Phase shifter and antenna

Abstract

The utility model relates to the technical field of mobile communication equipment, in particular to a phase shifter and an antenna. Comprising a phase shifter cavity, a sliding block and a sliding rod, an open groove is formed in one side face of the phase shifter cavity in the length direction of the phase shifter cavity, and the sliding block penetrates through the open groove through a lower end connecting part, enters the phase shifter cavity and is connected with a medium assembly; the sliding block is fixedly connected with the sliding rod through an upper end connecting part, a connecting point between the sliding block and the sliding rod serves as a transmission connecting point of an external power source at the same time, a guide structure is arranged on the side face, and the sliding rod is installed on the guide structure and can freely slide in the length direction of the phase shifter cavity. When the sliding rod slides, the sliding block is synchronously driven to slide along the length direction of the open groove so as to drive the medium assembly to move. According to the utility model, the overall length of the phase shifter is effectively reduced, and the problem that the overall length of the antenna is increased due to the fact that the length of the phase shifter exceeds the length of the antenna radiation unit array is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile communication equipment, and in particular to a phase shifter and an antenna. Background Art

[0002] With the global proposal of "carbon peak and carbon neutrality", the upgrading of economic structure is promoted and the development of green and low-carbon industries is promoted. The domestic communications industry has put forward product requirements for "green antennas". Green antennas refer to high-efficiency and environmentally friendly antennas that achieve internal efficiency improvements through innovations in materials, design, and processes, as well as low pollution and low carbon emissions during the life cycle of production, use, and recycling.

[0003] There are two mainstream green antenna solutions for the phase shifter feeding network: Solution 1 is referred to as the "less cable" solution; Solution 2 is referred to as the "no cable" solution. In both solutions, the phase shifter feeding point and the radiating element array have a one-to-one correspondence, and the length of the phase shifter is equivalent to the length of the radiating element array.

[0004] Most of the existing mainstream phase shifters are developed using the "cavity + RF line + sliding medium attached to the upper and lower surfaces of the RF line" solution. A connection interface extends from one end of the phase shifter in the length direction and is placed outside the phase shifter to connect to the transmission components to drive the internal sliding medium to adjust the downward tilt angle.

[0005] However, when this solution of an external connection interface in the length direction of the phase shifter is used on a green antenna, the length of "phase shifter + external connection port + maximum stroke of the phase shifter sliding medium (at the maximum downtilt angle)" will far exceed the length of the antenna radiating unit array, thereby lengthening the overall length of the antenna product. Utility Model Content

[0006] The utility model aims to solve the technical problem existing in the prior art that the length of "phase shifter + external connection port + maximum stroke of phase shifter sliding medium (at maximum downward tilt angle)" far exceeds the length of antenna radiation unit array, thereby lengthening the overall length of the antenna product.

[0007] In order to achieve the purpose of this utility model, the following technical solutions are adopted:

[0008] The first aspect of the utility model provides a phase shifter, including a phase shifter cavity, a slider and a sliding rod, one side of the phase shifter cavity is provided with an open groove along the length direction of the phase shifter cavity, the slider passes through the open groove through the lower end connecting part into the phase shifter cavity and is connected to the medium component, the slider is fixedly connected to the sliding rod through the upper end connecting part and the connection point between the slider and the sliding rod also serves as the transmission connection point of the external power source, a guide structure is provided on the side, the sliding rod is installed on the guide structure and can slide freely along the length direction of the phase shifter cavity, when the sliding rod slides, the slider is synchronously driven to slide along the length direction of the open groove and then the medium component is driven to move.

[0009] A further improvement is that the open groove is arranged at a central position in the length direction of the side surface.

[0010] A further improvement is that the length of the open slot matches the electrical downtilt travel of the phase shifter.

[0011] A further improvement is that the phase shifter cavity is integrally formed by pultrusion of aluminum alloy.

[0012] A further improvement is that the guide structure includes at least two through-hole structures installed on the top of the side surface, the sliding rod is arranged between at least two of the through-hole structures, and the through-hole cross-sectional shape of the through-hole structure matches the cross-sectional shape of the sliding rod to form a clearance fit.

[0013] A further improvement is that at least two of the through hole structures are respectively located at two ends of the open slot in the length direction.

[0014] A further improvement is that the sliding rod is a long strip structure, and its cross-sectional shape is polygonal or circular.

[0015] A further improvement is that the upper end connecting portion of the slider is a threaded hole, the rod body of the sliding rod is provided with a connecting hole, and the slider and the sliding rod are fixedly connected by screws passing through the connecting hole and the threaded hole.

[0016] A further improvement is that the upper end connecting portion of the slider is a latch buckle, a connecting hole is provided on the rod body of the sliding rod, and the slider and the sliding rod are fixedly connected by the latch buckle cooperating with the connecting hole.

