CN211929697U - Radiation unit and communication antenna - Google Patents
Radiation unit and communication antenna Download PDFInfo
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- CN211929697U CN211929697U CN202020321936.5U CN202020321936U CN211929697U CN 211929697 U CN211929697 U CN 211929697U CN 202020321936 U CN202020321936 U CN 202020321936U CN 211929697 U CN211929697 U CN 211929697U
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- 230000005855 radiation Effects 0.000 title claims abstract description 77
- 238000004891 communication Methods 0.000 title claims abstract description 17
- 230000008878 coupling Effects 0.000 claims description 36
- 238000010168 coupling process Methods 0.000 claims description 36
- 238000005859 coupling reaction Methods 0.000 claims description 36
- 238000003491 array Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010295 mobile communication Methods 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model is suitable for a mobile communication technology field provides a radiating element and communication antenna, radiating element includes radiation platform and feed piece, radiation platform's all around edge is to having dug with one side and forming a plurality of hems, the feed piece is located on the radiation platform, first clearance groove and second clearance groove have been seted up on the radiation platform, first clearance groove and second clearance groove are parallel clearance groove, the second clearance groove distributes in radiation platform's middle part, the one end and the second clearance groove intercommunication of first clearance groove, the other end of first clearance groove is the open end, the open end of first clearance groove is located the interval department of two adjacent hems, the one side of the orientation hem of first clearance groove is located to the feed piece. The utility model discloses a radiating element, radiating platform's all around edge is to forming a plurality of hems with turning up with one side, reduces the bore, and the equipment is simple. The first clearance groove of the parallel clearance groove structure is adopted, and the second clearance groove communicated with the first clearance groove is adopted, so that the radiation performance of the antenna is ensured.
Description
Technical Field
The utility model relates to a mobile communication technology field, more specifically say, relate to a radiating element and communication antenna.
Background
The size of the radiating element, which is a main component of the antenna for radiating and receiving electromagnetic waves, greatly affects the size of the antenna. With the development of antenna technology, users have increasingly greater requirements for miniaturization of antennas, and more frequency bands need to be integrated under the same bandwidth.
The problem that the size of an antenna is large is solved by reducing the aperture of an existing radiating unit, but the performance of the antenna is affected by reducing the aperture.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a radiating element and communication antenna aims at solving the technical problem that current radiating element bore reduces can influence the antenna performance.
In order to achieve the above object, the utility model adopts the following technical scheme: the edge of the periphery of the radiation platform is turned up towards the same side to form a plurality of folded edges, the feed sheet is arranged on the radiation platform, the folded edges are distributed at intervals around the feed sheet, a first clearance groove used for transmitting electromagnetic waves and a second clearance groove used for adjusting input impedance are formed in the radiation platform, the first clearance groove and the second clearance groove are parallel clearance grooves, the second clearance groove is distributed in the middle of the radiation platform, one end of the first clearance groove is communicated with the second clearance groove, the other end of the first clearance groove is an open end, the open end of the first clearance groove is located at the interval between the two adjacent folded edges, and the feed sheet is arranged on one side, facing the folded edges, of the first clearance groove.
Further, the first clearance groove and the second clearance groove are both rectangular groove structures, and the second clearance groove is perpendicular to the first clearance groove.
Furthermore, a plurality of first clearance grooves are formed in the radiation platform and are distributed at equal intervals in the circumferential direction;
the number of the feed pieces is multiple, each feed piece is arranged corresponding to two opposite first clearance grooves, and the feed pieces are intersected;
between two adjacent feed plates, the feed plate close to the radiation platform is provided with a concave part, the concave part is positioned at the intersection of two adjacent feed plates, and the concave part is concave towards the direction of the radiation platform; alternatively, the first and second electrodes may be,
between two adjacent feed pieces, keep away from radiation platform feed piece has the bellying, the bellying is located two adjacent the crossing department of feed piece, just the bellying is towards keeping away from radiation platform's direction is protruding.
