Antenna and base station
By setting the second radiation member in the radome and fixing it with grooves, the problems of antenna complexity and cost are solved, and the effect of simplifying production and increasing bandwidth is achieved.
Patent Information
- Application Number
- CN202420109422.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-16
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-16
AI Technical Summary
When using double-layer structure oscillators in existing antennas, they need to fix the radiation sheets through plastic parts, which increases assembly complexity and structural complexity, resulting in high production costs.
By placing the second radiator in the radome and fixing it using the accommodating cavity and groove of the radome, the number of parts is reduced, fixing without additional support is achieved, the production process is simplified, and the first radiation is passed The coordination between the component and the second radiating component makes the antenna unit work at two resonant frequency points, increasing the bandwidth.
Reduces the complexity and production costs of the antenna, simplifies the assembly process, and improves the bandwidth and applicability of the antenna.
Smart Images
Figure CN222191134U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of communication technology, and specifically relates to an antenna and a base station. Background Art
[0002] With the advent of the mobile communication era, communication equipment has increasingly higher requirements for antenna performance indicators. In addition, due to the need to deploy a large number of base stations, the demand for antennas is very large. Making the production and assembly of antennas simpler and more efficient plays an important role in effectively reducing antenna costs.
[0003] In base station antennas, double-layer antenna elements are often used to increase the bandwidth of the antenna and improve the impedance. However, when using the element form, there is a problem, that is, it is necessary to consider how to fix the upper radiator. In the related art, plastic parts are used to fix the upper radiator and the antenna array. However, this fixing method will increase the antenna assembly process and increase the complexity of the overall antenna structure. Utility Model Content
[0004] The purpose of the embodiments of the present application is to provide an antenna and a base station, which can solve the problems of increasing assembly and structural complexity in current antennas that use plastic parts to fix the upper radiation plate.
[0005] In order to solve the above technical problems, this application is implemented as follows:
[0006] An embodiment of the present application provides an antenna, including:
[0007] A radome, wherein the radome has a receiving cavity;
[0008] A circuit board, wherein the circuit board is arranged in the accommodating cavity;
[0009] A feeding network, wherein the feeding network is arranged on the circuit board;
[0010] The antenna unit comprises a first radiating element and a second radiating element, wherein the second radiating element is arranged on the antenna cover and is coupled with the first radiating element for power feeding.
[0011] In the embodiment of the present application, by arranging the second radiating element on the antenna cover, the second radiating element can be fixed without the need for additional supporting members, thereby reducing the number of components, reducing the complexity of the antenna, and making the production of the antenna simpler, facilitating automated mass production, and effectively reducing the cost of mass production; in addition, through the coordination of the first radiating element and the second radiating element, the antenna unit can operate at two resonant frequency points, which can effectively increase the bandwidth of the antenna and improve the applicability of the antenna. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1A schematic diagram of the structure of the antenna disclosed in the embodiment of the present application;
[0013] Figure 2 A schematic diagram of a second radiating element and a radome in a first configuration according to an embodiment of the present application;
[0014] Figure 3 A schematic diagram of a second radiating element and a radome in a second configuration according to an embodiment of the present application;
[0015] Figure 4 A schematic diagram of a third arrangement of the second radiating element and the radome disclosed in an embodiment of the present application;
[0016] Figure 5 It is a schematic diagram of a first elastic locking protrusion provided on the bottom wall of a groove disclosed in an embodiment of the present application;
[0017] Figure 6 It is a schematic diagram of a second elastic protrusion provided on a side wall of a groove disclosed in an embodiment of the present application;
[0018] Figure 7 This is a schematic diagram of a circuit board, a first radiating element, and a feeding network disclosed in an embodiment of the present application.
[0019] Description of reference numerals:
[0020] 100-radome; 110-groove; 120-first elastic protrusion; 130-second elastic protrusion; 140-convex column;
[0021] 200-circuit board;
[0022] 300-feeding network;
[0023] 400 - antenna unit; 410 - first radiating element; 420 - second radiating element. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0025] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.
[0026] The embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.
[0027] refer to Figures 1 to 7 An embodiment of the present application discloses an antenna, which includes a radome 100 , a circuit board 200 , a feeding network 300 and an antenna unit 400 .
[0028] The antenna cover 100 is a basic mounting component, which can provide an installation space for components such as a circuit board 200, a feed network 300, and an antenna unit 400. The antenna cover 100 protects components such as the circuit board 200, the feed network 300, and the antenna unit 400 to prevent the external environment from damaging the circuit board 200, the feed network 300, the antenna unit 400, etc. or interfering with the normal operation of the antenna.
