CN209730168U - A kind of dual-band antenna and IOT equipment - Google Patents
A kind of dual-band antenna and IOT equipment Download PDFInfo
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- CN209730168U CN209730168U CN201920768005.7U CN201920768005U CN209730168U CN 209730168 U CN209730168 U CN 209730168U CN 201920768005 U CN201920768005 U CN 201920768005U CN 209730168 U CN209730168 U CN 209730168U
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- 239000000758 substrate Substances 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 239000010410 layer Substances 0.000 description 23
- 238000000034 method Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000002355 dual-layer Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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Abstract
The utility model discloses a kind of dual-band antenna and IOT equipment, comprising: the Upper conductive medium on substrate upper layer is printed on, for accessing the pre- transmitting signal of dual-band antenna；It is printed on the underlying conductive medium of substrate lower layer；Through substrate, for the through-hole using self-conductive medium connection Upper conductive medium and underlying conductive medium；Wherein, the total impedance of Upper conductive medium and underlying conductive medium design is satisfied with dual-band antenna resonance occurs in two frequency ranges of 2.4GHz and 5.0GHz.As it can be seen that the application uses printing circuit board antenna, antenna occupied space is smaller, to be conducive to the Miniaturization Design of two-band IOT equipment.Moreover, the application when designing the impedance of antenna, guarantees that in two frequency ranges of 2.4GHz and 5.0GHz resonance occurs for antenna, i.e. an antenna can solve the covering of two frequency ranges, to reduce the quantity of antenna, the cost of antenna is reduced, and then be conducive to the popularization of two-band IOT equipment.
Description
Technical field
The utility model relates to Internet of Things antenna production fields, more particularly to a kind of dual-band antenna and IOT equipment.
Background technique
With popularizing for two-band Wi-Fi application, IOT (Internet of Things, the Internet of Things of two-band are combined
Net) equipment promoted.Currently, two-band refers to that two frequency ranges of 2.4GHz and 5.0GHz, the frequency range of 2.4GHz are 2400-
The frequency range of 2483MHz, 5GHz are 5100-5800MHz.In the prior art, the common production method of dual-band antenna in IOT equipment
Are as follows: 2.4GHz antenna and 5.0GHz antenna are separately designed using stereochemical structure part, still, stereochemical structure part occupied space is larger,
It is unfavorable for the Miniaturization Design of two-band IOT equipment.
Therefore, how to provide a kind of scheme of solution above-mentioned technical problem is that those skilled in the art needs to solve at present
The problem of.
Utility model content
The purpose of the utility model is to provide a kind of dual-band antenna and IOT equipment, and antenna occupied space is smaller, thus favorably
In the Miniaturization Design of two-band IOT equipment；And an antenna can solve the covering of two frequency ranges, to reduce the number of antenna
Amount, reduces the cost of antenna, and then be conducive to the popularization of two-band IOT equipment.
In order to solve the above technical problems, the utility model provides a kind of dual-band antenna, comprising:
It is printed on the Upper conductive medium on substrate upper layer, for accessing the pre- transmitting signal of dual-band antenna；
It is printed on the underlying conductive medium of the substrate lower layer；
Through the substrate, for connecting the Upper conductive medium and the underlying conductive using self-conductive medium
The through-hole of medium；Wherein, the double frequency is satisfied in the total impedance of the Upper conductive medium and underlying conductive medium design
In two frequency ranges of 2.4GHz and 5.0GHz resonance occurs for antenna.
Preferably, the Upper conductive medium includes:
It is printed on the completely open rectangular conductive medium of the substrate upper layer, a line；
It is vertical outward to be printed on the substrate upper layer, one end and the center on the Article 2 side of the rectangular conductive medium
It is connected, the first straight line shape conducting medium of the other end access pre- transmitting signal of dual-band antenna；Wherein, the Article 2 side is described
One adjacent side of a line.
Preferably, the underlying conductive medium includes:
It is printed on the L shape conducting medium of the substrate lower layer；Wherein, the vertical edge of the L shape conducting medium is in projecting direction
Be inserted in the Article 2 in the Article 3 of the rectangular conductive medium between, the Article 3 side be a line
Another adjacent side；
And the through-hole is specifically used for connecting the horizontal edge end of the L shape conducting medium and described using self-conductive medium
The first end on Article 3 side；Wherein, the first end on the Article 3 side is close to the end of a line.
Preferably, the Article 2 while and be symmetrically distributed in the L shape conducting medium in projecting direction when the Article 3
Vertical edge two sides.
Preferably, the rectangular conductive medium, the first straight line shape conducting medium and the L shape conducting medium be with
Conducting medium made of copper product.
