Micro base station double-frequency miniaturized antenna
By employing coaxially arranged low-frequency and high-frequency vibrators, microstrip phase shifters to adjust the tilt angle, and optimizing the layout in micro base station antennas, the problems of large size and high cost of micro base station antennas have been solved, achieving miniaturization and cost reduction while improving performance.
Patent Information
- Application Number
- CN202520142506.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Existing micro base station antennas suffer from large size and high manufacturing cost, making it difficult to achieve miniaturization while ensuring performance.
Design a dual-band miniaturized antenna for micro base stations. A reflector, a low-frequency power divider, and a high-frequency power divider are respectively mounted on the front and back of the reflector. The low-frequency and high-frequency elements are arranged coaxially. The tilt angle is adjusted by a microstrip phase shifter, eliminating the need for coaxial cables. PCB boards and die-cast parts are used, and the element spacing and layout are optimized.
This achieved antenna miniaturization, reduced production costs and installation difficulty, improved gain and isolation, and ensured stable performance.
Smart Images
Figure CN223729033U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to antenna engineering technical field, especially in a kind of micro base station dual-frequency miniaturized antenna. BACKGROUND
[0002] Micro base station antenna is mainly used in small base station in 5G network, with small size, high integration, strong flexibility and other characteristics, suitable for indoor, outdoor and specific area depth coverage. Its design usually adopts multi-band, high gain, directional transmission technology.
[0003] With the increasing application scenarios of micro base station antenna, under the premise of ensuring the use performance of micro base station antenna, reducing its installation volume and manufacturing cost becomes the main research direction of current industry.
[0004] Therefore, in view of the deficiencies of the prior art, it is necessary to design a micro base station dual-frequency miniaturized antenna to solve the above problems.
[0005] It should be noted that the above introduction to the technical background is only to facilitate the clear and complete description of the technical scheme of the utility model, and to facilitate the understanding of those skilled in the art, and the above content cannot be considered as known by those skilled in the art because the above content is described in the background of the utility model. UTILITY MODEL CONTENT
[0006] In order to overcome the deficiencies in the prior art, the utility model aims to disclose a micro base station dual-frequency miniaturized antenna, which is used to reduce the volume and manufacturing cost of micro base station antenna, and ensure its stable use performance.
[0007] The utility model discloses a micro base station dual-frequency miniaturized antenna, which comprises a reflecting plate, the front and back surfaces of the reflecting plate are respectively attached with a low-frequency power divider and a high-frequency power divider, a low-frequency oscillator is connected to the low-frequency power divider, a high-frequency oscillator is connected to the high-frequency power divider, the low-frequency oscillator and the high-frequency oscillator are coaxially arranged on the same side of the reflecting plate, which effectively reduces the size of the antenna. Microstrip phase shifters are arranged on the low-frequency power divider and the high-frequency power divider, the low-frequency power divider is coupled with the microstrip phase shifter for adjusting the inclination angle of the low-frequency oscillator, and the high-frequency power divider is coupled with the microstrip phase shifter for adjusting the inclination angle of the high-frequency oscillator, without using coaxial cable, thereby reducing the production cost.
[0008] Preferred technical scheme: the low-frequency oscillator is welded on the low-frequency power divider, and the high-frequency oscillator is welded on the high-frequency power divider, which reduces the installation difficulty.
[0009] Preferred technical scheme: the low-frequency power divider is a low-frequency one-to-three power divider, the high-frequency power divider is a high-frequency one-to-three power divider, and the number of low-frequency oscillators and high-frequency oscillators is three, which reduces the installation loss of low-frequency oscillators and high-frequency oscillators, and improves the isolation between the oscillators.
[0010] The low-frequency oscillators and the high-frequency oscillators are arranged with different intervals, the amplitude and phase of the unit are changed, and the performance indexes such as the gain of the antenna are improved.
[0011] The low-frequency oscillators and the high-frequency oscillators are arranged with different intervals, the amplitude and phase of the unit are changed, and the performance indexes such as the gain of the antenna are improved.
[0012] The low-frequency oscillators and the high-frequency oscillators are arranged with different intervals, the amplitude and phase of the unit are changed, and the performance indexes such as the gain of the antenna are improved.
[0013] The low-frequency oscillators and the high-frequency oscillators are arranged with different intervals, the amplitude and phase of the unit are changed, and the performance indexes such as the gain of the antenna are improved.
