CN205985336U - Dual -frenquency hanging antenna - Google Patents
Dual -frenquency hanging antenna Download PDFInfo
- Publication number
- CN205985336U CN205985336U CN201620997927.1U CN201620997927U CN205985336U CN 205985336 U CN205985336 U CN 205985336U CN 201620997927 U CN201620997927 U CN 201620997927U CN 205985336 U CN205985336 U CN 205985336U
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- double
- frequency
- balun
- clad
- sided copper
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Abstract
The utility model discloses a dual -frenquency hanging antenna, including the two -sided copper high frequency PCB board that covers, be equipped with the radiating element of 2.4GHz frequency channel resonance and the radiating element of 5.0GHz frequency channel resonance on it, 2.4GHz the radiating element of frequency channel resonance includes a set of 2.4GHz half -wave doublet, 5.0GHz the radiating element of frequency channel resonance includes two sets of 5.0GHz half -wave doublet, the latter half setting of each 5.0GHz half -wave doublet of group on positive panel, all connect through the S bending transmission line on the positive panel, still be equipped with positive impedance match line on the two -sided positive panel that covers copper high frequency PCB board, the copper hole is sunk to distributing point and positive ground connection. The utility model discloses can solve the difficult processing of traditional dual -frenquency antenna, difficult debugging, with high costs and problem that the performance is poor, simple manufacture, easily batch production, the volume is less, weight is light, the installation of the antenna of being convenient for, the loss is less, impedance match is better, the standing -wave ratio is lower.
Description
Technical field
This utility model is related to field of antenna, particularly to a kind of double frequency wall aerial.
Background technology
The double-frequency directional antenna major part of existing WLAN is contained in a sky using the antenna of two width different frequencies
In line shell, such structure certainly will cause volume big, high cost, and debugging is difficult, is not suitable for producing in batches, and between two width antennas
It is also easy to produce interference, the effect that product uses is poor；Small part dual-band antenna is not due to can solve low standing wave and good side
The problem of tropism is it is difficult to meet application in wireless network covering for the WLAN terminal device.
Utility model content
The technical problems to be solved in the utility model is, for the drawbacks described above of prior art, provides one kind can solve
The difficult processing of traditional dual-band antenna, the problem of difficult debugging, high cost and poor performance, make simple, be easy to batch production, volume relatively
Little, lighter in weight, the installation being easy to antenna, loss is less, impedance matching is preferable, standing-wave ratio is relatively low double frequency wall aerial.
This utility model solves its technical problem and be employed technical scheme comprise that：Construct a kind of double frequency wall aerial, including
Double-sided copper-clad frequency PCB plate, described double-sided copper-clad frequency PCB plate is provided with radiating doublet and the 5.0GHz of 2.4GHz frequency band resonance
The radiating doublet of frequency band resonance, the radiating doublet of described 2.4GHz frequency band resonance includes one group of 2.4GHz half-wave doublet, institute
The radiating doublet stating 5.0GHz frequency band resonance includes two groups of 5.0GHz half-wave doublets, and described in one group, 2.4GHz half-wave symmetry shakes
The top half of son is arranged in the front plate of described double-sided copper-clad frequency PCB plate, and by the connecting line in described front plate even
Connect, the latter half of 5.0GHz half-wave doublet described in each group is arranged on the front plate of described double-sided copper-clad frequency PCB plate
On, all connected by the S bending transmission line in described front plate, the front plate of described double-sided copper-clad frequency PCB plate is additionally provided with
Front impedance matching line, distributing point and the heavy copper hole of front ground connection, described front impedance matching line includes the 5th balancedunbalanced and turns
Parallel operation, the 6th balun and the 7th balun, the one of described 5th balun
End is connected with the centre position of the connecting line in described front plate, and the other end of described 5th balun passes through institute
The one end stating the 6th balun with described 7th balun is connected, described 7th balancedunbalanced
The other end of transducer connects described distributing point, and the heavy copper hole of described front ground connection is arranged on the lower section of described distributing point.
The symmetrical position of S bending transmission line in double frequency wall aerial described in the utility model, in two described front plate
The centre position of the S bending transmission line on the both sides of described front impedance matching line, and each described front plate is respectively positioned on
On connecting line in described front plate.
