CN101719590B - Monopole antenna and mobile communication device with same - Google Patents
Monopole antenna and mobile communication device with same Download PDFInfo
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- CN101719590B CN101719590B CN 201010042732 CN201010042732A CN101719590B CN 101719590 B CN101719590 B CN 101719590B CN 201010042732 CN201010042732 CN 201010042732 CN 201010042732 A CN201010042732 A CN 201010042732A CN 101719590 B CN101719590 B CN 101719590B
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Abstract
The invention discloses a monopole antenna and a mobile communication device with the same. The monopole antenna comprises a coupling part, a grounding part arranged opposite to the coupling part, a first radiator, a second radiator and a third radiator. The first radiator comprises a first antenna part extending out from one side of the coupling part and the second radiator comprises a second antenna part extending out from one side of the coupling part, wherein the first antenna part and the second antenna part extend out from different parts on the same side of the coupling part. A first slot is reserved between the first antenna part and the second antenna part. The third radiator extends out from one side of the grounding part to the second antenna part. A second slot is reserved between the third radiator and the coupling part, and between the third radiator and the second antenna part respectively. Because the third radiator extends out from one side of the grounding part, and the second slot is reserved between the third radiator and the coupling part, and between the third radiator and the second antenna part respectively to form slot coupling, the monopole antenna of the invention can effectively increase bandwidth, improve antenna gain and fulfil the aim of expanding the bandwidth.
Description
Technical field
The present invention relates to a kind of antenna and communicator, relate in particular to a kind of unipole antenna and have the mobile communications device of this unipole antenna.
Background technology
Along with portable terminal more and more develops towards miniaturization, broadband, many antennas, the especially arrival in 3G epoch, also higher to the frequency bandwidth requirement of antenna, the low frequency bandwidth that requires antenna is from 850MHz-960MHz, and high frequency bandwidth is from 1710MHz-2170MHz.
See also Fig. 1; It is existing a kind of unipole antenna; Comprise by going up the grounding parts 10 ' that etching forms at a circuit board 100 '; The coupling part 11 ' that is set up in parallel with grounding parts 10 ' and from extended first radiant body 12 ' of the different parts of coupling part 11 ' homonymy and second radiant body 13 ', said grounding parts 10 ' is provided with earth point 101 ', and an example of said coupling part 11 ' is provided with signal feed-in part 102 '.The low frequency bandwidth that this unipole antenna receives is that 880MHz-960MHz, high frequency bandwidth are 1710-1880MHz.So, with respect to the bandwidth of existing unipole antenna received signal, the high frequency bandwidth of the antenna that the 3G epoch use need be expanded 290MHz on the basis of existing bandwidth, and existing unipole antenna can't satisfy the frequency band requirement of 3G product.
And traditional miniature antenna theory thinks that the relative bandwidth of antenna requires to reach 5%～8%.But according to the requirement of above-mentioned 3G mobile working frequency range, 3G mobile requires the relative bandwidth of antenna to reach 15% in low-frequency range, and the high band relative bandwidth reaches 23%, considerably beyond the theoretical theoretical limits of being discussed of traditional miniature antenna.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of unipole antenna and has the mobile communications device of this unipole antenna, can increase bandwidth and can improve antenna gain simultaneously.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: a kind of unipole antenna is provided; The grounding parts, first radiant body, second radiant body and the 3rd radiant body that comprise coupling part, be oppositely arranged with said coupling part; Said first radiant body comprises by extended first antenna part of a side of said coupling part; Said second radiant body comprises that by extended second antenna part of a side of said coupling part, said first antenna part and said second antenna part extend from the different parts of said coupling part homonymy, have first slit between said first antenna part and second antenna part; Said the 3rd radiant body extends from a side of said grounding parts and towards said second antenna part, has second slit between said the 3rd radiant body and coupling part, second antenna body.
