CN212366152U - Base station antenna, calibration network device and phase shifter - Google Patents

Abstract

The utility model discloses a base station antenna, a calibration network device and a phase shifter, wherein the phase shifter comprises a cavity, a phase shift circuit board, a phase shift dielectric element and a debugging dielectric element, the cavity is provided with a shielding cavity and a debugging hole which is arranged through the side wall of the shielding cavity, and the shielding cavity is provided with an inlet and an outlet; the phase-shifting circuit board is fixedly arranged in the cavity and is arranged in the shielding cavity; the phase-shifting medium piece can move relative to the shielding cavity through the inlet and the outlet; the debugging medium piece comprises a medium body, and the medium body is movably arranged in the shielding cavity through the debugging hole and is used for adjusting the standing-wave ratio of the phase shifter. The phase shifter can adjust the standing-wave ratio by adopting a mode of not adding or subtracting tin, and can avoid the intermodulation hidden trouble easily caused by the operation of adding or subtracting tin. The calibration network device adopts the phase shifter, so that the efficiency of adjusting the standing-wave ratio is higher, and the antenna performance is favorably improved. The base station antenna adopts a calibration network device or a phase shifter, so that the standing-wave ratio can be conveniently adjusted to obtain better antenna performance.

Description

Base station antenna, calibration network device and phase shifter

Technical Field

The utility model relates to an antenna technology field especially relates to a base station antenna, calibration network device and move looks ware.

Background

With the rapid development of mobile communication networks, communication systems are facing to 5G fast-step evolution, and 5G antennas are currently an important research direction, but currently, many problems are faced.

The phase shifter is used as a core device of the base station electrically-tunable antenna and is also a key device influencing the electrical performance and the radiation performance of the base station antenna. At present, a phase shifter is composed of a plurality of components, each component has a certain dimensional tolerance, and meanwhile, a mechanical fit error also exists between the components, so that the standing-wave ratio of the phase shifter has certain fluctuation. The standing-wave ratio of the phase shifter fluctuates to a certain extent, which affects the performance of the base station antenna.

In order to realize the adjustment of the standing wave ratio, the conventional method is to adjust the standing wave ratio of the phase shifter by adding or subtracting tin at the input port or the output port of the phase shifter. However, the operation of adding or subtracting tin easily brings intermodulation hidden trouble, so that the one-time passing rate and the stability of the intermodulation of the antenna are reduced in different degrees, and the performance of the antenna is not favorably improved.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a base station antenna, a calibration network device and a phase shifter. The phase shifter can adjust the standing-wave ratio by adopting a mode of not adding or subtracting tin, and can avoid the intermodulation hidden trouble easily caused by the operation of adding or subtracting tin. The calibration network device adopts the phase shifter, so that the efficiency of adjusting the standing-wave ratio is higher, and the antenna performance is favorably improved. The base station antenna adopts a calibration network device or a phase shifter, so that the standing-wave ratio can be conveniently adjusted to obtain better antenna performance.

The technical scheme is as follows:

on one hand, the application provides a phase shifter, which comprises a cavity, a phase shifting circuit board, a phase shifting medium piece and a debugging medium piece, wherein the cavity is provided with a shielding cavity and a debugging hole which penetrates through the side wall of the shielding cavity, and the shielding cavity is provided with an inlet and an outlet; the phase-shifting circuit board is fixedly arranged in the cavity and is arranged in the shielding cavity; the phase-shifting medium piece can move relative to the shielding cavity through the inlet and the outlet; the debugging medium piece comprises a medium body, and the medium body is movably arranged in the shielding cavity through the debugging hole and is used for adjusting the standing-wave ratio of the phase shifter.

