CN203288740U - Adjustable multiband antenna - Google Patents
Adjustable multiband antenna Download PDFInfo
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- CN203288740U CN203288740U CN2013203230167U CN201320323016U CN203288740U CN 203288740 U CN203288740 U CN 203288740U CN 2013203230167 U CN2013203230167 U CN 2013203230167U CN 201320323016 U CN201320323016 U CN 201320323016U CN 203288740 U CN203288740 U CN 203288740U
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Abstract
The utility model provides an adjustable multiband antenna, which comprises an antenna arm, a grounding end and a feed end, wherein the grounding end and the feed end are located at two sides of the antenna arm respectively and arranged in a staggered mode along the width direction of the antenna arm, the length direction of the antenna arm is provided with at least one slot and a plurality of debugging used slot lines crossing the slot, and the debugging used slot lines divide the slot into a plurality of sub-slots and adjust the size of the sub-slot when removed. Therefore, the adjustable multiband antenna provided by the utility model can remove a specific debugging used slot line according to device requirements, an optimal bandwidth of each frequency band is realized, adjustable multiband antennas with a unified specification are applied to different devices, and the cost is reduced.
Description
Technical field
The utility model relates to wireless communication technology field, relates in particular to a kind of adjustable multiband antenna.
Background technology
Because present communication product has increasing function, and the space of product is more and more less, therefore usually needs individual antenna to complete the communication of a plurality of frequency ranges.Individual antenna will be realized the demand of double frequency-band, not only to meet the radiation demand of each frequency range but also will meet the bandwidth demand of each frequency range, but double frequency band aerial is when the performance of a kind of frequency range of debugging (radiation requirement and bandwidth requirement), and another frequency range also can be affected and can't meet its performance requirement.
Figure 1A is the structure of bluetooth common in prior art-wifi double frequency band aerial.Its feed end 11 and earth terminal 12 are positioned at the both sides of the same position of antenna arm 10.Feed end 11 and earth terminal 12 are take the antenna arm 10a in left (dotted line left side) as the bluetooth band antenna, length is approximately the quarter-wave of bluetooth frequency range centre frequency 2441MHz, feed end 11 and earth terminal 12 are take the antenna arm 10b on right (dotted line right side) as the wifi band antenna, and length is approximately the quarter-wave of wifi frequency range centre frequency 5500MHz.To the result of this antenna S11 parameter (return loss characteristic) performance test as shown in Figure 1B, can find out that from Figure 1B this antenna has good bandwidth in the bluetooth frequency range, when for example loss value is for-10dB, corresponding bandwidth is 129MHz, be the abscissa difference of 3,4 point-to-point transmissions in Figure 1B, but at the darkest resonance of wifi frequency range, only have-3dB left and right (as shown in the ordinate of Figure 1B mid point 2).Therefore this antenna needs matching parts to mate, but matching parts can affect the bandwidth of another frequency band simultaneously at the bandwidth requirement that meets a frequency range, finally can only do compromise between the bandwidth of two frequency ranges.
And in the actual debug process of antenna, antenna often is subject to the impact of extraneous factor (metalwork around product casing for example, antenna), need to readjust the length of antenna and the length of the line of rabbet joint, and obvious above-mentioned antenna is difficult to realize, need to again make, and causes cost and manpower waste.
Therefore, need a kind of adjustable multiband antenna, to avoid above-mentioned defect.
The utility model content
The purpose of this utility model is to provide a kind of adjustable multiband antenna, can be in the situation that do not have matching parts to meet radiation demand and the bandwidth demand of a plurality of frequency ranges.
For addressing the above problem, the utility model provides a kind of adjustable multiband antenna, comprises antenna arm, earth terminal and feed end; Described earth terminal and feed end lay respectively at described antenna arm both sides and along described antenna arm Width, shift to install, described antenna arm is provided with at least one fluting and along its length across many debugging line of rabbet joint in described fluting, the size that described debugging is divided into described fluting a plurality of pilot trench and regulates pilot trench when removing with the line of rabbet joint.
Further, the distance of described earth terminal and the dislocation of described feed end is 2mm～6mm.
Further, the groove width of described fluting is 1mm～3mm.
Further, described debugging is uniformly distributed or non-uniform Distribution with the line of rabbet joint, and live width is identical or different.
Further, the line of rabbet joint of described feed end both sides is identical and be uniformly distributed respectively.
Further, described antenna arm is divided into low-frequency antenna radiation arm and high frequency antenna radiation arm by described feed end, and the debugging of described low-frequency antenna radiation arm place side is 0.5mm～1mm with the live width of the line of rabbet joint, and the live width of pilot trench is 0.5mm～1mm; The debugging of described high frequency antenna radiation arm place side is 0.2mm～0.5mm with the live width of the line of rabbet joint, and the live width of pilot trench is 0.2mm～0.5mm.