Preferably, the substrate is with substrate made of FR4 material.
Preferably, the overall dimension of the dual-band antenna designs within 4.5mm*12.5mm*1mm.
Preferably, the substrate with a thickness of 0.8mm.
Preferably, the dual-band antenna further include:
It is vertically connected with the vertical edge of the L shape conducting medium to constitute the second straight line shape conduction of inverted-F conducting medium Jie
Matter, for adjusting the bandwidth of the dual-band antenna.
In order to solve the above technical problems, the utility model additionally provides a kind of IOT equipment, including any of the above-described kind of double frequency day
Line.
The utility model provides a kind of dual-band antenna, comprising: the Upper conductive medium on substrate upper layer is printed on, for connecing
Enter the pre- transmitting signal of dual-band antenna；It is printed on the underlying conductive medium of substrate lower layer；Through substrate, for utilizing self-conductive
The through-hole of medium connection Upper conductive medium and underlying conductive medium；Wherein, Upper conductive medium and underlying conductive medium is total
Impedance design is satisfied with dual-band antenna and resonance occurs in two frequency ranges of 2.4GHz and 5.0GHz.
As it can be seen that the application uses printing circuit board antenna (antenna printed is planar antenna), compared to existing
Some stereochemical structure parts, planar antenna occupied space is smaller, to be conducive to the Miniaturization Design of two-band IOT equipment.And
And the application guarantees that in two frequency ranges of 2.4GHz and 5.0GHz resonance, i.e., one occur for antenna when designing the impedance of antenna
A antenna can solve the covering (two frequency ranges of 2.4GHz and 5GHz share an antenna) of two frequency ranges, to reduce antenna
Quantity, reduces the cost of antenna, and then is conducive to the popularization of two-band IOT equipment.
The utility model additionally provides a kind of IOT equipment, with above-mentioned dual-band antenna beneficial effect having the same.
Detailed description of the invention
It, below will be to the prior art and embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram of dual-band antenna provided by the embodiment of the utility model；
Fig. 2 is a kind of laminated design drawing of dual-band antenna provided by the embodiment of the utility model；
Fig. 3 is a kind of resonance curve figure of dual-band antenna provided by the embodiment of the utility model；
Fig. 4 is a kind of antenna efficiency figure of dual-band antenna provided by the embodiment of the utility model；
Fig. 5 is a kind of direction parameter figure of dual-band antenna provided by the embodiment of the utility model.
Specific embodiment
The core of the utility model is to provide a kind of dual-band antenna and IOT equipment, and antenna occupied space is smaller, thus favorably
In the Miniaturization Design of two-band IOT equipment；And an antenna can solve the covering of two frequency ranges, to reduce the number of antenna
Amount, reduces the cost of antenna, and then be conducive to the popularization of two-band IOT equipment.
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Fig. 1 is please referred to, Fig. 1 is a kind of structural schematic diagram of dual-band antenna provided by the embodiment of the utility model.
The dual-band antenna includes:
It is printed on the Upper conductive medium 1 on substrate upper layer, for accessing the pre- transmitting signal of dual-band antenna；
It is printed on the underlying conductive medium 2 of substrate lower layer；
Through substrate, for utilizing the logical of self-conductive medium connection Upper conductive medium 1 and underlying conductive medium 2
Hole；Wherein, the design of the total impedance of Upper conductive medium 1 and underlying conductive medium 2 be satisfied with dual-band antenna in 2.4GHz and
Resonance occurs in two frequency ranges of 5.0GHz.
Specifically, it is contemplated that the antenna occupied space of stereochemical structure part production is larger, so the application is printed using circuit board
Antenna processed, to obtain the lesser planar antenna of occupied space.Since the working principle of the antenna of printing circuit board is to utilize to lead
Dielectric receives and transmitting signal, and the impedance influences of the conducting medium resonance frequency of antenna (the i.e. workable frequency of antenna institute
Section), so the application when the impedance of conducting medium, should meet antenna and resonance occurs in working frequency range in designing antenna.
It is being set based on this if the application wants to design 2.4GHz antenna and 5.0GHz antenna (the two composition dual-band antenna)
When counting the impedance of conducting medium in 2.4GHz antenna, 2.4GHz antenna should be met, resonance occurs in 2.4GHz frequency range；It is designing
In 5.0GHz antenna when the impedance of conducting medium, 5.0GHz antenna should be met, resonance occurs in 5.0GHz frequency range.Due to conduction
The impedance of medium is determined by factors such as the material of conducting medium, size and forms, so resistance of the application in design conducting medium
When anti-, these factors should be comprehensively considered, occurred with finally making the impedance of conducting medium be satisfied with antenna in itself working frequency range
Resonance.
