CN214203973U - Multi-frequency antenna - Google Patents
Multi-frequency antenna Download PDFInfo
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- CN214203973U CN214203973U CN202023223951.5U CN202023223951U CN214203973U CN 214203973 U CN214203973 U CN 214203973U CN 202023223951 U CN202023223951 U CN 202023223951U CN 214203973 U CN214203973 U CN 214203973U
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Abstract
The utility model provides a multifrequency antenna, including the reflecting plate, the reflecting plate includes the horizontal part and sets up two vertical portions of horizontal part both sides, multifrequency antenna is still including setting up two radiation arrays of the positive both sides of horizontal part, every radiation array includes N low frequency radiation unit, N first high frequency radiation unit and N second high frequency radiation unit, N low frequency radiation unit and N first high frequency radiation unit are followed the longitudinal separation alternate arrangement of horizontal part, every the inboard center department of low frequency radiation unit is equipped with one respectively second high frequency radiation unit, N low frequency radiation unit constitutes the low frequency array, N first high frequency radiation unit and N second high frequency radiation unit constitute the high frequency array, N is more than or equal to 1's positive integer. The utility model discloses small, with low costs, have good electrical properties such as the high low frequency radiation performance of preferred and high isolation.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a mobile communication field, concretely relates to multifrequency antenna.
[ background of the invention ]
The antenna is used as a key front-end component of a mobile communication system, and the quality of the performance of the antenna plays a decisive role in the network quality of an operator. In recent years, with the rapid increase of the number of mobile users, communication systems are continuously updated and expanded, and higher requirements are put forward on the design of antennas, so that on one hand, the broadband and multi-frequency of the antennas are required to simultaneously meet the communication requirements of a plurality of systems; on the other hand, it is required to implement multi-system sharing to reduce the number of antennas, so as to reduce interference among antennas and reduce cost. The urban population is more and more, people have weak radiation awareness on antennas, and many people object to building a base station signal tower in a cell; under the condition that the number of the base station signal towers is not changed, the network needs to be increased in capacity, the smaller the volume of the antenna is, the better the antenna is, and the installation and maintenance are convenient. In order to ensure that each index achieves the maximum benefit, the multi-frequency antenna is developed accordingly.
The existing multi-frequency antenna has large size and high cost, the performance index of the antenna often cannot meet the requirement, and the use requirement of an operator cannot be met.
[ Utility model ] content
A primary object of the present invention is to provide a multi-band antenna, which has a small size and a low cost, and has good electrical properties such as high and low frequency radiation performance and high isolation.
In order to achieve the above object, the present invention provides a multi-band antenna, which comprises a reflector, the reflecting plate comprises a horizontal part and two vertical parts arranged at two sides of the horizontal part, the multi-frequency antenna also comprises two radiation arrays arranged at two sides of the front surface of the horizontal part, each radiation array comprises N low-frequency radiation units, N first high-frequency radiation units and N second high-frequency radiation units, the N low-frequency radiating units and the N first high-frequency radiating units are alternately arranged at intervals along the longitudinal direction of the horizontal part, the center of the inner side of each low-frequency radiating unit is respectively provided with one second high-frequency radiating unit, the N low-frequency radiating units form a low-frequency array, the N first high-frequency radiating units and the N second high-frequency radiating units form a high-frequency array, and N is a positive integer greater than or equal to 1.
As a preferred technical solution, the operating frequency band of the low frequency array is 698-960MHz, the structures of the first high frequency radiating unit and the second high frequency radiating unit are the same, and the operating frequency band of the high frequency array is 1710-2690 MHz.
In a preferred embodiment, in each radiation array, the distance between two adjacent low-frequency radiation units is twice the distance between the adjacent first high-frequency radiation unit and the adjacent second high-frequency radiation unit.
As a preferable technical solution, two first metal sheets are arranged between the two radiation arrays, and the two first metal sheets are symmetrical with respect to a longitudinal center line of the front surface of the horizontal portion; the first metal sheet comprises a first installation part arranged on the front surface of the horizontal part and a first vertical part formed on one side of the first installation part, and the first vertical parts of the two first metal sheets are close to each other and have a gap therebetween.
In a preferred technical solution, in each radiation array, a second metal sheet is respectively disposed on one side of the first high-frequency radiation unit close to the adjacent vertical portion and one side of the first high-frequency radiation unit close to the adjacent first metal sheet, and the second metal sheet is disposed on a front surface of the horizontal portion.
Preferably, the second metal sheet includes a second mounting portion provided on a front surface of the horizontal portion, and a second vertical portion and an inclined portion formed on both sides of the second mounting portion, and the second vertical portion is close to the first high-frequency radiating unit.