Further, described debugging is one-body molded with the line of rabbet joint and described antenna arm, cuts off one and debugs with the line of rabbet joint to be communicated with two adjacent pilot trench, forms new pilot trench.
Further, described fluting is one, and described adjustable multiband antenna is bluetooth-wifi double frequency band aerial.
Compared with prior art, the adjustable multiband antenna that the utility model provides comprises antenna arm, earth terminal and feed end, described earth terminal and feed end lay respectively at described antenna arm both sides and along described antenna arm Width, shift to install, described antenna arm is provided with at least one fluting and along its length across many debugging line of rabbet joint in described fluting, the size that described debugging is divided into described fluting a plurality of pilot trench and regulates pilot trench when removing with the line of rabbet joint.Thereby adjustable multiband antenna of the present utility model can remove the specific debugging line of rabbet joint according to requirement on devices, realizes each optimum band bandwidth, and the adjustable multiband antenna of unified specification is applied on different components, reduces costs.
Description of drawings
Figure 1A is the structural representation of a kind of bluetooth-wifi double frequency band aerial in prior art;
Figure 1B is the S11 characteristic curve of the bluetooth shown in Figure 1A-wifiI double frequency band aerial;
Fig. 2 A is the structural representation of the adjustable bluetooth-wifi double frequency band aerial of the utility model specific embodiment;
Fig. 2 B is the S11 characteristic curve of the adjustable bluetooth shown in Fig. 2 A-wifi double frequency band aerial;
Fig. 3 A to 3H is structural representation and the S11 characteristic curve thereof in the adjustable bluetooth of the utility model-wifi double frequency band aerial debug process.
Embodiment
Core concept of the present utility model is to disclose a kind of adjustable multiband antenna, described adjustable multiband antenna comprises antenna arm, earth terminal and feed end, described earth terminal and feed end lay respectively at described antenna arm both sides and along described antenna arm Width, shift to install, described antenna arm is provided with at least one fluting and along its length across many debugging line of rabbet joint in described fluting, the size that described debugging is divided into described fluting a plurality of pilot trench and regulates pilot trench when removing with the line of rabbet joint.Thereby adjustable multiband antenna of the present utility model can remove the specific debugging line of rabbet joint according to requirement on devices, realizes each optimum band bandwidth, and the adjustable multiband antenna of unified specification is applied on different components, reduces costs.
, for the purpose of this utility model, feature are become apparent, below in conjunction with accompanying drawing, embodiment of the present utility model is further described, yet the utility model can be realized with different forms, should not think and just be confined to described embodiment.
Please refer to Fig. 2 A, the present embodiment provides a kind of adjustable multiband antenna, comprises antenna arm 20, earth terminal 22 and feed end 21; Described earth terminal 22 and feed end 21 lay respectively at described antenna arm 20 both sides and along described antenna arm 20 Widths, shift to install, described antenna arm 20 is provided with at least one fluting and along its length across many debugging line of rabbet joint in described fluting, described debugging is divided into a plurality of pilot trench with the line of rabbet joint with described fluting and changes the size of pilot trench by the mode that removes or cut off, and makes thus antenna arm 20 be scalariform.Wherein, described earth terminal 22 is 2mm～6mm with the distance of described feed end 21 dislocation.The groove width of described fluting is 1mm～3mm.
Preferably, the debugging line of rabbet joint in described fluting, take feed end 21 positions as line of demarcation, left side is uniformly distributed, right side is uniformly distributed, the line of rabbet joint that is feed end 21 both sides is identical and be uniformly distributed respectively, and the debugging of feed end 21 left sides (being earth terminal 21 place sides) is 0.5mm～1mm with the live width of line of rabbet joint 202a, and the live width of pilot trench 201a is 0.5mm～1mm; The debugging on right side is 0.2mm～0.5mm with the live width of line of rabbet joint 202b, and the live width of pilot trench 201b is 0.2mm～0.5mm.Be that described antenna arm is divided into low-frequency antenna radiation arm and high frequency antenna radiation arm by described feed end, the debugging of described low-frequency antenna radiation arm place side is 0.5mm～1mm with the live width of line of rabbet joint 202a, and the live width of pilot trench 201a is 0.5mm～1mm; The debugging of described high frequency antenna radiation arm place side is 0.2mm～0.5mm with the live width of line of rabbet joint 202b, and the live width of pilot trench is 0.2mm～0.5mm.
In other embodiment of the present utility model, described debugging can be uniformly distributed fully with the line of rabbet joint, and the live width of the line of rabbet joint is identical, and the live width of pilot trench is also identical.