In addition, it is contemplated that circuit board generallys use single side printing mode (it is understood that cater to the single side of circuit board
Printing, single layer designs need to be used when design dual-band antenna), this will lead to dual-band antenna occupancy board area it is larger, so
The application uses double layer design when designing dual-band antenna, and using double-sided printing mode in printing circuit board dual-layer atenna, from
And reduce the area that dual-band antenna occupies circuit board.Specifically, the application uses double layer design mode to design double frequency day in advance
The structure of line, i.e. the design structure of the dual-band antenna of the application includes top-level design structure and underlying design structure, then double
During the printing of frequency antenna, the application prints Upper conductive medium 1 according to top-level design structure on substrate upper layer, in substrate lower layer
Underlying conductive medium 2 is printed according to underlying design structure, also, in order to connect Upper conductive medium 1 and underlying conductive medium 2
Get up, running through on substrate has the through-hole of connection Upper conductive medium 1 and underlying conductive medium 2 (specifically because having at substrate through holes
Conducting medium enables Upper conductive medium 1 and underlying conductive medium 2 to connect).
At the same time, it is contemplated that separately design 2.4GHz antenna and 5.0GHz antenna will lead to the antenna amount of dual-band antenna
It is more, to increase antenna cost, so when designing dual-band antenna, 2.4GHz antenna and 5.0GHz antenna are merged by the application
Design, i.e., an antenna can solve the covering of two frequency ranges of 2.4GHz and 5.0GHz.Specifically, layer is conductive in design by the application
When the total impedance of medium 1 and underlying conductive medium 2, the antenna of the two composition should be satisfied in two frequency ranges of 2.4GHz and 5.0GHz
Resonance inside occurs, i.e. realization two frequency ranges of 2.4GHz and 5GHz share an antenna, to reduce the quantity of antenna, reduce
The cost of antenna.
The utility model provides a kind of dual-band antenna, comprising: the Upper conductive medium on substrate upper layer is printed on, for connecing
Enter the pre- transmitting signal of dual-band antenna；It is printed on the underlying conductive medium of substrate lower layer；Through substrate, for utilizing self-conductive
The through-hole of medium connection Upper conductive medium and underlying conductive medium；Wherein, Upper conductive medium and underlying conductive medium is total
Impedance design is satisfied with dual-band antenna and resonance occurs in two frequency ranges of 2.4GHz and 5.0GHz.
As it can be seen that the application uses printing circuit board antenna (antenna printed is planar antenna), compared to existing
Some stereochemical structure parts, planar antenna occupied space is smaller, to be conducive to the Miniaturization Design of two-band IOT equipment.And
And the application guarantees that in two frequency ranges of 2.4GHz and 5.0GHz resonance, i.e., one occur for antenna when designing the impedance of antenna
A antenna can solve the covering (two frequency ranges of 2.4GHz and 5GHz share an antenna) of two frequency ranges, to reduce antenna
Quantity, reduces the cost of antenna, and then is conducive to the popularization of two-band IOT equipment.
On the basis of the above embodiments:
As one kind, optionally embodiment, Upper conductive medium 1 include:
It is printed on the completely open rectangular conductive medium of substrate upper layer, a line；
The center for being printed on the Article 2 side on substrate upper layer, one end and rectangular conductive medium is vertically connected, separately outward
The first straight line shape conducting medium of one end access pre- transmitting signal of dual-band antenna；Wherein, one of Article 2 Bian Wei a line
Adjacent side.
Specifically, the application is rectangular by the design of the main frame of Upper conductive medium 1, and wherein the one of this rectangular conductive medium
Article side (referred to as a line) is completely open, i.e., the Upper conductive medium 1 of the application includes that the rectangular conductive on only three sides is situated between
Matter (is similar to U-shaped).The application is also in the Article 2 side of a rectangular conductive medium (neighbour of a line of rectangular conductive medium
While) the external first straight line shape conducting medium in center it is (when the specifically Article 2 of rectangular conductive medium straight with first
One end of linear conducting medium vertically connects), and the other end on first straight line shape conducting medium far from rectangular conductive medium is made
For the feed-in position (P point in Fig. 1) of the pre- transmitting signal of dual-band antenna, i.e. the application is received double by first straight line shape conducting medium
The pre- transmitting signal of frequency antenna.