In double frequency wall aerial described in the utility model, the latter half of 2.4GHz half-wave doublet described in a group
Arrange on the backplate of described double-sided copper-clad frequency PCB plate, and connected by the connecting line on described backplate, described in each group
The top half of 5.0GHz half-wave doublet is arranged on the backplate of described double-sided copper-clad frequency PCB plate, all by described
S bending transmission line on backplate connects.
In double frequency wall aerial described in the utility model, the backplate of described double-sided copper-clad frequency PCB plate also sets
Back side impedance matching line, back-side ground connecting line and back-side ground is had to sink copper hole, one end of described back-side ground connecting line and institute
The centre position stating the connecting line on backplate connects, and described back side impedance matching is passed through in one end of described back-side ground connecting line
Line reaches the other end, and the other end of described back-side ground connecting line copper hole heavy with described back-side ground is connected.
In double frequency wall aerial described in the utility model, described back side impedance matching line includes the tenth balancedunbalanced
Transducer.
In double frequency wall aerial described in the utility model, the thickness of described double-sided copper-clad frequency PCB plate is 1mm, long
Spend for 87mm, width is 72mm, and described double-sided copper-clad frequency PCB plate adds up to above aluminium sheet, and the thickness of described aluminium sheet is
1mm, length is 97mm, a width of 82mm, and described aluminium sheet is as the reflecting plate of described double frequency wall aerial.
In double frequency wall aerial described in the utility model, the S bending transmission line on each described backplate is symmetrical
The equal position in centre position of the S bending transmission line on the both sides of described back-side ground connecting line, and each described backplate
On the connecting line on described backplate.
In double frequency wall aerial described in the utility model, the length of described 5th balun is
14.7mm～14.9mm, the width of described 5th balun is 2.4mm～2.6mm；Described 6th balance is uneven
The length of weighing apparatus transducer is 13.4mm～13.6mm, and the width of described 6th balun is 4.7mm～4.9mm；
The length of described 7th balun is 8.0mm～8.2mm, and the width of described 7th balun is
4.4mm～4.6mm.
In double frequency wall aerial described in the utility model, the length of described tenth balun is
4.9mm～5.1mm.
Implement double frequency wall aerial of the present utility model, have the advantages that：Due to the distributing point of antenna be not
The centre feed of two radiating doublet transmission lines, but by one section of front impedance matching line rear feed electrical connection, and described
Three baluns are devised on the transmission line of front plate of double-sided copper-clad frequency PCB plate so that the resistance of antenna
Anti- and coaxial cable impedance forms conjugate impedance match, and the transmission line of the radiating doublet of 5.0GHz frequency band resonance adopts S bending to design,
I.e. bending design, this design can reduce the length of this double-sided copper-clad frequency PCB plate, also can increase bandwidth, simultaneously in impedance
Coupling aspect also plays the effect of coupled resonance, thus can reach perfect electrical property in the confined space and volume and refer to
Mark, it breaches the limitation of traditional wall hanging beam antenna single frequency band radiation it is achieved that the directed radiation of multiband, becomes simultaneously
This is more cheap, so it can solve the problems, such as the difficult processing of traditional dual-band antenna, difficult debugging, high cost and poor performance, making
Simply, it is easy to batch production, small volume, lighter in weight, the installation being easy to antenna, loss is less, impedance matching is preferable, standing wave
Than relatively low.
Brief description
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or in description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before not paying creative labor
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation in one embodiment of this utility model double frequency wall aerial；
Fig. 2 is the structural representation of the front plate of double-sided copper-clad frequency PCB plate in described embodiment；
Fig. 3 is the structural representation of the backplate of double-sided copper-clad frequency PCB plate in described embodiment；
Fig. 4 is the scale diagrams of the front plate of double-sided copper-clad frequency PCB plate in described embodiment；
Fig. 5 is the scale diagrams of the backplate of double-sided copper-clad frequency PCB plate in described embodiment；
Fig. 6 be in described embodiment double frequency wall aerial in the measurement direction figure of 2450MHz frequency；
Fig. 7 be in described embodiment double frequency wall aerial in the measurement direction figure of 5500MHz frequency；
Fig. 8 is the standing wave pattern of double frequency wall aerial test in described embodiment.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work
The every other embodiment being obtained, broadly falls into the scope of this utility model protection.
In this utility model double frequency wall aerial embodiment, the structural representation of this double frequency wall aerial is as shown in Figure 1.