Wherein, Said the 3rd radiant body has from said grounding parts one side vertically extended first Department of Radiation and second Department of Radiation that extend horizontally away towards said second antenna part by the said first Department of Radiation end, and the width in said second slit is between 0.3mm～1mm.
Wherein, have said the 3rd slit between said coupling part and the grounding parts, said second slit is L-shaped, and an end in said second slit and said the 3rd slit connects.
Wherein, said first antenna part comprises the first radiation horizontal stripe that extend horizontally away by said coupling part one side and by the extended second radiation horizontal stripe of the terminal horizontal of the said first radiation horizontal stripe.
Wherein, vertical width of the said first radiation horizontal stripe is less than vertical width of the said second radiation horizontal stripe.
Wherein, Said second antenna part comprises the 3rd radiation horizontal stripe that extend horizontally away by said coupling part one side, by the extended straight down first radiation taeniae of said the 3rd radiation horizontal stripe end, the second radiation taeniae that extends straight up by extended the 4th radiation horizontal stripe of the said first radiation taeniae terminal horizontal, by said the 4th radiation horizontal stripe end and terminal towards the 5th radiation horizontal stripe that extend horizontally away near the coupling part direction by the second radiation taeniae; Said the 3rd radiation horizontal stripe, the first radiation taeniae, the 4th radiation horizontal stripe, the second radiation taeniae and the 5th radiation horizontal stripe form a cavity, and said first antenna position is in cavity.
Wherein, said grounding parts comprises first grounding parts that is set up in parallel with said coupling part and by second grounding parts that a lateral buckling of said first grounding parts extends upward out, has the 4th gap between said first grounding parts and said second grounding parts.
Wherein, said second grounding parts is L-shaped, and an end of said first grounding parts has earth point.
Wherein, said coupling part is L-shaped, and an end of said coupling part is provided with distributing point.
The present invention provides a kind of mobile communications device; Comprise unipole antenna; Grounding parts, first radiant body, second radiant body and the 3rd radiant body that said unipole antenna comprises coupling part, is oppositely arranged with said coupling part; Said first radiant body comprises by extended first antenna part of a side of said coupling part; Said second radiant body comprises that by extended second antenna part of a side of said coupling part, said first antenna part and said second antenna part extend from the different parts of said coupling part homonymy, have first slit between said first antenna part and second antenna part; Said the 3rd radiant body extends from a side of said grounding parts and towards said second antenna part, has second slit between said the 3rd radiant body and coupling part, second antenna body.
The invention has the beneficial effects as follows: the unipole antenna frequency band that is different from prior art is narrower; Can't satisfy the situation of the frequency band that the 3G required by electronic product wants, unipole antenna of the present invention is through extending the 3rd radiant body in grounding parts one side, and has second slit between the 3rd radiant body and coupling part, second antenna part; The coupling of formation slit; Thereby can effectively increase frequency bandwidth, improve antenna gain, reach the purpose of expansion frequency range.
Monopole antenna structure of the present invention is compact, and the volume of whole unipole antenna is little, and it is little to place electronic product to take up room, and satisfies the demand of electronic product towards the miniaturization development.
Description of drawings
Fig. 1 is the structural representation of existing a kind of unipole antenna;
Fig. 2 is the floor map of unipole antenna of the present invention;
Fig. 3 is the constitutional diagram of unipole antenna of the present invention and support;
Fig. 4 is the exploded view of unipole antenna of the present invention and support.
Embodiment
By specifying technology contents of the present invention, structural feature, realized purpose and effect, give explanation below in conjunction with execution mode and conjunction with figs. are detailed.
See also Fig. 2 and Fig. 3, grounding parts 20 and the 3rd radiant body 50 that unipole antenna of the present invention comprises coupling part 10, first radiant body (among the figure not label), second radiant body (among the figure not label), is oppositely arranged with said coupling part 10.Said first radiant body comprises that by extended first antenna part 31 of a side of said coupling part 10, said second radiant body comprises by extended second antenna part 41 of a side of said coupling part 10.Said first antenna part 31 extends from the different parts of the homonymy of said coupling part 10 with said second antenna part 41.Have first slit 101 between said first antenna part 31 and second antenna part 41, thereby form the slit coupling.Said the 3rd radiant body 50 extends from a side of said grounding parts 20 and towards 41 bendings of said second antenna part.
