CN101728639B - Multifrequency antenna and electronic device with same - Google Patents
Multifrequency antenna and electronic device with same Download PDFInfo
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- CN101728639B CN101728639B CN2008101719011A CN200810171901A CN101728639B CN 101728639 B CN101728639 B CN 101728639B CN 2008101719011 A CN2008101719011 A CN 2008101719011A CN 200810171901 A CN200810171901 A CN 200810171901A CN 101728639 B CN101728639 B CN 101728639B
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Abstract
The invention relates to a multifrequency antenna and an electronic device with same. Specifically the invention is the multifrequency antenna used in the electronic device and for transmitting wireless signal. The multifrequency antenna comprises a substrate, a radiation component, a grounding component, a short-circuit component and a load point, wherein the radiation component, grounding component and short-circuit component are arranged on the substrate; the short-circuit component comprises a first end and a second end, the first end is connected with the radiation component and the second end is connected with the grounding component, wherein a first slot hole is arranged between the radiation component and the short-circuit component. The load point is used to feed electrical signals, wherein the load point is actually arranged between the side of the substrate and the short-circuit component. The invention can realize the effect of broadband transmission.
Description
Technical field
The present invention relates to a kind of multifrequency antenna, particularly relate to a kind of the utilization and adjust slotted eye to reach the multifrequency antenna of wideband transmit.
Background technology
Along with the progress of science and technology, it is more and more universal that electronic product on the market utilizes wireless communication system to carry out transmission manner.For the multi-medium data that needs have big data quantity, more need a kind of transmit antenna with bigger frequency range.Thus, the traditional antenna demand of just having no idea to meet.
A kind of antenna form is disclosed in the prior art.Below please refer to Figure 1A relevant for the schematic diagram of the antenna of prior art.The antenna 90 of prior art is disclosed in United States Patent (USP) notification number 6,812,892B2.The antenna 90 of prior art has a radiation assembly 91, a coupling assembling 92, a grounding assembly 93 and load point F.Wherein coupling assembling 92 has one first end 921 and one second end 922; And first end 921 of coupling assembling 92 is connected to radiation assembly 91, the second ends 922 and is connected to grounding assembly 93.And antenna 90 by the direct FD feed of load point F to transmit an electrical signals.
Then please refer to Figure 1B, it is according to the antenna 90 of Figure 1A VSWR at different frequency.By learning among Figure 1B, antenna 90 only can be transmitted in the scope of the frequency about 2.5GHz and 5.5GHz.Be example with the frequency about 2.5GHz, antenna 90 is about 250MHz at the frequency range of this frequency range, and centre frequency is about 2450MHz, so percentage is about (250MHz/2450MHz)=10.2%.Hence one can see that, and 90 frequency ranges that can transmit of the antenna in the middle of prior art just have very big restriction, and do not meet the frequency range requirement of multifrequency antenna now.
Therefore, need invent out a kind of multifrequency antenna to solve the disappearance of prior art.
Summary of the invention
Main purpose of the present invention is to provide a kind of multifrequency antenna, can utilize and adjust slotted eye to reach the wideband transmit effect.
Another main purpose of the present invention is to provide a kind of electronic installation, and it has a multifrequency antenna.
For reaching above-mentioned purpose, electronic installation of the present invention comprises wireless signal module and multifrequency antenna.Multifrequency antenna and wireless signal module electrically connect.Multifrequency antenna comprises substrate, radiation assembly, grounding assembly, short-circuit component and load point.Radiation assembly is arranged on the substrate.Grounding assembly is arranged on the substrate, in order to the usefulness as multifrequency antenna ground connection.Short-circuit component is arranged on the substrate.Short-circuit component comprises first end and second end, and first end connects radiation assembly, and second end connects grounding assembly, wherein has first slotted eye between radiation assembly and the short-circuit component.Load point is in order to the feed-in electrical signals, and wherein load point is in fact between the side and short-circuit component of substrate.
