CN212648490U - Dual-band antenna and IOT equipment - Google Patents
Dual-band antenna and IOT equipment Download PDFInfo
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- CN212648490U CN212648490U CN202021510655.0U CN202021510655U CN212648490U CN 212648490 U CN212648490 U CN 212648490U CN 202021510655 U CN202021510655 U CN 202021510655U CN 212648490 U CN212648490 U CN 212648490U
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Abstract
The embodiment of the utility model relates to the technical field of antennas, a dual-frenquency antenna and IOT equipment is disclosed, wherein, the dual-frenquency antenna is through inciting somebody to action first antenna element designs for linear structure to be the inflection form, the second antenna element with the partial coincidence of first antenna element, thereby, can reduce first antenna element with the second antenna element is in laying the area on the base plate, reduce the area of required base plate, make the small and exquisite compactness of dual-frenquency antenna.
Description
Technical Field
The embodiment of the utility model provides a relate to antenna technical field, especially relate to a dual-frenquency antenna and IOT equipment.
Background
With the popularization of dual-band WiFi application, an IOT (Internet of Things) device that considers dual bands at the same time is popularized, and thus, the demand for a dual-band antenna is increasing. The dual-band is two frequency bands of 2.4GHz and 5GHz, the frequency band of 2.4GHz is 2400-. The dual-frequency antenna is an antenna supporting two frequency bands of 2.4GHz and 5 GHz.
At present, the dual-band antenna usually adopts a three-dimensional structural part to design 2.4GHz and 5GHz antennas respectively, and the three-dimensional structural part is large in size and can only be installed outside the IOT equipment, so that the miniaturization design of the dual-band IOT equipment is not facilitated.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a main technical problem who solves provides a dual-frenquency antenna and IOT equipment, and the dual-frenquency antenna size is little, and occupation space is little, is favorable to the miniaturization of IOT equipment.
In order to solve the above technical problem, in a first aspect, an embodiment of the present invention provides a dual-band antenna, including:
the antenna comprises a substrate, a first antenna oscillator, a second antenna oscillator and a feed part;
the first antenna element, the second antenna element and the feeding part are all arranged on the substrate, the feeding part is electrically connected with one of the first antenna element and the second antenna element, and the feeding part is used for being connected with an inner conductor of a radio frequency cable;
the first antenna oscillator is of a linear structure and is in a folded shape;
the second antenna element is partially overlapped with the first antenna element;
the total impedance of the first antenna element meets the requirement that the dual-frequency antenna resonates in a first frequency band, the total impedance of the second antenna element meets the requirement that the dual-frequency antenna resonates in a second frequency band, and the first frequency band and the second frequency band are two different frequency bands.
In some embodiments, the first antenna element includes a first L-shaped antenna element and a linear antenna element, a length of the linear antenna element is greater than a length of a vertical side of the first L-shaped antenna element, the first L-shaped antenna element and the linear antenna element enclose an asymmetric U-shaped structure, and at least a portion of the linear antenna element coincides with the second antenna element.
In some embodiments, the number of the first antenna elements is two, and the two first antenna elements are symmetrically distributed.
In some embodiments, the total length of the first antenna element is 30mm-37mm and the line width of the first antenna element is 1mm-2 mm.
In some embodiments, the second antenna element is at least one of rectangular, trapezoidal, triangular, or conical in shape.
In some embodiments, the second antenna element has a total length of 8mm-9mm and a width of 6mm-9 mm.
In some embodiments, the antenna further comprises a third antenna element and a grounding part, wherein the third antenna element and the grounding part are both arranged on the substrate, and the grounding part is used for being connected with an outer conductor of a radio frequency cable;
the third antenna element is positioned on a first side of the feeding portion, the first antenna element and the second antenna element are both positioned on a second side of the feeding portion, and the first side and the second side are opposite;
the third antenna element is of a linear structure and comprises two symmetrical second L-shaped antenna elements which are respectively and electrically connected with the grounding part.
In some embodiments, the substrate further comprises a first electrical connection line, a second electrical connection line and a third electrical connection line, wherein the first electrical connection line, the second electrical connection line and the third electrical connection line are arranged on the substrate at intervals, and the first electrical connection line is located in the middle of the second electrical connection line and the third electrical connection line;
the first electric connection line electrically connects the feeding portion with one of the first antenna element and the second antenna element, the second electric connection line electrically connects the grounding portion with one of the second L-shaped antenna elements, and the third electric connection line electrically connects the grounding portion with the other second L-shaped antenna element.
