CN210897639U - Dipole array antenna - Google Patents
Dipole array antenna Download PDFInfo
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- CN210897639U CN210897639U CN201921806214.2U CN201921806214U CN210897639U CN 210897639 U CN210897639 U CN 210897639U CN 201921806214 U CN201921806214 U CN 201921806214U CN 210897639 U CN210897639 U CN 210897639U
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Abstract
The utility model discloses a dipole array antenna, the antenna includes base plate, N binary dipole array element and the parallel double-line of microstrip, the first transmission conductor and the second transmission conductor of the parallel double-line of microstrip print respectively in the first face and the second face of a base plate dielectric layer to along the axis position distribution of base plate, the first feed point of locating the first face is connected to the first end of first transmission conductor, the second feed point of locating the second face is connected to the first end of second transmission conductor; the N binary dipole array elements are arranged along the micro-strip in parallel double lines to form an array; each binary dipole array element comprises a first branch unit printed on the first surface and a second branch unit printed on the second surface; the first branch unit and the second branch unit respectively comprise a first branch, a second branch and a third branch; the first end of the second branch is connected with the first end of the first branch, and the first end of the third branch is connected with the second end of the first branch. The utility model provides a dipole array antenna has the high-gain characteristic.
Description
Technical Field
The utility model relates to an antenna design technical field especially relates to a dipole array antenna.
Background
An antenna is one of important elements in a wireless communication product, and has a significant influence on a communication range, a communication quality, and the like of the wireless communication product. Generally, the higher the gain, the longer the propagation distance of the electromagnetic wave transmitted and received by the antenna, and the stronger the signal transmission and reception capability. Nowadays, wireless communication products are more and more widely used, the use scenes are more and more, the communication demand is higher and higher, and higher requirements are also put on the gain of an antenna.
At present, the gain of a common dipole antenna or a common dipole array antenna can only be about 2-5 dBi, the requirement of communication equipment needing some signals transmitted in a long distance cannot be met, and the design of an antenna with high gain is particularly important.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to design a dipole array antenna, can have the high-gain characteristic.
In order to solve the technical problem, an aspect of the present invention provides a dipole array antenna, where the antenna includes a substrate, N binary dipole array elements and a microstrip parallel double line, and N is greater than or equal to 2; wherein the content of the first and second substances,
the first transmission conductor and the second transmission conductor of the microstrip parallel double-line are respectively printed on a first surface and a second surface of a dielectric layer of the substrate and distributed along the axis position of the substrate, the first end of the first transmission conductor is connected with a first feeding point arranged on the first surface, and the first end of the second transmission conductor is connected with a second feeding point arranged on the second surface;
the N binary dipole array elements are arranged along the micro-strip in parallel double lines to form an array; each binary dipole array element comprises a first branch unit printed on the first surface and a second branch unit printed on the second surface;
the first branch unit and the second branch unit respectively comprise a first branch, a second branch and a third branch; the first end of the second branch is connected with the first end of the first branch, and the first end of the third branch is connected with the second end of the first branch.
Furthermore, the first branch unit and the second branch unit in each binary dipole array element are arranged in mirror symmetry and are symmetrically distributed on the first surface and the second surface of the dielectric layer.
Furthermore, the electrical length of the local microstrip parallel double line between the first branches of two adjacent binary dipole array elements is one wavelength.
Further, the second branch and the third branch of the first branch unit are symmetrically distributed on the left side and the right side of the first transmission conductor; the second branch knot and the third branch knot of the second branch knot unit are symmetrically distributed on the left side and the right side of the second transmission conductor.
Further, the first feeding point and the second feeding point are both located at the first end of the substrate.
Further, a second end of the first transmission conductor is connected to a first branch node center point of the first branch node unit closest to the second end of the substrate; the second end of the second transmission conductor is connected to the position of the first branch node center point of the second branch node unit closest to the second end of the substrate.
Further, a broadband adjusting transmission section is arranged between the first branch section of the second branch section unit closest to the second feeding point and the second feeding point of the second transmission conductor.
Further, the first feeding point is connected with the positive electrode of the power supply, and the second feeding point is grounded.
Further, the value of N is 4.