Multifrequency antenna of the present invention and electronic installation thereof can reach the effect of wideband transmit.
Description of drawings
Figure 1A is the schematic diagram of the antenna of prior art.
Figure 1B shows that according to Figure 1A it is at the VSWR of different frequency.
Fig. 2 A is the schematic diagram of first embodiment of multifrequency antenna of the present invention.
Fig. 2 B shows that according to Fig. 2 A it is at the VSWR of different frequency.
Fig. 2 C shows that according to Fig. 2 A it is in the usefulness of different frequency.
Fig. 2 D shows its radiation field shape figure in the horizontal direction according to Fig. 2 A.
Fig. 3 A is the schematic diagram of second embodiment of multifrequency antenna of the present invention.
Fig. 3 B shows that according to Fig. 3 A it is in the VSWR of different frequency value.
Fig. 4 A is the schematic diagram of the 3rd embodiment of multifrequency antenna of the present invention.
Fig. 4 B shows that according to Fig. 4 A it is in the VSWR of different frequency value.
Fig. 5 A is the schematic diagram of the 4th embodiment of multifrequency antenna of the present invention.
Fig. 5 B shows that according to Fig. 5 A it is in the VSWR of different frequency value.
Fig. 6 A is the schematic diagram of the 5th embodiment of multifrequency antenna of the present invention.
Fig. 6 B shows that according to Fig. 6 A it is in the VSWR of different frequency value.
Fig. 7 A is the schematic diagram of the 6th embodiment of multifrequency antenna of the present invention.
Fig. 7 B shows that according to Fig. 7 A it is in the VSWR of different frequency value.
Fig. 8 A is the schematic diagram of the 7th embodiment of multifrequency antenna of the present invention.
Fig. 8 B shows that according to Fig. 8 A it is in the VSWR of different frequency value.
Fig. 9 is the system block diagram about electronic installation of the present invention.
The primary clustering symbol description:
Prior art: matching component 32
Antenna 90 first matching areas 321
Radiation assembly 91 second matching areas 322
Coupling assembling 92 grounding assemblies 40
First end, 921 short-circuit component 50
Second end, 922 first ends 51
Grounding assembly 93 second ends 52
Load point F electronic installation 60
Wireless signal module 61
The present invention: load point F
Embodiment
For above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, cited below particularlyly go out specific embodiments of the invention, and cooperate appended accompanying drawing, be described in detail below.
Please refer to Fig. 2 A, be the schematic diagram of first embodiment of multifrequency antenna of the present invention.
In the first embodiment of the present invention, multifrequency antenna 10a is a flat structure.Multifrequency antenna 10a comprises substrate 20, radiation assembly (Radiating Element) 30, grounding assembly (Grounding Element) 40, short-circuit component 50 and load point (feeding point) F.Substrate 20 is a kind of printed circuit board (PCB), plastic plate or glass mat, but the present invention is not as limit.Radiation assembly 30, grounding assembly 40 can be printed on the substrate 20 with short-circuit component 50, perhaps utilize metalwork (ironware) to make and are attached at substrate 20 again.Radiation assembly 30 can be by electric current with the exciting radiation energy.Wherein radiation assembly 30 comprises first radiation areas 311, second radiation areas 312 and matching component 32.Matching component 32 comprises first matching area 321 and second matching area 322.Grounding assembly 40 is in order to the usefulness as multifrequency antenna 10a ground connection.Short-circuit component 50 comprises that first end 51 and second end, 52, the first ends 51 connect 52 at radiation assembly 30, the second ends and connect grounding assembly 40.