Fig. 2 is the structural representation of the front plate of double-sided copper-clad frequency PCB plate in the present embodiment；Fig. 3 is double-sided copper-clad in the present embodiment
The structural representation of the backplate of frequency PCB plate.In the present embodiment, this double frequency wall aerial includes double-sided copper-clad frequency PCB plate
01, this double-sided copper-clad frequency PCB plate 01 is provided with the radiating doublet B of 2.4GHz frequency band resonance and the radiation of 5.0GHz frequency band resonance
Oscillator A, wherein, the radiating doublet B of 2.4GHz frequency band resonance includes one group of 2.4GHz half-wave doublet, and gain is left in 6dBi
Right.The radiating doublet A of 5.0GHz frequency band resonance includes two groups of 5.0GHz half-wave doublets, and gain is in 8dBi.
The top half of above-mentioned one group of 2.4GHz half-wave doublet arranges the front plate of double-sided copper-clad frequency PCB plate 01
On, because its bandwidth is not wide, the connecting line 2 directly passing through in front plate couples together.Each group of 5.0GHz half-wave doublet
The latter half is arranged in the front plate of double-sided copper-clad frequency PCB plate 01, and all by the S bending transmission line in front plate even
Connect, wherein, the S bending transmission line of front plate upper left side be labeled as 4, being labeled as of S bending transmission line on right side in front plate
3.Using S bending transmission line in order to reduce height dimension, and reach perfect electricity in limited space and volume
Performance indications, simultaneously this method for designing also can increase bandwidth, also play the effect of coupled resonance in terms of the coupling of impedance.
In the present embodiment, the front plate of this double-sided copper-clad frequency PCB plate 01 is additionally provided with front impedance matching line, distributing point
8 and the heavy copper hole 9 of front ground connection, wherein, the 5th balun 5 that front impedance matching line includes being sequentially connected in series, the
Six baluns 6 and the 7th balun 7, wherein, one end of the 5th balun 5 with
The centre position of the connecting line 2 in front plate connects, and the other end of the 5th balun 5 passes through the 6th balance injustice
Weighing apparatus transducer 6 is connected with one end of the 7th balun 7, and the other end of the 7th balun 7 connects
Distributing point 8, the heavy copper hole 9 of front ground connection is arranged on the lower section of distributing point 8.Heavy copper hole 9 effect of front ground connection is so that double-sided copper-clad
The front plate of frequency PCB plate 01 and and double-sided copper-clad frequency PCB plate 01 backplate on ground connection can effectively connection conducting.With
When be also with coaxial cable outer conductor ground connection welding place, with the ground plane on the backplate of double-sided copper-clad frequency PCB plate 01
Connect conducting.
In the present embodiment, the distributing point of antenna is not the centre feed in two radiating doublet transmission lines, but in transmission
Bottom centre's feed below the center of line, so can make the impedance of this double frequency wall aerial more mate.Above distributing point 8
Front impedance matching line adopt the 5th balun 5, the 6th balun 6 and the 7th balance uneven
Weighing apparatus transducer 7, both can increase bandwidth, also play the effect of coupled resonance simultaneously in terms of the coupling of impedance.Make electric current
Imbalance is changed into balancing, and forms broadband, the characteristic of low standing wave, thus reach the conjugate impedance match of antenna impedance.
This utility model can solve the problems, such as the difficult processing of traditional dual-band antenna, difficult debugging, high cost and poor performance, making
Simply, it is easy to batch production, small volume, lighter in weight, the installation being easy to antenna, loss is less, impedance matching is preferable, standing wave
Than relatively low.
In the present embodiment, the S bending transmission line in two front plate is symmetrically positioned in the both sides of front impedance matching line, and often
The centre position of the S bending transmission line in one front plate is respectively positioned on the connecting line 2 in front plate.