[0017] The second aspect of the utility model proposes an antenna, including a reflector, wherein a plurality of groups of radiation unit arrays are arranged on the front side of the reflector, and a plurality of groups of phase shifters are arranged on the back side of the reflector, wherein the phase shifters are a phase shifter as described in any one of the above-mentioned first aspects.

[0018] The beneficial effects of the utility model are:

[0019] The utility model changes the transmission connection point of the traditional phase shifter that extends outward at one end in the length direction to a transmission connection point that is set up at the center position of the length direction of one side of the phase shifter, thereby avoiding the transmission connection point being placed outside one end of the phase shifter, effectively reducing the overall length of the phase shifter, and effectively avoiding the problem of lengthening the overall length of the antenna due to the length of the phase shifter exceeding the length of the antenna radiation unit array.

[0020] The utility model provides a guide structure on the side of the phase shifter cavity, and is close to the transmission connection point, which is beneficial to the stable sliding of the sliding rod and better ensures the stability and reliability of the transmission; and uses the connection point between the slider and the sliding rod as the transmission connection point of the external power source, which is beneficial to the improvement of antenna assembly efficiency, reduces the amount of materials, and reduces assembly time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an exploded view of a phase shifter in Embodiment 1 of the present utility model;

[0022] Figure 2 This is a three-dimensional diagram of the phase shifter cavity in the first embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the slider in the first embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the slider in the second embodiment of the present utility model;

[0025] Figure 5 It is a structural schematic diagram of the sliding rod in the utility model;

[0026] Figure 6 It is a cross-sectional schematic diagram of a phase shifter in the first embodiment of the utility model;

[0027] Figure 7 This is an exploded diagram of a phase shifter in Embodiment 2 of the present utility model;

[0028] Figure 8 This is a three-dimensional diagram of the phase shifter cavity in the second embodiment of the utility model;

[0029] Fig. 9 The figures are front and back views of an antenna using a phase shifter of the utility model.

[0030] Description of reference numerals:

[0031] 100, phase shifter cavity; 110, through hole structure; 120, open slot; 200, slider; 210, upper end connection part; 220, lower end connection part; 300, sliding rod; 310, connection hole; 400, dielectric component; 500, radio frequency circuit; 600, limit block; 700, screw. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model and do not limit the protection scope of the utility model.

[0033] It should be noted that when an element is referred to as being "fixed to", "disposed on", "fixed on" or "installed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. Furthermore, when an element is considered to be "transmission-connected" to another element, the two can achieve power transmission, and its specific implementation method can be implemented using the existing technology, which will not be repeated here. When an element is perpendicular or approximately perpendicular to another element, it means that the ideal state of the two is vertical, but due to the influence of manufacturing and assembly, there may be a certain vertical error. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only and do not represent the only implementation method.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0035] The “first” and “second” involved in the present utility model do not represent specific quantities and orders, but are merely used to distinguish names.

[0036] Embodiment 1:

[0037] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Fig. 9 As shown, in a first aspect of the first embodiment of the present invention, a phase shifter is provided, such as Figure 1 , Figure 2 , Figure 6 As shown, the phase shifter includes a phase shifter cavity 100, a slider 200 and a sliding rod 300. A radio frequency circuit 500, a dielectric component 400 and a stop block 600 are arranged inside the phase shifter cavity 100. An open groove 120 is arranged on one side of the phase shifter cavity 100 along the length direction of the phase shifter cavity 100. The slider 200 passes through the open groove 120 through the lower end connecting portion 220 to enter the phase shifter cavity 100 and is connected to the dielectric component 400. The slider 200 is fixedly connected to the sliding rod 300 through the upper end connecting portion 210 and the slider 200 is connected to the sliding rod 300. The connection point between the rods 300 also serves as a transmission connection point of an external power source (not shown in the figure). The external power source drives the phase shifter to adjust the electrical tilt angle through the transmission connection point. A guide structure is provided on the side surface. The sliding rod 300 is installed on the guide structure and can slide freely along the length direction of the phase shifter cavity 100. When the sliding rod 300 slides, it synchronously drives the slider 200 to slide along the length direction of the open groove 120 and then drives the medium component 400 to move. That is, after the slider 200 and the sliding rod 300 are fixedly connected, they can synchronously slide along the length direction of the phase shifter cavity 100.

[0038] In this embodiment, if Figure 2 As shown, the side surface of the phase shifter cavity 100 where the open slot 120 is located is a side surface perpendicular to the dielectric component 400 .

[0039] Preferably, the guide structure on the phase shifter cavity 100 is located higher than the upper end surface of the slider 200 , so that the sliding rod 300 is located above the slider 200 .