Have the first slotted eye S1 between radiation assembly 30 and the short-circuit component 50, have the second slotted eye S2 between first radiation areas 311 and second radiation areas 312, then have the 3rd slotted eye S3 between first matching area 321 and second matching area 322.And the second above-mentioned slotted eye S2 and the 3rd slotted eye S3 and first radiation areas 311 are parallel to each other in fact.Radiation assembly 30 utilizes the length adjustment impedance matching of the first slotted eye S1, the second slotted eye S2 and the 3rd slotted eye S3, with the different frequency range that resonates out.In order to reach preferable resonance effect, the length L 2 of the first slotted eye S1 and second radiation areas 312 should be greater than half of the length L 1 of first radiation areas 311, and the length of the 3rd slotted eye S3 should be greater than half of the length L 3 of first matching area 321.And the height of second radiation areas 312 should be greater than the height of the first slotted eye S1, and the height of second matching area 322 should be greater than the height of the 3rd slotted eye S3.
On multifrequency antenna 10a, also comprise a load point F.The position of load point F is in fact between the side and short-circuit component 50 of substrate 20.In the first embodiment of the present invention, load point F is positioned on the radiation assembly 30, and the centre place between first end 51 of the edge of the matching component 32 on the radiation assembly 30 and short-circuit component 50 in fact.Load point F electrically connects a feed-in line (not shown), in order to feed-in one electrical signals.The feed-in line can be as radio frequency cable cables such as (RFCable), but the present invention is not as limit.
By the structure of above-mentioned multifrequency antenna 10a and the effect of each slotted eye, the frequency range about 2GHz can resonate out in first radiation areas 311, second radiation areas 312 frequency range about 3GHz that can resonate out, second matching area 322 frequency range about 5GHz that then can resonate out.
Then please also refer to Fig. 2 B to Fig. 2 D.Wherein Fig. 2 B shows it at the VSWR of different frequency according to Fig. 2 A, and Fig. 2 C shows first embodiment of broad-band antenna of the present invention in the usefulness of different frequency according to Fig. 2 A, and Fig. 2 D shows its radiation field shape figure in the horizontal direction according to Fig. 2 A.
By among Fig. 2 B as can be known, multifrequency antenna 10a can transmit the frequency range about 2.3GHz to 2.7GHz, 3.3GHz to 3.8GHz and 5.15GHz to 5.85GHz by above-mentioned structure and the effect of each slotted eye.And by can obviously learning among Fig. 2 C, the usefulness about frequency 2.3GHz to 2.7GHz, 3.3GHz to 3.8GHz and 5.15GHz to 5.85GHz all surpasses 40%, makes multifrequency antenna 10a have good transmission usefulness.Can be learnt by Fig. 2 D that at last multifrequency antenna 10a is a kind of isotropic antenna.Therefore be compared to the antenna 90 of prior art, multifrequency antenna 10a of the present invention has preferable laser propagation effect.
The present invention is not limited with the structure of the multifrequency antenna 10a among first embodiment.Then please in the lump with reference to the relevant schematic diagram of figure 3A～3B about second embodiment of multifrequency antenna of the present invention.Wherein Fig. 3 A is the schematic diagram of second embodiment of multifrequency antenna of the present invention, and Fig. 3 B shows that according to Fig. 3 A it is in the VSWR of different frequency value.
In the second embodiment of the present invention, the radiation assembly 30a of multifrequency antenna 10b is complete metallic plate.Radiation assembly 30a does not have the second slotted eye S2 shown in Fig. 2 A and the 3rd slotted eye S3.Under this structure, the VSWR that multifrequency antenna 10b shows is namely shown in Fig. 3 B.Multifrequency antenna 10b can have the operation frequency range of 2.8GHz to 6GHz.Be compared to the antenna 90 of prior art, multifrequency antenna 10b has broad operation frequency range significantly.
Then please in the lump with reference to the relevant schematic diagram of figure 4A～4B about the 3rd embodiment of multifrequency antenna of the present invention.Wherein Fig. 4 A is the schematic diagram of the 3rd embodiment of multifrequency antenna of the present invention, and Fig. 4 B shows that according to Fig. 4 A it is in the VSWR of different frequency value.