Said grounding parts 20 comprises first grounding parts 21 that is set up in parallel with said coupling part 10 and second grounding parts 22 that is extended upward out by a lateral buckling of said first grounding parts 21.Have L-shaped second slit 102 between said coupling part 10, second antenna part 41 and the 3rd radiant body 50, thereby form the slit coupling.The width in said second slit 102 is between 0.3mm～1mm.Have the 3rd slit 103 between said coupling part 10 and said first grounding parts 21, said second slit 102 connects with an end in said the 3rd slit 103.Has the 4th gap 104 between said first grounding parts 21 and said second grounding parts 22.Said second grounding parts 22 is L-shaped, and an end of said first grounding parts 21 has earth point 211.One end of said coupling part 10 is provided with distributing point 210.
Said first antenna part 31 comprises the first radiation horizontal stripe 311 that extend horizontally away by said coupling part 10 1 sides and by the extended second radiation horizontal stripe 312 of the terminal horizontal of the said first radiation horizontal stripe 311.Vertical width of the said first radiation horizontal stripe 311 is less than vertical width of the said second radiation horizontal stripe 312.
The 3rd radiation horizontal stripe 411 that said second antenna part 41 comprises that the side by said coupling part 10 extend horizontally away, by the terminal vertically extended first radiation taeniae 412 of said the 3rd radiation horizontal stripe 411, the second radiation taeniae 414 that extends straight up by extended the 4th radiation horizontal stripe 413 of the said first radiation taeniae, 412 terminal horizontal, by said the 4th radiation horizontal stripe 413 ends and terminal towards the 5th radiation horizontal stripe 415 that extend horizontally away near coupling part 10 directions by the second radiation taeniae 414, the different parts from the homonymy of coupling part 10 of said the 3rd radiation horizontal stripe 411 and said first antenna part 31 extend horizontally away.Said the 3rd radiation horizontal stripe 411, the first radiation taeniae 412, the 4th radiation horizontal stripe 413, the second radiation taeniae 414 and the 5th radiation horizontal stripe 415 form cavitys (being label among the figure), and said first antenna part 31 is arranged in said cavity.Vertical width of said the 3rd radiation horizontal stripe 411 is less than the longitudinal length of the said first radiation taeniae 412.
Said the 3rd radiant body 50 has from said grounding parts 20 in said first grounding parts 21 and vertical extended first Department of Radiation 51 of a side of second grounding parts, 22 interfaces, and second Department of Radiation 52 that is extend horizontally away towards said second antenna part, 41 directions by said first Department of Radiation, 51 ends.
The length of said first radiant body, second radiant body constitutes dual frequency characteristics, i.e. two resonance.The length of said the 3rd radiant body 50 constitutes high frequency characteristics; Has the 3rd slit 103 between the said coupling part 10 and first grounding parts 21; Has second slit 102 between said the 3rd radiant body 50 and said coupling part 10, second antenna body 41; Thereby form the slit coupling, reach the purpose of extending bandwidth.
See also Fig. 3 and Fig. 4; Unipole antenna of the present invention is fixed on a side of support 100 and in support 100 is placed on a mobile communications device (not shown), and the earth point 211 on the distributing point 210 on the said coupling part 10 and first grounding parts 21 is connected through distributing point, earth point on the pcb board of connector 110 and mobile communications device respectively.