[0029] In some embodiments, the radome 100 has a receiving cavity. Optionally, the radome 100 may include a cover shell and a cover plate, the cover shell has an opening, and the cover plate is openably and closably arranged at the opening to facilitate maintenance of the circuit board 200, the feed network 300, the antenna unit 400, etc. located in the receiving cavity. It should be noted here that the embodiments of the present application Figures 1 to 6 The structure pointed by the arrow 100 may be understood as a local area of the radome 100 , and does not represent the entire radome 100 , but is merely for illustration.
[0030] The circuit board 200 is disposed in the accommodating cavity. Specifically, the circuit board 200 can be fixedly connected to the inner wall of the antenna cover 100 to ensure the stability of the circuit board 200, and the antenna cover 100 plays a protective role on the circuit board 200.
[0031] In other embodiments, the antenna cover 100 may include a cover shell with an opening, and the cover shell is buckled onto the surface of the circuit board 200 and fixed to protect the electrical components on the circuit board 200 and to achieve a fixed connection between the circuit board 200 and the antenna cover 100.
[0032] The feed network 300 is provided on the circuit board 200 and is electrically connected to the antenna unit 400 to achieve signal transmission between the feed network 300 and the antenna unit 400. Exemplarily, a receiving groove may be provided on the surface of the circuit board 200, and the feed network 300 may be provided in the receiving groove to ensure the stability of the feed network 300. Of course, the feed network 300 may also be fastened to the surface of the circuit board 200 by other fasteners, and this method can also ensure the stability of the feed network 300.
[0033] In the embodiment of the present application, the antenna unit 400 includes a first radiating element 410 and a second radiating element 420, which can be coupled and fed to facilitate signal transmission. It should be noted that the principle of coupled feeding can refer to the prior art and will not be elaborated here.
[0034] Furthermore, the second radiating element 420 is disposed on the radome 100 , so that the second radiating element 420 is fixed by the radome 100 , thereby ensuring the stability of the second radiating element 420 .
[0035] In addition, the first radiator 410 can be disposed on the circuit board 200 and electrically connected to the feed network 300, so that the first radiator 410 can be fixed by the circuit board 200 to ensure the stability of the first radiator 410. In addition, the first radiator 410 is electrically connected to the feed network 300, so that signals can be transmitted between the first radiator 410 and the feed network 300.
[0036] Optionally, the first radiating element 410 and the second radiating element 420 are arranged opposite to each other and spaced apart to form a double-layer structure of the antenna unit 400 to increase the bandwidth of the antenna and improve the impedance.
[0037] Based on the above settings, when the signal is transmitted to the feeding network 300, it can be transmitted to the antenna unit 400 via the feeding network 300, so that the signal reaches the first radiating element 410 and the second radiating element 420 respectively, so that the antenna unit 400 can operate at two resonant frequencies to increase the bandwidth of the antenna.
[0038] In the embodiment of the present application, by arranging the second radiating element 420 on the antenna cover 100, the second radiating element 420 can be fixed without the need for additional supporting members, thereby reducing the number of components, reducing the complexity of the antenna, and making the production of the antenna simpler, facilitating automated mass production, and effectively reducing the cost of mass production; in addition, through the cooperation of the first radiating element 410 and the second radiating element 420, the antenna unit 400 can operate at two resonant frequency points, which can effectively increase the bandwidth of the antenna and improve the applicability of the antenna.
[0039] In order to arrange the second radiation element 420 on the radome 100, refer to Figure 2 In some embodiments, the outer surface of the radome 100 may be provided with a groove 110, and the second radiator 420 may be disposed in the groove 110. Based on this configuration, the second radiator 420 may be accommodated by the groove 110, and the side wall of the groove 110 may protect the second radiator 420, thereby preventing the second radiator 420 from being damaged by collision or other factors.
[0040] Exemplarily, the size, depth, shape, etc. of the groove 110 can be set with reference to the second radiation element 420 , and the specific form is not limited as long as the installation of the second radiation element 420 can be guaranteed.
[0041] Furthermore, considering that the external environment may interfere with or damage the second radiating element 420, a slot cover can be provided at the slot of the groove 110. The slot cover can be opened or closed to facilitate the disassembly and assembly of the second radiating element 420, and can also cover the second radiating element 420 to prevent the external environment from directly contacting the second radiating element 420 and causing interference or damage to the second radiating element 420.