In the third embodiment of the present invention, the radiation assembly 30b of multifrequency antenna 10c includes only first radiation areas 311 and second radiation areas 312, does not extend the matching component 32 shown in Fig. 2 A.Under this structure, the VSWR that multifrequency antenna 10c shows is namely shown in Fig. 4 B.The multifrequency antenna 10c operation frequency range about 2.7GHz, 3.5GHz to 3.8GHz and 5GHz that also can resonate out.
Then please in the lump with reference to the relevant schematic diagram of figure 5A～5B about the 4th embodiment of multifrequency antenna of the present invention.Fig. 5 A is the schematic diagram of the 4th embodiment of multifrequency antenna of the present invention, and Fig. 5 B shows that according to Fig. 5 A it is in the VSWR of different frequency value.
In the fourth embodiment of the present invention, load point F and the radiation assembly 30 of multifrequency antenna 10d are arranged on the Different Plane of substrate 20.The position of load point F is similarly in fact between the side and 50 mapping position of short-circuit component of substrate 20.And grounding assembly 40 also extends to another plane of substrate 20.Under this structure, the VSWR that multifrequency antenna 10d shows is namely shown in Fig. 5 B.The operation frequency range that multifrequency antenna 10d can resonate out about 2.8GHz and 3.8GHz is above.
On the other hand, slotted eye shape of the present invention and position are not limited with the above embodiments.Then please in the lump with reference to the relevant schematic diagram of figure 6A～6B about the 5th embodiment of multifrequency antenna of the present invention.Fig. 6 A is the schematic diagram of the 5th embodiment of multifrequency antenna of the present invention, and Fig. 6 B shows that according to Fig. 6 A it is in the VSWR of different frequency value.
In the fifth embodiment of the present invention, the shape of the second slotted eye S2 ' of multifrequency antenna 10e is different with the second slotted eye S2 shape in the above embodiments.It is one L shaped that the shape of the second slotted eye S2 ' is similar to, and its opening part and first radiation areas 311 are orthogonal in fact.Thus, first radiation areas 311 frequency range about 3GHz that can resonate out, the frequency range about 2GHz can resonate out in second radiation areas 312.Under this structure, the VSWR that multifrequency antenna 10e shows is namely shown in Fig. 6 B.The operation frequency range but multifrequency antenna 10e also all can resonate out about 2GHz, 3GHz and 5GHz.
Then please in the lump with reference to the relevant schematic diagram of figure 7A～7B about the 6th embodiment of multifrequency antenna of the present invention.Fig. 7 A is the schematic diagram of the 6th embodiment of multifrequency antenna of the present invention, and Fig. 7 B shows that according to Fig. 7 A it is in the VSWR of different frequency value.
In the sixth embodiment of the present invention, the 3rd slotted eye S3 ' of multifrequency antenna 10f is also for to be similar to a L shaped shape, makes itself and first radiation areas 311 orthogonal in fact.Under this structure, the VSWR that multifrequency antenna 10f shows is namely shown in Fig. 7 B.The operation frequency range but multifrequency antenna 10f all can resonate out about 2GHz, 3GHz and 5GHz.
Then please in the lump with reference to the relevant schematic diagram of figure 8A～8B about the 7th embodiment of multifrequency antenna of the present invention.Fig. 8 A is the schematic diagram of the 7th embodiment of multifrequency antenna of the present invention, and Fig. 8 B shows that according to Fig. 8 A it is in the VSWR of different frequency value.
Short-circuit component 50 also can be adjusted with the link position of grounding assembly 40.In the seventh embodiment of the present invention, the position that second end 52 of multifrequency antenna 10g is connected with grounding assembly 40 is near the bottom of grounding assembly 40.Under this structure, the VSWR that multifrequency antenna 10g shows is namely shown in Fig. 8 B.The operation frequency range but multifrequency antenna 10g all can resonate out about 2GHz, 3GHz and 5GHz.
At last, please refer to Fig. 9 about the system block diagram of electronic installation of the present invention.
