CN202004151U - Multi-band antenna - Google Patents
Multi-band antenna Download PDFInfo
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- CN202004151U CN202004151U CN2011200044995U CN201120004499U CN202004151U CN 202004151 U CN202004151 U CN 202004151U CN 2011200044995 U CN2011200044995 U CN 2011200044995U CN 201120004499 U CN201120004499 U CN 201120004499U CN 202004151 U CN202004151 U CN 202004151U
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- 230000005855 radiation Effects 0.000 claims abstract description 129
- 239000000758 substrate Substances 0.000 claims abstract description 36
- 239000002184 metal Substances 0.000 claims description 20
- 238000005452 bending Methods 0.000 claims description 13
- 238000000465 moulding Methods 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000001808 coupling effect Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
The utility model provides a multi-band antenna, which comprises a substrate, a ground plane arranged on the substrate, a first radiation path, a second radiation path, a third radiation path, a connecting path and a short circuit path, wherein the first radiation path, the second radiation path, the third radiation path, the connecting path and the short circuit path are arranged on the substrate. The first radiation path is provided with a first end and a second end, the connecting path is formed by extending of the first end of the first radiation path, and the second radiation path and the third radiation path are both formed by extending of the end of the connecting path. Two ends of the short circuit path are respectively electrically connected with a short circuit point and the first end of the first radiation path, the second radiation path resonates in a first operating band, the first radiation path, the connecting path and the third radiation path resonate in a third operating band, and the free end of the third radiation path is coupled with the second end of the first radiation path so as to resonate in a second operating band.
Description
Technical field
The utility model relates to a kind of antenna structure, but refers in particular to a kind of multifrequency antenna of multi-band operation.
Background technology
Along with the wireless telecommunications development of science and technology, the user can not be subjected to the restriction of position, utilize wireless telecommunication system to carry out message transmission, the feasible electronic product that utilizes wireless communication technique, for example the quantity and the kind of portable electronic devices such as notebook computer, mobile phone, personal digital assistant grow with each passing day, and the antenna that is used for receiving and dispatching electromagnetic wave signal promptly becomes one of considerable element of wireless communication apparatus.
For example traditional inverted F shaped antenna structure, because its resonant length is about the quarter-wave of resonance mode centre frequency, so size can be less than general microstrip antenna or flat plane antenna design, but miniaturization along with electronic product, this type of inverted F shaped antenna design still can't be satisfied with the demand of concealed antenna microminiaturization, and its operation frequency range is limited, and can't reach broadband character.
Again on the one hand, can utilize built-in microminiaturized inverted F shaped antenna to reach the microminiaturization of antenna size traditionally, the slit that it utilizes on the antenna primary radiation sheet metal wriggles its current path, reaches the purpose that antenna size dwindles.Antenna primary radiation sheet metal can form two current paths simultaneously, reaches dual frequency operation to excite two resonance modes respectively.Yet though above-mentioned design can be dwindled antenna size, its frequency range still is narrow frequency operation, and can't reach the frequency range demand that contains a plurality of band system band.
The present utility model people is because the defective of above-mentioned existing constructional device when actual using, and the accumulation individual is engaged on the related industry exploitation practice experience for many years, studies intensively, and proposes a kind of reasonable in design and effectively improve the structure of the problems referred to above finally.
The utility model content
One of the purpose of this utility model is to provide a kind of multifrequency antenna, and it utilizes many metal path to produce a plurality of resonance path, more utilizes coupled modes to form different resonance modes, so that antenna can carry out the reception/transmission of signal under a plurality of operational frequency bands.
The utility model embodiment provides a kind of multifrequency antenna, comprises: a substrate; One ground plane, it is located on this substrate, and this ground plane comprises a short dot and an earth point; One first radiation path, it is located on this substrate and is adjacent to this ground plane, and this first radiation path has one first end and one second end, and this first radiation path is provided with a pair of first load point that should earth point; One access path, it is located on this substrate, and this access path is by this first end institute elongation moulding of this first radiation path; One second radiation path and one the 3rd radiation path, this second radiation path and the 3rd radiation path all are located on this substrate, and this second radiation path and the 3rd radiation path are by the terminal elongation moulding of this access path; And a short circuit paths, it is located on this substrate, and the two ends of this short circuit paths are electrically connected at this first end of this short dot and this first radiation path respectively, and have one second load point on this short circuit paths; Wherein, this second radiation path resonates in first operational frequency bands, this first radiation path, this access path and the 3rd radiation path resonate in the 3rd operational frequency bands, and the free end of the 3rd radiation path is coupled in this second end of this first radiation path to resonate in second operational frequency bands.
According to the further improved technical scheme of the utility model, this ground plane is a sheet metal, this short dot and this earth point are positioned at a side of this sheet metal, and this first radiation path, this second radiation path, the 3rd radiation path, this access path and this short circuit paths are positioned at the top of this side.