In some embodiments, the dual band antenna has an overall length of no more than 40mm, an overall width of no more than 10mm, and an overall thickness of 0.2mm to 1.0 mm.
In order to solve the above technical problem, in a second aspect, another embodiment of the present invention provides an IOT device, including the dual-band antenna according to the first aspect.
The utility model discloses beneficial effect of embodiment: be different from prior art's condition, the embodiment of the utility model provides a dual-frenquency antenna, through with first antenna element designs for linear structure to be the inflection form, the second antenna element with first antenna element partial coincidence, thereby, can reduce first antenna element with the second antenna element is in lay the area on the base plate, reduce the area of required base plate, make the small and exquisite compactness of dual-frenquency antenna.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic structural diagram of a dual-band antenna according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a dual-band antenna according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a dual-band antenna according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of a dual-band antenna according to another embodiment of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, the dual-band antenna 100 includes a substrate 10, a first antenna element 20, a second antenna element 30, and a feeding portion 40, where the first antenna element 20, the second antenna element 30, and the feeding portion 40 are all disposed on the substrate 10, the feeding portion 40 is electrically connected to one of the first antenna element 20 and the second antenna element 30, and the feeding portion 40 is used for being connected to an inner conductor of a radio frequency cable (not shown). Furthermore, the first antenna element 20 and the second antenna element 30 are partly overlapping, i.e. in electrical communication. Thus, both the first antenna element 20 and the second antenna element 30 may be fed via the feeding portion 40, i.e. electrically connected to a feeding device or a feeding network via the feeding portion 40.
The antenna-based working principle is that signals are received and propagated by an antenna element, and the impedance of the antenna element affects the resonant frequency (i.e. the frequency band in which the antenna can work), so the total impedance of the antenna element should satisfy the requirement that the antenna resonates in the working frequency band. For the dual-band antenna 100, two different frequency bands should be satisfied: first frequency channel and second frequency channel, take place the resonance and take place the resonance respectively at the second frequency channel in the first frequency channel promptly, thereby, the total impedance of first antenna element 20 should satisfy dual-frenquency antenna 100 takes place the resonance in the first frequency channel, the total impedance of second antenna element 30 should satisfy dual-frenquency antenna 100 takes place the resonance in the second frequency channel, during the feed, dual-frenquency antenna 100 can produce the resonance of first frequency channel and the resonance of second frequency channel. For example, the first frequency band is 2.4GHz-2.5GHz, the second frequency band is 5.15GHz-5.825GHz, and in order to satisfy two frequency bands of 2.4GHz-2.5GHz and 5.15GHz-5.825GHz, the total impedance of the first antenna element 20 satisfies that the dual-frequency antenna 100 resonates in the 2.4GHz-2.5GHz frequency band, and the total impedance of the second antenna element 30 satisfies that the dual-frequency antenna 100 resonates in the 5.15GHz-5.825GHz frequency band. Thus, when fed, dual-band antenna 100 may produce resonance in the 2.4GHz-2.5GHz band and resonance in the 5.15GHz-5.825GHz band. Since the impedance of the antenna element is determined by the factors such as the material, size, and form of the antenna element, in the process of implementing the embodiment, the factors should be considered comprehensively to finally make the total impedance of the first antenna element 20 satisfy the requirement that the dual-band antenna 100 resonates in the first frequency band, and make the total impedance of the second antenna element 30 satisfy the requirement that the dual-band antenna 100 resonates in the second frequency band.
In addition, the first antenna element 20 is of a linear structure and is folded back, and the second antenna element 30 is partially overlapped with the first antenna element 20, so that the layout area of the first antenna element 20 and the second antenna element 30 on the substrate 10 can be reduced, the area of the required substrate 10 is reduced, and the dual-band antenna 100 is small and compact.