[0042] refer to Figure 3 In other embodiments, the inner surface of the radome 100 may be provided with a groove 110, and the second radiator 420 may be provided in the groove 110. Based on this configuration, the second radiator 420 may be accommodated by the groove 110, and the side wall of the groove 110 may protect the second radiator 420, thereby preventing the second radiator 420 from being damaged by collision or other factors.
[0043] Exemplarily, the size, depth, shape, etc. of the groove 110 can be set with reference to the second radiation element 420 , and the specific form is not limited as long as the installation of the second radiation element 420 can be guaranteed.
[0044] Similarly, considering that the internal environment of the antenna cover 100 may interfere with or damage the second radiating element 420, a slot cover can be provided at the notch of the groove 110. The slot cover can be opened or closed to facilitate the disassembly and assembly of the second radiating element 420, and can also cover the second radiating element 420 to prevent the internal environment from directly contacting the second radiating element 420 and causing interference or damage to the second radiating element 420.
[0045] refer to Figure 4In other embodiments, the second radiating element 420 may also be located inside the radome 100. Specifically, the second radiating element 420 is provided inside the radome 100 by injection molding. Based on this arrangement, the second radiating element 420 may be located inside the radome 100 during the process of injection molding the radome 100. After molding, the second radiating element 420 is completely wrapped inside the radome 100, thereby protecting the second radiating element 420 and preventing the second radiating element 420 from being disturbed or damaged. In this way, the second radiating element 420 and the radome 100 may be integrated into one structure.
[0046] It should be noted here that the antenna cover 100 can be made of plastic, such as polycarbonate (ie, PC), etc. Of course, other materials can also be used, which are not specifically limited here.
[0047] Among the above three methods, compared with the method in which the second radiating element 420 is located outside the antenna cover 100, the second radiating element 420 is located inside the antenna cover 100, which can effectively reduce the overall cross-sectional size of the antenna and is conducive to reducing the volume of the antenna.
[0048] When the second radiation element 420 is disposed in the groove 110 , in order to prevent the second radiation element 420 from accidentally leaving the groove 110 , the second radiation element 420 may be limited to prevent it from accidentally leaving the groove 110 .
[0049] refer to Figure 5 In one embodiment, a protrusion 140 may be provided on the bottom wall of the groove 110, and a first elastic protrusion 120 may be provided on one end of the protrusion 140 away from the bottom wall. For example, the first elastic protrusion 120 may be located on the side wall of the protrusion 140, or may be located on the end of the protrusion 140. Accordingly, the second radiation member 420 may be provided with a through hole, the protrusion 140 is passed through the through hole, and the first elastic protrusion 120 abuts against the surface of the second radiation member 420 away from the bottom wall.
[0050] Based on the above arrangement, the second radiation member 420 can be guided and positioned by the cooperation between the boss 140 and the through hole, so as to prevent the second radiation member 420 from being offset when placed in the groove 110, and effectively improve the position accuracy of the second radiation member 420 placed in the groove 110. In addition, when the boss 140 penetrates into the through hole, the first elastic protrusion 120 can produce elastic deformation. When the first elastic protrusion 120 passes through the through hole, the first elastic protrusion 120 expands outward under the action of elastic force, so that the end face of the first elastic protrusion 120 protrudes from the hole wall of the through hole, and then the first elastic protrusion 120 can abut against the surface of the second radiation member 420 away from the bottom wall, thereby ensuring the overall stability of the second radiation member 420.
[0051] For example, the first elastic protrusion 120 may be in a herringbone shape, a T-shape, an umbrella shape, etc. Of course, it may also be in other shapes, which are not specifically limited here. In addition, the side wall of the boss 140 may be provided with a plurality of first elastic protrusions 120, and the stability of the second radiating element 420 may be improved by squeezing the second radiating element 420 with the plurality of first elastic protrusions 120.
[0052] refer to Figure 6 Another embodiment is: the side wall of the groove 110 can be provided with a plurality of second elastic protrusions 130, and the plurality of second elastic protrusions 130 are arranged along the circumference of the groove 110, and each second elastic protrusion 130 abuts against the surface of the second radiation element 420 away from the bottom wall of the groove 110.
[0053] Based on the above configuration, when the second radiating element 420 is installed in the groove 110, a plurality of second elastic protrusions 130 can squeeze the second radiating element 420 to limit the second radiating element 420, thereby ensuring the stability of the second radiating element 420 in the groove 110 and preventing the second radiating element 420 from detaching from the groove 110.
