CN212209746U - Multi-band PCB antenna and wireless communication equipment - Google Patents
Multi-band PCB antenna and wireless communication equipment Download PDFInfo
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- CN212209746U CN212209746U CN202020773900.0U CN202020773900U CN212209746U CN 212209746 U CN212209746 U CN 212209746U CN 202020773900 U CN202020773900 U CN 202020773900U CN 212209746 U CN212209746 U CN 212209746U
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Abstract
The utility model relates to a wireless communication technology field provides a multifrequency section PCB antenna and wireless communication equipment, above-mentioned multifrequency section PCB antenna includes the base plate, and all locate the ground connection paster on the base plate, the feeder, impedance matching paster and radiation paster, the ground connection paster, the feeder, impedance matching paster and radiation paster connect gradually, the storage tank has been seted up to the ground connection paster, the feeder holding forms coplanar waveguide structure in the storage tank, above-mentioned multifrequency section PCB antenna can compromise 5G frequency channel and 4G frequency channel simultaneously, effectively extend wireless communication equipment's application face, thereby satisfy people to wireless communication equipment's daily user demand.
Description
Technical Field
The utility model relates to a wireless communication technology field especially provides a multifrequency section PCB antenna and wireless communication equipment.
Background
With the rapid development of wireless communication technology, 5G networks are gradually popularized, and compared with 4G networks, 5G networks have the technical characteristics of higher speed, lower delay and larger capacity. In order to further accelerate the popularization and application of the 5G network, various manufacturers are increasing the research and development of the 5G antenna.
At present, the existing 5G antenna is a single frequency band antenna, which can only work in a 5G frequency band and cannot give consideration to a 4G frequency band, so that the application range of the wireless communication device is narrow, and the daily use requirements of people cannot be met.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a multifrequency section PCB antenna and wireless communication equipment aims at solving the technical problem that current multifrequency section PCB antenna can't compromise 5G frequency channel and 4G frequency channel simultaneously.
In order to achieve the above object, the utility model adopts the following technical scheme: a multi-band PCB antenna comprises a substrate, and a ground patch, a feeder line, an impedance matching patch and a radiation patch which are all arranged on the substrate, wherein the ground patch, the feeder line, the impedance matching patch and the radiation patch are sequentially connected, the ground patch is provided with a containing groove, and the feeder line is contained in the containing groove and then forms a coplanar waveguide structure together with the ground patch.
The embodiment of the utility model provides a multifrequency section PCB antenna has following beneficial effect at least: by arranging the impedance matching patch between the feeder line and the radiation patch, the impedance matching of the multi-band PCB antenna working in a high-frequency band can be adjusted, the high-frequency bandwidth of the multi-band PCB antenna is expanded, and the multi-band PCB antenna can be effectively ensured to work in a 5G frequency band; meanwhile, the feeder line is accommodated in the accommodating groove of the grounding patch, so that the feeder line and the grounding patch form a coplanar waveguide structure together, the low-frequency bandwidth of the multi-band PCB antenna is effectively expanded, and the multi-band PCB antenna can downwardly consider 4G frequency bands; therefore, the multi-band PCB antenna can simultaneously take 5G frequency band and 4G frequency band into consideration, effectively expands the application range of wireless communication equipment, and meets the daily use requirements of people on the wireless communication equipment.
In one embodiment, the radiation patch is provided with a slit.
In one embodiment, the gap is one of a U-shaped structure, an I-shaped structure, an H-shaped structure, and a pi-shaped structure.
In one embodiment, the ground patch is provided with an impedance matching slot.
In one embodiment, the impedance matching slot comprises a first slot segment, a second slot segment and a third slot segment for communicating the first slot segment with the second slot segment, and the width of the first slot segment and the width of the second slot segment both decrease in the direction of the third slot segment.
In one embodiment, the first groove segment has a first protrusion and a first recess; the second groove segment has a second protrusion and a second recess.
In one embodiment, the feed line is located at a center line of the ground patch, and the impedance matching slot is in an axisymmetric structure with the center line of the ground patch as a symmetry axis.
In one embodiment, the width of the feed line gradually decreases from one end of the feed line close to the ground patch to the other end.
In one embodiment, the radiating patch has a square structure.
In order to achieve the above object, the present invention also provides a wireless communication device, including the above multi-band PCB antenna.
Since the wireless communication device adopts all the embodiments of the multi-band PCB antenna, at least all the advantages of the embodiments are achieved, and no further description is given here.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a multiband PCB antenna provided in an embodiment of the present invention;
fig. 2 is a schematic view of standing wave simulation of the multi-band PCB antenna provided in the embodiment of the present invention;
fig. 3 is a schematic view of the radiation efficiency of the multi-band PCB antenna provided in the embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
10. the antenna comprises a substrate, 11, a feed port, 20, a ground patch, 21, a receiving groove, 22, an impedance matching groove, 221, a first groove section, 2211, a first convex part, 2212, a first notch, 222, a second groove section, 2221, a second convex part, 2222, a second notch, 223, a third groove section, 30, a feed line, 40, an impedance matching patch, 50, a radiation patch, 51 and a slot.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the term "connected" is to be construed broadly, e.g., as meaning a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1, a multiband PCB antenna includes a substrate 10, and a ground patch 20, a feeder 30, an impedance matching patch 40 and a radiation patch 50 all disposed on the substrate 10, wherein the ground patch 20, the feeder 30, the impedance matching patch 40 and the radiation patch 50 are sequentially connected, the ground patch 20 is provided with a receiving groove 21, and the feeder 30 and the ground patch 20 form a coplanar waveguide structure after being received in the receiving groove 21.