[0040] In this embodiment, the open slot 120 is arranged at the center position in the length direction of the side surface, and the length of the open slot 120 matches the electrical downward tilt stroke of the phase shifter, that is, the dielectric component 400 and the RF circuit 500 are always located inside the phase shifter cavity 100 during the sliding process.

[0041] In this embodiment, the phase shifter cavity 100 is integrally formed by pultrusion of aluminum alloy.

[0042] In this embodiment, the guide structure includes at least two through-hole structures 110 installed on the top of the side surface, and the sliding rod 300 is arranged between the at least two through-hole structures 110. The cross-sectional shape of the through-hole of the through-hole structure 110 matches the cross-sectional shape of the sliding rod 300 to form a clearance fit, and the sliding rod 300 can only move in the through-hole structure 110 along the length direction of the phase shifter cavity 100.

[0043] It can be understood that by providing a guide structure on the side of the phase shifter cavity 100 and close to the transmission connection point, it is beneficial to the stable sliding of the sliding rod 300, and better ensures the stability and reliability of the transmission. There are preferably two through-hole structures 110. Of course, those skilled in the art can also increase the number of through-hole structures 110 according to actual needs, and this embodiment is not specifically limited here.

[0044] In this embodiment, at least two of the through hole structures 110 are respectively located at two ends of the open slot 120 in the length direction.

[0045] In this embodiment, if Figure 5 As shown, the sliding rod 300 is a long strip structure, and its cross-sectional shape is polygonal or circular, and is preferably rectangular in this embodiment.

[0046] In this embodiment, if Figure 3 FIG. 2 is a schematic diagram of the structure of the slider 200 in this embodiment. The upper end connecting portion 210 of the slider 200 is a threaded hole. Figure 5 As shown, a connecting hole 310 is provided on the rod body of the sliding rod 300, and the slider 200 and the sliding rod 300 are fixedly connected by a screw 700 passing through the connecting hole 310 and the threaded hole.

[0047] In this embodiment, the slider 200 and the sliding rod 300 are both made of non-metallic materials. In this embodiment, the slider 200 is made of plastic material POM, and the sliding rod 300 is made of fiberglass, which is a common material in the industry, and will not produce metal contact with the phase shifter cavity 100, thereby reducing the third-order intermodulation instability factor.

[0048] A second aspect of the present utility model embodiment provides an antenna, such as Fig. 9 As shown, the antenna includes a reflector, a plurality of groups of radiation unit arrays are arranged on the front of the reflector, and a plurality of groups of phase shifters are arranged on the back of the reflector. The phase shifters are phase shifters as described in any one of the first aspects above, and the length of the radiation unit array is equivalent to the length of the corresponding phase shifter on the back. Since the other parts of the antenna structure belong to the prior art, those skilled in the art can refer to the prior art.

[0049] Embodiment 2:

[0050] Please refer to Figure 4 , Figure 5 , Figure 7 , Figure 8As shown, the second embodiment of the present invention proposes a phase shifter, which includes a phase shifter cavity 100, a slider 200 and a sliding rod 300. A radio frequency circuit 500 and a dielectric component 400 are arranged inside the phase shifter cavity 100. An open groove 120 is arranged on one side of the phase shifter cavity 100 along the length direction of the phase shifter cavity 100. The slider 200 passes through the open groove 120 through the lower end connecting portion 220 to enter the phase shifter cavity 100 and is connected to the dielectric component 400. The slider 200 is fixedly connected to the sliding rod 300 through the upper end connecting portion 210 and the slider 200 is connected to the dielectric component 400. The connection point between the sliding rods 300 also serves as a transmission connection point of an external power source (not shown in the figure). The external power source drives the phase shifter to adjust the electrical tilt angle through the transmission connection point. A guide structure is provided on the side surface. The sliding rod 300 is installed on the guide structure and can slide freely along the length direction of the phase shifter cavity 100. When the sliding rod 300 slides, it synchronously drives the slider 200 to slide along the length direction of the open groove 120 and then drives the medium component 400 to move. That is, after the slider 200 and the sliding rod 300 are fixedly connected, they can slide synchronously along the length direction of the phase shifter cavity 100.

[0051] In this embodiment, if Figure 7 and Figure 8 As shown, the side surface of the phase shifter cavity 100 where the open slot 120 is located is a side surface parallel to the dielectric component 400 .

[0052] Preferably, the guide structure on the phase shifter cavity 100 is located higher than the upper end surface of the slider 200 , so that the sliding rod 300 is located above the slider 200 .

[0053] In this embodiment, the open slot 120 is arranged at the center position in the length direction of the side surface, and the length of the open slot 120 matches the electrical downward tilt stroke of the phase shifter, that is, the dielectric component 400 and the RF circuit 500 are always located inside the phase shifter cavity 100 during the sliding process.

[0054] In this embodiment, the phase shifter cavity 100 is integrally formed by pultrusion of aluminum alloy.