Further, the feeding tab includes:
the first coupling part is arranged corresponding to one of the first clearance grooves;
the second coupling part is arranged corresponding to the other opposite first clearance groove;
a connecting portion connected between the first coupling portion and the second coupling portion; and
and the feeding part is bent and extended outwards from the edge of the connecting part, which is close to the folded edge.
Further, the feed piece still includes:
the first open-circuit branch joint part is connected with one end, far away from the connecting part, of the first coupling part; and
the second open-circuit branch joint part is connected with one end, far away from the connecting part, of the second coupling part;
the first open-circuit branch node part and the second open-circuit branch node part are of rectangular plate structures, and the lengths of the first open-circuit branch node part and the second open-circuit branch node part are respectively 0.1-0.6 times of wavelength; the widths of the first open stub portion and the second open stub portion are less than or equal to 0.2 times of the wavelength.
Further, the length of the connecting part is less than or equal to 0.25 times of wavelength, and the width of the connecting part is less than or equal to 0.1 times of wavelength.
Further, the groove width of the first clearance groove is 2 mm-4 mm, and the length of the first clearance groove is less than or equal to 0.25 times of wavelength.
Further, the radiation unit further includes:
the cable is arranged on one side, far away from the feed part, of the radiation platform and is electrically connected with a feed point of the feed part; and
the base is arranged on one side, far away from the feeding portion, of the radiation platform and used for supporting the radiation platform.
The utility model also provides a communication antenna, including above-mentioned radiating element, radiating element is the low frequency radiating element, communication antenna still includes:
and the first high-frequency radiating element is arranged on the radiating unit and is coaxial with the radiating unit.
Further, the communication antenna further comprises:
the reflecting plate is provided with a plurality of radiating element arrays;
the plurality of second high-frequency radiating elements are arranged on the reflecting plate in an array mode, and at least one second high-frequency radiating element is arranged between every two adjacent radiating units.
The utility model provides a radiating element's beneficial effect lies in: the edge of the periphery of the radiation platform is turned up towards the same side to form a plurality of folded edges, so that the caliber is reduced, and the assembly is simple. The first clearance groove with the parallel clearance groove structure can transmit electromagnetic waves, and the second clearance groove communicated with the first clearance groove is further adopted and is also of the parallel clearance groove structure, so that the input impedance of the antenna can be adjusted, and the bandwidth can be expanded. The radiating unit can reduce the caliber which is about 0.3-0.4 times of the working wavelength, reduce the size of the antenna, simultaneously ensure the radiation performance of the antenna and meet the user requirements.
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 perspective view of a radiation unit according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a feed sheet provided in an embodiment of the present invention;
fig. 3 is a schematic perspective view of a radiation unit according to an embodiment of the present invention;
fig. 4 is a schematic perspective view of a communication antenna according to an embodiment of the present invention;
fig. 5 is a schematic perspective view of a communication antenna according to an embodiment of the present invention.
Wherein the reference numbers in the drawings are as follows:
1-a radiating element; 10-a through hole; 11-a radiation platform; 111-a first clearance pocket; 1111-open end; 112-a second clearance groove; 12-folding edges; 13-a feed tab; 130-a recess; 131-a first coupling part; 132-a second coupling; 133-a connecting portion; 134-a feeding part; 135-first open tributary section; 136-a second open branch junction; 14-a cable; 15-a base; 2-a first high-frequency radiating element; 3-a reflector plate; 31-first section; 32-a second segment; 33-third stage; 34-a fourth stage; 4-a second high-frequency radiating element.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
In order to explain the technical solution of the present invention, the following detailed description is made with reference to the specific drawings and examples.