According to the further improved technical scheme of the utility model, this first radiation path has the sheet metal of two bendings.
According to the further improved technical scheme of the utility model, this first radiation path is extended by the side that this first end is parallel to this ground plane, and a segment length is extended in vertical again bending, vertically bends and extends into this second end of type by free end again.
According to the further improved technical scheme of the utility model, this second end of this first radiation path also forms an extension.
According to the further improved technical scheme of the utility model, this first radiation path has different in width.
According to the further improved technical scheme of the utility model, this second radiation path and the 3rd radiation path are the sheet metal that does not have bending, and this second radiation path and the 3rd radiation path are by the end of this access path elongation moulding in the opposite direction.
According to the further improved technical scheme of the utility model, this short circuit paths is one to have the sheet metal of a bending.
According to the further improved technical scheme of the utility model, this substrate is entity substrate or air substrate.
According to the further improved technical scheme of the utility model, has a breaking part between the free end of the 3rd radiation path and this second end, to produce coupling.
The length of first radiation path, second radiation path and the 3rd radiation path constitutes the receiving feature of different frequency range; And formed coupling effect more can inspire different resonance modes and can adjust the frequency ratio of second and third operational frequency bands between first radiation path and the 3rd radiation path, makes multifrequency antenna of the present utility model can be applicable to multifrequency/three operation frequently.
For further understanding feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, yet appended accompanying drawing only provide with reference to and the explanation usefulness, be not to be used for the utility model is limited.
Description of drawings
Fig. 1 is the schematic diagram of the utility model first embodiment;
Fig. 2 is the schematic diagram of the utility model second embodiment;
Fig. 3 is the S11 resolution chart that multifrequency antenna of the present utility model is used the GSM frequency range;
Fig. 4 is that multifrequency antenna of the present utility model is at the band operation gained SmithChart of 2500MHz figure;
Fig. 5 is that multifrequency antenna of the present utility model is at the band operation gained SmithChart of 1900MHz figure;
Fig. 6 is that multifrequency antenna of the present utility model is at the band operation gained SmithChart of 900MHz figure;
Fig. 7 is the S11 resolution chart that multifrequency antenna of the present utility model is used the Wimax frequency range;
Fig. 8 is that multifrequency antenna of the present utility model is at the band operation gained SmithChart of 2500MHz figure;
Fig. 9 is that multifrequency antenna of the present utility model is at the band operation gained SmithChart of 3500MHz figure; And
Figure 10 is that multifrequency antenna of the present utility model is at the band operation gained SmithChart of 5500MHz figure.
The main element symbol description
1 multifrequency antenna, 10 substrates
11 ground planes, 111 short dots
112 earth points, 12 first radiation paths
120 second ends, 1201 extensions
121 first ends, 122 first load points
13 access paths, 131 ends
14 second radiation paths 15 the 3rd radiation path
16 short circuit paths, 161 second load points
Embodiment
See also shown in Figure 1ly, the utility model proposes a kind of multifrequency antenna 1, it utilizes structure, path and the width of adjusting antenna to come the excitation resonance frequency band, adjusting needed frequency band range and electric characteristics, and uses the mode of coupling to reach Multiband-operation.This multifrequency antenna 1 comprises: substrate 10, ground plane 11, first radiation path 12, second radiation path 14, the 3rd radiation path 15, access path 13 and short circuit paths 16.Wherein, this substrate 10 is in order to carry above-mentioned ground plane 11, first, second, third radiation path 12,14 and 15, short circuit paths 16 and access path 13, in other words, these ground plane 11 antenna structures such as grade all are arranged on this substrate 10, then this substrate 10 is a kind of entity substrate, as ceramic substrate, glass substrate etc.; Perhaps this substrate 10 can be the air substrate.
Particularly, this ground plane 11 is located at this substrate 10, and this ground plane 11 comprises a short dot 111 and an earth point 112.First radiation path 12 is located on this substrate 10 and is adjacent to this ground plane 11, and this first radiation path has one first end 121 and one second end 120, and this first radiation path 12 is provided with a pair of first load point 122 that should earth point 112; In addition, first end, 121 elongation mouldings of first radiation path 12 have the access path of being located on the substrate 10 13; The end 131 of access path 13 then elongation moulding has second radiation path 14 and the 3rd radiation path 15.
Moreover, be located at the short circuit paths 16 on the substrate 10, by 121 elongation mouldings of first end of first radiation path 12, the two ends of short circuit paths 16 are electrically connected at first end 121 of the short dot 111 and first radiation path 12 respectively equally for it, and have one second load point 161 on the short circuit paths 16.Structure by above-mentioned radiation path, second radiation path 14 resonates in first operational frequency bands, the path that first radiation path 12, access path 13 and the 3rd radiation path 15 are formed the 3rd operational frequency bands that resonates, and the free end of the 3rd radiation path 15 is coupled in second end 120 of first radiation path 12 to resonate in second operational frequency bands.