In some embodiments, the first antenna element 20 includes a first L-shaped antenna element 21 and a linear antenna element 22, a length of the linear antenna element 22 is greater than a length of a vertical side of the first L-shaped antenna element 21, the first L-shaped antenna element 21 and the linear antenna element 22 enclose an asymmetric U-shaped structure, and at least a portion of the linear antenna element 22 coincides with the second antenna element 30. Specifically, the main frame of the first antenna element 20 is designed to be an asymmetric U-shaped structure, two sides of the U-shaped structure are not equal, and the longer side (the linear antenna element 22) coincides with the second antenna element 30. Therefore, the second antenna element 30 can be accommodated at the U-shaped opening of the asymmetric U-shaped structure, and the layout area thereof can be reduced. On the other hand, the bending of the first L-shaped antenna element 21 changes the arrangement direction of the first antenna element 20, and the overall arrangement length of the first antenna element 20 can be reduced. It is understood that, as shown in fig. 1, the overlapping portion of the linear antenna element 22 may be on the upper surface of the second antenna element 30, and in other embodiments, the overlapping portion of the linear antenna element 22 may also be on the lower surface of the second antenna element 30, where the upper-lower layer relationship between the first antenna element 20 and the second antenna element 30 is not limited, and only the overlapping communication is satisfied. It can be understood that, referring to fig. 2, in order to further reduce the overall layout length of the first antenna element 20, the vertical side of the first L-shaped antenna element 21 may be a curved shape with multiple bends 23.
In still other embodiments, the number of the first antenna elements 20 is two, and two first antenna elements 20 can increase the gain of the dual-band antenna 100 in the first frequency band, i.e. concentrate the radiated signals in a certain direction, so that the power of the signals is concentrated and radiated. In addition, the two first antenna elements 20 are symmetrically distributed, so that the overall design of the dual-band antenna 100 is relatively uniform, and the second antenna elements 30 and the feeding unit 40 are conveniently distributed on the substrate 10. In this embodiment, as shown in fig. 1, the rectilinear antenna element 22 of one of the first antenna elements 20 abuts against the rectilinear antenna element 22 of the other of the first antenna elements 20, so that the dual-band antenna 100 is more compact in width. It is understood that, in some embodiments, as shown in fig. 3, two first antenna elements 20 may also be spaced apart by a preset distance, which may be determined according to an actual arrangement situation.
When the first frequency band is 2.4GHz-2.5GHz, based on the form of the first antenna element 20, in order to make the total impedance meet the requirement that the dual-frequency antenna 100 resonates in the 2.4GHz-2.5GHz frequency band, in some embodiments, the total length of the first antenna element 20 is 30mm-37mm, and the line width of the first antenna element 20 is 1mm-2 mm. Wherein, the total length (30mm-37mm) of the first antenna element 20 is 1/4 of resonant wavelength in the frequency band of 2.4GHz-2.5GHz, which can make the reflection and receiving conversion efficiency of the first antenna element 20 highest. When the total length, shape, feeding position and material characteristic impedance of the first antenna element 20 are determined, the range of the line width can be inversely calculated through the required total impedance, and specifically, the range can be determined through software simulation such as HFSS. In this embodiment, the line width of the first antenna element 20 is 1mm to 2mm, so that the operating frequency band of the first antenna element 20 is 2.4GHz to 2.5GHz, that is, the first antenna element resonates at the frequency band of 2.4GHz to 2.5 GHz.
It should be noted that the linear antenna element 22 of the first antenna element 20 may resonate in the frequency band of 3.3GHz-3.4GHz, i.e. in this embodiment, the resonant frequency band of the first antenna element 20 includes 2.4GHz-2.5GHz and 3.3GHz-3.4 GHz. The dimensions of the first antenna element 20 and the corresponding resonant frequency band are the results of a large number of experimental simulations performed by the inventors of the present application.
It should be noted that, in the first antenna element 20, a sum of a length of the first L-shaped antenna element 21 and a length of the linear medium 22 is in a range of 30mm to 37mm, for example, when a total length of the first antenna element 20 is 35mm, an overall length of the first L-shaped antenna element 21 may be 15mm, a length of the linear antenna element 22 may be 20mm, and a length distribution between the first L-shaped antenna element 21 and the linear antenna element 22 may be specifically determined according to an overall aspect ratio of the dual-band antenna 100. It will be appreciated that the total length and width of the first antenna element 20 may also be other values, as long as the total impedance of the first antenna element 20 meets its operating frequency band.
With respect to the second antenna element 30 described above, in some embodiments, the second antenna element 30 is at least one of rectangular, trapezoidal, triangular, or tapered in shape. For example, the second antenna element 30 is rectangular or a combination of rectangular and triangular. As shown in fig. 1, the second antenna element 30 has a shape of a combination of a rectangle and a triangle, and the triangle can be used as the radiation structure of the first antenna element 20 and can adjust the total impedance thereof, so as to increase the bandwidth of the operating frequency band of the first antenna element 20, and make the stability of the dual-band antenna 100 better.