Referring to fig. 1 to 3, an embodiment of the present invention provides a radiation unit 1, which includes a radiation platform 11 and a feed tab 13. The radiation platform 11 is a rectangular plate structure, the edges of the periphery of the radiation platform 11 are turned up to the same side to form a plurality of folded edges 12, and the folded edges 12 and the radiation platform 11 are of an integrally formed structure, so that the radiation platform is convenient to machine and form. The feeding sheet 13 is disposed on the radiation platform 11, and the plurality of folded edges 12 are spaced around the feeding sheet 13. The radiation platform 13 is opened with a first gap groove 111 for transmitting electromagnetic waves and a second gap groove 112 for adjusting input impedance. The first clearance groove 111 and the second clearance groove 112 are both parallel clearance grooves. The second clearance groove 112 is disposed at one end of the first clearance groove 111, the second clearance groove 112 is communicated with the first clearance groove 111, the other end of the first clearance groove 111 is an open end, and the open end of the first clearance groove 111 is located at the interval between two adjacent folding edges 12. A feed tab 13 is disposed on a side of the first gap slot 111 facing the flange 12, the feed tab 13 being coupled to the first gap slot 111 for feeding.
The radiating element 1 is mainly based on the vivaldi antenna principle and is an improvement on the basis thereof. The vivaldi broadband antenna is a slot microstrip antenna that controls electromagnetic waves to radiate electromagnetic energy from one end of a slot to an open end by using an exponential-shaped slot structure. The slot line of the Vivaldi antenna mainly comprises three parts, wherein the first part is a circular slot line and mainly plays a role in impedance matching; the second part is a rectangular slot line which is mutually coupled with the feed board to transmit electromagnetic waves, and the third part is a gradual change slot line which plays a role in guiding the electromagnetic waves radiated by the antenna.
The gradual change form of the gradual change groove is changed according to an exponential law, so that a trumpet-shaped opening is formed in the signal transmitting section and is used for receiving or transmitting electromagnetic waves. Compared with the gradual change groove, the first clearance groove 111 adopting the parallel clearance groove structure is convenient to process and easy to realize while ensuring the radiation performance, and the second clearance groove 112 communicated with the first clearance groove 111 is further adopted, so that the input impedance of the antenna can be adjusted, and the effect of widening the bandwidth is further achieved. By adopting the folded edge 12, the caliber of the radiation unit 1 is reduced, and the caliber of the radiation unit 1 is only 0.3-0.4 times of the working wavelength.
The embodiment of the utility model provides an in radiating element 1, radiating platform 11 all around along to forming a plurality of hems 12 with turning up, when reducing the aperture, the equipment is simple. The first slot 111 with parallel slot structure can transmit electromagnetic wave, and the second slot 112 connected to the first slot 111 is also used, and the second slot 112 is also with parallel slot structure, so that the input impedance of the antenna can be adjusted and the bandwidth can be expanded. The radiation unit 1 can reduce the caliber which is about 0.3 to 0.4 times of the working wavelength, reduce the size of the antenna, simultaneously ensure the radiation performance of the antenna and meet the user requirements.
Specifically, in the present embodiment, the first clearance groove 111 and the second clearance groove 112 are both rectangular groove structures. The second clearance groove 112 is perpendicular to the first clearance groove 111, i.e. the first clearance groove 111 and the second clearance groove 112 form a "T" shaped structure. The antenna impedance is further optimized, and the manufacturing and processing are convenient. The folded edge 12 and the radiation platform 11 adopt metal plate bending coupling feed, compared with the coupling feed adopting a printed circuit board, the metal plate bending coupling is adopted, the assembly is simple, the cost is lower, and the cost can be reduced by 40% -50%.
Specifically, in the present embodiment, the standing wave and the isolation can be adjusted by adjusting the width and the length of the first clearance groove 111. The first gap groove 111 is a rectangular groove structure, the groove width of the first gap groove 111 is 2mm to 4mm, the groove width refers to the width direction along the rectangular groove structure, the length of the first gap groove 111 is not higher than 0.25 times of wavelength, and the length of the first gap groove 111 refers to the length direction along the rectangular groove structure. If not, impedance mismatch is easily caused, and the standing wave is too large. In a particular application, the slot width of the first clearance slot 111 is 2mm, 3mm, or 4mm, and the length of the first clearance slot 111 is 0.05, 0.1, 0.2, or 0.25 wavelengths.