In the present embodiment, described antenna arm 20 is rectangle, the heart is established a fluting along its length therein, forms a kind of adjustable bluetooth-wifi double frequency band aerial, as shown in Figure 2 A, feed end 21 is 4mm with earth terminal dislocation distance, the groove width of described fluting is 1mm, and debugging is 1mm with the live width of line of rabbet joint 202a, pilot trench 201a, and debugging is 0.5mm with the live width of line of rabbet joint 202b, pilot trench 201b, Fig. 2 B is depicted as the s parameter of the antenna of Fig. 2 A, and visible resonance frequency is toward having hanged down frequency deviation.The bandwidth of bluetooth frequency range (low-frequency range)-10dB is 121MHz, the darkest resonance of wifi frequency range (high band) is in-13dB left and right, bandwidth is 426MHz, can be with the bandwidth adjustment of wifi frequency range to 700MHz with the line of rabbet joint by cutting off some debugging, thereby the antenna of the present embodiment can be regulated pilot trench size (line of rabbet joint) very easily, can use the line of rabbet joint with cutting off debugging when needs enlarge the line of rabbet joint, just can adjust according to actual conditions the length of pilot trench (line of rabbet joint).
The utility model also provides a kind of adjustment method of adjustable multiband antenna, comprising:
A: the dislocation distance of regulating the relative feed end of described earth terminal; And/or
B: cut short described antenna arm, the clip of residue antenna arm is partly for debugging with the line of rabbet joint or remaining described antenna arm end; And/or
C: near removing described feed end, one section continuous debugging changes the size of pilot trench with the line of rabbet joint.
Adjustment method of the present utility model can only adopt the single debugging of a or b or c, also can adopt a, b, and two or three in c makes up debugging.
Below, take adjustable bluetooth-wifi double frequency band aerial as example, in conjunction with the adjustment method of the specific embodiment shown in Fig. 2 A and Fig. 2 B and Fig. 3 A to 3H to adjustable multiband antenna of the present utility model, be described in detail.
Please refer to Fig. 3 A, 3B, for the effect of single use a debugging (namely regulating the dislocation distance of the relative feed end of described earth terminal) is described better, the limiting case of choosing unslotted illustrates.With the relative feed end 21 of earth terminal 22 4mm that moves to left, purpose is to allow the antenna of wifi frequency range produce darker resonance.in figure, the antenna arm of feed end 21 to earth terminal 22 take a left side is bluetooth low-frequency antenna radiation arm, the antenna arm of feed end 21 to earth terminal 22 take the right side is wifi high frequency antenna radiation arm, the earth terminal 22 rear bluetooth that moves to left, the antenna resonance point of wifi two frequency ranges is skew a little to some extent, behind the position of fine setting earth terminal 22 or feed end 21, make the antenna energy resonance of feed end both sides in frequency band range separately, its S11 result as shown in Figure 3 B, compare shown in Figure 1A and 1B, the antenna resonance of wifi frequency range deepened (be deeper than-10dB), and-the 10dB bandwidth is 352MHz, and the beamwidth of antenna of bluetooth frequency range has diminished a bit a little,-10dB bandwidth is 127MHz, bandwidth has reduced 2MHz.Although but had very large improvement than top situation also failed to meet the wifi700MHz bandwidth requirement this moment.But by increasing respectively bluetooth band antenna and wifi band antenna bandwidth after fluting on antenna arm 20, as shown in Figure 3 C, fluting 200 is arranged on the antenna arm center to the fluting aft antenna, and groove width is 1mm.S11 result after fluting as shown in Figure 3 D, can see the bluetooth frequency range-the 10dB bandwidth is 137MHz, than having increased the 10MHz bandwidth before fluting, and wifi frequency range-10dB bandwidth is 836MHz, has met the requirement of wifi frequency range fully.
And in the actual debug process of antenna, cut short described antenna arm by b(, the clip of residue antenna arm partly for debugging with the line of rabbet joint or remaining described antenna arm end), c(remove described feed end near one section continuous debugging change the size of pilot trench with the line of rabbet joint) single debugging or combination debugging more convenient, more save cost.
The combination adjustment method of b and c is described below in conjunction with accompanying drawing 2A, 3E to 3H.
At first, carry out b debugging, please refer to Fig. 2 A and 3E, in order to regulate the S parameter of antenna, antenna arm 20 is cut short respectively from two ends to first debugging outermost end and used the line of rabbet joint, can regulate like this antenna arm length of bluetooth and wifi and total slotting length.Through after above-mentioned adjustment operation, the S11 parameter of antenna such as Fig. 3 F, this bluetooth-wifi double frequency band aerial resonance is in the bluetooth of required work, wifi frequency range, but the resonance of its wifi frequency range is very shallow.
