall 111 and deviates from a side of disturbing electronic component 40.Antenna carrier 51 is for supporting and fixed antenna 53.
See also Fig. 4, antenna 53 comprises Department of Radiation 531, grounding parts 533 and current feed department 535.Department of Radiation 531 is for radiated electromagnetic wave; Grounding parts 533 groundings; Current feed department 535 is for feed-in current signal.In the present embodiment, the rectangular sheet of Department of Radiation 531.Grounding parts 533 and current feed department 535 are extended and are formed by a lateral margin interval bending of Department of Radiation 531.Grounding parts 533 comprises the first grounding arm 5331 and second grounding arm 5333 of vertical connection or substantially vertical connection.The first grounding arm 5331 is extended and is formed by one end bending of Department of Radiation 531.Angle between the first grounding arm 5331 and Department of Radiation 531 is acute angle.The lateral buckling extension that the second grounding arm 5333 deviates from current feed department 535 by the first grounding arm 5331 forms.The second grounding arm 5333 extends to secondary circuit board 30, to pass through secondary circuit board 30 ground connection.In the form of sheets, itself and the first grounding arm 5331 are coplanar for current feed department 535.
The two ends of feeder line 55 are electrically connected to respectively current feed department 535 and mainboard 20, and the electric current of exporting for feed-in mainboard 20 is to current feed department 535.
Metalwork 57 is arranged at and disturbs between electronic component 40 and antenna 53, for suppressing to disturb the impact of electronic component 40 on antenna 53 radiation efficiency.Metalwork 57 groundings, and its electrical length is not less than 1/4th of antenna 53 operation wavelengths.So, metalwork 57 can will disturb the electronic component 40 interference electromagnetic wave that produce directly lead ground, avoids interference the interference electromagnetic wave that electronic component 40 produces the radiation efficiency of antenna is exerted an influence.In addition,, because the electrical length of metalwork 57 is not less than 1/4th of antenna 53 operation wavelengths, can avoid metalwork 57 itself to produce resonance with antenna 53, thereby can avoid affecting resonance mode and the radiation efficiency of antenna 53.That is to say, metalwork 57 itself does not participate in the resonance of antenna 53.
In the present embodiment, metalwork 57 comprises main part 571 and extends the grounding parts 573(that forms as shown in Figure 3 by main part 571 one end).Main part 571 roughly in the form of sheets.Main part 571 can be arranged at sidewall 111 towards a side of disturbing a side of electronic component 40 or sidewall 111 towards antenna 53.In the present embodiment, in order to reduce metalwork 57 as far as possible, the radiation of antenna 53 is impacted, metalwork 57 is arranged at sidewall 111 towards a side of disturbing electronic component 40.For example, metalwork 57 can be set and disturb the distance between electronic component 40 is 2.5 millimeters (mm), and the distance between metalwork 57 and antenna 53 is 2mm.Grounding parts 573 is arranged on secondary circuit board 30, to pass through secondary circuit board 30 groundings.In the present embodiment, grounding parts 573 place planes are perpendicular to main part 571 place planes; Grounding parts 573 is fixed on secondary circuit board 30 by welding or other modes.Metalwork 57 can be made up of metal materials such as copper, iron, aluminium.Certainly, metalwork 57 also can adopt other metal materials to make.
Be appreciated that in other embodiments, secondary circuit board 30 also can omit, and now metalwork 57 is directly by mainboard 20 ground connection.
In the present embodiment, antenna 53 operates mainly near the Wi-Fi frequency range of 2.4GHz.Be appreciated that when antenna 53 is during for multifrequency antenna, the electrical length of metalwork 57 is preferably for to be not less than in multiple working frequency range of antenna 53,1/4th of minimum frequency range corresponding wavelength.
Refer to Fig. 5, Figure 5 shows that working as radio communication device 100 changes different interference electronic components 40, while changing different batteries, the voltage standing wave ratio of the antenna structure 50 of preferred embodiments of the present invention (Voltage Standing Wave Ratio, VSWR) emulation schematic diagram.Wherein, L1 to L4 changes after four different interference electronic components 40, and antenna structure 50 is simulated to four voltage standing wave ratio curves.As seen from Figure 5, in L1 to L4, each voltage standing wave ratio curve is more consistent in the curve trend of each resonance mode of antenna structure 50, especially in the Wi-Fi frequency range of the 2.4GHz of antenna structure 50 groundworks of present embodiment.That is to say, because the inhibition interference performance of metalwork 57 is stronger, the interference producing for different interference electronic components 40, all can carry out corresponding inhibition, makes antenna structure 50 working stabilities.
Incorporated by reference to consulting Fig. 6 and table 1, Figure 6 shows that working as radio communication device 100 changes different interference electronic components 40, while changing different batteries, the radiation efficiency curve of the antenna structure 50 of preferred embodiments of the present invention; And table 1 is depicted as for same interference electronic component 40, is not adding metalwork 57 and adding under metalwork 57 both of these cases, the radiation efficiency of the antenna structure 50 simulating.In Fig. 6, L5 to L8 changes after four different interference electronic components 40, four radiation efficiency curve that antenna structure 50 is simulated.As seen from Figure 5, for different interference electronic components 40, the radiation efficiency under 2.4GHz-2.5GHz frequency range of antenna structure 50 is substantially all more than 50%., as can be seen from Table 1, add after metalwork 57, for same interference electronic component 40, due to the inhibitory action of metalwork 57, the radiation efficiency of antenna structure 50 under 2.4GHz-2.5GHz frequency range had obvious lifting meanwhile.