[0014] The low-frequency oscillators and the high-frequency oscillators are arranged with different intervals, the amplitude and phase of the unit are changed, and the performance indexes such as the gain of the antenna are improved.
[0015] The low-frequency oscillators and the high-frequency oscillators are arranged with different intervals, the amplitude and phase of the unit are changed, and the performance indexes such as the gain of the antenna are improved.
[0016] 1) The low-frequency power division plate and the high-frequency power division plate are arranged on the front and back surfaces of the reflecting plate respectively, and the layout space is saved.
[0017] 2) The low-frequency oscillators and the high-frequency oscillators are coaxially arranged, and the horizontal size of the antenna is reduced.
[0018] 3) The low-frequency oscillators adopt the PCB plate and are provided with the filtering branch, and the influence on the coverage of the high-frequency oscillators is reduced.
[0019] 4) The oscillators are directly welded on the power division plate, the microstrip phase shifter is coupled with the power division plate to adjust the inclination angle, coaxial cables are not used, and the cost is reduced.
[0020] 5) The low-frequency oscillators and the high-frequency oscillators are arranged with different intervals, the amplitude and phase of the unit are changed, and the performance indexes such as the gain of the antenna are improved. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the following specific embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0022] Figure 1 It is an isometric view of the micro base station dual-frequency miniaturized antenna.
[0023] Figure 2 is a top view of the micro base station dual-frequency miniaturized antenna of the utility model;
[0024] Figure 3 is a bottom view of the micro base station dual-frequency miniaturized antenna of the utility model.
[0025] In the above drawings, 1, reflector plate; 2, low-frequency power splitter plate; 3, high-frequency power splitter plate; 4, low-frequency oscillator; 5, high-frequency oscillator; 6, microstrip phase shifter. DETAILED DESCRIPTION
[0026] The following specific embodiments illustrate the embodiments of the utility model, and those skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification.
[0027] It should be noted that the terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so as to describe the embodiments of the present application. In addition, the terms "include" and "have" and their synonyms are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.
[0028] In the present application, the terms "up", "down", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.
[0029] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned part of the terms may also be used to indicate other meanings, for example, the term "up" may also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the utility model can be understood according to the specific circumstances.
[0030] In addition, the terms "mounting", "arrangement", "provided with", "connection", "connected", "sleeved", and "attached" should be interpreted broadly. For example, "connection" can be fixed connection, detachable connection, or integral structure; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium, or internal connection between two devices, elements, or components. For example, "attached" can be complete attachment or partial attachment. Those skilled in the art can understand the specific meanings of the above terms in the utility model according to specific circumstances.
[0031] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with embodiments.
[0032] Embodiment:
[0033] As shown in Figure 1 , Figure 2 and Figure 3 , the utility model discloses a kind of micro base station dual-frequency miniaturized antennas, including a reflector plate 1, the front and back of reflector plate 1 is attached with low-frequency power divider 2 and high-frequency power divider 3 respectively, low-frequency power divider 2 is connected with low-frequency oscillator 4, high-frequency power divider 3 is connected with high-frequency oscillator 5, low-frequency oscillator 4 and high-frequency oscillator 5 are located at the same side of reflector plate 1 and coaxially arranged;Low-frequency power divider 2 and high-frequency power divider 3 are all equipped with microstrip phase shifter 6, low-frequency power divider 2 is coupled with microstrip phase shifter 6 for adjusting the inclination of low-frequency oscillator 4;High-frequency power divider 3 is coupled with microstrip phase shifter 6 for adjusting the inclination of high-frequency oscillator 5.By the attachment of reflector plate 1, low-frequency power divider 2 and high-frequency power divider 3, layout space is saved;By coaxially arranging low-frequency oscillator 4 and high-frequency oscillator 5, the transverse dimension of antenna is reduced;And make antenna cover work in two frequency bands and have blind spot compensation function.Use microstrip phase shifter 6 to couple with power divider to adjust inclination, without using coaxial cable, reduce the network and operation cost of operator.
[0034] As shown in Figure 1 , Figure 2 and Figure 3 , to reduce installation difficulty, low-frequency oscillator 4 and high-frequency oscillator 5 only need to be inserted into the corresponding hole position of low-frequency power divider 2 and high-frequency oscillator 5 for welding and fixing, simple operation and stable connection.
