CN105990672A - Double-frequency dipole antenna - Google Patents
Double-frequency dipole antenna Download PDFInfo
- Publication number
- CN105990672A CN105990672A CN201510063345.6A CN201510063345A CN105990672A CN 105990672 A CN105990672 A CN 105990672A CN 201510063345 A CN201510063345 A CN 201510063345A CN 105990672 A CN105990672 A CN 105990672A
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- CN
- China
- Prior art keywords
- frequency
- double
- doublet
- access area
- radiant body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses a double-frequency dipole antenna which comprises a substrate, a grounding region, a radiation main body, a grounding point and a feed point. The grounding region can be arranged on the substrate. The radiation main body can be adjacent to the grounding region, can be arranged on the substrate and can comprise a first radiation body and a second radiation body. The first radiation body can be connected with the second radiation body, and a groove can be formed between the first radiation body and the second radiation body. The size of the radiation main body can be not symmetric to the size of the grounding region. The grounding point can be arranged on the substrate and can be connected to the grounding region. The feed point can be arranged on the substrate and can be connected to the radiation main body. The grounding point and the feed point can be adjacent to each other.
Description
Technical field
The present invention relates to a kind of double frequency doublet, particularly to a kind of simple in construction, low cost and operation frequency
The double frequency coupling pole printing type aerial that band is easily adjusted.
Background technology
Along with the progress of science and technology, portable electric device has become as in life indispensable of people and joins
Standby, for a large amount of uses in response to portable electric device, the antenna of multiple different size or form has left
Issue, applying in the portable electric device that various sizes are the lightest and the handiest (such as: mobile phone,
Notes shape computer etc.) or radio transmitting device (such as: wireless Wireless Router, wireless network card etc.) in.Lift
For example, light structure, transmission usefulness well and can be arranged on portable electric device inwall easily
Planar inverted F-antenna (Planar Inverse-F Antenna, PIFA), unipole antenna (Monopole Antenna)
Or doublet (Dipole Antenna) has been widely used in various portable electric device.
But, the antenna of prior art but has the shortcoming that many makes us dirty disease.Such as, the sky of prior art
Line frequency range is narrower, and to apply on broadband system, its structure can be the most complicated, and is difficult in response to different need
Ask and do frequency band trimming, therefore be very restricted on using.It addition, the antenna of prior art is due to needs
Using mould to produce, and need to assemble, therefore, its cost can be significantly increased.
Therefore, how a kind of multiband antenna is proposed, it is possible to the antenna structure being effectively improved prior art is complicated,
Assemble be difficult to, situation that with high costs and frequency band is difficult to adjust has become an instant problem.
Summary of the invention
Because above-mentioned problem of the prior art, a wherein purpose of the present invention is to provide a kind of double frequency exactly
Doublet, solving that the antenna structure of prior art is complicated, assemble be difficult to, with high costs and frequency band is difficult to
The problem adjusted.
According to a wherein purpose of the present invention, a kind of Double-frequency dipole antenna is proposed.This antenna can comprise substrate,
Access area, radiating principal, earth point and load point.Access area may be disposed on substrate.Radiating principal is adjacent
In access area, radiating principal may be disposed on substrate, and can comprise the first radiant body and the second radiant body, the
It is recessed that one radiant body may connect to have one between the second radiant body, and the first radiant body and the second radiant body
Groove, and the big I of radiating principal is asymmetric with the size of access area.Earth point may be disposed on substrate, and
May connect to access area.Load point may be disposed on substrate, and may connect to radiating principal, earth point and feedback
Access point can be disposed adjacent, and groove can be formed at the enclosed construction at neighbouring load point, toward away from load point direction
Extend, and form hatch frame.
In a preferred embodiment, access area more can comprise a patch so that access area can be L-shaped.
In a preferred embodiment, access area can comprise corresponding two ends, wherein one end in the first direction
Being adjacent at radiating principal to be provided with earth point, the other end can arrange patch, and patch can be in a second direction
Extend so that access area can be L-shaped.
In a preferred embodiment, the area of access area can be more than the area of radiating principal.
In a preferred embodiment, the size of access area is relevant with the impedance matching of Double-frequency dipole antenna.
In a preferred embodiment, groove can extend toward away from load point along third direction, and forms opening
Structure.
In a preferred embodiment, an obtuse angle between third direction and first direction, can be formed.
In a preferred embodiment, it is the widest that the first radiant body can extend formation one to third direction from load point
Structure, the second radiant body can from load point to third direction extend formed a tapered structure.