Compared with the prior art, the utility model provides a pair of dipole array antenna, a plurality of binary dipole array element arranges at base plate axis position and distributes into the array, and first minor matters unit all connects first feed point through first transmission conductor, second minor matters unit all connects the second feed point through second transmission conductor, when first feed point and second feed point access power, a plurality of binary dipole array element through the parallel double-line connection of microstrip can be by the excitation of cophase, the cophase and superpose each other radiate, thereby realize the omnidirectional radiation of antenna, high gain performance, can be applicable to the equipment that needs communication under the 802.11ax Wave2 standard.
Drawings
Fig. 1 is a schematic perspective view of a preferred embodiment of a dipole array antenna provided by the present invention;
fig. 2(a) is an overall front view structural view of a first face of a dipole array antenna shown in fig. 1;
fig. 2(b) is an overall front view structural view of the second face of a dipole array antenna shown in fig. 1;
fig. 3(a) is a current distribution diagram of a conductor in a first face of a dipole array antenna as shown in fig. 1;
fig. 3(b) is a current distribution diagram of a conductor in the second face of a dipole array antenna as shown in fig. 1;
fig. 4 is a graph illustrating the S11 parameter of a dipole array antenna according to the present invention;
fig. 5 is a horizontal directional diagram of a dipole array antenna provided by the present invention;
fig. 6 is a vertical pattern diagram of a dipole array antenna according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model provides a dipole array antenna please refer to fig. 1 to 3, fig. 1 is the utility model provides a dipole array antenna's a preferred embodiment's spatial structure sketch map, fig. 2(a) to 2(b) are respectively as 1 shows a dipole array antenna's first face, the whole front view structure chart of second face. Specifically, the antenna comprises a substrate 1, N binary dipole array elements 2 and a microstrip parallel double line 3, wherein N is more than or equal to 2; wherein the content of the first and second substances,
the first transmission conductor 31 and the second transmission conductor 32 of the microstrip parallel double-line 3 are respectively printed on the first surface and the second surface of a dielectric layer of the substrate and distributed along the axis position of the substrate 1, the first end of the first transmission conductor 31 is connected with a first feeding point A arranged on the first surface, and the first end of the second transmission conductor 32 is connected with a second feeding point B arranged on the second surface;
the N binary dipole array elements 2 are arranged along the microstrip parallel double lines 3 to form an array; each binary dipole array element 2 comprises a first branch unit 21 printed on the first surface and a second branch unit 22 printed on the second surface;
the first branch unit 21 and the second branch unit 22 each include a first branch 4, a second branch 5, and a third branch 6; the first end of the second branch 5 is connected with the first end of the first branch 4, and the first end of the third branch 6 is connected with the second end of the first branch 4.
It should be noted that, the parallel double line of microstrip has included first transmission conductor and the second transmission conductor that is parallel to each other, the utility model discloses in, first transmission conductor and second transmission conductor are respectively at first face and the second face of a base plate dielectric layer, and are parallel to each other in the space and arrange. The binary dipole array element comprises a first branch unit and a second branch unit, and the first branch unit and the second branch unit are fed to generate a radiation field. The binary dipole array element and the microstrip parallel double line are both conductors.
It should be noted that, if the substrate is a PCB double-sided board, the first surface and the second surface are respectively the top and bottom surfaces of the PCB double-sided board; if the substrate is a multi-panel PCB, for example, sequentially including a first dielectric layer to a third dielectric layer, the first surface and the second surface may be top and bottom surfaces of the second dielectric layer.
The utility model provides a pair of dipole array antenna, a plurality of binary dipole array element arranges at base plate axis position and distributes into the array, and first branch festival unit all connects first feed point through first transmission conductor, second branch festival unit all connects the second feed point through second transmission conductor, when first feed point and second feed point access power, a plurality of binary dipole array element through the parallel double-line connection of microstrip can be by the excitation of cophase, the cophase and stack each other radiate, thereby realize the omnidirectional radiation of antenna, high gain performance, can be applicable to the equipment that needs communication under the 802.11ax Wave2 standard.
Preferably, the first branch unit and the second branch unit in each binary dipole array element are arranged in mirror symmetry and symmetrically distributed on the first surface and the second surface of the dielectric layer.
As shown in fig. 1, the first and second branch units are mirror-symmetric about the axis l.
Preferably, the electrical length of the local microstrip parallel double line 33 between the first branches of two adjacent binary dipole array elements is one wavelength.