As one kind, optionally embodiment, underlying conductive medium 2 include:
It is printed on the L shape conducting medium of substrate lower layer；Wherein, the vertical edge of L shape conducting medium is inserted in projecting direction
Two in the Article 3 of rectangular conductive medium between, another adjacent side of Article 3 Bian Wei a line；
And through-hole be specifically used for using self-conductive medium connection L shape conducting medium horizontal edge end and Article 3 side the
One end；Wherein, the first end on Article 3 side is close to the end of a line.
Specifically, the application is at L-shaped by the main frame design of underlying conductive medium 2, and L shape conducting medium includes two mutual
Vertical side (horizontal edge and vertical edge), the specifically vertical edge of L shape conducting medium are inserted in the of rectangular conductive medium in projecting direction
Two articles while and its (another adjacent side of a line of rectangular conductive medium, the i.e. Article 2 of rectangular conductive medium when Article 3
The opposite side on side) between, the first end (rectangular conductive on the Article 3 side of the horizontal edge end and rectangular conductive medium of L shape conducting medium
Close to the end of a line on the Article 3 side of medium) it is overlapped on projecting direction, and the position of through-hole is upper on substrate
The setting of the projection overlapping positions of layer conducting medium 1 and underlying conductive medium 2, i.e. through-hole are led using self-conductive medium connection L shape
The first end of dielectric horizontal edge end and the Article 3 side of rectangular conductive medium, to realize Upper conductive medium 1 and lower layer
The connection of conducting medium 2.
As a kind of optionally embodiment, Article 2 while and when Article 3 be symmetrically distributed in L shape conduction in projecting direction and be situated between
The two sides of the vertical edge of matter.
Further, the vertical edge of the L shape conducting medium of the application is inserted in the second of rectangular conductive medium in projecting direction
While and its middle namely rectangular conductive medium when Article 3 Article 2 while and its closed on projecting direction when Article 3
It is symmetrical in the vertical edge of L shape conducting medium, to keep the whole design of dual-band antenna relatively uniform, and then convenient on substrate
Remaining element arranged where dual-band antenna in IOT equipment.
As one kind, optionally embodiment, rectangular conductive medium, first straight line shape conducting medium and L shape conducting medium are
With conducting medium made of copper product.
Conducting medium that specifically, the dual-band antenna of the application includes (rectangular conductive medium mentioned by above-described embodiment,
First straight line shape conducting medium and L shape conducting medium) it copper product can be used is made, the electric conductivity of copper is preferable, and signal is decayed journey
Degree is smaller, and cost is relatively low.
Certainly, the conducting medium that the dual-band antenna of the application includes can also select other conductive materials to be made, the application
It is not particularly limited herein.
As a kind of optionally embodiment, substrate is with substrate made of FR4 material.
Specifically, the substrate of the application can be used FR4 material and be made, and FR4 material cost is lower, and have preferable insulation
Property, heat resistance, moisture resistivity and machining property, to be conducive to the popularization of IOT equipment.
Certainly, the substrate of the application can also select other materials to be made, and the application is not particularly limited herein.
As a kind of optionally embodiment, the overall dimension of dual-band antenna is designed within 4.5mm*12.5mm*1mm.
Further, before designing dual-band antenna a total restriction size can be arranged for dual-band antenna in advance in the application,
Such as 4.5mm*12.5mm*1mm, i.e. the total length of dual-band antenna is limited within 4.5mm, overall width is limited within 12.5mm,
Total height is limited within 1mm, using the dimensioning criteria as subsequent dual-band antenna.
More specifically, the application can make the total length of dual-band antenna be 4.0mm, overall width 12.25mm, this size
Apply the advantage in IOT equipment with miniaturization.
As a kind of optionally embodiment, substrate with a thickness of 0.8mm.
Specifically, since dual-band antenna is printed on the upper and lower level of substrate, so the total height of dual-band antenna is the thickness of substrate
The thickness design of substrate can be 0.8mm by degree, the application, as shown in Figure 2.
As a kind of optionally embodiment, dual-band antenna further include:
It is vertically connected with the vertical edge of L shape conducting medium to constitute the second straight line shape conducting medium of inverted-F conducting medium, is used
In the bandwidth of adjustment dual-band antenna.
Further, it is contemplated that the total impedance of conducting medium may occur mutually to strain because of some factors in dual-band antenna
Change, to influence the bandwidth of dual-band antenna, that is, influence the resonance frequency of dual-band antenna, so the application is situated between in underlying conductive
The bandwidth that one section of microstrip line adjustment dual-band antenna is introduced in matter 2, (is mainly used for 5.0GHz to adjust the resonance frequency of dual-band antenna
The tuning process of frequency range), a second straight line shape conduction is vertically specifically inscribed in the vertical edge of the L shape conducting medium of the application and is situated between
Matter (more preferably, second straight line shape conducting medium and L shape conducting medium identical material), second straight line shape conducting medium is led with L shape
Dielectric constitutes inverted-F conducting medium.