In a preferred embodiment, the operational frequency bands of the second radiant body can be higher than the operation frequency of the first radiant body
Band.
In a preferred embodiment, the length of the first radiant body and the low frequency operation frequency band of Double-frequency dipole antenna
Relevant.
In a preferred embodiment, the length of the second radiant body and the high-frequency operation frequency band of Double-frequency dipole antenna
Relevant.
In a preferred embodiment, earth point and load point may be disposed between radiating principal and access area.
In a preferred embodiment, groove can be extended by the inside of the one of radiating principal angular radiating principal.
In a preferred embodiment, groove can be connected with the slotted eye within radiating principal.
In a preferred embodiment, the size of slotted eye is relevant with the integrated operation frequency band of Double-frequency dipole antenna.
From the above, double frequency doublet under this invention, it can have one or more following advantage:
(1) one embodiment of the invention can increase come in the way of patch amplification and penetrates the area of main body to utilize and change
Become its integrated operation frequency band so that it is the demand of various application can be met, therefore, use great elasticity.
(2) to utilize the length adjusting the first width beam and the second width beam the most right for one embodiment of the invention
Low frequency operation frequency band and the high-frequency operation frequency band of antenna carry out frequency band trimming, make the scope of application of antenna more
Extensively, it is possible to meet more different demand.
(3) one embodiment of the invention can utilize printing type aerial to realize idea of the invention, therefore gives birth to
Need not during product be produced by mould, it is not required that through assembly program, therefore its cost can significantly drop
Low, make the competitiveness of product greatly improve.
(4) present invention in actual use can closely when still can keep good impedance
Coupling, therefore possesses preferably usefulness.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as to the present invention's
Limit.
Accompanying drawing explanation
Fig. 1 is the first schematic diagram of the first embodiment of the double frequency doublet of the present invention；
Fig. 2 is the second schematic diagram of the first embodiment of the double frequency doublet of the present invention；
Fig. 3 is the first schematic diagram of the second embodiment of the double frequency doublet of the present invention；
Fig. 4 is the second schematic diagram of the second embodiment of the double frequency doublet of the present invention；
Fig. 5 is the first schematic diagram of the 3rd embodiment of the double frequency doublet of the present invention；
Fig. 6 is the second schematic diagram of the 3rd embodiment of the double frequency doublet of the present invention；
Fig. 7 is the first schematic diagram of the 4th embodiment of the double frequency doublet of the present invention；
Fig. 8 is the second schematic diagram of the 4th embodiment of the double frequency doublet of the present invention；
Fig. 9 is the first schematic diagram of the 5th embodiment of the double frequency doublet of the present invention；
Figure 10 is the second schematic diagram of the 5th embodiment of the double frequency doublet of the present invention.
Wherein, reference
1 double frequency doublet
10 substrates
11 radiating principals
111 first radiant bodies
112 second radiant bodies
113 grooves
114 slotted eyes
115 load points
12 access areas
125 earth points
Operational frequency bands before A adjustment
Operational frequency bands after B adjustment
P patch
D1 first direction
D2 second direction
D3 third direction
Detailed description of the invention
Hereinafter with reference to relevant drawings, the embodiment of double frequency doublet under this invention is described, in order to clear
With facilitate accompanying drawing description of it, each parts in accompanying drawing may be exaggerated or minimized ground in size and ratio
Presenting, for making to readily appreciate, the similar elements in following embodiment is to illustrate with identical symbology.
Referring to Fig. 1, it is first schematic diagram of first embodiment of double frequency doublet of the present invention.This
Embodiment is to utilize printing type aerial to realize idea of the invention.As it can be seen, the double frequency coupling of the present embodiment
Pole antenna 1 can comprise substrate 10, access area 12, radiating principal 11, earth point 125 and load point 115.
Radiating principal 11 is adjacent to access area 12, and is arranged on substrate 10, and it can comprise the first radiation
Body 111 and the second radiant body 112, the first radiant body 111 and the second radiant body 112 are connected with each other and the two
Between there is a groove 113, and the operational frequency bands of the second radiant body 112 is higher than the behaviour of the first radiant body 111
Make frequency band.In the present embodiment, radiating principal 11 can be rectangular, and groove 113 is by a left side for radiating principal 11
Inferior horn extends at its center, and has angle with two side shapes respectively of radiating principal 11.In this enforcement
In example, the slotted eye 114 that the inside of radiating principal 11 has, it can be rectangular, and this slotted eye 114 can be with recessed
Groove 113 connects.Load point 115 is arranged on substrate 10, and is connected with radiating principal 11, earth point
125 can be disposed adjacent with load point 115.