As a preferred technical solution, in each radiation array, two sides of the first high-frequency radiation unit close to the low-frequency radiation unit are respectively provided with a third metal sheet, the third metal sheet includes a third installation portion arranged on the front surface of the horizontal portion and a third vertical portion formed on one side of the third installation portion, and the third installation portion is close to the first high-frequency radiation unit.
As a preferred technical scheme, fourth metal sheets are respectively arranged on the periphery of the low-frequency radiation unit, the fourth metal sheets are arranged on the front surface of the horizontal part, and the fourth metal sheets on the periphery of the low-frequency radiation unit are connected with each other to form a frame-shaped structure.
As preferred technical scheme, in every radiation array, be equipped with the fifth sheetmetal between low frequency radiation unit and the first high frequency radiation unit, the fifth sheetmetal passes through a support piece setting and is in the front of horizontal part, the fifth sheetmetal with the horizontal part is parallel arrangement.
Preferably, the horizontal part and the two vertical parts are integrally formed, and the distance from the top end of each vertical part to the horizontal part is greater than the distance from the bottom end of each vertical part to the horizontal part.
The utility model provides a multifrequency antenna, simple structure, it is small, realized the index requirement of antenna small-size to have characteristics such as multifrequency, gain height, with low costs, have good electrical properties such as the high low frequency radiation performance and the high isolation of preferred simultaneously, satisfied operator's user demand.
[ description of the drawings ]
To further disclose the specific technical content of the present disclosure, please refer to the attached drawings, wherein:
fig. 1 and fig. 2 are schematic structural diagrams of a multi-frequency antenna according to an embodiment of the present invention;
fig. 3 is a schematic top view of the multi-frequency antenna shown in fig. 1;
fig. 4 is a rear view of the multi-frequency antenna shown in fig. 1.
Description of the symbols:
Low frequency radiating element 20
First high-frequency radiation unit 30
Second high-frequency radiating unit 40
First vertical portion 54
The second vertical portion 64 and the inclined portion 66
Third mounting portion 72 of third metal sheet 70
Third vertical portion 74
Fourth vertical portion 84
[ detailed description ] embodiments
Referring to fig. 1 to 4, the present embodiment provides a multi-frequency antenna, which includes a reflection plate 10, two radiation arrays 16, and a feeding network (not shown). The reflective plate 10 is a metal reflective plate, and has an H-shape, and includes a horizontal portion 12 and two vertical portions 14 disposed at two sides of the horizontal portion 12. Two radiating arrays 16 are disposed on both sides of the front surface of the horizontal portion 12, and a feeding network is disposed on the back surface of the horizontal portion 12 and connected to the two radiating arrays 16, respectively, to provide parallel feeding to the two radiating arrays 16.
Each radiating array 16 includes N low frequency radiating elements 20, N first high frequency radiating elements 30 and N second high frequency radiating elements 40. The N low-frequency radiating units 20 and the N first high-frequency radiating units 30 are alternately arranged at intervals along the longitudinal direction of the horizontal portion 12, one second high-frequency radiating unit 40 is respectively arranged at the center of the inner side of each low-frequency radiating unit 20, the N low-frequency radiating units 20 form a low-frequency array, the N first high-frequency radiating units 30 and the N second high-frequency radiating units 40 form a high-frequency array, and N is a positive integer greater than or equal to 1. By the structure, each radiation array 16 comprises a low-frequency array and a high-frequency array which are coaxially arranged, so that the layout optimization of the antenna can be realized in a limited space, the size is small, the small-size index requirement of the antenna is realized, the antenna has the characteristics of multiple frequencies, high gain, low cost and the like, and the antenna has good high and low-frequency radiation performance, high isolation and other good electrical performances. In addition, the two vertical parts 14 can well improve the directional diagram performance of the two radiation arrays 16, so that the antenna has better front-to-back ratio and beam width, and the good electrical performance of the antenna is ensured. In the drawings, each radiation array 16 only shows one low-frequency radiation unit 20, one first high-frequency radiation unit 30 and one second high-frequency radiation unit 40. The number of the low frequency radiation elements 20, the first high frequency radiation elements 30 and the second high frequency radiation elements 40 in each radiation array 16 can be set according to practical situations.
The low-frequency radiating unit 20, the first high-frequency radiating unit 30 and the second high-frequency radiating unit 40 are all formed by metal die casting, and the first high-frequency radiating unit 30 and the second high-frequency radiating unit 40 are identical in structure. The working frequency range of the low-frequency array is 698 minus 960MHz, the working frequency range of the high-frequency array is 1710 minus 2690MHz, and the frequency range is wide.
The horizontal portion 12 and the two vertical portions 14 are integrally formed for manufacturing convenience, and the distance from the top end of the vertical portion 14 to the horizontal portion 12 is greater than the distance from the bottom end of the vertical portion 14 to the horizontal portion 12.