When the second frequency band is 5.15GHz-5.825GHz, based on the shape of the second antenna element 30, in order to make the total impedance of the second antenna element meet the requirement that the dual-band antenna 100 resonates in the frequency band of 5.15GHz-5.825GHz, in some embodiments, the total length of the second antenna element 30 is 8mm-9mm, and the width of the second antenna element 30 is 6mm-9 mm. Similarly, the total length of the second antenna element 30 is also determined according to the operating frequency band (5.15GHz-5.825GHz) of the second antenna element 30, and the width of the second antenna element 30 is also determined according to the total length, the shape, the feeding position, and the material characteristic impedance of the second antenna element 30, and the range of the width is inversely calculated through the required total impedance, and specifically may be determined through software simulation such as HFSS.
In order to reduce the layout area by making the overlapping portion of the linear antenna element 22 and the second antenna element 30 as large as possible, the longitudinal direction of the second antenna element 30 is parallel to the direction of the linear antenna element 22, and the linear antenna element 22 is positioned on the central axis of the second antenna element 30 in the longitudinal direction. Therefore, the number of overlapping portions of the linear antenna element 22 and the second antenna element 30 is large, the required layout area is small, and the dual-band antenna 100 is more compact.
In order to increase the gain and the omni-directionality of the dual-band antenna 100, please refer to fig. 4, in some embodiments, the dual-band antenna 100 further includes a third antenna element 50 and a ground portion 70, the third antenna element 50 and the ground portion 70 are both disposed on the substrate 10, and the ground portion 70 is used for connecting with an outer conductor of a radio frequency cable. The third antenna element 50 is located on the first side of the feeding portion 40, the first antenna element 20 and the second antenna element 30 are located on the second side of the feeding portion 40, and the first side and the second side are opposite to each other, so that a dipole dual-frequency antenna 100 is formed.
The third antenna element 50 is a linear structure, the third antenna element 50 includes two symmetrical second L-shaped antenna elements 50, and the two second L-shaped antenna elements 50 are electrically connected to the grounding portion 70, respectively. The bending of the second L-shaped antenna element 50 can reduce the overall length of the third antenna element 50. It will be appreciated that the second L-shaped to dielectric vertical edge may be a multi-bend (not shown) in order to further reduce the overall length of the third antenna element 50. In some embodiments, the length of the second L-shaped antenna element 50 is 16mm-20mm, and the line width of the second L-shaped antenna element is 1mm, that is, the second L-shaped antenna element within this length range can enable the dual-frequency antenna 100 to have higher gain and omni-directionality, and does not occupy too much layout area. It should be noted that the size of the second L-shaped antenna element 50 is a result of a large number of experimental simulations performed by the inventors of the present application.
In order to facilitate the welding of the rf cable to the feeding portion 40 and the grounding portion 70, in some embodiments, the ungrounded antenna elements (the first antenna element 20 and the second antenna element 30) are connected to the feeding portion 40 through a connection line, and the grounded antenna element (the third antenna element 50) is connected to the grounding portion 70 through another connection line, so that the feeding portion 40 and the grounding portion 70 are located at the edge of the dual-band antenna 100, thereby facilitating the welding of the first end of the rf cable and facilitating the connection of the second end of the rf cable to other input/output ports.
Specifically, referring to fig. 4, the dual-band antenna 100 further includes a first electrical connection line 61, a second electrical connection line 62 and a third electrical connection line 63, the first electrical connection line 61, the second electrical connection line 62 and the third electrical connection line 63 are all disposed on the substrate 10 at intervals, and the first electrical connection line 61 is located between the second electrical connection line 62 and the third electrical connection line 63. The first electrical connection line 61 electrically connects the feeding portion 40 and one of the first antenna element 20 and the second antenna element 30, and in fig. 4, the first electrical connection line 61 electrically connects the feeding portion 40 and the second antenna element 30. The second electrical connection line 62 electrically connects the ground portion 70 to one of the second L-shaped antenna elements 50, and the third electrical connection line 63 electrically connects the ground portion 70 to the other second L-shaped antenna element 50.