Table 1
| Frequency (MHz) | 2400 | 2410 | 2420 | 2430 | 2440 | 2450 | 2460 | 2470 | 2480 | 2490 | 2500 |
| Use the front efficiency (%) of metalwork | 49.95 | 57.14 | 61.23 | 64.43 | 64.83 | 62.08 | 55.90 | 48.75 | 41.39 | 34.85 | 28.46 |
| Use metalwork behind efficiency (%) | 51.69 | 58.51 | 63.01 | 66.85 | 68.39 | 68.29 | 64.10 | 58.81 | 55.98 | 51.45 | 47.02 |
Described antenna structure 50, by disturbing the metalwork 57 that adds grounding between electronic component 40 and antenna 53, can effectively suppress to disturb the impact of electronic component 40 on antenna 53 service behaviours.And, because the electrical length of metalwork 57 is less than 1/4th of antenna 53 working frequency range wavelength, so can effectively avoid metalwork 57 self the resonance of antenna 53 to be impacted, further optimize the radiation efficiency of antenna 53.
Claims (10)
1. an antenna structure, comprises the antenna for radiated electromagnetic wave, it is characterized in that: described antenna structure also comprises the metalwork of grounding, and the electrical length of described metalwork is more than or equal to 1/4th of described operating frequency of antenna corresponding wavelength; Described metalwork is arranged at described antenna and and disturbs between electronic component, leads ground for the interference signal that described interference electronic component is produced.
2. antenna structure as claimed in claim 1, is characterized in that: described metalwork comprises main part and by the vertical grounding parts forming that extends in main part one end, described main part in the form of sheets; Described grounding parts grounding, described grounding parts place plane is perpendicular to main part place plane.
3. antenna structure as claimed in claim 1, is characterized in that: described antenna comprises Department of Radiation, grounding parts and current feed department, and described grounding parts and current feed department are extended and formed by a lateral margin interval bending of described Department of Radiation.
4. antenna structure as claimed in claim 3, is characterized in that: described grounding parts comprises the first grounding arm and second grounding arm of vertical connection or substantially vertical connection; Described the first grounding arm is extended and is formed by one end bending of described Department of Radiation; The lateral buckling extension that described the second grounding arm deviates from described current feed department by described the first grounding arm forms.
5. antenna structure as claimed in claim 4, is characterized in that: the angle between described the first grounding arm and Department of Radiation is acute angle; Described current feed department and described the first grounding arm are coplanar.
6. a radio communication device, comprise antenna structure and disturb electronic component, described antenna structure comprises the antenna for radiated electromagnetic wave, it is characterized in that: described antenna structure also comprises the metalwork of grounding, the electrical length of described metalwork is more than or equal to 1/4th of described operating frequency of antenna corresponding wavelength; Described metalwork is arranged between described antenna and described interference electronic component, leads ground for the interference signal that described interference electronic component is produced.
7. radio communication device as claimed in claim 6, is characterized in that: described metalwork comprises main part and by the vertical grounding parts forming that extends in main part one end, described main part in the form of sheets; Described grounding parts grounding, described grounding parts place plane is perpendicular to main part place plane.
8. radio communication device as claimed in claim 6, is characterized in that: described antenna comprises Department of Radiation, grounding parts and current feed department, and described grounding parts and current feed department are extended and formed by a lateral margin interval bending of described Department of Radiation; Described grounding parts comprises the first grounding arm and second grounding arm of vertical connection or substantially vertical connection; Described the first grounding arm is extended and is formed by one end bending of described Department of Radiation; The lateral buckling extension that described the second grounding arm deviates from described current feed department by described the first grounding arm forms.
9. radio communication device as claimed in claim 8, is characterized in that: the angle between described the first grounding arm and Department of Radiation is acute angle; Described current feed department and described the first grounding arm are coplanar.
10. radio communication device as claimed in claim 6, it is characterized in that: described radio communication device also comprises strutting piece, on described strutting piece, convex with sidewall, described interference electronic component and antenna are all arranged on described strutting piece and lay respectively at the relative both sides of described sidewall, and described metalwork is arranged at the surface of described sidewall towards described interference electronic component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310160546.9A CN104134864A (en) | 2013-05-03 | 2013-05-03 | Antenna structure and wireless communication device with antenna structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310160546.9A CN104134864A (en) | 2013-05-03 | 2013-05-03 | Antenna structure and wireless communication device with antenna structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104134864A true CN104134864A (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310160546.9A Pending CN104134864A (en) | 2013-05-03 | 2013-05-03 | Antenna structure and wireless communication device with antenna structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112563740A (en) * | 2020-12-02 | 2021-03-26 | 捷开通讯(深圳)有限公司 | Antenna structure and electronic equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101154764A (en) * | 2006-09-27 | 2008-04-02 | Lg电子株式会社 | Antenna assembly and portable terminal with the same |
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2013
- 2013-05-03 CN CN201310160546.9A patent/CN104134864A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101154764A (en) * | 2006-09-27 | 2008-04-02 | Lg电子株式会社 | Antenna assembly and portable terminal with the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112563740A (en) * | 2020-12-02 | 2021-03-26 | 捷开通讯(深圳)有限公司 | Antenna structure and electronic equipment |
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Application publication date: 20141105 |