In the present embodiment, the groove 113 between the first radiant body 111 and the second radiant body 112 can be shape
A Cheng Yu enclosed construction at load point 115, and can be away from load point 115 along third direction D3
Extend, and form a hatch frame, by figure it is apparent that third direction D3 and first direction
An obtuse angle can be formed between D1.And the first radiant body 111 can prolong to third direction D3 from load point 115
Stretching formation one the widest structure, the second radiant body 112 can extend shape from load point 115 to third direction D3
Become a tapered structure.
Access area 12 may be disposed on substrate 10, and in the present embodiment, access area 12 can be in the first direction
D1 comprises corresponding two ends, and wherein one end is adjacent at radiating principal 11 to be provided with earth point 125,
The other end can arrange patch P, and patch P can extend by D2 in a second direction so that access area 12 can become one
L-shaped, the area of access area 12 can be able to be evident that by figure more than the area of radiating principal 11,
The size and shape of access area 12 is all asymmetric with the size and shape of radiating principal 11, wherein access area
The size of 12 is relevant with the impedance matching of Double-frequency dipole antenna 1, for example, it is possible to change the width of access area 12
Spend to change the impedance matching of Double-frequency dipole antenna 1.Earth point 125 is arranged on substrate 10, and with connect
Area 12 connects.Load point 115 and earth point 125 then can be arranged at radiating principal 11 and access area
In space between 12.
This double frequency doublet 1 can change the first radiant body 111 and the second spoke by special patch or utilization
The length of beam 112 adjusts the operational frequency bands of double frequency doublet 1.Such as, the first radiant body can be changed
The length of 111 is to adjust the low frequency operation frequency band of Double-frequency dipole antenna 1；Such as, the second radiant body can be changed
The length of 112 is to adjust the high-frequency operation frequency band of Double-frequency dipole antenna 1；For example, it is possible to by increasing patch
Slotted eye 114 in radiating principal 11 adjusts the integrated operation frequency band of Double-frequency dipole antenna 1.Additionally, by
In above-mentioned characteristic Design, Double-frequency dipole antenna 1 still can keep good impedance closely when
Coupling, therefore possesses splendid usefulness.
From the foregoing, its integrated operation frequency band not only can be carried out by the Double-frequency dipole antenna 1 of the present embodiment
Adjust, more can independently adjust its low frequency operation frequency band or high-frequency operation frequency band, therefore Double-frequency dipole antenna 1
Different changes can be done according to various different application demands, use more elastic, and range of application is wider,
It is well suited for being applied on various double frequency product.
Referring to Fig. 2, it is second schematic diagram of first embodiment of double frequency doublet of the present invention.As
Shown in figure, the Double-frequency dipole antenna 1 of the present embodiment can operate in the first frequency band (low frequency operation frequency band) and be
WiFi 802.11b/g/n (2.4～2.5GHz) and the second frequency band (high-frequency operation frequency band) are WiFi
The antenna of the wireless communication apparatus of 802.11a (5.15GHz～5.85GHz), and high effect can be provided
Energy.
Additionally, i.e. may be used for the wireless communication apparatus of other operation frequency range after adjusting by the way of above-mentioned,
Such as: LTE-Band 7_2500～2690MHz, LTE-Band 40_2300～2400MHz or LTE-Band
38_2570～2620MHz.
It is noted that the antenna bandwidth of prior art is narrower and is difficult to carry out frequency in response to different demands
Band is finely tuned.Contrary, from the foregoing, the double frequency doublet of the present invention not only can be to its integrated operation
Frequency band is adjusted, and more can independently adjust its low frequency operation frequency band or high-frequency operation frequency band, therefore can be in response to
Various different application demands do different adjustment, use and relatively have elasticity, the most extensive in application.
Additionally, complex on the antenna structure of prior art, therefore produce and be also required to high cost.
Contrary, the double frequency doublet structure of the present invention is relatively simple, and can be in the way of utilizing printing type aerial
Realize, therefore, need not when can produce be produced by mould, it is not required that through assembly program, therefore
The production cost of antenna can significantly reduce, and enables the competitiveness of product to greatly improve.
Furthermore, the double frequency doublet of the present invention is owing to possessing special design, therefore closely when
Still can keep good impedance matching, therefore possess preferably usefulness.