As shown in Figure 1, it is first embodiment of the present utility model.Wherein, this ground plane 11 is for being located at a sheet metal of this substrate 10, and this short dot 111 and this earth point 112 are positioned at a side of this sheet metal; First radiation path 12, second radiation path 14, the 3rd radiation path 15, access path 13 are positioned at the top of this side and are adjacent to this ground plane 11 with short circuit paths 16.
In this specific embodiment, first radiation path 12 is similar to U-shaped metal lamellar body for having the sheet metal of two bendings, and it can be parallel to a side of ground plane 11 and be extended by first end 121, after a segment length is extended in vertical again bending, vertically bend and extend into type second end 120 by free end again; Moreover second end 120 of first radiation path 12 more forms an extension 1201, and first radiation path 12 has different width, and in other words, first radiation path 12 has the variation on the width.Moreover short circuit paths 16 is one to have the sheet metal of a bending, and it connects first end 121 and short dot 111 of first radiation path 12 with L shaped structure.
By said structure, the length that second radiation path 14 is extended is longer, and it forms the resonance path of relative low frequency (i.e. first operational frequency bands); The length that extend in the path that first radiation path 12, access path 13 and the 3rd radiation path 15 are formed is shorter, and it forms the more resonance path of high frequency (i.e. the 3rd operational frequency bands); And first radiation path 12 and the 3rd radiation path 15 formed coupling effects can produce the resonance of different modalities, to form the reception of relative high frequency (i.e. second operational frequency bands), so can reach three frequency/Multiband-operations, and this multifrequency antenna 1 has good antenna performance, for example advantage such as good impedance match.
Please refer to Fig. 3, the antenna applications of the multifrequency antenna 1 of demonstration the foregoing description is in the performance plot (S11) of GSM frequency range, the resolution chart that returns loss (return loss) that wherein shows the utility model antenna, it produces first operational frequency bands (being about 900MHz) of a multi-band operation under the definition of 3:1VSWR, second operational frequency bands (being about 1900MHz) and the 3rd operational frequency bands (being about 2500MHz), and as shown in Figure 3, second, the generation of the 3rd operational frequency bands is mainly produced by the above-mentioned different reception mode that coupling inspired in the frequency range of relative high frequency.In addition, Fig. 4, Fig. 5, Fig. 6 be the multifrequency antenna 1 of first embodiment at the band operation gained Smith of 2500MHz, 1900MHz, 900MHz Chart figure, according to The above results, multifrequency antenna 1 of the present utility model has good antenna performance.
Please refer to Fig. 7, the antenna applications of the multifrequency antenna 1 of demonstration the foregoing description is in the performance plot (S11) of Wimax frequency range, the resolution chart that returns loss (return loss) that wherein shows the utility model antenna, it produces first operational frequency bands (being about 2500MHz) of a multi-band operation under the definition of 2:1VSWR, second operational frequency bands (being about 3500MHz) and the 3rd operational frequency bands (being about 5500MHz), and as shown in Figure 7, second, the generation of the 3rd operational frequency bands is mainly produced by the above-mentioned different reception mode that coupling inspired in the frequency range of relative high frequency.In addition, Fig. 8, Fig. 9, Figure 10 be the multifrequency antenna 1 of first embodiment at the band operation gained Smith of 2500MHz, 3500MHz, 5500MHz Chart figure, according to The above results, multifrequency antenna 1 of the present utility model has good antenna performance.
On the other hand, please refer to Fig. 2, it shows 6 and shows second embodiment of the present utility model; Second embodiment is with the difference of first embodiment: first radiation path 12 is the identical sheet metal institute bending forming of a width, and second end 120 of first radiation path 12 there is no the extension 1201 among first embodiment, whereby, second end, the 120 same free ends with the 3rd radiation path 15 of first radiation path 12 produce coupling effect, receive mode to inspire different signals, make multifrequency antenna 1 of the present utility model have the receiving feature of second operational frequency bands.
In sum, the utlity model has following all advantage:
1, the utility model can utilize structure, path, width and other parameter of adjusting antenna with the excitation resonance frequency band, and utilize the mode of coupling to inspire second operational frequency bands, and the mode that can utilize the access path short circuit characteristic is reached the frequency range ratio of control frequency band, this antenna can be operated at required multifrequency frequency band range, for example can satisfy the operational requirements of WLAN frequency band.
2, the multifrequency antenna that the utility model proposed has complanation and the little advantage of size, makes its communication system that is applied to microminiaturization, to form complanation, good antenna and its electronic installation of characteristic.