It should be noted that the local microstrip parallel double line 33 refers to a part of the microstrip line of the microstrip parallel double line between two adjacent binary dipole array elements. Specifically, the electrical length of the portion of the microstrip line of the first transmission conductor is one wavelength, and the electrical length of the portion of the microstrip line of the second transmission conductor is also one wavelength. So that the radiation energy of each binary dipole array element can be superposed.
Preferably, the second branch and the third branch of the first branch unit are symmetrically distributed on the left and right sides of the first transmission conductor; the second branch knot and the third branch knot of the second branch knot unit are symmetrically distributed on the left side and the right side of the second transmission conductor.
Specifically, the second minor matters and the third minor matters of the first minor matters unit or the second minor matters unit are distributed in an axial symmetry mode relative to the first transmission conductor or the second transmission conductor, so that the directional diagram energy radiation is uniform.
Preferably, the first feeding point a and the second feeding point B are both located at the substrate first end.
The position of feed point can influence the current flow direction of each branch and knot, and then influences the magnetic field, the utility model discloses locate the same one end of base plate with first feed point and second feed point to obtain the current distribution as shown in figure 3(a) to figure 3 (b).
Preferably, the second end of the first transmission conductor is connected to a first branch node center point of the first branch node unit closest to the second end of the substrate; the second end of the second transmission conductor is connected to the position of the first branch node center point of the second branch node unit closest to the second end of the substrate.
As shown in fig. 1, the first branch unit closest to the second end of the substrate is the first branch unit farthest from the first feeding point a, and a central point of the first branch is connected to the second end of the first transmission conductor, that is, the first transmission conductor does not extend to the second end of the substrate; the second branch unit closest to the second end of the substrate is the second branch unit farthest from the second feeding point B, the central point of the first branch is connected with the second end of the second transmission conductor, and the second transmission conductor does not extend to the second end of the substrate.
Preferably, the second transmission conductor is provided with a broadband adjusting transmission section 7 between the first branch of the second branch unit closest to the second feeding point and the second feeding point.
Specifically, the width of the microstrip line of the broadband adjusting transmission section 7 is the same as or different from the width of the microstrip line of the other part of the second transmission conductor, and the width of the microstrip line of the broadband adjusting transmission section can be adjusted in experimental simulation, so that antennas with different bandwidths can be obtained, and the bandwidth of the antenna can be optimized.
Preferably, the first feeding point a is connected to the positive electrode of the power supply, and the second feeding point B is grounded.
At this time, the first branch unit is used as a radiation branch unit, and the second branch unit is used as a grounding branch unit.
Preferably, N has a value of 4.
As shown in fig. 1, the antenna includes four dipole antenna elements arranged to form an array.
When the specific implementation, the utility model provides a pair of dipole array antenna, a plurality of binary dipole array element arranges at base plate axis position and distributes into the array, and first minor matters unit all connects first feed point through first transmission conductor, second minor matters unit all connects the second feed point through second transmission conductor, when first feed point and second feed point access power, a plurality of binary dipole array element through the parallel double-line connection of microstrip can be by the excitation of cophase, the cophase and superpose each other radiate, thereby realize the omnidirectional radiation of antenna, high gain performance, can be applicable to the equipment that needs communication under the 802.11ax Wave2 standard.
Furthermore, the present invention discloses a directional diagram of the antenna design shown in fig. 1, which is measured under certain test conditions by the inventor, please refer to fig. 4 to 6, and as can be seen from fig. 4, the present invention provides a dipole array antenna, which has S11 parameter less than-10 dB in the 6.2-8 GHz band, and is well matched. As can be seen from fig. 5 to fig. 6, the utility model provides a pair of dipole array antenna maximum gain can reach 8.4dBi in 6 ~ 7GHz frequency channel, and the biggest directivity factor 8.2dBi on the horizontal plane, and can obtain horizontal omnidirectional radiation, can satisfy common external antenna's application demand, can be applicable to the equipment that needs communication under the 802.11ax Wave2 standard. Above-mentioned test data only test under certain test condition and obtain the utility model discloses matching effect, gain effect that can reach, in order to embody the utility model discloses a dipole array antenna' S beneficial effect is not the restriction the utility model discloses maximum gain, S11 parameter, the biggest orientation coefficient etc. that can reach.