The present invention has second slit 102 through extending in a side of grounding parts 20 between the 3rd radiant body 50 and the 3rd radiant body 50 and first antenna part 31, the coupling part 10; The coupling of formation slit; Thereby can effectively increase the frequency bandwidth of entire antenna, improve antenna gain.The bandwidth of unipole antenna of the present invention is 880MHz～960MHz; 1710MHz～2170MHz, than the bandwidth expansion 290MHz of existing unipole antenna at high band, the low-frequency range relative bandwidth of antenna reaches 15%; The high band relative bandwidth reaches 23%, satisfies 3G product necessary requirement.Unipole antenna RL return loss of the present invention meets the electronic product built-in aerial and uses standard less than-6dB.
Unipole antenna of the present invention is gone up etching by stainless steel material at flexible circuit board 200 (FPC) and formed, and is simple in structure, low cost of manufacture, and employed material is a common materials simultaneously, is convenient to purchase and the cost of material is low.
The unipole antenna frequency band that is different from prior art is narrower; Can't satisfy the situation of 3G electronic product requirement; The present invention is through extending the 3rd radiant body 50 in a side of grounding parts 20, and has second slit 102 between the 3rd radiant body 50 and first antenna part 31, the coupling part 10, forms the slit coupling; Thereby can effectively increase frequency bandwidth, reach the purpose of expansion frequency range.
Monopole antenna structure of the present invention is compact, and the volume of whole unipole antenna is little, and it is little to place electronic product to take up room, and satisfies the demand of electronic product towards the miniaturization development.
The above is merely embodiments of the invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. unipole antenna; It is characterized in that; Comprise coupling part, the 3rd radiant body, first radiant body, second radiant body and the grounding parts that is oppositely arranged with said coupling part; Said first radiant body comprises by extended first antenna part of a side of said coupling part; Said second radiant body comprises by extended second antenna part of a side of said coupling part; Said first antenna part and said second antenna part extend from the different parts of said coupling part homonymy, have first slit between said first antenna part and second antenna part, and said the 3rd radiant body extends from a side of said grounding parts and towards said second antenna part; Have second slit between said the 3rd radiant body and coupling part, second antenna body, said the 3rd radiant body has from said grounding parts one side vertically extended first Department of Radiation and second Department of Radiation that extend horizontally away towards said second antenna part by the said first Department of Radiation end.
2. unipole antenna according to claim 1 is characterized in that: the width in said second slit is between 0.3mm～1mm.
3. unipole antenna according to claim 1 is characterized in that: have the 3rd slit between said coupling part and the grounding parts, said second slit is L-shaped, and an end in said second slit and said the 3rd slit connects.
4. unipole antenna according to claim 1 is characterized in that: said first antenna part comprises the first radiation horizontal stripe that extend horizontally away by said coupling part one side and by the extended second radiation horizontal stripe of the terminal horizontal of the said first radiation horizontal stripe.
5. unipole antenna according to claim 4 is characterized in that: vertical width of the said first radiation horizontal stripe is less than vertical width of the said second radiation horizontal stripe.
6. unipole antenna according to claim 1; It is characterized in that: said second antenna part comprises the 3rd radiation horizontal stripe that extend horizontally away by said coupling part one side, by the extended straight down first radiation taeniae of said the 3rd radiation horizontal stripe end, the second radiation taeniae that extends straight up by extended the 4th radiation horizontal stripe of the said first radiation taeniae terminal horizontal, by said the 4th radiation horizontal stripe end and terminal towards the 5th radiation horizontal stripe that extend horizontally away near the coupling part direction by the second radiation taeniae; Said the 3rd radiation horizontal stripe, the first radiation taeniae, the 4th radiation horizontal stripe, the second radiation taeniae and the 5th radiation horizontal stripe form a cavity, and said first antenna position is in cavity.
7. unipole antenna according to claim 1; It is characterized in that: said grounding parts comprises first grounding parts that is set up in parallel with said coupling part and by second grounding parts that a lateral buckling of said first grounding parts extends upward out, has the 4th gap between said first grounding parts and said second grounding parts.