[0054] It should be noted here that when installing or removing the second radiating element 420, the edge of the second radiating element 420 will squeeze the multiple second elastic protrusions 130, causing each second elastic protrusion 130 to elastically deform, thereby increasing the space between the multiple second elastic protrusions 130, so that the second radiating element 420 can pass through the space between the multiple second elastic protrusions 130 and enter the groove 110; when the second radiating element 420 enters the groove 110, each second elastic protrusion 130 elastically returns to its original position to reduce the space between the multiple second elastic protrusions 130, thereby preventing the second radiating element 420 from escaping the groove 110.
[0055] refer to Figures 1 to 7 In some embodiments, the antenna may include a plurality of antenna units 400, and the plurality of antenna units 400 are arranged in a single row. In addition, the feed network 300 may be electrically connected to the first radiating elements 410 of the plurality of antenna units 400, so that the power is distributed to each antenna unit 400 through the feed network 300 according to a certain power distribution ratio and phase according to the need of shaping, and finally transmitted through each antenna unit 400.
[0056] Furthermore, the plurality of antenna units 400 may be arranged at equal distances from each other. For example, the distance between two adjacent antenna units 400 may be 0.7 to 0.8 times of the working wavelength.
[0057] Exemplarily, the antenna may include three antenna units 400 arranged in a single row. Of course, other numbers of antenna units 400 may also be included, depending on actual working conditions.
[0058] In addition, the frequencies of the electromagnetic waves generated by the multiple antenna units 400 are not exactly the same. In this way, electromagnetic wave signals in different frequency bands can be simultaneously transmitted and covered by multiple antenna units 400 to achieve simultaneous coverage of multi-frequency signals, thereby saving the construction cost of antennas and even base stations.
[0059] In other embodiments, the frequencies of the electronic waves generated by the multiple antenna units 400 may be the same.
[0060] In some embodiments, the feeding network 300 may be implemented in the form of a microstrip line or a stripline transmission line.
[0061] Based on the above antenna, an embodiment of the present application further discloses a base station, and the disclosed base station includes the above antenna.
[0062] In summary, the embodiment of the present application realizes the integration of the second radiating element 420 and the antenna cover 100, which makes the assembly and production of the antenna simpler, which is beneficial to improving production efficiency and reducing the cost of mass production; and it also effectively reduces the overall cross-sectional size of the antenna, making the antenna more miniaturized, which is beneficial to improving product competitiveness; by adopting a double-layer structure, the antenna unit 400 can operate at two resonant frequency points, which is beneficial to increasing the bandwidth of the antenna.
[0063] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.
Claims
1. An antenna, characterized in that: include: A radome (100), wherein the radome (100) has a containing cavity; A circuit board (200), wherein the circuit board (200) is arranged in the accommodating cavity; A feeding network (300), the feeding network (300) being arranged on the circuit board (200); An antenna unit (400) comprises a first radiating element (410) and a second radiating element (420), wherein the second radiating element (420) is disposed on the antenna cover (100) and is coupled with the first radiating element (410) for feeding.
2. The antenna according to claim 1, characterized in that The outer surface of the antenna cover (100) is provided with a groove (110), and the second radiation element (420) is arranged in the groove (110).
3. The antenna according to claim 1, characterized in that The inner surface of the antenna cover (100) is provided with a groove (110), and the second radiation element (420) is arranged in the groove (110).
4. The antenna according to claim 2 or 3, characterized in that: The bottom wall of the groove (110) is provided with a convex column (140), and one end of the convex column (140) facing away from the bottom wall is provided with a first elastic locking protrusion (120); The second radiation member (420) is provided with a through hole, the convex column (140) is passed through the through hole, and the first elastic locking protrusion (120) abuts against a surface of the second radiation member (420) away from the bottom wall.
5. The antenna according to claim 2 or 3, characterized in that: The side wall of the groove (110) is provided with a plurality of second elastic locking protrusions (130), and the plurality of second elastic locking protrusions (130) are arranged along the circumference of the groove (110); Each of the second elastic latching protrusions (130) abuts against a surface of the bottom wall of the second radiation element (420) that is away from the groove (110).
6. The antenna according to claim 1, characterized in that The second radiation element (420) is arranged inside the antenna cover (100) by means of injection molding.
7. The antenna according to any one of claims 1 to 3 and 6, characterized in that: The antenna comprises a plurality of antenna units (400), and the plurality of antenna units (400) are arranged in a single row.
8. The antenna according to claim 7, characterized in that: The frequencies of the electromagnetic waves generated by the plurality of antenna units (400) are not completely the same.
9. The antenna according to claim 1, characterized in that: The feeding network (300) adopts a microstrip line or stripline transmission line method.
10. A base station, characterized in that: The invention comprises the antenna according to any one of claims 1 to 9.