In each radiation array 16, the distance between two adjacent low-frequency radiation units 20 is twice the distance between the adjacent first high-frequency radiation unit 30 and second high-frequency radiation unit 40, so that the mutual influence between the high-frequency band and the low-frequency band is small. In this embodiment, the distance between two adjacent low-frequency radiating elements 20 is 250 mm, and the distance between the adjacent first high-frequency radiating element 30 and second high-frequency radiating element 40 is 125 mm. The spacing between the two radiating arrays 16 is 214 mm. It is to be understood that the spacing between two adjacent low frequency radiation elements 20, the spacing between the first high frequency radiation element 30 and the second high frequency radiation element 40, and the spacing between two radiation arrays 16 may be set according to actual situations.
Two first metal sheets 50 are disposed between the two radiation arrays 16, the two first metal sheets 50 are symmetrical with respect to a longitudinal center line of the front surface of the horizontal portion 12, and the two first metal sheets 50 respectively extend along the longitudinal direction of the horizontal portion 12. The two first metal sheets 50 are provided to reduce mutual coupling between the two radiating arrays 16, thereby improving the overall performance of the antenna. The first metal sheets 50 include first mounting portions 52 disposed on the front surface of the horizontal portion 12 and first vertical portions 54 formed on the sides of the first mounting portions 52 far from the radiation array 16, and the first vertical portions 54 of the two first metal sheets 50 are close to each other with a gap therebetween.
In each radiation array 16, a side of the first high-frequency radiation unit 30 adjacent to the adjacent vertical portion 14 and a side adjacent to the adjacent first metal sheet 50 are respectively provided with a second metal sheet 60, and the second metal sheet 60 is provided on the front surface of the horizontal portion 12.
The second metal sheet 60 includes a second mounting portion 62 provided on the front surface of the horizontal portion 12, and a second vertical portion 64 and an inclined portion 66 formed on both sides of the second mounting portion 62, the second vertical portion 64 and the inclined portion 66 being opposed, the second vertical portion 64 being close to the first high-frequency radiating unit 30. The second mounting portion 62, the second vertical portion 64, and the inclined portion 66 all extend in the longitudinal direction of the horizontal portion 12. The length of the second mounting portion 62 is larger than the outer length of the first high-frequency radiating element 30. The angle between the inclined portion 66 and the second mounting portion 62 is an obtuse angle. The vertical distance from the top end of the inclined portion 66 to the second mounting portion 62 is greater than the distance from the top end of the second vertical portion 64 to the second mounting portion 62.
In each radiation array 16, third metal sheets 70 are respectively disposed on two sides of the first high-frequency radiation unit 30 close to the low-frequency radiation unit 20, the third metal sheets 70 include third mounting portions 72 disposed on the front surface of the horizontal portion 12 and third vertical portions 74 formed on one sides of the third mounting portions 72 far from the first high-frequency radiation unit 30, and the third mounting portions 72 are close to the first high-frequency radiation unit 30.
The second metal sheet 60 and the third metal sheet 70 are provided to improve the radiation characteristics of the first high-frequency radiation unit 30. By properly adjusting the size, position, etc. of the second metal sheet 60 and the third metal sheet 70, the antenna can obtain good radiation characteristics in a high frequency band.
The four sides of the low-frequency radiating unit 20 are respectively provided with a fourth metal sheet 80, the fourth metal sheets 80 are arranged on the front surface of the horizontal portion 12, and the fourth metal sheets 80 on the four sides of the low-frequency radiating unit 20 are connected with each other to form a frame-shaped structure. The fourth metal sheet 80 is provided to improve the radiation characteristic of the low frequency radiation unit 20. The fourth metal sheet 80 includes a fourth mounting portion 82 provided on the front surface of the horizontal portion 12 and a fourth vertical portion 84 formed on a side of the fourth mounting portion 82 away from the low frequency radiating unit 20, as shown in fig. 1. The fourth mounting portion 82 is located on the inside of the frame-shaped structure. The fourth mounting portions 82 around the low frequency radiating element 20 are connected to each other, and the fourth vertical portions 84 around the low frequency radiating element 20 are connected to each other. By properly adjusting the size, position, etc. of the fourth metal sheet 80, the antenna can obtain good radiation characteristics in a low frequency band.
In each radiation array 16, a fifth metal sheet 90 is disposed between the low-frequency radiation unit 20 and the first high-frequency radiation unit 30, the fifth metal sheet 90 is disposed on the front surface of the horizontal portion 12 through a support 92, and the fifth metal sheet 90 is disposed in parallel with the horizontal portion 12. The fifth metal sheet 90 extends in the lateral direction of the horizontal portion 12 and is located between the low-frequency radiating unit 20 and the third metal sheet 70, and a distance from the top end of the fifth metal sheet 90 to the horizontal portion 12 is greater than a distance from the top end of the first high-frequency radiating unit 30 to the horizontal portion 12 and is less than a distance from the top end of the low-frequency radiating unit 20 to the horizontal portion 12. In this embodiment, the number of the supporting members 92 is two, two ends of the fifth metal sheet 90 are respectively fixed to the two supporting members 92, the two supporting members 92 are disposed on the front surface of the horizontal portion 12, and the supporting members 92 are preferably a plastic member. The fifth metal sheet 90 can improve the horizontal half-power beam width and isolation of the antenna.