The latter half of above-mentioned one group of 2.4GHz half-wave doublet arranges the backplate of double-sided copper-clad frequency PCB plate 01
On, and connected by the connecting line on backplate, the top half of each group of 5.0GHz half-wave doublet is arranged on two-sided covering
On the backplate of copper frequency PCB plate 01, all connected by the S bending transmission line on backplate.Double-sided copper-clad frequency PCB plate 01
The heavy copper hole 12 of back side impedance matching line 10, back-side ground connecting line 11 and back-side ground is additionally provided with backplate, back-side ground is even
One end of wiring 11 is connected with the centre position of the connecting line 13 on backplate, and one end of back-side ground connecting line 11 is also by the back of the body
Face impedance matching line 10 reaches the other end, and the other end of back-side ground connecting line 11 copper hole 12 heavy with back-side ground is connected.The back side
Impedance matching line 10 includes the tenth balun.Carried on the back using adding on the backplate of double-sided copper-clad frequency PCB plate 01
The way of face impedance matching line 10, can play, to the impedance matching of 2.4GHz and 5.0GHz frequency range, the effect that resonance couples.For
For back-side ground connecting line 11, the size of ground plane directly affects inductance on double-sided copper-clad frequency PCB plate 01 and electric capacity exists
Distribution on antenna, can adjust the optimum size of ground plane according to impedance matching.
In the present embodiment, the S bending transmission line 14 on each backplate is symmetrically positioned in the two of back-side ground connecting line 11
The centre position of the S bending transmission line 14 on side, and each backplate is respectively positioned on the connecting line 13 on backplate.
In the present embodiment, the loss of this double-sided copper-clad frequency PCB plate 01 is less, the thickness of this double-sided copper-clad frequency PCB plate 01
Spend for 1mm, length is 87mm, width is 72mm.This double-sided copper-clad frequency PCB plate 01 adds up to above aluminium sheet, the thickness of aluminium sheet
Spend for 1mm, length is 97mm, a width of 82mm, and aluminium sheet is as the reflecting plate of this double frequency wall aerial, reflecting plate and this double-sided copper-clad
Height between frequency PCB plate 01 can be adjusted according to the requirement of performance indications.The back side of this double-sided copper-clad frequency PCB plate 01
The earth terminal that copper part is antenna of covering on plate, is connected with the outer conductor of the coaxial cable in 50 Europe copper hole 12 heavy with back-side ground and leads
Logical, inner wire is connected conducting with distributing point 8, and is added in the reflecting plate as antenna above this double-sided copper-clad frequency PCB plate 01,
Then constitute the complete double frequency wall aerial of a width, reflecting plate and wiring board the distance between can be added according to the requirement of performance indications
To adjust.
This double frequency wall aerial apply WLAN (English entitled Wireless Local Area Networks,
It is abbreviated as WLAN) on the terminal unit that covers, making the terminal unit of WLAN work in mid frequency is 2.4GHz
(2.4GHz-2.5GHz) and two frequency ranges of 5.0GHz (5.15GHz-5.85GHz) are so that the terminal unit of WLAN can be sent out
Penetrate and receive the signal that mid frequency is 2.4GHz and two frequency ranges of 5.0GHz, and reach effect of multiple-input and multiple-output.It is full
The less antenna size of foot and the interference preventing electromagnetic wave, cover the requirement of multiple communications bands simultaneously.
In the present embodiment, the length of the 5th balun 5 is 14.7mm～14.9mm, the 5th balancedunbalanced
The width of transducer 5 is 2.4mm～2.6mm；The length of the 6th balun 6 is 13.4mm～13.6mm, the 6th
The width of balun 6 is 4.7mm～4.9mm；The length of the 7th balun 7 be 8.0mm～
8.2mm, the width of the 7th balun 7 is 4.4mm～4.6mm.The length of the tenth balun is
4.9mm～5.1mm.
Due to devising three baluns in the front plate of double-sided copper-clad frequency PCB plate 01, two-sided
One balun is devised on the backplate covering copper frequency PCB plate 01 so that the impedance of this double frequency wall aerial
Impedance with coaxial cable forms conjugate impedance match.
Fig. 4 is the scale diagrams of the front plate of double-sided copper-clad frequency PCB plate in the present embodiment；Fig. 5 is in the present embodiment
The scale diagrams of the backplate of double-sided copper-clad frequency PCB plate, are given below the optimum of each size, and L1 is 25mm, and W1 is
3mm, L2 are 11.7mm, and W2 is 2.5mm, and L3 is 20.95mm, and W3 is 13.45mm, and L4 is 2mm, and W4 is 1.5mm, and L5 is 1.5mm,
W5 is 13.5mm, and L6 is 1.5mm, and W6 is 10.5mm, and L7 is 14.8mm, and W7 is 2.5mm, and L8 is 13.5mm, and W8 is 31.35mm,
L0 is 8.1mm, and W9 is 4.8mm, and L10 is 15.2mm, and W10 is 4.5mm, and L11 is 1.5mm, and W11 is 1.5mm, and L12 is 11mm,
W12 is 11mm, and L13 is 5mm.It can be seen that, the width size of transmission line is different, in double-sided copper-clad frequency PCB plate 01 just
The width of the transmission line on the backplate of panel and double-sided copper-clad frequency PCB plate 01, is all different in different places, because
The characteristic impedance of this transmission line and input impedance also change therewith.
