CN103779649B - Portable electron device and antenna structure thereof - Google Patents
Portable electron device and antenna structure thereof Download PDFInfo
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- CN103779649B CN103779649B CN201210406302.XA CN201210406302A CN103779649B CN 103779649 B CN103779649 B CN 103779649B CN 201210406302 A CN201210406302 A CN 201210406302A CN 103779649 B CN103779649 B CN 103779649B
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Abstract
A kind of portable electron device and antenna structure thereof.This antenna structure includes one first radiant body, one second radiant body, one second coupling part and a switching circuit.First radiant body includes a feeding portion and one first radiant body body.Second radiant body includes one first coupling part, one second radiant body body and a grounding parts, and this first coupling part connects a first end of this second radiant body body, and this grounding parts connects this second radiant body body.This first radiant body body part is between this first coupling part and this second coupling part.When this antenna structure is in a first mode, this switching circuit makes to be formed between this second radiant body and this second coupling part path, and when this antenna structure is in a second mode, this switching circuit makes this second radiant body and this second coupling part open circuit.
Description
Technical field
The present invention relates to a kind of antenna structure, particularly relate to the antenna structure of a kind of energy map function frequency band.
Background technology
Currently for single kind of wireless telecommunications specification, in different areas, still suffer from different operation frequency ranges.As a example by LTE (Long Term Evolution) communication specification, the operation frequency range of U.S. locations is 704 ~ 960MHz and 1710 ~ 2170MHz.The operation frequency range of European Region is but 791 ~ 960MHz and 1710 ~ 2170MHz.But, lightening due to wireless communication apparatus, the size of antenna structure is also compressed, and frequency range is limited, therefore in the part of low frequency, it is impossible to meet the transmission demand in the U.S. and Europe simultaneously.
Summary of the invention
The present invention is a kind of antenna structure provided to solve the problem of prior art existence, including one first radiant body, one second radiant body, one second coupling part and a switching circuit.First radiant body includes a feeding portion and one first radiant body body.Second radiant body includes one first coupling part, one second radiant body body and a grounding parts, and this first coupling part connects a first end of this second radiant body body, and this grounding parts connects this second radiant body body and connects.This first radiant body body is at least partially disposed between this first coupling part and this second coupling part.Switching circuit connects this second radiant body and this second coupling part, wherein, when this antenna structure is in a first mode, this switching circuit makes to be formed between this second radiant body and this second coupling part path, when this antenna structure is in a second mode, this switching circuit makes this second radiant body and this second coupling part open circuit.
The feature of the antenna structure of the embodiment of the present invention is, by changing the coupling amount between the first radiant body and the second radiant body, thereby reaches to translate the purpose of frequency range, with satisfied transmission demand.The antenna structure of the embodiment of the present invention is not by the length means of prolongation radiant body rear end, and reaches to expand the effect of low frequency bandwidth, and therefore the length of overall antenna structure is shorter, and provides preferably signal laser propagation effect.
Accompanying drawing explanation
Fig. 1 shows the antenna structure of the embodiment of the present invention；
The antenna structure of Fig. 2 A display embodiment of the present invention Surface current distribution when first mode；
The antenna structure of Fig. 2 B display embodiment of the present invention Surface current distribution when second mode；
Fig. 3 shows the antenna structure of embodiment of the present invention signal laser propagation effect under first mode and second mode；And
Fig. 4 shows the portable electron device of the antenna structure of the application embodiment of the present invention.
Reference numeral explanation
10～portable electron device
11～circuit system
100～antenna structure
101,102,102 '～surface current
103～breach
110～first radiant body
111～feeding portion
112～the first radiant body body
113～kink
120～second radiant body
121～first coupling part
122～the second radiant body body
123～grounding parts
124～first end
125～the second end
126～extension
131～feed-in source
140～second coupling part
150～switching circuit
160～grounding parts
Detailed description of the invention
With reference to Fig. 1, the antenna structure 100 of its display embodiment of the present invention, including one first radiant body 110,1 second radiant body 120,1 second coupling part 140 and a switching circuit 150.First radiant body 110 includes feeding portion 111 and an one first radiant body body 112.One feed-in source 131 is electrically connected with this feeding portion 111.Second radiant body 120 includes one first coupling part 121,1 second radiant body body 122 and a grounding parts 123, and this first coupling part 121 connects a first end 124 of this second radiant body body 122, and this grounding parts 123 connects this second radiant body body 122.This first radiant body body 112 is at least partially disposed between this first coupling part 121 and this second coupling part 140.Switching circuit 150 connects this second radiant body 120 and this second coupling part 140.
This first radiant body body 112 is parallel to this first coupling part 121 and this second coupling part 140.In this embodiment, the length of this second coupling part 140 is less than the length of this first radiant body body 112.