The multi-band PCB antenna can adjust the impedance matching of the multi-band PCB antenna working in a high frequency band by arranging the impedance matching patch 40 between the feeder 30 and the radiation patch 50, expand the high frequency bandwidth of the multi-band PCB antenna and effectively ensure that the multi-band PCB antenna can work in a 5G frequency band; meanwhile, the feeder line 30 is accommodated in the accommodating groove 21 of the ground patch 20, so that the feeder line 30 and the ground patch 20 form a coplanar waveguide structure together, the low-frequency bandwidth of the multi-band PCB antenna is effectively expanded, and the multi-band PCB antenna can downwardly consider 4G frequency bands; therefore, the multi-band PCB antenna can simultaneously consider the 5G frequency band and the 4G frequency band, effectively expands the application range of wireless communication equipment, and further meets the daily use requirements of people on the wireless communication equipment; in addition, by adopting the coplanar waveguide structure, the ground patch 20 and the feeder 30 can be combined more compactly, and the antenna can be effectively miniaturized.
In the present embodiment, please refer to fig. 1, the radiation patch 50 is provided with a slit 51. The multi-band PCB antenna can be matched with 50 ohm input impedance when working in a frequency band of 1710 MHz-2690 MHz by arranging the gap 51 on the radiation patch 50, so that the low-frequency bandwidth of the multi-band PCB antenna is further expanded, and the multi-band PCB antenna can be more effectively ensured to be compatible with a 4G frequency band.
Specifically, as shown in fig. 1, the slit 51 has one of a U-shaped structure, an I-shaped structure, an H-shaped structure, and a pi-shaped structure.
In the present embodiment, as shown in fig. 1, the ground patch 20 is provided with an impedance matching slot 22. The impedance matching groove 22 is formed in the grounding patch 20, so that the multi-band PCB antenna can be matched with 50-ohm input impedance when working in a frequency band of 1710MHz to 2690MHz, the low-frequency bandwidth of the multi-band PCB antenna is further expanded, and the multi-band PCB antenna can be more effectively ensured to be compatible with a 4G frequency band; meanwhile, the impedance matching slot 22 is formed in the ground patch 20, so that a resonant path of current on the ground patch 20 can be increased, the size of the ground patch 20 can be effectively reduced, and the antenna can be more effectively miniaturized.
Specifically, as shown in fig. 1, the impedance matching slot 22 includes a first slot section 221, a second slot section 222, and a third slot section 223, where the third slot section 223 is used to connect the first slot section 221 and the second slot section 222, and the width of the first slot section 221 and the width of the second slot section 222 both decrease toward the third slot section 223, so that the first slot section 221 and the second slot section 222 both form a multi-section gradual change structure.
More specifically, as shown in fig. 1, the first slot segment 221 has a first protrusion 2211 and a first recess 2212; the second slot segment 222 has a second convex portion 2221 and a second concave portion 2222, so that the first slot segment 221 and the second slot segment 222 form a multi-segment gradual change structure; wherein the first projection 2211 and the first recess 2212 are located on the edge of the first slot segment 221 away from the second slot segment 222, and the second projection 2221 and the second recess 2222 are located on the edge of the second slot segment 222 away from the first slot segment 221.
Of course, there are various shapes and structures of the impedance matching slot 22, and the shape and structure of the impedance matching slot 22 can be adjusted according to the actual impedance matching requirement of the multi-band PCB antenna, which is not limited herein.
Specifically, referring to fig. 1, in order to ensure that the current resonant paths on both sides of the ground patch 20 are the same, the feeder 30 is located at the center line of the ground patch 20, and the impedance matching slot 22 is in an axisymmetric structure with the center line of the ground patch 20 as a symmetry axis.
In this embodiment, please refer to fig. 1, the width of the feeding line 30 gradually decreases from one end of the feeding line 30 close to the ground patch 20 to the other end, so that the feeding line 30 forms a gradual change structure, thereby making the impedance transformation process of the multi-band PCB antenna more gradual, and effectively implementing the broadband matching of the multi-band PCB antenna.
Specifically, as shown in fig. 1, a feeding port 11 is disposed on the substrate 10, and the feeding line 30 is connected to the ground patch 20 through the feeding port.
In the present embodiment, the radiation patch 50 has a square structure, such as a square, a rectangle, etc., and is not limited in particular.
Of course, the material of the substrate 10 is various, such as teflon plate, ceramic plate, etc., and is not limited thereto.