Fig. 6 is that in the present embodiment, double frequency wall aerial, in the measurement direction figure of 2450MHz frequency, is level when testing plane
During face, peak level is -28.75dB, and the width of 3dB is 74.44 degree；When test plane be vertical when, peak level be-
The width of 27.71dB, 3dB is 74.09 degree；Gain is 6.39dBi.
Fig. 7 is that in the present embodiment, double frequency wall aerial, in the measurement direction figure of 5500MHz frequency, is level when testing plane
During face, peak level is -27.47dB, and the width of 3dB is 57.44 degree；When test plane be vertical when, peak level be-
The width of 27.56dB, 3dB is 72.55 degree；Gain is 8.27dB.
Fig. 8 is the standing wave pattern of double frequency wall aerial test in the present embodiment.
Double frequency wall aerial of the present utility model via the multiple modification of Ansoft HFSS simulation calculation to sample,
Performance adjustment and perfect, after detection checking through instrument it is achieved that having the resonance of double frequency, frequency range inside common antenna
Can be 2400-2500/5150-5850MHz, standing-wave ratio is less than 1.7,2400-2500MHz band gain in 6dBi；5150-
5850MHz band gain is in 8dBi；The horizontal radiation pattern of this double frequency wall aerial and elevation radiation patytern are normal, such as scheme
6th, shown in Fig. 7 and Fig. 8, performance indications are substantially better than like product, and small volume, lighter in weight, it is easy to the installation of antenna；
Meet the demand simultaneously covering two communications bands in WLAN, improve the competitiveness of product in market it was demonstrated that this pair
Frequency wall aerial is truly feasible.
In a word, this utility model breaches the limitation of traditional wall hanging beam antenna single frequency band radiation, solves tradition
The difficult processing of dual-band antenna, the problem of difficult debugging, high cost and poor performance is it is achieved that the directed radiation of multiband.This practicality is new
Type is with low cost, making is simple, be easy to large-scale production；Only need one man operation during welding, just can settle at one go so that welding operation
Efficiency obtain significantly high, greatly increase production efficiency, also improve the quality of product simultaneously.This utility model has
Two-band covers, and compensate for the narrow deficiency of same type antenna frequency band, meets multiple communications bands coverings of telecom equipment vendor
Demand.Double frequency wall aerial small volume of the present utility model, lighter in weight, are so easy to the installation of antenna；Its loss is less,
Preferably, standing-wave ratio is relatively low, decreases debug time for impedance matching.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all this
Within the spirit of utility model and principle, any modification, equivalent substitution and improvement made etc., should be included in this utility model
Protection domain within.
Claims (9)
1. a kind of double frequency wall aerial is it is characterised in that include double-sided copper-clad frequency PCB plate, described double-sided copper-clad frequency PCB plate
It is provided with the radiating doublet of 2.4GHz frequency band resonance and the radiating doublet of 5.0GHz frequency band resonance, described 2.4GHz frequency band resonance
Radiating doublet includes one group of 2.4GHz half-wave doublet, and the radiating doublet of described 5.0GHz frequency band resonance includes two groups of 5.0GHz
Half-wave doublet, the top half of 2.4GHz half-wave doublet described in a group arranges described double-sided copper-clad frequency PCB plate
In front plate, and connected by the connecting line in described front plate, the lower half of 5.0GHz half-wave doublet described in each group
Divide and be arranged in the front plate of described double-sided copper-clad frequency PCB plate, all connected by the S bending transmission line in described front plate,
Front impedance matching line, distributing point and the heavy copper hole of front ground connection, institute are additionally provided with the front plate of described double-sided copper-clad frequency PCB plate
State front impedance matching line and include the 5th balun, the 6th balun and the 7th balancedunbalanced
Transducer, one end of described 5th balun is connected with the centre position of the connecting line in described front plate, institute
The other end stating the 5th balun passes through described 6th balun and described 7th balance injustice
One end of weighing apparatus transducer connects, and the other end of described 7th balun connects described distributing point, and described front connects
Ground sinks copper hole and is arranged on the lower section of described distributing point.