With reference to Fig. 2 A and Fig. 2 B, when the antenna structure 100 of the embodiment of the present invention is in a first mode (Fig. 2 A), this switching circuit 150 makes to be formed between this second radiant body 120 and this second coupling part 140 path.When the antenna structure 100 of the embodiment of the present invention is in a second mode (Fig. 2 B), this switching circuit 150 makes this second radiant body 120 and this second coupling part 140 open circuit.
This switching circuit 150 switches between this first mode and this second mode.When this antenna structure 100 is in this first mode, electric connection by this switching circuit 150, this first coupling part 121, this second coupling part 140 and this first end 124 substantially constitute a U-shaped path, this U-shaped path is formed with a breach 103, this the first radiant body body 112 part stretches among this breach 103, to couple this first coupling part 121 and this second coupling part 140 simultaneously.With reference to Fig. 2 A, under this first mode, surface current 101, in feeding portion 111 feed-in, is advanced along the first radiant body body 112；Coupling this first coupling part 121 and this second coupling part 140 by this first radiant body body 112, surface current 102 senses generation on this first coupling part 121 and this second coupling part 140, and advances along the second radiant body body 122.
When this antenna structure 100 is in this second mode, the second coupling part 140 is separated with the second radiant body body 122, and this first radiant body body 112 only couples this first coupling part 121.With reference to Fig. 2 B, under this second mode, surface current 101, in feeding portion 111 feed-in, is advanced along the first radiant body body 112；Coupling this first coupling part 121 by this first radiant body body 112, surface current 102 ' senses generation on this first coupling part 121, and advances along the second radiant body body 122.
With reference to Fig. 1, in this embodiment, this first radiant body 110 also includes a kink 113, in order to adjust the impedance matching of antenna.This feeding portion 111 is connected to one end of this kink 113, and this first radiant body body 112 is connected to the other end of this kink 113.In this embodiment, this kink 113 is u-shaped, but shape is not limited.In other embodiments, also can not have kink 113, feeding portion 111 is then directly connected in the first radiant body body 112.
With reference to Fig. 1, in this embodiment, this grounding parts 123 connects this second radiant body body 122, and between this first end 124 of this second radiant body body 122 and a second end 125 of this two radiant bodies body 122, this grounding parts 123 is perpendicular to this second radiant body body 122, in other variation, grounding parts can be not orthogonal to the second radiant body body, also can be the structure of tool bending.Antenna structure 100 can also include an earth element 160, and wherein, this grounding parts 123 connects this earth element 160.Earth element 160 ground connection.
With reference to Fig. 1, in this embodiment, this second radiant body 120 can also include an extension 126, and this extension 126 connects this second end 125, and this extension 126 can substantially L-shaped or other shapes.In other variation, extension 126 shape does not limits, and also can not have extension 126.
In embodiments of the present invention, switching circuit 150 is made up of PIN (P-intrinsic-NDiode) diode, resistance R and inductance L.But, the announcement of embodiment is not limiting as the present invention, and the design of switching circuit 150 can be with moderate change.
The feature of the antenna structure of the embodiment of the present invention is, by changing the amount of coupling between the first radiant body 110 with the second radiant body 120, thereby reaches to translate the purpose of frequency range, with satisfied transmission demand.The voltage standing wave ratio of its display embodiment of the present invention antenna structure of Fig. 3, its middle conductor M1 representative antennas structure is in the voltage standing wave ratio under this first mode, and line segment M2 representative antennas structure is in the voltage standing wave ratio under this second mode.With reference to Fig. 3, antenna structure has notable difference in the frequency range of this first mode and the frequency range of this second mode in the part of low frequency, thereby, can meet the transmission demand of different regions (Europe rule, U.S. rule).
With reference to Fig. 4, the antenna structure 100 of the embodiment of the present invention can be applicable among a portable electron device 10, and this portable electron device 10 includes antenna structure 100 and circuit system 11, and antenna structure 100 is electrically connected with this circuit system 11.When portable electron device 10 is started shooting, circuit system 11 finds base station by antenna structure 100 with the wireless signal of high-frequency band, to differentiate that the position of portable electron device 10 is sitting at the U.S. or Europe, and according to position judgment result, order about this switching circuit to switch between this first mode and this second mode, carry out the transmission of signal with correct frequency range.The antenna structure of the embodiment of the present invention can be applicable among the electronic installation of mobile computer, Tablet PC or other forms.
Although the present invention discloses as above with concrete preferred embodiment; so it is not limited to the present invention; those skilled in the art is under the premise without departing from the spirit and scope of the present invention; still can make a little change and retouching, therefore protection scope of the present invention is to be as the criterion with the claim of the present invention.
Claims (13)
1. an antenna structure, including:
One first radiant body, including a feeding portion and one first radiant body body；
One second radiant body, including one first coupling part, one second radiant body body and a grounding parts, this first coupling part connects a first end of this second radiant body body, and this grounding parts connects this second radiant body body；
One second coupling part, wherein, this first radiant body body is at least partially disposed between this first coupling part and this second coupling part；And
One switching circuit, connect this second radiant body and this second coupling part, wherein, when this antenna structure is in a first mode, this switching circuit makes to be formed between this second radiant body and this second coupling part path, when this antenna structure is in a second mode, this switching circuit makes this second radiant body and this second coupling part open circuit
Wherein, when this antenna structure is in this first mode, by the electric connection of this switching circuit, this first coupling part, this second coupling part and this first end substantially constitute a U-shaped path, this U-shaped path forms a breach, and this first radiant body body part stretches among this breach.