Refer to Fig. 3 and Fig. 4, its be the present invention double frequency doublet the second embodiment first signal
Figure and the second schematic diagram.As it is shown on figure 3, in the present embodiment, utilize and increase patch P in radiating principal
The first half of the slotted eye 114 of 11 adjusts the integrated operation frequency band of Double-frequency dipole antenna 1.Utilize patch P
Fill up the first half in slotted eye 114 and can change the current path of radiating principal 11, to change double frequency dipole
The integrated operation frequency band of antenna 1.As shown in Figure 4, the operational frequency bands before adjustment is represented by A, and adjusts
After operational frequency bands represented by B.
Refer to Fig. 5 and Fig. 6, its be the present invention double frequency doublet the 3rd embodiment first signal
Figure and the second schematic diagram.As it is shown in figure 5, in the present embodiment, the length changing the first width beam 111 is utilized
Degree adjusts the low frequency operation frequency band of Double-frequency dipole antenna 1.Remove a part for the first width beam 111 to change
Become its length and can change the current path of the first width beam 111, to change the low frequency of Double-frequency dipole antenna 1
Operational frequency bands.
As shown in Figure 6, the operational frequency bands before adjustment is represented by A, and the operational frequency bands after adjusting is by B table
Show, by figure this it appears that the low frequency operation frequency band of Double-frequency dipole antenna 1 moves to low frequency direction.
Refer to Fig. 7 and Fig. 8, its be the present invention double frequency doublet the 4th embodiment first signal
Figure and the second schematic diagram.As it is shown in fig. 7, in the present embodiment, the length changing the second width beam 112 is utilized
Degree adjusts the high-frequency operation frequency band of Double-frequency dipole antenna 1.Remove a part for the second width beam 112 to change
Become its length and can change the current path of the second width beam 112, to change the high frequency of Double-frequency dipole antenna 1
Operational frequency bands.
As shown in Figure 8, the operational frequency bands before adjustment is represented by A, and the operational frequency bands after adjusting is by B table
Show, by figure this it appears that the high-frequency operation frequency band of Double-frequency dipole antenna 1 moves to high frequency direction.
Referring to Fig. 9 and Figure 10, it is first the showing of the 5th embodiment of double frequency doublet of the present invention
It is intended to and the second schematic diagram.As it is shown in figure 9, in the present embodiment, utilize and increase patch P in radiating principal
The lower half of the slotted eye 114 of 11 adjusts the high-frequency operation frequency band of Double-frequency dipole antenna 1.Utilize patch P
Fill up the current path that can change radiating principal 11 in the lower half of slotted eye 114, to change double frequency dipole
The high-frequency operation frequency band of antenna 1.
As shown in Figure 10, the operational frequency bands before adjustment is represented by A, and the operational frequency bands after adjusting is by B table
Show, by figure this it appears that the high-frequency operation frequency band of Double-frequency dipole antenna 1 moves to high frequency direction.
From the foregoing, its integrated operation frequency band not only can be adjusted by the Double-frequency dipole antenna of the present invention
Whole, more can independently adjust its low frequency operation frequency band or high-frequency operation frequency band, therefore Double-frequency dipole antenna is permissible
Do different changes according to various different application demands, can possess again splendid usefulness.
In sum, one embodiment of the invention can increase width in the way of patch penetrate main body to utilize to increase
Area, thereby changes its integrated operation frequency band so that it is can meet the demand of various application, therefore, use
Upper great elasticity.
Also, one embodiment of the invention can utilize the length adjusting the first width beam and the second width beam to distinguish
Low frequency operation frequency band and high-frequency operation frequency band to antenna carry out frequency band trimming, make the scope of application of antenna more
For extensively, it is possible to meet more different demand.
And one embodiment of the invention can utilize printing type aerial to realize idea of the invention, therefore produce
Time need not be produced by mould, it is not required that through assembly program, therefore cost can significantly reduce, and makes
The competitiveness of product improves.
It addition, the present invention in actual use can closely when still can keep good resistance
Anti-coupling, therefore can reach splendid usefulness.
Certainly, the present invention also can have other various embodiments, without departing substantially from present invention spirit and the feelings of essence thereof
Under condition, those of ordinary skill in the art work as can make various corresponding change and deformation according to the present invention, but
These change accordingly and deform the protection domain that all should belong to appended claims of the invention.