Specifically, the thickness of the substrate 10 is 0.8mm, the length is 76mm, and the width is 15.5mm, so that the whole size of the multi-band PCB antenna is small, and the requirement of antenna miniaturization is effectively realized.
In fig. 2, a mark a indicates a standing wave change indicating line when the multi-band PCB antenna operates in a 1540-2720 MHz frequency band, and a mark b indicates a standing wave change indicating line when the multi-band PCB antenna operates in a 3380-3890 MHz frequency band and a 4340-5000 MHz frequency band.
In fig. 3, a mark c indicates a change indicating line of radiation efficiency when the multi-band PCB antenna operates in a frequency band of 1710MHz to 2690MHz, a mark d indicates a change indicating line of radiation efficiency when the multi-band PCB antenna operates in a frequency band of 3400MHz to 3600MHz, and a mark e indicates a change indicating line of radiation efficiency when the multi-band PCB antenna operates in a frequency band of 4800MHz to 4900 MHz.
As can be seen from the graphs in FIGS. 2 and 3, when the multi-band PCB antenna works in 1540-2720 MHz frequency band, 3380-3890 MHz frequency band and 4340-5000 MHz frequency band, the reflection coefficients are all less than-10 dB, and the multi-band PCB antenna effectively covers the high frequency band and the 5G frequency band of the 4G network; the radiation efficiency of the multi-band PCB antenna working in a frequency band of 1710 MHz-2690 MHz is more than 91%, the radiation efficiency of the multi-band PCB antenna working in a frequency band of 3400 MHz-3600 MHz is more than 86%, and the radiation efficiency of the multi-band PCB antenna working in a frequency band of 4800 MHz-4900 MHz is more than 85%; therefore, the multi-band PCB antenna can effectively give consideration to both the 4G frequency band and the 5G frequency band.
A wireless communication device comprises the multi-band PCB antenna.
Since the wireless communication device adopts all the embodiments of the multi-band PCB antenna, at least all the advantages of the embodiments are achieved, and no further description is given here.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A multi-band PCB antenna, characterized by: the antenna comprises a substrate, and a grounding patch, a feeder line, an impedance matching patch and a radiation patch which are all arranged on the substrate, wherein the grounding patch, the feeder line, the impedance matching patch and the radiation patch are sequentially connected, the grounding patch is provided with a containing groove, and the feeder line is contained in the containing groove and then forms a coplanar waveguide structure together with the grounding patch.
2. The multi-band PCB antenna of claim 1, wherein: the radiation patch is provided with a gap.
3. The multi-band PCB antenna of claim 2, wherein: the gap is one of a U-shaped structure, an I-shaped structure, an H-shaped structure and a pi-shaped structure.
4. The multi-band PCB antenna of claim 1, wherein: the ground patch is provided with an impedance matching groove.
5. The multi-band PCB antenna of claim 4, wherein: the impedance matching groove comprises a first groove section, a second groove section and a third groove section which is used for communicating the first groove section with the second groove section, and the width of the first groove section and the width of the second groove section both tend to decrease towards the direction of the third groove section.
6. The multi-band PCB antenna of claim 5, wherein: the first groove section has a first protrusion and a first recess; the second groove segment has a second protrusion and a second recess.
7. The multi-band PCB antenna of claim 4, wherein: the feeder line is located at the center line position of the grounding patch, and the impedance matching slot is in an axisymmetric structure by taking the center line of the grounding patch as a symmetry axis.
8. The multi-band PCB antenna of any of claims 1-7, wherein: the width of the feeder line is gradually reduced from one end of the feeder line close to the grounding patch to the other end.
9. The multi-band PCB antenna of any of claims 1-7, wherein: the radiation patch is of a square structure.
10. A wireless communication device, characterized by: including the multi-band PCB antenna of any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020773900.0U CN212209746U (en) | 2020-05-12 | 2020-05-12 | Multi-band PCB antenna and wireless communication equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020773900.0U CN212209746U (en) | 2020-05-12 | 2020-05-12 | Multi-band PCB antenna and wireless communication equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113594678A (en) * | 2021-07-30 | 2021-11-02 | 维沃移动通信有限公司 | Antenna device and electronic apparatus |
| CN113823905A (en) * | 2021-08-26 | 2021-12-21 | 四川数字交通科技股份有限公司 | Electronic tag for Internet of things |
| CN115084838A (en) * | 2021-03-12 | 2022-09-20 | 广东侨华科技有限公司 | Multi-band antenna and wireless communication equipment |
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2020
- 2020-05-12 CN CN202020773900.0U patent/CN212209746U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115084838A (en) * | 2021-03-12 | 2022-09-20 | 广东侨华科技有限公司 | Multi-band antenna and wireless communication equipment |
| CN113594678A (en) * | 2021-07-30 | 2021-11-02 | 维沃移动通信有限公司 | Antenna device and electronic apparatus |
| CN113823905A (en) * | 2021-08-26 | 2021-12-21 | 四川数字交通科技股份有限公司 | Electronic tag for Internet of things |
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