[0035] As shown in Figure 1 , Figure 2 and Figure 3 , to ensure the performance of antenna, low-frequency power divider 2 is low-frequency one-to-three power divider, high-frequency power divider 3 is high-frequency one-to-three power divider, and the number of low-frequency oscillator 4 and high-frequency oscillator 5 is three. Reduce the installation loss of low-frequency oscillator 4 and high-frequency oscillator 5, improve the isolation between oscillators.
[0036] As Figure 1 , Figure 2 and Figure 3 indicated, to ensure the performance of the antenna, the low-frequency vibrator 4 and the high-frequency vibrator 5 are arranged with different intervals.
[0037] As Figure 1 , Figure 2 and Figure 3 indicated, to further ensure the performance of the antenna, the interval of the low-frequency vibrator 4 is 0.65λ1 and 0.75λ1 respectively, λ1 is the center wavelength of the low frequency; the interval of the high-frequency vibrator 5 is 0.5λ2 and 0.85λ2 respectively, λ2 is the center wavelength of the high frequency; the width of the reflector 1 is 0.75λ1. A narrower beam width and higher gain are provided, and the ratio of the antenna level in the maximum radiation direction (forward) to the level in the opposite direction (backward) is ensured.
[0038] As Figure 1 , Figure 2 and Figure 3 indicated, to further ensure the performance of the antenna, the main body of the low-frequency vibrator 4 is a PCB board; the main body of the high-frequency vibrator 5 is any one of a PCB board, a die casting and a sheet metal part.
[0039] As Figure 1 , Figure 2 and Figure 3 indicated, to further ensure the performance of the antenna, a filter branch is arranged on the low-frequency vibrator 4 to reduce the coverage influence on the high-frequency vibrator 5.
[0040] Finally, it should be noted that the above is only the preferred embodiment of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A micro base station dual-band miniaturized antenna comprising a reflector plate (1), characterized in that: The low-frequency power divider (2) and the high-frequency power divider (3) are respectively attached to the front and back surfaces of the reflecting plate (1), the low-frequency vibrator (4) is connected to the low-frequency power divider (2), the high-frequency vibrator (5) is connected to the high-frequency power divider (3), the low-frequency vibrator (4) and the high-frequency vibrator (5) are located at the same side of the reflecting plate (1) and coaxially arranged; the low-frequency power divider (2) and the high-frequency power divider (3) are both provided with a microstrip phase shifter (6), the low-frequency power divider (2) is coupled with the microstrip phase shifter (6) for adjusting the inclination angle of the low-frequency vibrator (4); the high-frequency power divider (3) is coupled with the microstrip phase shifter (6) for adjusting the inclination angle of the high-frequency vibrator (5).
2. The dual-band compact antenna for a micro base station according to claim 1, wherein: The low-frequency vibrator (4) is welded on the low-frequency power divider (2), and the high-frequency vibrator (5) is welded on the high-frequency power divider (3).
3. The dual-band compact antenna of claim 2, wherein: The low-frequency power divider (2) is a low-frequency one-to-three power divider, the high-frequency power divider (3) is a high-frequency one-to-three power divider, and the number of the low-frequency vibrator (4) and the high-frequency vibrator (5) is both three.
4. The dual-band compact antenna of claim 3, wherein: The low-frequency vibrator (4) and the high-frequency vibrator (5) are arranged with different intervals.
5. The dual-band compact antenna of a micro base station according to claim 4, wherein: The interval of the low-frequency vibrator (4) is 0.65λ1 and 0.75λ1 respectively, and λ1 is the low-frequency central wavelength; the interval of the high-frequency vibrator (5) is 0.5λ2 and 0.85λ2 respectively, and λ2 is the high-frequency central wavelength.
6. The dual-band compact antenna of a micro base station according to claim 5, wherein: The width of the reflecting plate (1) is 0.75λ1.
7. The dual-band compact antenna of a micro base station according to claim 1, wherein: The main body of the low-frequency vibrator (4) adopts a PCB board; the main body of the high-frequency vibrator (5) adopts any one of a PCB board, a die casting and a sheet metal part.
8. The dual-band compact antenna of a micro base station according to claim 1, wherein: The low-frequency vibrator (4) is provided with a filter branch.