Claims (15)
1. a double frequency doublet, it is characterised in that comprise:
One substrate；
One access area, is arranged on this substrate；
One radiating principal, is arranged on this substrate, and adjacent to access area, this radiating principal also comprises one
One radiant body and one second radiant body, this first radiant body is connected to this second radiant body, and this first radiation
There is between body and this second radiant body a groove, and the size of this radiating principal is for being asymmetric with this access area
Size；
One earth point, is arranged on this substrate, and is connected to this access area；And
One load point, is arranged on this substrate, and is connected to this radiating principal, this earth point and this load point
Being disposed adjacent, this groove is formed at the enclosed construction at this load point neighbouring, toward away from this load point direction
Extend, and form a hatch frame.
Double frequency doublet the most according to claim 1, it is characterised in that this access area further includes
Patch, makes this access area L-shaped.
Double frequency doublet the most according to claim 2, it is characterised in that this access area is along one
One direction comprises corresponding two ends, and wherein one end is adjacent to this radiating principal, and is provided with this earth point,
The other end arranges this patch, and this patch extends along a second direction so that this access area is L-shaped.
Double frequency doublet the most according to claim 2, it is characterised in that the area of this access area
Area more than this radiating principal.
Double frequency doublet the most according to claim 2, it is characterised in that the size of this access area
Relevant with the impedance matching of this Double-frequency dipole antenna.
Double frequency doublet the most according to claim 3, it is characterised in that this groove is toward away from this
Load point extends along a third direction, and forms this hatch frame.
Double frequency doublet the most according to claim 6, it is characterised in that this third direction with should
An obtuse angle is formed between first direction.
Double frequency doublet the most according to claim 6, it is characterised in that this first radiant body is certainly
This load point to this third direction extend formed a widest structure, this second radiant body from this load point to this
Third direction extends and forms a tapered structure.
Double frequency doublet the most according to claim 1, it is characterised in that this second radiant body
Operational frequency bands is higher than the operational frequency bands of this first radiant body.
Double frequency doublet the most according to claim 1, it is characterised in that this first radiant body
Length is relevant with the low frequency operation frequency band of this Double-frequency dipole antenna.
11. double frequency doublets according to claim 1, it is characterised in that this second radiant body
Length is relevant with the high-frequency operation frequency band of this Double-frequency dipole antenna.
12. double frequency doublets according to claim 1, it is characterised in that this earth point and this feedback
Access point is arranged between this radiating principal and this access area.
13. double frequency doublets according to claim 1, it is characterised in that this groove is by this radiation
The inside of the one of main body this radiating principal angular extends.
14. double frequency doublets according to claim 13, it is characterised in that this groove and this spoke
The slotted eye penetrating body interior connects.
15. double frequency doublets according to claim 14, it is characterised in that the size of this slotted eye
Relevant with the integrated operation frequency band of this Double-frequency dipole antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510063345.6A CN105990672A (en) | 2015-02-06 | 2015-02-06 | Double-frequency dipole antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510063345.6A CN105990672A (en) | 2015-02-06 | 2015-02-06 | Double-frequency dipole antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105990672A true CN105990672A (en) | 2016-10-05 |
Family
ID=57037438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510063345.6A Pending CN105990672A (en) | 2015-02-06 | 2015-02-06 | Double-frequency dipole antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105990672A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI259608B (en) * | 2005-08-12 | 2006-08-01 | Yageo Corp | A dual-band composite antenna |
| CN1832256A (en) * | 2005-03-09 | 2006-09-13 | 连展科技（深圳）有限公司 | Upside down F-shape antenna |
| CN101807741A (en) * | 2009-02-12 | 2010-08-18 | 纬创资通股份有限公司 | Electronic device and antenna module thereof |
| CN102396109A (en) * | 2009-04-13 | 2012-03-28 | 莱尔德技术股份有限公司 | Multi-band dipole antennas |
| CN102986086A (en) * | 2010-05-10 | 2013-03-20 | 平衍技术公司 | Antenna having planar conducting elements |
-
2015
- 2015-02-06 CN CN201510063345.6A patent/CN105990672A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1832256A (en) * | 2005-03-09 | 2006-09-13 | 连展科技（深圳）有限公司 | Upside down F-shape antenna |
| TWI259608B (en) * | 2005-08-12 | 2006-08-01 | Yageo Corp | A dual-band composite antenna |
| CN101807741A (en) * | 2009-02-12 | 2010-08-18 | 纬创资通股份有限公司 | Electronic device and antenna module thereof |
| CN102396109A (en) * | 2009-04-13 | 2012-03-28 | 莱尔德技术股份有限公司 | Multi-band dipole antennas |
| CN102986086A (en) * | 2010-05-10 | 2013-03-20 | 平衍技术公司 | Antenna having planar conducting elements |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161005 |
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