The utility model discloses simple structure, easily equipment, stable performance, with low costs, have characteristics such as ultra wide band, multifrequency, gain height, and the influence each other between high low frequency section is less, better radiation characteristics such as better front-to-back ratio, cross polarization discrimination index, horizontal plane beam width convergence still have good electrical properties such as high isolation, low standing-wave ratio, satisfied the performance index requirement of present operator to the multifrequency antenna.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a multifrequency antenna, includes the reflecting plate, its characterized in that, the reflecting plate includes the horizontal part and sets up two vertical portions of horizontal part both sides, multifrequency antenna is still including setting up two radiation arrays of the positive both sides of horizontal part, every radiation array includes N low frequency radiation unit, N first high frequency radiation unit and N second high frequency radiation unit, N low frequency radiation unit and N first high frequency radiation unit are followed the longitudinal separation alternate arrangement of horizontal part, every the inboard center department of low frequency radiation unit is equipped with one respectively second high frequency radiation unit, the low frequency array is constituteed to N low frequency radiation unit, N first high frequency radiation unit and N second high frequency radiation unit constitute high frequency array, N is the positive integer more than or equal to 1.
2. The multi-band antenna as claimed in claim 1, wherein the operating band of the low-frequency array is 698-960MHz, the first high-frequency radiating unit and the second high-frequency radiating unit have the same structure, and the operating band of the high-frequency array is 1710-2690 MHz.
3. The multi-frequency antenna of claim 1, wherein a spacing between two adjacent low-frequency radiating elements in each radiating array is twice a spacing between adjacent first and second high-frequency radiating elements.
4. The multi-frequency antenna of claim 1, wherein two first metal sheets are disposed between the two radiating arrays, the two first metal sheets being symmetrical with respect to a longitudinal center line of the front surface of the horizontal portion; the first metal sheet comprises a first installation part arranged on the front surface of the horizontal part and a first vertical part formed on one side of the first installation part, and the first vertical parts of the two first metal sheets are close to each other and have a gap therebetween.
5. The multi-band antenna of claim 2, wherein in each radiation array, a second metal plate is disposed on a side of the first high-frequency radiation unit adjacent to the adjacent vertical portion and a side of the first high-frequency radiation unit adjacent to the first metal plate, respectively, and the second metal plate is disposed on a front surface of the horizontal portion.
6. The multifrequency antenna of claim 5, wherein the second metal sheet comprises a second mounting portion disposed on a front surface of the horizontal portion, and a second vertical portion and an inclined portion formed on both sides of the second mounting portion, the second vertical portion being adjacent to the first high-frequency radiation unit.
7. The multi-band antenna of claim 1, wherein in each radiation array, third metal sheets are respectively disposed on two sides of the first high-frequency radiation unit close to the low-frequency radiation unit, the third metal sheets comprise a third installation portion disposed on the front surface of the horizontal portion and a third vertical portion formed on one side of the third installation portion, and the third installation portion is close to the first high-frequency radiation unit.
8. The multi-band antenna of claim 1, wherein the low-frequency radiating elements are respectively provided with fourth metal sheets on the periphery thereof, the fourth metal sheets are disposed on the front surface of the horizontal portion, and the fourth metal sheets on the periphery of the low-frequency radiating elements are connected to each other to form a frame structure.
9. The multi-band antenna of claim 1, wherein a fifth metal sheet is disposed between the low-frequency radiating unit and the first high-frequency radiating unit in each radiating array, the fifth metal sheet is disposed on the front surface of the horizontal portion through a supporting member, and the fifth metal sheet is disposed in parallel with the horizontal portion.
10. The multi-frequency antenna of claim 1, wherein the horizontal portion and two vertical portions are integrally formed, and a distance from a top end of the vertical portion to the horizontal portion is greater than a distance from a bottom end of the vertical portion to the horizontal portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023223951.5U CN214203973U (en) | 2020-12-28 | 2020-12-28 | Multi-frequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023223951.5U CN214203973U (en) | 2020-12-28 | 2020-12-28 | Multi-frequency antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214203973U true CN214203973U (en) | 2021-09-14 |
Family
ID=77630109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023223951.5U Expired - Fee Related CN214203973U (en) | 2020-12-28 | 2020-12-28 | Multi-frequency antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214203973U (en) |
-
2020
- 2020-12-28 CN CN202023223951.5U patent/CN214203973U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210914 Termination date: 20211228 |