Then carry out the c debugging, the continuous debugging line of rabbet joint of an end in the middle of continuing to cut off, remain leftmost two line of rabbet joint and rightmost three debugging line of rabbet joint, form new pilot trench, obtain the bluetooth shown in Fig. 3 G-wifi double frequency band aerial, the S11 parameter of this bluetooth-wifi double frequency band aerial is as shown in Fig. 3 H, and bluetooth frequency range-10dB bandwidth is 163MHz, and wifi frequency range-10dB bandwidth is 890MHz, meets the requirement of bandwidth separately of bluetooth, wifi double frequency-band fully.
In sum, the adjustable multiband antenna that the utility model provides, comprise antenna arm, earth terminal and feed end, described earth terminal and feed end lay respectively at described antenna arm both sides and along described antenna arm Width, shift to install, described antenna arm is provided with at least one fluting and along its length across many debugging line of rabbet joint in described fluting, the size that described debugging is divided into described fluting a plurality of pilot trench and regulates pilot trench when removing with the line of rabbet joint.Thereby adjustable multiband antenna of the present utility model can remove the specific debugging line of rabbet joint according to requirement on devices, realizes each optimum band bandwidth, and the adjustable multiband antenna of unified specification is applied on different components, reduces costs.
Obviously, those skilled in the art can carry out various changes and modification and not break away from spirit and scope of the present utility model utility model.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model also is intended to comprise these changes and modification interior.
Claims (8)
1. adjustable multiband antenna, comprise antenna arm, earth terminal and feed end, it is characterized in that, described earth terminal and feed end lay respectively at described antenna arm both sides and along described antenna arm Width, shift to install, described antenna arm is provided with at least one fluting and along its length across many debugging line of rabbet joint in described fluting, the size that described debugging is divided into described fluting a plurality of pilot trench and regulates pilot trench when removing with the line of rabbet joint.
2. adjustable multiband antenna as claimed in claim 1, is characterized in that, the distance of described earth terminal and the dislocation of described feed end is 2mm～6mm.
3. adjustable multiband antenna as claimed in claim 1, is characterized in that, the groove width of described fluting is 1mm～3mm.
4. adjustable multiband antenna as claimed in claim 1, is characterized in that, described debugging is uniformly distributed or non-uniform Distribution with the line of rabbet joint, and live width is identical or different.
5. adjustable multiband antenna as claimed in claim 1, is characterized in that, the line of rabbet joint of described feed end both sides is identical and be uniformly distributed respectively.
6. adjustable multiband antenna as claimed in claim 5, it is characterized in that, described antenna arm is divided into low-frequency antenna radiation arm and high frequency antenna radiation arm by described feed end, the debugging of described low-frequency antenna radiation arm place side is 0.5mm～1mm with the live width of the line of rabbet joint, and the live width of pilot trench is 0.5mm～1mm; The debugging of described high frequency antenna radiation arm place side is 0.2mm～0.5mm with the live width of the line of rabbet joint, and the live width of pilot trench is 0.2mm～0.5mm.
7. adjustable multiband antenna as claimed in claim 1, is characterized in that, described debugging is one-body molded with the line of rabbet joint and described antenna arm, cuts off one and debug with the line of rabbet joint to be communicated with two adjacent pilot trench, forms new pilot trench.
8. adjustable multiband antenna as claimed in claim 1, is characterized in that, described fluting is one, and described adjustable multiband antenna is bluetooth-wifi double frequency band aerial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203230167U CN203288740U (en) | 2013-06-05 | 2013-06-05 | Adjustable multiband antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203230167U CN203288740U (en) | 2013-06-05 | 2013-06-05 | Adjustable multiband antenna |
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| Publication Number | Publication Date |
|---|---|
| CN203288740U true CN203288740U (en) | 2013-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203230167U Expired - Fee Related CN203288740U (en) | 2013-06-05 | 2013-06-05 | Adjustable multiband antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337693A (en) * | 2013-06-05 | 2013-10-02 | 青岛歌尔声学科技有限公司 | An adjustable multiband antenna and a debugging method |
| CN112368889A (en) * | 2018-07-05 | 2021-02-12 | 株式会社电装 | Antenna device |
-
2013
- 2013-06-05 CN CN2013203230167U patent/CN203288740U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337693A (en) * | 2013-06-05 | 2013-10-02 | 青岛歌尔声学科技有限公司 | An adjustable multiband antenna and a debugging method |
| CN112368889A (en) * | 2018-07-05 | 2021-02-12 | 株式会社电装 | Antenna device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20160605 |