And the utility model provides a pair of dipole array antenna can carry out the overall arrangement on two-sided base plate, space utilization, and the antenna size is little, if feed bottom two-sided base plate, can also be applicable to common router equipment, easily assembly.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (9)
1. A dipole array antenna is characterized by comprising a substrate, N binary dipole array elements and microstrip parallel double lines, wherein N is more than or equal to 2; wherein the content of the first and second substances,
the first transmission conductor and the second transmission conductor of the microstrip parallel double-line are respectively printed on a first surface and a second surface of a dielectric layer of the substrate and distributed along the axis position of the substrate, the first end of the first transmission conductor is connected with a first feeding point arranged on the first surface, and the first end of the second transmission conductor is connected with a second feeding point arranged on the second surface;
the N binary dipole array elements are arranged along the micro-strip in parallel double lines to form an array; each binary dipole array element comprises a first branch unit printed on the first surface and a second branch unit printed on the second surface;
the first branch unit and the second branch unit respectively comprise a first branch, a second branch and a third branch; the first end of the second branch is connected with the first end of the first branch, and the first end of the third branch is connected with the second end of the first branch.
2. The dipole array antenna of claim 1, wherein said first stub element and said second stub element of each of said binary dipole array elements are arranged in mirror symmetry and symmetrically distributed on a first side and a second side of said dielectric layer.
3. The dipole array antenna of claim 1 wherein the electrical length of the local microstrip parallel doublet between the first legs of two adjacent binary dipole array elements is one wavelength.
4. The dipole array antenna of claim 1 wherein said second stub and said third stub of said first stub element are symmetrically disposed on left and right sides of said first transmission conductor; the second branch knot and the third branch knot of the second branch knot unit are symmetrically distributed on the left side and the right side of the second transmission conductor.
5. A dipole array antenna as recited in claim 1, wherein said first feed point and said second feed point are both located at said substrate first end.
6. The dipole array antenna of claim 1 wherein said first transmission conductor has a second end connected to a first stub center point of said first stub element nearest said substrate second end; the second end of the second transmission conductor is connected to the position of the first branch node center point of the second branch node unit closest to the second end of the substrate.
7. The dipole array antenna of claim 5 wherein said second transmission conductor has a broadband conditioning transmission segment disposed between a first stub of a second stub element nearest said second feed point to said second feed point.
8. The dipole array antenna of claim 1 wherein said first feed point is connected to a positive power supply and said second feed point is connected to ground.
9. A dipole array antenna as recited in any of claims 1-8, wherein N is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921806214.2U CN210897639U (en) | 2019-10-25 | 2019-10-25 | Dipole array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921806214.2U CN210897639U (en) | 2019-10-25 | 2019-10-25 | Dipole array antenna |
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| Publication Number | Publication Date |
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| CN210897639U true CN210897639U (en) | 2020-06-30 |
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| CN201921806214.2U Active CN210897639U (en) | 2019-10-25 | 2019-10-25 | Dipole array antenna |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111987444A (en) * | 2020-08-21 | 2020-11-24 | 福耀玻璃工业集团股份有限公司 | Antenna glass and vehicle |
| CN111987445A (en) * | 2020-08-21 | 2020-11-24 | 福耀玻璃工业集团股份有限公司 | Antenna glass and vehicle |
| CN114614255A (en) * | 2020-12-08 | 2022-06-10 | 华为技术有限公司 | Antenna |
-
2019
- 2019-10-25 CN CN201921806214.2U patent/CN210897639U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111987444A (en) * | 2020-08-21 | 2020-11-24 | 福耀玻璃工业集团股份有限公司 | Antenna glass and vehicle |
| CN111987445A (en) * | 2020-08-21 | 2020-11-24 | 福耀玻璃工业集团股份有限公司 | Antenna glass and vehicle |
| CN111987444B (en) * | 2020-08-21 | 2023-12-05 | 福耀玻璃工业集团股份有限公司 | Antenna glass and vehicle |
| CN114614255A (en) * | 2020-12-08 | 2022-06-10 | 华为技术有限公司 | Antenna |
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Effective date of registration: 20220620 Address after: Floor 12-17, unit 1, building 2, No. 466, Xinyu Road, high tech Zone, Chengdu, Sichuan 610000 Patentee after: Chengdu Lianzhou International Technology Co.,Ltd. Address before: 518000 the 1st and 3rd floors of the south section of building 24 and the 1st-4th floor of the north section of building 28, Shennan Road Science and Technology Park, Nanshan District, Shenzhen City, Guangdong Province Patentee before: TP-LINK TECHNOLOGIES Co.,Ltd. |