Based on this, the dual-band antenna (shown in Fig. 1) that the application can be reversed F-typed to upper layer rectangle, lower layer carries out resonance test, surveys
Test result can satisfy two-band as shown in figure 3, in two frequency ranges of 2.4GHz and 5.0GHz resonance occurs for this dual-band antenna
The demand of application.The application can also carry out efficiency test to this dual-band antenna, and test results are shown in figure 4, this dual-band antenna exists
The antenna efficiency of 2.4GHz frequency range can reach 20%, can reach 70% in the antenna efficiency of 5.0GHz frequency range, performance is more excellent.This Shen
Please can also directionality test be carried out to this dual-band antenna, test results are shown in figure 5, passes through the direction parameter of this dual-band antenna
The gain of this dual-band antenna can be extrapolated.
The utility model additionally provides a kind of IOT equipment, including any of the above-described kind of dual-band antenna.
The introduction of IOT equipment provided by the utility model please refers to the embodiment of above-mentioned dual-band antenna, and the utility model exists
This is repeated no more.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (10)
1. a kind of dual-band antenna characterized by comprising
It is printed on the Upper conductive medium on substrate upper layer, for accessing the pre- transmitting signal of dual-band antenna；
It is printed on the underlying conductive medium of the substrate lower layer；
Through the substrate, for connecting the Upper conductive medium and the underlying conductive medium using self-conductive medium
Through-hole；Wherein, the dual-band antenna is satisfied in the total impedance of the Upper conductive medium and underlying conductive medium design
Resonance occurs in two frequency ranges of 2.4GHz and 5.0GHz.
2. dual-band antenna as described in claim 1, which is characterized in that the Upper conductive medium includes:
It is printed on the completely open rectangular conductive medium of the substrate upper layer, a line；
It is printed on the substrate upper layer, one end and the center on the Article 2 side of the rectangular conductive medium vertical phase outward
Even, the first straight line shape conducting medium of the other end access pre- transmitting signal of dual-band antenna；Wherein, the Article 2 side is described the
One adjacent side of a line.
3. dual-band antenna as claimed in claim 2, which is characterized in that the underlying conductive medium includes:
It is printed on the L shape conducting medium of the substrate lower layer；Wherein, the vertical edge of the L shape conducting medium is plugged in projecting direction
Between while Article 3 of the Article 2 in the rectangular conductive medium, the Article 3 side is the another of a line
One adjacent side；
And the through-hole is specifically used for connecting the horizontal edge end of the L shape conducting medium and the third using self-conductive medium
The first end on side；Wherein, the first end on the Article 3 side is close to the end of a line.
4. dual-band antenna as claimed in claim 3, which is characterized in that the Article 2 while and when the Article 3 in projection side
To the two sides for the vertical edge for being symmetrically distributed in the L shape conducting medium.
5. dual-band antenna as claimed in claim 3, which is characterized in that the rectangular conductive medium, the first straight line shape are led
Dielectric and the L shape conducting medium are with conducting medium made of copper product.
6. dual-band antenna as claimed in claim 5, which is characterized in that the substrate is with substrate made of FR4 material.
7. dual-band antenna as claimed in claim 6, which is characterized in that the overall dimension of the dual-band antenna is designed in 4.5mm*
Within 12.5mm*1mm.
8. dual-band antenna as claimed in claim 7, which is characterized in that the substrate with a thickness of 0.8mm.
9. such as the described in any item dual-band antennas of claim 3-8, which is characterized in that the dual-band antenna further include:
It is vertically connected with the vertical edge of the L shape conducting medium to constitute the second straight line shape conducting medium of inverted-F conducting medium, is used
In the bandwidth for adjusting the dual-band antenna.
10. a kind of IOT equipment, which is characterized in that including such as described in any item dual-band antennas of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920768005.7U CN209730168U (en) | 2019-05-24 | 2019-05-24 | A kind of dual-band antenna and IOT equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920768005.7U CN209730168U (en) | 2019-05-24 | 2019-05-24 | A kind of dual-band antenna and IOT equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209730168U true CN209730168U (en) | 2019-12-03 |
Family
ID=68673510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920768005.7U Active CN209730168U (en) | 2019-05-24 | 2019-05-24 | A kind of dual-band antenna and IOT equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209730168U (en) |
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2019
- 2019-05-24 CN CN201920768005.7U patent/CN209730168U/en active Active
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