In this embodiment, the first electrical connection line 61 is disposed between the second electrical connection line 62 and the third electrical connection line 63, so that when the feeding portion 40 and the grounding portion 70 are located at the edge of the dual-band antenna 100, they can be connected to the corresponding antenna elements, respectively, so that the connection line and the two second L-shaped antenna elements 50 are symmetrically distributed, the arrangement is simple and orderly, and the structure is regular.
It is understood that the first antenna element 20, the second antenna element 30, and the third antenna element 50 may be all microstrip elements, and thus, the first antenna element 20, the second antenna element 30, and the third antenna element 50, as well as the first electrical connection line 61, the second electrical connection line 62, and the third electrical connection line 63 may all be printed on the surface of the substrate 10 by printing, so as to obtain the planar dual-band antenna 100. In other embodiments, the first antenna element 20, the second antenna element 30, and the third antenna element 50 may also be in other forms, such as a conductive tape or a conductive patch, and the like, and the antenna elements are not limited in particular, and only need to satisfy the above structure and frequency band. Compared with the traditional three-dimensional antenna, the dual-frequency antenna only needs to occupy a smaller space during installation, and is simple to install, for example, only needs to be pasted on the inner side wall of an IOT product. Of course, in order to ensure that the dual-band antenna 100 is not interfered, the distance between the surface of the substrate 10 on which the antenna elements are printed and the surrounding elements may be at least 10 mm.
The substrate 10 may be made of an insulating material such as FPC, FR1, FR2, FR3, FR4, FR5, BT, or PTFE, and any of the above materials has heat resistance, moisture resistance, and machinability, thereby facilitating the wide spread of the dual-band antenna 100 to IOT devices. Of course, the substrate 10 may also be made of other insulating materials, and is not limited herein.
The material of the first antenna element 20, the second antenna element 30 and the third antenna element 50 may be copper. For example, the conductive film can be printed by copper or processed by copper foil patch, and the copper has good conductivity and small signal attenuation degree. It will be appreciated that the first electrical connection line 61, the second electrical connection line 62 and the third electrical connection line 63 may also be printed using copper or formed using copper foil patches. Of course, the antenna element and the electrical connection line in the present application may also be made of other conductive materials, and are not limited herein.
It is understood that, before designing the dual-band antenna 100, the present application may set a total defined size, that is, the size of the substrate 10, for example, the total length of the dual-band antenna 100 is not more than 40mm, the total width is not more than 10mm, and the total thickness is 0.2mm to 1.0mm, for the dual-band antenna 100 in advance, so as to serve as a size design standard of the subsequent dual-band antenna 100. The dual band antenna 100 having the above size range can accommodate a small size IOT device or a multi-antenna IOT device.
In summary, the first antenna element 20 is designed to be a linear structure and to be folded back, and the second antenna element 30 and the first antenna element 20 are partially overlapped, so that the layout area of the first antenna element 20 and the second antenna element 30 on the substrate 10 can be reduced, the area of the substrate 10 required is reduced, and the dual-band antenna 100 is small and compact.
Another embodiment of the present invention further provides an IOT device (not shown), including the dual-band antenna 100 in any of the above embodiments, the dual-band antenna 100 may be installed in an external antenna mast of the IOT device, and used as an external antenna, or installed in the IOT device, and used as an internal antenna. Preferably, in order to ensure that the dual-band antenna 100 is not interfered, the distance between the surface of the substrate 10 provided with the antenna element and the surrounding elements is at least 10 mm. The dual-band antenna 100 in the IOT device has the same structure and function as the dual-band antenna 100, and is not described in detail herein.
It should be noted that the preferred embodiments of the present invention are described in the specification and the drawings, but the present invention can be realized in many different forms, and is not limited to the embodiments described in the specification, and these embodiments are not provided as additional limitations to the present invention, and are provided for the purpose of making the understanding of the disclosure of the present invention more thorough and complete. Moreover, the above technical features are combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope of the present invention; further, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A dual-band antenna (100), comprising:
a substrate (10), a first antenna element (20), a second antenna element (30), and a feed unit (40);
the first antenna element (20), the second antenna element (30) and the feeding part (40) are all arranged on the substrate (10), the feeding part (40) is electrically connected with one of the first antenna element (20) and the second antenna element (30), and the feeding part (40) is used for being connected with an inner conductor of a radio frequency cable;
the first antenna oscillator (20) is of a linear structure and is in a folded shape;
the second antenna element (30) is partially overlapped with the first antenna element (20);
the total impedance of the first antenna element (20) meets the requirement that the dual-frequency antenna (100) resonates in a first frequency band, the total impedance of the second antenna element (30) meets the requirement that the dual-frequency antenna (100) resonates in a second frequency band, and the first frequency band and the second frequency band are two different frequency bands.