2. double frequency wall aerial according to claim 1 is it is characterised in that the S bending in two described front plate transmits
Line is symmetrically positioned in the interposition of the S bending transmission line on the both sides of described front impedance matching line, and each described front plate
Put on the connecting line being respectively positioned in described front plate.
3. double frequency wall aerial according to claim 2 is it is characterised in that 2.4GHz half-wave doublet described in a group
The latter half is arranged on the backplate of described double-sided copper-clad frequency PCB plate, and is connected by the connecting line on described backplate, often
The top half of 5.0GHz half-wave doublet described in one group is arranged on the backplate of described double-sided copper-clad frequency PCB plate, all
Connected by the S bending transmission line on described backplate.
4. double frequency wall aerial according to claim 3 is it is characterised in that the back side of described double-sided copper-clad frequency PCB plate
The heavy copper hole of back side impedance matching line, back-side ground connecting line and back-side ground is additionally provided with plate, described back-side ground connecting line
One end is connected with the centre position of the connecting line on described backplate, and the described back side is passed through in one end of described back-side ground connecting line
Impedance matching line reaches the other end, and the other end of described back-side ground connecting line copper hole heavy with described back-side ground is connected.
5. double frequency wall aerial according to claim 4 it is characterised in that described back side impedance matching line to include the tenth flat
Weighing apparatus imbalance converter.
6. the double frequency wall aerial according to claim 1 to 5 any one is it is characterised in that described double-sided copper-clad high frequency
The thickness of pcb board is 1mm, and length is 87mm, and width is 72mm, and described double-sided copper-clad frequency PCB plate adds up to above aluminium sheet,
The thickness of described aluminium sheet is 1mm, and length is 97mm, a width of 82mm, and described aluminium sheet is as the reflecting plate of described double frequency wall aerial.
7. double frequency wall aerial according to claim 4 is it is characterised in that the S bending on each described backplate passes
Defeated line is symmetrically positioned in the centre of the S bending transmission line on the both sides of described back-side ground connecting line, and each described backplate
Position is respectively positioned on the connecting line on described backplate.
8. double frequency wall aerial according to claim 1 is it is characterised in that the length of described 5th balun
Spend for 14.7mm～14.9mm, the width of described 5th balun is 2.4mm～2.6mm；Described 6th balance
The length of imbalance converter is 13.4mm～13.6mm, the width of described 6th balun be 4.7mm～
4.9mm；The length of described 7th balun is 8.0mm～8.2mm, described 7th balun
Width is 4.4mm～4.6mm.
9. double frequency wall aerial according to claim 5 is it is characterised in that the length of described tenth balun
Spend for 4.9mm～5.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620997927.1U CN205985336U (en) | 2016-08-30 | 2016-08-30 | Dual -frenquency hanging antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620997927.1U CN205985336U (en) | 2016-08-30 | 2016-08-30 | Dual -frenquency hanging antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205985336U true CN205985336U (en) | 2017-02-22 |
Family
ID=58042445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620997927.1U Expired - Fee Related CN205985336U (en) | 2016-08-30 | 2016-08-30 | Dual -frenquency hanging antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205985336U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252847A (en) * | 2016-08-30 | 2016-12-21 | 广州创锦通信技术有限公司 | Double frequency wall aerial |
| CN110718769A (en) * | 2018-07-13 | 2020-01-21 | 杭州海康威视数字技术股份有限公司 | Dual-band directional antenna |
-
2016
- 2016-08-30 CN CN201620997927.1U patent/CN205985336U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252847A (en) * | 2016-08-30 | 2016-12-21 | 广州创锦通信技术有限公司 | Double frequency wall aerial |
| CN106252847B (en) * | 2016-08-30 | 2023-09-19 | 广州普庆电子科技有限公司 | Dual-frequency wall-mounted antenna |
| CN110718769A (en) * | 2018-07-13 | 2020-01-21 | 杭州海康威视数字技术股份有限公司 | Dual-band directional antenna |
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