Base station antennas, calibration network devices and phase shifters

Abstract

The present invention discloses a base station antenna, a calibration network device and a phase shifter. The phase shifter includes a cavity, a phase shift circuit board, a phase shift dielectric component and a debugging dielectric component. The cavity is provided with a shielding cavity and a debugging hole provided through the side wall of the shielding cavity, and the shielding cavity is provided with an inlet and outlet. The phase shift circuit board is fixedly arranged in the cavity and arranged in the shielding cavity. The phase shift dielectric component can move relative to the shielding cavity through the inlet and outlet. The debugging dielectric component includes a dielectric body, and the dielectric body is movably arranged in the shielding cavity through the debugging hole, and is used to adjust the standing wave ratio of the phase shifter. The phase shifter can adjust the standing wave ratio in a non-tin addition and subtraction manner, which can avoid the hidden danger of intermodulation caused by the addition and subtraction of tin operations. The calibration network device adopts the phase shifter, so that the efficiency of adjusting the standing wave ratio is higher, which is conducive to improving the antenna performance. The base station antenna adopts the calibration network device or the phase shifter, which is convenient for adjusting the standing wave ratio to obtain better antenna performance.

Description

Technical Field

[0001] The present invention relates to the field of antenna technology, and in particular to a base station antenna, a calibration network device and a phase shifter. Background Art

[0002] With the rapid development of mobile communication networks, communication systems are evolving rapidly towards 5G. 5G antennas have become an important research direction at present, but they also face many problems.

[0003] Phase shifters are the core components of base station electrically adjustable antennas and are also key components that affect the electrical and radiation performance of base station antennas. At present, phase shifters are composed of multiple components, each of which has a certain dimensional tolerance. At the same time, there are also mechanical matching errors between the components, which causes a certain fluctuation in the standing wave ratio of the phase shifter. The existence of the standing wave ratio fluctuation of the phase shifter causes a certain fluctuation in the standing wave ratio of the base station antenna, affecting the performance of the base station antenna.

[0004] In order to adjust the standing wave ratio, the traditional method is to adjust the standing wave ratio of the phase shifter by adding or removing tin at the input port or output port of the phase shifter. However, the operation of adding or removing tin is prone to intermodulation risks, which makes the one-time pass rate and stability of the antenna intermodulation decrease to varying degrees, which is not conducive to improving the antenna performance. Summary of the invention

[0005] Based on this, it is necessary to provide a base station antenna, a calibration network device and a phase shifter. The phase shifter can adjust the standing wave ratio in a non-tin addition and subtraction manner, which can avoid the hidden danger of intermodulation caused by the addition and subtraction of tin. The calibration network device adopts the phase shifter, which makes the adjustment of the standing wave ratio more efficient and is conducive to improving the antenna performance. The base station antenna adopts a calibration network device or a phase shifter, which is convenient for adjusting the standing wave ratio to obtain better antenna performance.

[0006] The technical solution is as follows:

[0007] On the one hand, the present application provides a phase shifter, including a cavity, a phase shift circuit board, a phase shift dielectric component and a debugging dielectric component, the cavity is provided with a shielding cavity and a debugging hole arranged through the side wall of the shielding cavity, and the shielding cavity is provided with an inlet and an outlet; the phase shift circuit board is fixedly arranged in the cavity and arranged in the shielding cavity; the phase shift dielectric component can move relative to the shielding cavity through the inlet and outlet; the debugging dielectric component includes a dielectric body, and the dielectric body is movably arranged in the shielding cavity through the debugging hole, so as to adjust the standing wave ratio of the phase shifter.

[0008] When the above-mentioned phase shifter is assembled on the base station antenna, if the standing wave ratio of the phase shifter does not meet the requirements due to manufacturing errors, the relative dielectric constant of the phase shift circuit can be changed by adjusting the position of the dielectric body in the shielding cavity, thereby achieving the adjustment of the standing wave ratio of the phase shifter. In this way, the phase shifter can adjust the standing wave ratio in a non-tin addition and subtraction manner, which can avoid the hidden danger of intermodulation caused by the addition and subtraction of tin operations, and also facilitate the operator to adjust the standing wave ratio, providing convenience for the construction of base station antennas. After completing the standing wave ratio adjustment, the phase shift dielectric component can be moved through the inlet and outlet to adjust the downtilt angle of the antenna so that the antenna radiation can cover the preset range.