8. unipole antenna according to claim 7 is characterized in that: said second grounding parts is L-shaped, and an end of said first grounding parts has earth point.
9. unipole antenna according to claim 1 is characterized in that: said coupling part is L-shaped, and an end of said coupling part is provided with distributing point.
10. mobile communications device; It is characterized in that: comprise a unipole antenna; Said unipole antenna comprises coupling part, the 3rd radiant body, first radiant body, second radiant body and the grounding parts that is oppositely arranged with said coupling part; Said first radiant body comprises by extended first antenna part of a side of said coupling part; Said second radiant body comprises by extended second antenna part of a side of said coupling part; Said first antenna part and said second antenna part extend from the different parts of said coupling part homonymy, have first slit between said first antenna part and second antenna part, and said the 3rd radiant body extends from a side of said grounding parts and towards said second antenna part; Have second slit between said the 3rd radiant body and coupling part, second antenna body, said the 3rd radiant body has from said grounding parts one side vertically extended first Department of Radiation and second Department of Radiation that extend horizontally away towards said second antenna part by the said first Department of Radiation end.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010042732 CN101719590B (en) | 2010-01-04 | 2010-01-04 | Monopole antenna and mobile communication device with same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010042732 CN101719590B (en) | 2010-01-04 | 2010-01-04 | Monopole antenna and mobile communication device with same |
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| CN101719590A CN101719590A (en) | 2010-06-02 |
| CN101719590B true CN101719590B (en) | 2012-12-12 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102496772B (en) * | 2011-12-16 | 2014-09-03 | 上海华勤通讯技术有限公司 | FPC (flexible printed circuit) antenna |
| CN102856634B (en) * | 2012-09-20 | 2016-02-24 | 上海安费诺永亿通讯电子有限公司 | A kind of Wideband LTE antenna being applicable to notebook or panel computer |
| CN105490011A (en) * | 2014-09-17 | 2016-04-13 | 鸿富锦精密工业（深圳）有限公司 | Multiband antenna |
| CN106299616A (en) * | 2015-06-25 | 2017-01-04 | 智易科技股份有限公司 | Antenna structure |
| CN110474154A (en) * | 2019-08-08 | 2019-11-19 | 维沃移动通信有限公司 | A kind of antenna modules and electronic equipment |
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|---|---|---|---|---|
| CN2600926Y (en) * | 2002-11-08 | 2004-01-21 | 富士康(昆山)电脑接插件有限公司 | Double-frequency antenna |
| CN2706884Y (en) * | 2004-03-01 | 2005-06-29 | 富士康(昆山)电脑接插件有限公司 | Multi-frequency aerial |
| CN201146239Y (en) * | 2008-01-04 | 2008-11-05 | 富港电子（东莞）有限公司 | Multi-frequency antenna |
| CN101431179A (en) * | 2007-11-08 | 2009-05-13 | 神基科技股份有限公司 | Plane inverse-F shaped antenna with extension grounding surface |
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2010
- 2010-01-04 CN CN 201010042732 patent/CN101719590B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2600926Y (en) * | 2002-11-08 | 2004-01-21 | 富士康(昆山)电脑接插件有限公司 | Double-frequency antenna |
| CN2706884Y (en) * | 2004-03-01 | 2005-06-29 | 富士康(昆山)电脑接插件有限公司 | Multi-frequency aerial |
| CN101431179A (en) * | 2007-11-08 | 2009-05-13 | 神基科技股份有限公司 | Plane inverse-F shaped antenna with extension grounding surface |
| CN201146239Y (en) * | 2008-01-04 | 2008-11-05 | 富港电子（东莞）有限公司 | Multi-frequency antenna |
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Effective date of registration: 20201222 Address after: No.369 Jinlong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: XINWEI COMMUNICATION (JIANGSU) Co.,Ltd. Address before: 518000 Building 9, Changxing hi tech Industrial Park, shawan'an Road, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN SUNWAY COMMUNICATION Co.,Ltd. |