In one embodiment of this invention, electronic installation 60 can be mobile devices such as notebook computer, but the present invention is not as limit.As shown in Figure 9, electronic installation 60 of the present invention comprises multifrequency antenna 10a and wireless signal module 61.Electronic installation 60 can utilize RF Cable (not shown) to be fed into multifrequency antenna 10a and electrically connect with wireless signal module 61, to handle the signal of multifrequency antenna 10a by wireless signal module 61, for example launches or the reception signal.Thus, electronic installation 60 namely can receive or transmit wireless signal to other device (not shown), to reach the purpose of radio communication by multifrequency antenna 10a.
Be noted that herein electronic installation 60 is not limited to have multifrequency antenna 10a.The present invention also can be according to demand, with multifrequency antenna 10b of the present invention to multifrequency antenna 10g wherein any antenna replace multifrequency antenna 10a, to receive or to transmit the wireless signal of different frequency range.
To sum up institute is old, and no matter the present invention everywhere all shows it totally different in the feature of known technology with regard to purpose, means and effect, earnestly asks the auditor to perceive, and grants quasi patent early, makes Jiahui society, and the true feeling moral just.Only it should be noted that above-mentioned many embodiment only give an example for convenience of explanation, the present invention's interest field required for protection should be as the criterion so that claims scope is described naturally, but not only limits to above-described embodiment.
Claims (20)
1. multifrequency antenna comprises:
One substrate;
One radiation assembly is arranged on the described substrate, and described radiation assembly comprises one first radiation areas and one second radiation areas;
One grounding assembly is arranged on the described substrate, in order to the usefulness as described multifrequency antenna ground connection;
One short-circuit component, be arranged on the described substrate, described short-circuit component comprises one first end and one second end, described first end connects described radiation assembly, described second end connects described grounding assembly, have one first slotted eye between wherein said radiation assembly and the described short-circuit component, described first slotted eye is in order to adjust the operation frequency range of described multifrequency antenna; And
One load point, in order to feed-in one electrical signals, wherein said load point is between a side and described short-circuit component of described substrate;
Wherein, the distance between the last boundary of described second radiation areas of described radiation assembly and the following boundary is greater than the last boundary of described first slotted eye and the distance between the following boundary.
2. multifrequency antenna as claimed in claim 1 has one second slotted eye between wherein said first radiation areas and described second radiation areas, and described second slotted eye is in order to adjust the operation frequency range of described multifrequency antenna.
3. multifrequency antenna as claimed in claim 2, the length of wherein said second slotted eye is greater than 1/2nd of the length of described first radiation areas.
4. multifrequency antenna as claimed in claim 2, wherein said second slotted eye has an opening part, and described opening part is perpendicular or parallel in described first radiation areas.
5. multifrequency antenna as claimed in claim 2, wherein said radiation assembly also comprises an extended matching component, described matching component comprises one first matching area and one second matching area, has one the 3rd slotted eye between described first matching area and described second matching area, described the 3rd slotted eye is in order to adjust the operation frequency range of described multifrequency antenna, and the distance between the last boundary of wherein said second matching area and the following boundary is greater than the last boundary of described the 3rd slotted eye and the distance between the following boundary.
6. multifrequency antenna as claimed in claim 5, the length of wherein said the 3rd slotted eye is greater than 1/2nd of the length of described first matching area.
7. multifrequency antenna as claimed in claim 5, wherein said the 3rd slotted eye is perpendicular or parallel in described first radiation areas.
8. multifrequency antenna as claimed in claim 1, wherein said load point and described radiation assembly are arranged at same plane or the Different Plane on the described substrate.
9. multifrequency antenna as claimed in claim 1, described second end of wherein said short-circuit component is connected in a bottom of described grounding assembly.
10. multifrequency antenna as claimed in claim 1, wherein said radiation assembly, described grounding assembly and described short-circuit component are printed on the described substrate or by a metalwork to be made and is affixed on the described substrate.