2. antenna structure as claimed in claim 1, wherein, this first radiant body body is parallel to this first coupling part and this second coupling part.
3. antenna structure as claimed in claim 2, wherein, the length of this second coupling part is less than the length of this first radiant body body.
4. antenna structure as claimed in claim 2, wherein, when this antenna structure is in this first mode, this first radiant body body couples this first coupling part and this second coupling part simultaneously, when this antenna structure is in this second mode, this first radiant body body couples this first coupling part.
5. antenna structure as claimed in claim 1, wherein, this first radiant body also includes a kink, and this feeding portion is connected to one end of this kink, and this first radiant body body is connected to the other end of this kink.
6. antenna structure as claimed in claim 5, wherein, this kink is u-shaped.
7. antenna structure as claimed in claim 1, wherein, this grounding parts connects this second radiant body body, and between this first end of this two radiant bodies body and a second end of this two radiant bodies body.
8. antenna structure as claimed in claim 7, it also includes an earth element, and wherein, this grounding parts connects this earth element.
9. antenna structure as claimed in claim 7, wherein, this second radiant body also includes an extension, and this extension connects this second end.
10. a portable electron device, including:
One circuit system；And
One antenna structure, is electrically connected with this circuit system, including:
One first radiant body, including a feeding portion and one first radiant body body；
One second radiant body, including one first coupling part, one second radiant body body and a grounding parts, this first coupling part connects a first end of this second radiant body body, and this grounding parts connects this second radiant body body；
One second coupling part, wherein, this first radiant body body is at least partially disposed between this first coupling part and this second coupling part；And
One switching circuit, connect this second radiant body and this second coupling part, wherein, when this antenna structure is in a first mode, this switching circuit makes to be formed between this second radiant body and this second coupling part path, when this antenna structure is in a second mode, this switching circuit makes this second radiant body and this second coupling part open circuit
Wherein, when this antenna structure is in this first mode, by the electric connection of this switching circuit, this first coupling part, this second coupling part and this first end substantially constitute a U-shaped path, this U-shaped path forms a breach, and this first radiant body body part stretches among this breach.
11. portable electron devices as claimed in claim 10, wherein, this first radiant body body is parallel to this first coupling part and this second coupling part.
12. portable electron devices as claimed in claim 11, wherein, the length of this second coupling part is less than the length of this first radiant body body.
13. portable electron devices as claimed in claim 11, wherein, when this antenna structure is in this first mode, this the first radiant body body couples this first coupling part and this second coupling part simultaneously, when this antenna structure is in this second mode, this first radiant body body couples this first coupling part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210406302.XA CN103779649B (en) | 2012-10-23 | 2012-10-23 | Portable electron device and antenna structure thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210406302.XA CN103779649B (en) | 2012-10-23 | 2012-10-23 | Portable electron device and antenna structure thereof |
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| CN103779649A CN103779649A (en) | 2014-05-07 |
| CN103779649B true CN103779649B (en) | 2016-08-03 |
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| CN201210406302.XA Active CN103779649B (en) | 2012-10-23 | 2012-10-23 | Portable electron device and antenna structure thereof |
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| CN107681249B (en) * | 2016-07-21 | 2019-12-20 | 深圳富泰宏精密工业有限公司 | Antenna structure and wireless communication device with same |
| CN106970660B (en) * | 2017-04-26 | 2018-11-20 | 陕西师范大学 | A method of weakening the interference of flexural vibration disk disresonance mode |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101361282A (en) * | 2006-02-08 | 2009-02-04 | 香港应用科技研究院有限公司 | Systems and methods for using parasitic elements for controlling antenna resonances |
| JP2010166287A (en) * | 2009-01-15 | 2010-07-29 | Murata Mfg Co Ltd | Antenna device and wireless communications equipment |
| CN102280700A (en) * | 2011-05-05 | 2011-12-14 | 电子科技大学 | Printing boardband terminal antenna |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7551146B2 (en) * | 2007-03-30 | 2009-06-23 | Intel Corporation | Configurable antenna for mixed wireless networks |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101361282A (en) * | 2006-02-08 | 2009-02-04 | 香港应用科技研究院有限公司 | Systems and methods for using parasitic elements for controlling antenna resonances |
| JP2010166287A (en) * | 2009-01-15 | 2010-07-29 | Murata Mfg Co Ltd | Antenna device and wireless communications equipment |
| CN102280700A (en) * | 2011-05-05 | 2011-12-14 | 电子科技大学 | Printing boardband terminal antenna |
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