[0009] The technical solution is further described below:

[0010] In one embodiment, the phase-shifting circuit board is provided with a phase-shifting circuit layer, and the dielectric body is arranged above or below the phase-shifting circuit layer.

[0011] In one embodiment, there are at least two debugging holes, which are spaced apart and arranged on the side wall of the shielding cavity.

[0012] In one embodiment, the debugging dielectric member further includes a connector, which is fixed to the dielectric body so that the dielectric body is disposed in the shielding cavity through the debugging hole, the connector is slidably connected to the cavity, and the debugging hole is a strip-shaped hole.

[0013] In one of the embodiments, the cavity is provided with a slide rail, and the slide rail and the debugging hole are arranged in the same direction and at intervals; the connector is provided with a matching portion that matches the slide rail.

[0014] In one of the embodiments, the cavity is further provided with a slot, which is spaced apart in the same direction as the slide rail and is in a strip shape; the connector is provided with a hook, which cooperates with the slot and can move along the length direction of the slot.

[0015] In one embodiment, the debugging hole is an internal threaded hole, the debugging medium piece has a screw rod matched with the internal threaded hole, and the medium body is arranged on the screw rod.

[0016] In one of the embodiments, there are at least two debugging medium pieces and at least two debugging holes.

[0017] In one embodiment, the dielectric constants of at least two debugging dielectric members are different.

[0018] On the other hand, the present application also provides a calibration network device, comprising the phase shifter as described above.

[0019] The calibration network device integrates the above phase shifter, and can realize more than one function such as power division, filtering, and combining. It can also change the relative dielectric constant of the phase shift circuit by adjusting the position of the dielectric body in the shielding cavity, thereby adjusting the standing wave ratio of the phase shifter, so that the standing wave ratio of the phase shifter can meet the construction requirements of the base station antenna. At the same time, the calibration network device adopts the phase shifter, which makes the adjustment of the standing wave ratio more efficient, can avoid the hidden danger of intermodulation caused by the operation of adding and subtracting tin, and is conducive to improving the performance of the antenna.

[0020] On the other hand, the present application also provides a base station antenna, including the phase shifter as described above, or the calibration network device as described above.

[0021] When the base station antenna is installed, if the standing wave ratio of the phase shifter does not meet the requirements due to manufacturing errors, the relative dielectric constant of the phase shift circuit can be changed by adjusting the position of the dielectric body in the shielding cavity, thereby adjusting the standing wave ratio of the phase shifter, and then adjusting the standing wave ratio of the base station antenna. In this process, the standing wave ratio is adjusted by a non-tin addition and subtraction method, which can avoid the hidden dangers of intermodulation caused by the addition and subtraction of tin operations, which is conducive to improving the one-time pass rate and stability of antenna intermodulation, and is conducive to improving antenna performance. At the same time, it is also convenient for operators to adjust the standing wave ratio, providing convenience for the construction of base station antennas. After completing the standing wave ratio adjustment, the downtilt angle of the antenna can be adjusted by moving the phase-shifting dielectric component so that the antenna radiation can cover the preset range. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of a phase shifter shown in an embodiment;

[0023] Figure 2 for Figure 1 A half-section schematic diagram of the phase shifter in the direction of the debugging dielectric element is shown;

[0024] Figure 3 for Figure 1 A partial cross-sectional schematic diagram of the phase shifter shown in the direction of the phase shift circuit board;

[0025] Figure 4 for Figure 3 The structural schematic diagram of the debugging medium component shown;

[0026] Figure 5 is a structural schematic diagram of a debugging medium component shown in another embodiment;

[0027] Figure 6 is a schematic structural diagram of a phase shifter shown in another embodiment;

[0028] Figure 7 for Figure 6 The schematic partial cross-sectional view of the phase shifter shown in the arrangement direction of the debugging holes.

[0029] Description of reference numerals:

[0030] 100, cavity; 110, shielding cavity; 112, inlet and outlet; 120, debugging hole; 130, slide rail; 132, slide groove; 140, slot; 200, phase-shifting circuit board; 210, phase-shifting circuit layer; 300, phase-shifting dielectric component; 400, debugging dielectric component; 410, dielectric body; 420, connector; 422, matching body; 424; hook; 426, driving unit; 430, screw.