In an embodiment of the present invention, further referring to fig. 1 and fig. 4, a plurality of first clearance grooves 111 are opened on the radiation platform 11, and the plurality of first clearance grooves 111 are circumferentially distributed at equal intervals.
The number of the feed tabs 13 is plural, each feed tab 13 is disposed corresponding to two first clearance grooves 111 opposite to each other, and the plural feed tabs 13 intersect. Between two adjacent feed plates 13, feed plate 13 close to radiation platform 11 has a recessed portion 130, the recessed portion 130 is located at the intersection of two adjacent feed plates 13, and the recessed portion 130 is recessed toward the direction of radiation platform 11, so as to avoid that two feed plates 13 intersect to cause line intersection and affect feeding of feed plate 13. Correspondingly, the radiation platform 11 is provided with a through hole 10 corresponding to the position of the recess 130, so as to accommodate the recess 130.
Of course, in other embodiments, between two adjacent feed plates 13, the feed plate 13 far from the radiation platform 11 has a protruding portion, which is located at the intersection of two feed plates 13 and protrudes in the direction far from the radiation platform 11. The selection can be made according to specific requirements as long as line crossing is avoided.
Preferably, in the present embodiment, the number of the first clearance grooves 111 is four, two opposite first clearance grooves 111 are on a diagonal line, when the radiation platform 11 is a rectangular plate, two first clearance grooves 111 distributed diagonally are in one group, and two groups of first clearance grooves 111 are orthogonally arranged. Correspondingly, the number of the feed tabs 13 is two, each feed tab 13 is disposed corresponding to two first clearance slots 111 on one diagonal, and each feed tab 13 feeds power to a corresponding group of two first clearance slots 111.
In an embodiment of the present invention, further referring to fig. 1 and fig. 2, the feeding sheet 13 is a sheet metal structure and is formed by bending a sheet metal. The feeding tab 13 includes a first coupling portion 131, a second coupling portion 132, a connection portion 133, and a feeding portion 134. The first coupling portion 131 is disposed corresponding to one of the first clearance slots 111, and the first coupling portion 131 is coupled to the first clearance slot 111 for feeding; the second coupling portion 132 is disposed corresponding to the other first gap slot 111, and the second coupling portion 132 couples the power with the other first gap slot 111 in the group. Here, the coupled feeding means that the first coupling portion 131 and the first clearance groove 111 which are not in contact with each other but have a certain small distance therebetween conduct electric energy by means of coupling, or the second coupling portion 132 and the first clearance groove 111 which are not in contact with each other conduct electric energy by means of coupling. The connection part 133 is connected between the first and second coupling parts 131 and 132, and conducts electric energy to the first and second coupling parts 131 and 132, respectively. The feeding portion 134 is bent outward from the edge of the connecting portion 133 near the flange 12. The specific circuit is as follows:
the current of the external power source is conducted to the connection part 133 through the feeding point on the feeding part 134, and conducted to the first and second coupling parts 131 and 132 through the connection part 133, respectively. The first coupling portion 131 is coupled to one of the first gap slots 111 and the second coupling portion 132 is coupled to the other first gap slot 111. The slot lines of the first clearance slot 111 couple to form an electromagnetic wave and propagate all around.
In one embodiment of the present application, referring specifically to fig. 2, feed tab 13 further includes a first open stub portion 135 and a second open stub portion 136. The first open stub portion 135 is connected to one end of the first coupling portion 131 away from the connecting portion 133, and the second open stub portion 136 is connected to one end of the second coupling portion 132 away from the connecting portion 133. The first open stub portion 135 and the second open stub portion 136 are each a rectangular plate-shaped structure. The standing wave can be adjusted by adjusting the length or width of the first open stub portion 135 and the second open stub portion 136. The lengths of the first open-circuit branch node part 135 and the second open-circuit branch node part 136 are respectively 0.1-0.6 times of wavelength, and the widths of the first open-circuit branch node part 135 and the second open-circuit branch node part 136 are respectively less than or equal to 0.2 times of wavelength. The length refers to a direction along the length of the rectangular plate, and the width refers to a direction along the width of the rectangular plate. If this range is not satisfied, impedance mismatch is likely to occur, and the standing wave becomes too large. In particular applications, the length of the first open leg segment 135 is 0.1, 0.2, 0.3, 0.4, 0.5, or 0.6 wavelengths. The second open stub portion 136 has a length of 0.1, 0.2, 0.3, 0.4, 0.5, or 0.6 wavelengths. The width of the first open branch section 135 is 0.1 times or 0.2 times the wavelength, and the width of the second open branch section 136 is 0.1 times or 0.2 times the wavelength.