11. the electronic installation with multifrequency antenna has the function of a wireless transmission, described electronic installation with multifrequency antenna comprises:
One wireless signal module; And
One multifrequency antenna comprises:
One substrate;
One radiation assembly is arranged on the described substrate, and described radiation assembly comprises one first radiation areas and one second radiation areas;
One grounding assembly is arranged on the described substrate, in order to the usefulness as described multifrequency antenna ground connection;
One short-circuit component, be arranged on the described substrate, described short-circuit component comprises one first end and one second end, described first end connects described radiation assembly, described second end connects described grounding assembly, have one first slotted eye between wherein said radiation assembly and the described short-circuit component, described first slotted eye is in order to adjust the operation frequency range of described multifrequency antenna; And
One load point, in order to feed-in one electrical signals, wherein said load point is between a side and described short-circuit component of described substrate;
Wherein, the distance between the last boundary of described second radiation areas of described radiation assembly and the following boundary is greater than the last boundary of described first slotted eye and the distance between the following boundary.
12. the electronic installation with multifrequency antenna as claimed in claim 11 has one second slotted eye between wherein said first radiation areas and described second radiation areas, described second slotted eye is in order to adjust the operation frequency range of described multifrequency antenna.
13. the electronic installation with multifrequency antenna as claimed in claim 12, the length of wherein said second slotted eye is greater than 1/2nd of the length of described first radiation areas.
14. the electronic installation with multifrequency antenna as claimed in claim 12, wherein said second slotted eye has an opening part, and described opening part is perpendicular or parallel in described first radiation areas.
15. the electronic installation with multifrequency antenna as claimed in claim 12, wherein said radiation assembly also comprises an extended matching component, described matching component comprises one first matching area and one second matching area, has one the 3rd slotted eye between described first matching area and described second matching area, described the 3rd slotted eye is in order to adjust the operation frequency range of described multifrequency antenna, and the distance between the last boundary of wherein said second matching area and the following boundary is greater than the last boundary of described the 3rd slotted eye and the distance between the following boundary.
16. the electronic installation with multifrequency antenna as claimed in claim 15, the length of wherein said the 3rd slotted eye is greater than 1/2nd of the length of described first matching area.
17. the electronic installation with multifrequency antenna as claimed in claim 15, wherein said the 3rd slotted eye is perpendicular or parallel in described first radiation areas.
18. the electronic installation with multifrequency antenna as claimed in claim 11, wherein said load point and described radiation assembly are arranged at same plane or the Different Plane on the described substrate.
19. the electronic installation with multifrequency antenna as claimed in claim 11, described second end of wherein said short-circuit component is connected in a bottom of described grounding assembly.
20. the electronic installation with multifrequency antenna as claimed in claim 11, wherein said radiation assembly, described grounding assembly and described short-circuit component are printed on the described substrate or by a metalwork to be made and is affixed on the described substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101719011A CN101728639B (en) | 2008-10-24 | 2008-10-24 | Multifrequency antenna and electronic device with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101719011A CN101728639B (en) | 2008-10-24 | 2008-10-24 | Multifrequency antenna and electronic device with same |
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| Publication Number | Publication Date |
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| CN101728639A CN101728639A (en) | 2010-06-09 |
| CN101728639B true CN101728639B (en) | 2013-07-10 |
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| CN2008101719011A Active CN101728639B (en) | 2008-10-24 | 2008-10-24 | Multifrequency antenna and electronic device with same |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3408890B1 (en) * | 2016-01-28 | 2022-03-09 | Sony Group Corporation | An antenna arrangement on a circuit board |
| CN107230829A (en) * | 2017-05-10 | 2017-10-03 | 深圳大学 | A kind of magnetoelectricity dipole filter antenna |
| KR102394616B1 (en) * | 2019-11-29 | 2022-05-06 | 주식회사 아모센스 | Antenna module |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6781546B2 (en) * | 2002-07-24 | 2004-08-24 | Yageo Corporation | Integrated antenna for portable computer |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6781546B2 (en) * | 2002-07-24 | 2004-08-24 | Yageo Corporation | Integrated antenna for portable computer |
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