The above only is a preferred possible embodiments of the present utility model, and is non-so limit to claim of the present utility model, so the equivalence techniques that uses the utility model specification and accompanying drawing content to do such as changes, all is contained in the scope of the present utility model.
Claims (10)
1. a multifrequency antenna is characterized in that, comprises:
One substrate;
One ground plane, described ground plane are located on the described substrate, and described ground plane comprises a short dot and an earth point;
One first radiation path, described first radiation path are located on the described substrate and are adjacent to described ground plane, and described first radiation path has one first end and one second end, and described first radiation path is provided with first load point of a corresponding described earth point;
One access path, described access path are located on the described substrate, and described access path is by the described first end elongation moulding of described first radiation path;
One second radiation path and one the 3rd radiation path, described second radiation path and described the 3rd radiation path all are located on the described substrate, and described second radiation path and described the 3rd radiation path are by the terminal elongation moulding of described access path; And
One short circuit paths, described short circuit paths are located on the described substrate, and the two ends of described short circuit paths are electrically connected at described first end of described short dot and described first radiation path respectively, and have one second load point on the described short circuit paths;
Wherein, described second radiation path resonates in first operational frequency bands, resonate in the 3rd operational frequency bands in the path that described first radiation path, described access path and described the 3rd radiation path are formed, and the free end of described the 3rd radiation path is coupled in described second end of described first radiation path to resonate in second operational frequency bands.
2. multifrequency antenna according to claim 1, it is characterized in that, described ground plane is a sheet metal, described short dot and described earth point are positioned at a side of described sheet metal, and described first radiation path, described second radiation path, described the 3rd radiation path, described access path and described short circuit paths are positioned at the top of described side.
3. multifrequency antenna according to claim 1 is characterized in that described first radiation path has the sheet metal of two bendings.
4. multifrequency antenna according to claim 3 is characterized in that, described first radiation path is extended by the side that described first end is parallel to described ground plane, and a segment length is extended in vertical again bending, vertically bends and extends into described second end of type by free end again.
5. multifrequency antenna according to claim 4 is characterized in that, described second end of described first radiation path also forms an extension.
6. multifrequency antenna according to claim 5 is characterized in that, described first radiation path has different in width.
7. multifrequency antenna according to claim 3, it is characterized in that, described second radiation path and described the 3rd radiation path are the sheet metal that does not have bending, and described second radiation path and described the 3rd radiation path are by the end of described access path elongation moulding in the opposite direction.
8. multifrequency antenna according to claim 3 is characterized in that, described short circuit paths is one to have the sheet metal of a bending.
9. multifrequency antenna according to claim 1 is characterized in that, described substrate is entity substrate or air substrate.
10. multifrequency antenna according to claim 1 is characterized in that, has a disconnection portion between the free end of described the 3rd radiation path and described second end, to produce coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200044995U CN202004151U (en) | 2011-01-07 | 2011-01-07 | Multi-band antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200044995U CN202004151U (en) | 2011-01-07 | 2011-01-07 | Multi-band antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202004151U true CN202004151U (en) | 2011-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200044995U Expired - Lifetime CN202004151U (en) | 2011-01-07 | 2011-01-07 | Multi-band antenna |
Country Status (1)
| Country | Link |
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| CN (1) | CN202004151U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104425880A (en) * | 2013-08-19 | 2015-03-18 | 宏碁股份有限公司 | Mobile device |
| CN108493584A (en) * | 2018-04-26 | 2018-09-04 | Oppo广东移动通信有限公司 | Housing unit, antenna module and electronic equipment |
| CN110970706A (en) * | 2019-11-20 | 2020-04-07 | 珠海格力电器股份有限公司 | Multimode antenna, terminal, communication method and device of multimode antenna and processor |
-
2011
- 2011-01-07 CN CN2011200044995U patent/CN202004151U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104425880A (en) * | 2013-08-19 | 2015-03-18 | 宏碁股份有限公司 | Mobile device |
| CN108493584A (en) * | 2018-04-26 | 2018-09-04 | Oppo广东移动通信有限公司 | Housing unit, antenna module and electronic equipment |
| CN108493584B (en) * | 2018-04-26 | 2020-01-14 | Oppo广东移动通信有限公司 | Shell assembly, antenna assembly and electronic equipment |
| CN110970706A (en) * | 2019-11-20 | 2020-04-07 | 珠海格力电器股份有限公司 | Multimode antenna, terminal, communication method and device of multimode antenna and processor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hebang Electronic (Suzhou) Co., Ltd. Assignor: Jiabang Science & Technology Co., Ltd. Contract record no.: 2014990000172 Denomination of utility model: Integral multi-frequency antenna used for notebook computer Granted publication date: 20111005 License type: Exclusive License Record date: 20140402 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111005 |