In an embodiment of the present invention, referring specifically to fig. 2, the standing wave and isolation of the radiating element 1 can be adjusted by adjusting the length and width of the connecting portion 133 of the feed tab 13. The connecting portion 133 is also a rectangular plate-shaped structure, the length of the connecting portion 133 is less than or equal to 0.25 times the wavelength, and the width of the connecting portion 133 is less than or equal to 0.1 times the wavelength. The length refers to a direction along the length of the rectangular plate, and the width refers to a direction along the width of the rectangular plate. If the impedance mismatch is not satisfied, the standing wave is too large. In a specific application, the length of the connection portion 133 is 0.1, 0.15, 0.2 or 0.25 times the wavelength, and the width of the connection portion 133 is 0.05 or 0.1 times the wavelength. And can be selected according to specific requirements.
In an embodiment of the present invention, referring specifically to fig. 1 and 3, the radiation unit 1 further comprises a cable 14 and a base 15. The cable 14 is disposed on a side of the radiation platform 11 away from the feeding portion 134, and the cable 14 is electrically connected to a feeding point of the feeding portion 134. The base 15 is disposed on a side of the radiation platform 11 away from the feeding portion 134, and is used for supporting the radiation platform 11. Specifically, the electric energy is transmitted to the feeding point of the feeding section 134 through the cable 14, and is transmitted to the first and second coupling sections 131 and 132 by the feeding section 134 through the connection section 133, respectively.
The embodiment of the utility model provides a communication antenna is still provided, specifically refer to FIG. 4, and this communication antenna includes radiating element 1 in above-mentioned arbitrary embodiment, and wherein this radiating element 1 is low frequency radiating element 1, can work between low frequency 617MHZ ~ 960 MHZ. The communication antenna further comprises a first high-frequency radiation element 2, wherein the first high-frequency radiation element 2 is arranged on the radiation unit 1, namely on the radiation platform 11, and the first high-frequency radiation element 2 is coaxial with the radiation unit 1. The first high-frequency radiating element 2 and the radiating unit 1 are coaxially arranged, so that the width of the antenna can be reduced, and the width is only 500mm under the frequency band of 617 MHZ-960 MHA.
It should be noted that the folded edge 12 is not limited to the above-mentioned sealing structure, that is, the folded edge 12 is a complete plate-shaped structure, and of course, in other embodiments, a hollowed-out structure is distributed on the folded edge 12, for example, a part of the folded edge 12 is cut. On the one hand, the weight of the radiating element 1 can be reduced, and on the other hand, the coupling between high frequency and low frequency can be weakened, thereby avoiding affecting the performance of the communication antenna.
In this example, further referring to fig. 5, the communication antenna further includes a reflection plate 3 and a plurality of second high-frequency radiation elements 4. Wherein, a plurality of radiation units 1 are arranged on the reflecting plate 3 in an array; a plurality of second high-frequency radiation elements 4 are arrayed on the reflection plate 3, wherein at least one second high-frequency radiation element 4 is provided between two adjacent radiation units 1.
Specifically, the reflection plate 3 includes a first section 31, a second section 32, a third section 33, and a fourth section 34 arranged in parallel. The first section 31 and the fourth section 34 are both provided with a second high-frequency radiating element 4 and a low-frequency radiating unit 1, the low-frequency radiating unit 1 and the first high-frequency radiating element 2 are coaxially arranged, and the second high-frequency radiating element 4 is arranged between two adjacent low-frequency radiating units 1; the second and third sections 32 and 33 are each provided with the second high-frequency radiation elements 4 arranged in an array. I.e. four columns for high frequencies and two columns for low frequencies.