2. The dual-band antenna (100) of claim 1, wherein the first antenna element (20) comprises a first L-shaped antenna element (21) and a straight antenna element (22), wherein the length of the straight antenna element (22) is greater than the length of the vertical side of the first L-shaped antenna element (21), and the first L-shaped antenna element (21) and the straight antenna element (22) enclose an asymmetric U-shaped structure, wherein at least a portion of the straight antenna element (22) coincides with the second antenna element (30).
3. The dual-band antenna (100) of claim 1, wherein the number of first antenna elements (20) is two, and the two first antenna elements (20) are symmetrically distributed.
4. The dual-band antenna (100) according to claim 1, wherein the total length of the first antenna element (20) is 30-37 mm and the line width of the first antenna element (20) is 1-2 mm.
5. The dual-band antenna (100) of claim 1, wherein the second antenna element (30) is at least one of rectangular, trapezoidal, triangular, or tapered in shape.
6. The dual-band antenna (100) of claim 1, wherein the second antenna element (30) has a total length of 8mm-9mm and a width of 6mm-9 mm.
7. The dual-band antenna (100) according to any one of claims 1-6, further comprising a third antenna element (50) and a ground (70), wherein the third antenna element (50) and the ground (70) are both disposed on the substrate (10), and the ground (70) is configured to be connected to an outer conductor of a radio frequency cable;
the third antenna element (50) is located on a first side of the feeding portion (40), the first antenna element (20) and the second antenna element (30) are both located on a second side of the feeding portion (40), and the first side and the second side are opposite;
the third antenna element (50) is of a linear structure, the third antenna element (50) comprises two symmetrical second L-shaped antenna elements, and the two second L-shaped antenna elements are respectively and electrically connected with the grounding part (70).
8. The dual-band antenna (100) of claim 7, further comprising a first electrical connection line (61), a second electrical connection line (62), and a third electrical connection line (63), wherein the first electrical connection line (61), the second electrical connection line (62), and the third electrical connection line (63) are all disposed on the substrate (10) at intervals, and the first electrical connection line (61) is located in the middle of the second electrical connection line (62) and the third electrical connection line (63);
the first electrical connection line (61) electrically connects the feeding portion (40) and one of the first antenna element (20) and the second antenna element (30), the second electrical connection line (62) electrically connects the ground portion (70) and one of the second L-shaped antenna elements, and the third electrical connection line (63) electrically connects the ground portion (70) and the other second L-shaped antenna element.
9. The dual-band antenna (100) of claim 1, wherein the dual-band antenna (100) has an overall length of no more than 40mm, an overall width of no more than 10mm, and an overall thickness of 0.2mm-1.0 mm.
10. An IOT device, characterized in that it comprises a dual band antenna (100) according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021510655.0U CN212648490U (en) | 2020-07-27 | 2020-07-27 | Dual-band antenna and IOT equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021510655.0U CN212648490U (en) | 2020-07-27 | 2020-07-27 | Dual-band antenna and IOT equipment |
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| CN212648490U true CN212648490U (en) | 2021-03-02 |
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| CN202021510655.0U Active CN212648490U (en) | 2020-07-27 | 2020-07-27 | Dual-band antenna and IOT equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114843783A (en) * | 2022-07-06 | 2022-08-02 | 展讯通信（上海）有限公司 | Antenna module, antenna device and terminal |
| WO2022199362A1 (en) * | 2021-03-26 | 2022-09-29 | 深圳市道通智能航空技术股份有限公司 | Antenna, wireless signal processing device and unmanned aerial vehicle |
-
2020
- 2020-07-27 CN CN202021510655.0U patent/CN212648490U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022199362A1 (en) * | 2021-03-26 | 2022-09-29 | 深圳市道通智能航空技术股份有限公司 | Antenna, wireless signal processing device and unmanned aerial vehicle |
| CN114843783A (en) * | 2022-07-06 | 2022-08-02 | 展讯通信（上海）有限公司 | Antenna module, antenna device and terminal |
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