[0031] BRIEF DESCRIPTION OF THE DRAWINGS The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention 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 herein are only used to explain the present invention and do not limit the scope of protection of the present invention.

[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 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 phase shifter is applied in the antenna to adjust the downtilt angle of the antenna. Specifically, the downtilt angle of the antenna is adjusted by moving the position of the phase shifting dielectric plate in the cavity so that the antenna can cover a preset range.

[0036] like Figures 1 to 3As shown, in this embodiment, a phase shifter is provided, including a cavity 100, a phase shift circuit board 200, a phase shift dielectric member 300 and a debugging dielectric member 400. The cavity 100 is provided with a shielding cavity 110 and a debugging hole 120 arranged through the side wall of the shielding cavity 110, and the shielding cavity 110 is provided with an inlet and outlet 112; the phase shift circuit board 200 is fixedly arranged in the cavity 100 and arranged in the shielding cavity 110; the phase shift dielectric member 300 can move relative to the shielding cavity 110 through the inlet and outlet 112; the debugging dielectric member 400 includes a dielectric body 410, and the dielectric body 410 is movably arranged in the shielding cavity 110 through the debugging hole 120, so as to adjust the standing wave ratio of the phase shifter.

[0037] When the above-mentioned phase shifter is assembled on the base station antenna, when the standing wave ratio of the phase shifter does not meet the requirements due to manufacturing errors, the relative dielectric constant of the phase shift circuit can be changed by adjusting the position of the dielectric body 410 in the shielding cavity 110, thereby achieving the adjustment of the standing wave ratio of the phase shifter. In this way, the phase shifter can adjust the standing wave ratio in a non-tin addition and subtraction manner, which can avoid the hidden danger of intermodulation caused by the addition and subtraction of tin operations, and also facilitate the operator to adjust the standing wave ratio, providing convenience for the construction of the base station antenna. After the standing wave ratio adjustment is completed, the phase shift dielectric component 300 can be moved through the inlet and outlet 112 to adjust the downtilt angle of the antenna so that the antenna radiation can cover the preset range.

[0038] At the same time, it is understandable that the traditional "addition and subtraction of tin" method is difficult to achieve successful adjustment of the standing wave ratio of the phase shifter by adding tin or subtracting tin once, and requires repeated adjustments; this process requires that each adjustment be measured to see if it meets the requirements, resulting in the entire adjustment process being time-consuming and labor-intensive, which is not conducive to improving the production efficiency and installation efficiency of base station antennas. However, when using the phase shifter of the present invention, when adjusting the standing wave ratio, it is only necessary to adjust the position of the dielectric body 410 in the shielding cavity 110 through the debugging hole 120. During this process, the relevant detection interface can be powered on for detection, and the standing wave ratio data can be obtained in real time, so that the standing wave ratio adjustment can be quickly completed, which is conducive to improving the production efficiency and installation efficiency of base station antennas.

[0039] Furthermore, when soldering and adding tin multiple times, it will have an adverse effect on the intermodulation of the phase shifter, and even damage the phase shifter, resulting in the need to replace a new phase shifter, which will inevitably increase the installation cost of the base station antenna. However, the present application does not require adding or removing tin, so there is naturally no such problem, and damage to the phase shifter during the adjustment of the standing wave ratio can be avoided.

[0040] It should be noted that “the dielectric body 410 is movably disposed in the shielding cavity 110 through the debugging hole 120” means that the position of the dielectric body 410 relative to the shielding cavity 110 is adjustable, and the dielectric body 410 is inserted into the shielding cavity 110 through the debugging hole 120. There are many ways to achieve “the dielectric body 410 is movable”, such as adjusting the length direction position relative to the phase shifting circuit board 200 by telescopic movement, sliding, etc., or adjusting the thickness direction position relative to the phase shifter circuit by telescopic movement, etc.

[0041] Based on the above embodiments, Figure 2 and Figure 3 As shown, in one embodiment, the phase shift circuit board 200 is provided with a phase shift circuit layer 210, and the dielectric body 410 is arranged above or below the phase shift circuit layer 210. In this way, by arranging the dielectric body 410 above or below the phase shift circuit layer 210, the relative dielectric constant of the phase shifter circuit can be better affected, and then the standing wave ratio can be adjusted in a wider range through the small position edge of the dielectric body 410.