[0055] In this embodiment, the guide structure includes at least two through-hole structures 110 installed on the top of the side surface, and the sliding rod 300 is arranged between the at least two through-hole structures 110. The cross-sectional shape of the through-hole of the through-hole structure 110 matches the cross-sectional shape of the sliding rod 300 to form a clearance fit, and the sliding rod 300 can only move in the through-hole structure 110 along the length direction of the phase shifter cavity 100.

[0056] It can be understood that by providing a guide structure on the side of the phase shifter cavity 100 and close to the transmission connection point, it is beneficial to the stable sliding of the sliding rod 300, and better ensures the stability and reliability of the transmission. There are preferably two through-hole structures 110. Of course, those skilled in the art can also increase the number of through-hole structures 110 according to actual needs, and this embodiment is not specifically limited here.

[0057] A further improvement is that at least two of the through hole structures 110 are respectively located at two ends of the open slot 120 in the length direction.

[0058] In this embodiment, if Figure 5 As shown, the sliding rod 300 is a long strip structure, and its cross-sectional shape is polygonal or circular, and is preferably rectangular in this embodiment.

[0059] In this embodiment, if Figure 4 FIG. 2 is a schematic diagram of the structure of the slider 200 in this embodiment. The upper end connecting portion 210 of the slider 200 is a latch buckle. Figure 5 As shown, a connecting hole 310 is provided on the rod body of the sliding rod 300 , and the slider 200 and the sliding rod 300 are fixedly connected by the latch snap-fitting into the connecting hole 310 .

[0060] In this embodiment, the slider 200 and the sliding rod 300 are both made of non-metallic materials. In this embodiment, the slider 200 is made of the plastic material "nylon + glass fiber", and the sliding rod 300 is made of fiberglass, which is a common material in the industry, and will not produce metal contact with the phase shifter cavity 100, thereby reducing the third-order intermodulation instability factor.

[0061] The embodiment of the utility model changes the transmission connection point that extends outward at one end of the traditional phase shifter in the length direction to a transmission connection point that is set at the center position of the length direction of one side of the phase shifter, thereby avoiding the transmission connection point being placed outside one end of the phase shifter, effectively reducing the overall length of the phase shifter, and effectively avoiding the problem of lengthening the overall length of the antenna due to the length of the phase shifter exceeding the length of the antenna radiation unit array.

[0062] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which are all protected by the utility model.

Claims

1. A phase shifter, characterized in that: The invention comprises a phase shifter cavity, a slider and a sliding rod, wherein an open groove is arranged on one side surface of the phase shifter cavity along the length direction of the phase shifter cavity, the slider passes through the open groove through the lower end connecting part into the phase shifter cavity and is connected with the medium component, the slider is fixedly connected with the sliding rod through the upper end connecting part and the connection point between the slider and the sliding rod also serves as the transmission connection point of the external power source, a guide structure is arranged on the side surface, the sliding rod is installed on the guide structure and can slide freely along the length direction of the phase shifter cavity, and when the sliding rod slides, the slider is synchronously driven to slide along the length direction of the open groove and then the medium component is driven to move.

2. A phase shifter according to claim 1, characterized in that: The open groove is arranged at a central position in the length direction of the side surface.

3. The phase shifter according to claim 1, characterized in that: The length of the open slot matches the electrical down-tilt travel of the phase shifter.

4. The phase shifter according to claim 1, characterized in that: The phase shifter cavity is integrally formed by pultrusion of aluminum alloy.

5. The phase shifter according to claim 1, characterized in that: The guide structure includes at least two through-hole structures installed on the top of the side surface, and the sliding rod is arranged between the at least two through-hole structures. The cross-sectional shape of the through-hole structure matches the cross-sectional shape of the sliding rod to form a clearance fit.

6. A phase shifter according to claim 5, characterized in that: At least two of the through hole structures are respectively located at two ends of the open slot in the length direction.

7. The phase shifter according to claim 1, characterized in that: The sliding rod is a long strip structure, and its cross-section is polygonal or circular.

8. The phase shifter according to claim 1, characterized in that: The upper end connecting portion of the sliding block is a threaded hole, and the rod body of the sliding rod is provided with a connecting hole. The sliding block and the sliding rod are fixedly connected by screws passing through the connecting hole and the threaded hole.

9. The phase shifter according to claim 1, characterized in that: The upper end connecting part of the sliding block is a latch buckle, and a connecting hole is arranged on the rod body of the sliding rod. The sliding block and the sliding rod are fixedly connected by the latch buckle cooperating with the connecting hole.

10. An antenna, comprising a reflector, wherein a plurality of radiation unit arrays are arranged on the front of the reflector, and a plurality of phase shifters are arranged on the back of the reflector, wherein: The phase shifter is a phase shifter as claimed in any one of claims 1 to 9.

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