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 radiation unit comprises a radiation platform and a feed sheet, wherein the periphery of the radiation platform is turned up towards the same side to form a plurality of folded edges, the feed sheet is arranged on the radiation platform, and the folded edges are distributed at intervals around the feed sheet.
2. The radiating element of claim 1, wherein the first clearance slot and the second clearance slot are each a rectangular slot structure, the second clearance slot being perpendicular to the first clearance slot.
3. The radiation unit according to claim 1, wherein the radiation platform is provided with a plurality of first clearance grooves, and the first clearance grooves are circumferentially distributed at equal intervals;
the number of the feed pieces is multiple, each feed piece is arranged corresponding to two opposite first clearance grooves, and the feed pieces are intersected;
between two adjacent feed plates, the feed plate close to the radiation platform is provided with a concave part, the concave part is positioned at the intersection of two adjacent feed plates, and the concave part is concave towards the direction of the radiation platform; alternatively, the first and second electrodes may be,
between two adjacent feed pieces, keep away from radiation platform feed piece has the bellying, the bellying is located two adjacent the crossing department of feed piece, just the bellying is towards keeping away from radiation platform's direction is protruding.
4. The radiating element of claim 3, wherein the feed tab comprises:
the first coupling part is arranged corresponding to one of the first clearance grooves;
the second coupling part is arranged corresponding to the other opposite first clearance groove;
a connecting portion connected between the first coupling portion and the second coupling portion; and
and the feeding part is bent and extended outwards from the edge of the connecting part, which is close to the folded edge.
5. The radiating element of claim 4, wherein: the feed tab further includes:
the first open-circuit branch joint part is connected with one end, far away from the connecting part, of the first coupling part; and
the second open-circuit branch joint part is connected with one end, far away from the connecting part, of the second coupling part;
the first open-circuit branch node part and the second open-circuit branch node part are of rectangular plate structures, and the lengths of the first open-circuit branch node part and the second open-circuit branch node part are respectively 0.1-0.6 times of wavelength; the widths of the first open stub portion and the second open stub portion are less than or equal to 0.2 times of the wavelength.
6. The radiating element of claim 4, wherein: the length of the connecting part is less than or equal to 0.25 times of wavelength, and the width of the connecting part is less than or equal to 0.1 times of wavelength.
7. The radiating element of any one of claims 4 to 6, wherein: the groove width of the first clearance groove is 2 mm-4 mm, and the length of the first clearance groove is less than or equal to 0.25 times of wavelength.
8. The radiating element of claim 7, wherein: the radiation unit further includes:
the cable is arranged on one side, far away from the feed part, of the radiation platform and is electrically connected with a feed point of the feed part; and
the base is arranged on one side, far away from the feeding portion, of the radiation platform and used for supporting the radiation platform.
9. A communication antenna comprising the radiating element of any one of claims 1 to 8, wherein the radiating element is a low frequency radiating element, and further comprising:
and the first high-frequency radiating element is arranged on the radiating unit and is coaxial with the radiating unit.
10. The communications antenna of claim 9, further comprising:
the reflecting plate is provided with a plurality of radiating element arrays;
the plurality of second high-frequency radiating elements are arranged on the reflecting plate in an array mode, and at least one second high-frequency radiating element is arranged between every two adjacent radiating units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020321936.5U CN211929697U (en) | 2020-03-13 | 2020-03-13 | Radiation unit and communication antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020321936.5U CN211929697U (en) | 2020-03-13 | 2020-03-13 | Radiation unit and communication antenna |
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| CN211929697U true CN211929697U (en) | 2020-11-13 |
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| CN202020321936.5U Active CN211929697U (en) | 2020-03-13 | 2020-03-13 | Radiation unit and communication antenna |
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