[0042] Based on any of the above embodiments, Figure 6 and Figure 7 As shown, in one embodiment, there are at least two debugging holes 120, which are arranged at intervals on the side wall of the shielding cavity 110. In this way, different debugging holes 120 on the cavity 100 can be used to cooperate with the dielectric body 410 to achieve different standing wave ratio adjustments, and the adjustment method is more flexible to meet the needs of different debugging scenarios. Specifically, different standing wave ratio adjustments are obtained by using one dielectric body 410 and different debugging holes 120; or the number of debugging holes 120 corresponds to the number of dielectric bodies 410 one by one, and the standing wave ratio is adjusted by changing the position of the dielectric body 410 on different debugging holes 120 relative to the shielding cavity 110; or the standing wave ratio is adjusted by the cooperation between different debugging holes 120 and different dielectric bodies 410.

[0043] Based on any of the above embodiments, Figures 1 to 4 As shown, in one embodiment, the debugging dielectric member 400 further includes a connector 420, which is fixed to the dielectric body 410, so that the dielectric body 410 is disposed in the shielding cavity 110 through the debugging hole 120, and the connector 420 is slidably connected to the cavity 100, and the debugging hole 120 is a strip hole. In this way, when the standing wave ratio of the phase shifter does not meet the requirements due to manufacturing errors, the relative dielectric constant of the phase shifting circuit can be changed by slidingly connecting the connector 420 to the cavity 100 and moving the position of the dielectric body 410 in the shielding cavity 110, thereby achieving the adjustment of the standing wave ratio of the phase shifter.

[0044] Furthermore, if Figures 1 to 3As shown, in one embodiment, the cavity 100 is provided with a slide rail 130, and the slide rail 130 and the debugging hole 120 are arranged in the same direction and at intervals; the connecting body 420 is provided with a matching portion that matches the slide rail 130. In this way, by setting the slide rail 130 on the cavity 100, and then using the matching portion to slide with the slide rail 130 to achieve the sliding connection between the connecting body 420 and the cavity 100.

[0045] The matching formation of “matching part and slide rail 130 ” can be formed in many ways, such as the matching part is a protrusion, and the slide rail 130 is provided with a slide groove 132 matching with the protrusion; or the matching part is a slider, which is slidably connected with the slide rail 130 .

[0046] Specifically in this embodiment, Figures 2 to 4 As shown, the cavity 100 is also provided with a slot 140, which is arranged in the same direction and spaced apart from the slide rail 130, and is in a strip shape; the connector 420 is provided with a hook 424, which cooperates with the slot 140 and can move along the length direction of the slot 140. In this way, the fast disassembly and assembly of the connector 420 is facilitated by the cooperation between the slot 140 and the hook 424. Specifically, the matching portion is slidably matched with the slide rail 130, and the hook 424 is inserted into the slot 140, and the connector 420 is connected to the cavity 100 by the cooperation between the hook 424 and the slot 140, and the movement of the connector 420 relative to the cavity 100 is not affected; when the connector 420 needs to be disassembled, it is only necessary to deform the hook 424 so that the hook 424 is separated from the slot 140, and the connector 420 can be separated from the cavity 100.

[0047] Specifically, Figure 2 As shown, the slot 140 is arranged above the slide rail 130, and the slide rail 130 is provided with a groove with an arc-shaped cross section, and the cross section of the matching portion is an annular body, and the annular body is adapted to the groove. In this way, when the slot 140 is matched with the hook 424, the annular body can be close to the groove, so that the connecting body 420 and the cavity 100 are reliably connected by sliding.

[0048] Based on any of the above embodiments of the connector 420, Figure 5 As shown, in one embodiment, the debugging dielectric component 400 is provided with at least two dielectric bodies 410, each dielectric body 410 is connected by a connector 420, and two adjacent dielectric bodies 410 are arranged at intervals. In this way, the debugging dielectric component 400 can be applied to a multilayer phase shifting circuit, and can adjust the dielectric constant of the corresponding phase shifting circuit board 200 to meet the adjustment needs of the standing wave ratio of different types of phase shifters.

[0049] Based on any of the above embodiments of the connector 420, Figure 2 and Figure 4As shown, in one embodiment, the connecting body 420 is further provided with a driving part 426, and the driving part 426 is arranged away from the dielectric body 410. In this way, the driving part 426 is used to drive the connecting body 420 to move.

[0050] Specific embodiments of the driving unit 426 include but are not limited to a handle, a force block, etc.

[0051] In any of the above embodiments, if Figure 3 As shown, the phase-shifting dielectric component 300 and the debugging dielectric component 400 are both plate-shaped structures, and the phase-shifting dielectric component 300 and the debugging dielectric component 400 are staggered and matched with each other without interfering with each other.

[0052] When one debugging medium component 400 corresponds to at least two debugging holes 120 , the above structure can be used to realize quick disassembly and assembly of the debugging medium component 400 on different debugging holes 120 .

[0053] like Figure 6 and Figure 7 As shown, in another embodiment, the debugging hole 120 is an internal threaded hole, the debugging dielectric member 400 has a screw 430 that matches the internal threaded hole, and the dielectric body 410 is arranged on the screw 430. In this way, when the standing wave ratio of the phase shifter does not meet the requirements due to manufacturing errors, the position of the dielectric body 410 in the shielding cavity 110 can be changed by rotating the screw 430, thereby changing the relative dielectric constant of the phase shifting circuit, thereby achieving the adjustment of the standing wave ratio of the phase shifter. The internal threaded hole and the screw 430 can realize that they can be turned and moved, and stopped when they are not turned, which is conducive to ensuring that the standing wave ratio data will not change easily and the reliability of the adjustment result.

[0054] Furthermore, if Figure 7 As shown, in one embodiment, there are at least two debugging dielectric members 400 and at least two debugging holes 120. Thus, the standing wave ratio can be adjusted by changing the position of the debugging dielectric members 400 on different debugging holes 120 relative to the shielding cavity 110.

[0055] Optionally, in one embodiment, the dielectric constants of at least two debugging dielectric members 400 are different. In this way, the standing wave ratio can be adjusted by matching different debugging holes 120 with different debugging dielectric members 400.

[0056] In one embodiment, a calibration network device is also provided, comprising the phase shifter as described above.

[0057] The calibration network device integrates the above-mentioned phase shifter, and further, on the basis of being able to realize more than one function such as power division, filtering, and combining, the relative dielectric constant of the phase shift circuit can be changed by adjusting the position of the dielectric body 410 in the shielding cavity 110, thereby realizing the adjustment of the standing wave ratio of the phase shifter, so that the standing wave ratio of the phase shifter can meet the construction requirements of the base station antenna. At the same time, the calibration network device adopts the phase shifter, which makes the adjustment of the standing wave ratio more efficient, can avoid the hidden danger of intermodulation caused by the operation of adding and subtracting tin, and is conducive to improving the performance of the antenna.

[0058] In one embodiment, a base station antenna is further provided, comprising the phase shifter as described above, or the calibration network device as described above.

[0059] When the base station antenna is installed, if the standing wave ratio of the phase shifter does not meet the requirements due to manufacturing errors, the relative dielectric constant of the phase shift circuit can be changed by adjusting the position of the dielectric body 410 in the shielding cavity 110, so as to adjust the standing wave ratio of the phase shifter, and then adjust the standing wave ratio of the base station antenna. In this process, the standing wave ratio is adjusted by a non-addition and subtraction method, which can avoid the hidden dangers of intermodulation caused by the addition and subtraction of tin, which is conducive to improving the one-time pass rate and stability of the antenna intermodulation, and is conducive to improving the antenna performance. At the same time, it is also convenient for the operator to adjust the standing wave ratio, providing convenience for the construction of the base station antenna. After the standing wave ratio adjustment is completed, the downtilt angle of the antenna can be adjusted by moving the phase-shifting dielectric component 300, so that the antenna radiation can cover the preset range. Furthermore, using the base station antenna of the present application, the relevant detection interface can be powered on for detection, and the standing wave ratio data can be obtained in real time, so that the standing wave ratio adjustment can be quickly completed, simplifying the adjustment process, which is conducive to improving the production efficiency and installation efficiency of the base station antenna. The base station antenna uses a calibration network device or a phase shifter to facilitate the adjustment of the standing wave ratio to obtain better antenna performance.

[0060] It should be noted that the "medium body 410" can be a "part of the debugging medium component 400", that is, the "medium body 410" and the "other parts of the debugging medium component 400" are manufactured as one piece; the "medium body 410" can also be an independent component that can be separated from the "other parts of the debugging medium component 400", that is, the "medium body 410" can be manufactured independently and then combined with the "other parts of the debugging medium component 400" into a whole.

[0061] Equivalently, "some body" or "some part" can be a part of the corresponding "component", that is, "some body" or "some part" can be integrally formed with the "other parts of the component"; or it can be an independent component separable from the "other parts of the component", that is, "some body" or "some part" can be independently manufactured and then combined with the "other parts of the component" into a whole. The expression of the above-mentioned "some body" or "some part" in this application is only one of the embodiments, for the convenience of reading, and not to limit the scope of protection of this application. As long as it contains the above-mentioned features and has the same function, it should be understood as an equivalent technical solution of this application.

[0062] It should be noted that the components included in the "unit", "assembly", "mechanism" and "device" of this application can also be flexibly combined, that is, modular production can be carried out according to actual needs to facilitate modular assembly. The division of the above components in this application is only one of the embodiments, for the convenience of reading, and not to limit the scope of protection of this application. As long as the above components are included and have the same functions, it should be understood that it is an equivalent technical solution of this application.

[0063] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0064] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0065] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0067] It should be noted that when an element is referred to as being "fixed on", "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. Further, when an element is considered to be "fixed transmission connected" to another element, the two may be fixed in a detachable connection manner or in a non-detachable connection, as long as power transmission can be achieved, such as socketing, snap-on, one-piece fixation, welding, etc., which can be achieved in the prior art and 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 herein are for illustrative purposes only and do not represent the only implementation method.

[0068] 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.

[0069] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A phase shifter, characterized in that: include: A cavity, wherein the cavity is provided with a shielding cavity and a debugging hole arranged through a side wall of the shielding cavity, and the shielding cavity is provided with an inlet and an outlet; A phase-shifting circuit board, the phase-shifting circuit board is fixed to the cavity and arranged in the shielding cavity; A phase-shifting dielectric component, wherein the phase-shifting dielectric component can move relative to the shielding cavity through the inlet and outlet; and The debugging dielectric component includes a dielectric body, and the dielectric body is movably arranged in the shielding cavity through the debugging hole, and is used to adjust the standing wave ratio of the phase shifter.

2. The phase shifter according to claim 1, characterized in that: The phase-shift circuit board is provided with a phase-shift circuit layer, and the dielectric body is arranged above or below the phase-shift circuit layer.

3. The phase shifter according to claim 1, characterized in that There are at least two debugging holes, which are arranged at intervals on the side wall of the shielding cavity.

4. The phase shifter according to any one of claims 1 to 3, characterized in that: The debugging dielectric member further includes a connector, which is fixed to the dielectric body so that the dielectric body is disposed in the shielding cavity through the debugging hole. The connector is slidably connected to the cavity, and the debugging hole is a strip-shaped hole.

5. The phase shifter according to claim 4, characterized in that: The cavity is provided with a slide rail, and the slide rail and the debugging hole are arranged in the same direction and at intervals; the connector is provided with a matching portion that matches with the slide rail.

6. The phase shifter according to claim 5, characterized in that The cavity is also provided with a slot, which is spaced apart in the same direction as the slide rail and is in a strip shape; the connector is provided with a hook, which cooperates with the slot and can move along the length direction of the slot.

7. The phase shifter according to any one of claims 1 to 3, characterized in that: The debugging hole is an internal threaded hole, the debugging medium piece has a screw rod matched with the internal threaded hole, and the medium body is arranged on the screw rod.

8. The phase shifter according to claim 7, characterized in that There are at least two debugging media components.

9. The phase shifter according to claim 8, characterized in that The dielectric constants of at least two of the debugging dielectric members are different.

10. A calibration network device, characterized in that: Comprising the phase shifter according to any one of claims 1 to 9.

11. A base station antenna, characterized in that: It comprises the phase shifter according to any one of claims 1 to 9, or the calibration network device according to claim 10.

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