When the phase shifter is assembled on a base station antenna, when the standing wave ratio of the phase shifter does not meet the requirement due to manufacturing errors, the relative dielectric constant of the phase shifting circuit can be changed by adjusting the position of the dielectric body in the shielding cavity, so that the standing wave ratio of the phase shifter can be adjusted. Therefore, the phase shifter can adjust the standing-wave ratio in a non-tin-adding or tin-adding mode, can avoid intermodulation hidden danger caused by tin-adding or tin-adding operation, is convenient for an operator to adjust the standing-wave ratio, and provides convenience for the construction of a base station antenna. After the standing-wave ratio is adjusted, the downward inclination angle of the antenna can be adjusted by moving the phase-shifting dielectric piece through the inlet and the outlet, so that the radiation of the antenna can cover a preset range.

The technical solution is further explained below:

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.

In one embodiment, the number of the debugging holes is at least two, and the debugging holes are arranged on the side wall of the shielding cavity at intervals.

In one embodiment, the debugging medium piece further comprises a connecting body, the connecting body is fixed with the medium body, so that the medium body is arranged in the shielding cavity through the debugging hole, the connecting body is in sliding connection with the cavity, and the debugging hole is a strip-shaped hole.

In one embodiment, the cavity is provided with a slide rail, and the slide rail and the debugging hole are arranged at intervals in the same direction; the connector is provided with a matching part matched with the slide rail.

In one embodiment, the cavity is further provided with clamping grooves, the clamping grooves and the sliding rails are arranged at intervals in the same direction, and the clamping grooves are in a strip shape; the connector is provided with a clamping hook which is matched with the clamping groove and can move along the length direction of the clamping groove.

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

In one embodiment, there are at least two debug media pieces and at least two debug holes.

In one embodiment, the dielectric constant is different between at least two debug media pieces.

In another aspect, the present application further provides a calibration network apparatus including the phase shifter as described above.

The calibration network device integrates the phase shifter, and further can change the relative dielectric constant of the phase shifting circuit by adjusting the position of the dielectric body in the shielding cavity on the basis of realizing more than one functions of power division, filtering, combining and the like, so that the standing-wave ratio of the phase shifter is adjusted, and the standing-wave ratio of the phase shifter can meet the construction requirements of base station antennas. Meanwhile, the phase shifter is adopted by the calibration network device, so that the efficiency of adjusting the standing-wave ratio is higher, the intermodulation hidden danger caused by tin adding and subtracting operation can be avoided, and the antenna performance is favorably improved.

In another aspect, the present application further provides a base station antenna comprising the phase shifter as described above, or the calibration network apparatus as described above.

When the base station antenna is installed, when the standing wave ratio of the phase shifter does not meet the requirement due to manufacturing errors, the relative dielectric constant of the phase shifting circuit can be changed by adjusting the position of the dielectric body in the shielding cavity, so that the standing wave ratio of the phase shifter is adjusted, and further the standing wave ratio of the base station antenna is adjusted. In the process, the standing-wave ratio is adjusted in a non-tin adding and subtracting mode, intermodulation hidden danger caused by tin adding and subtracting can be avoided, the disposable passing rate and stability of antenna intermodulation can be improved, and the performance of the antenna can be improved. Meanwhile, the standing-wave ratio can be conveniently adjusted by an operator, and convenience is provided for the construction of the base station antenna. After the standing-wave ratio is adjusted, the downward inclination angle of the antenna can be adjusted by moving the phase-shifting dielectric piece, so that the radiation of the antenna can cover a preset range.

Drawings

FIG. 1 is a schematic diagram of a phase shifter according to an embodiment;

FIG. 2 is a schematic half-sectional view of the phase shifter of FIG. 1 in a direction of a tuning dielectric member;

FIG. 3 is a schematic partial cross-sectional view of the phase shifter of FIG. 1 in the direction of a phase shifting circuit board;

FIG. 4 is a schematic structural diagram of the debug media piece shown in FIG. 3;

FIG. 5 is a schematic structural diagram of a debug media piece shown in another embodiment;

FIG. 6 is a schematic diagram of a phase shifter according to another embodiment;

FIG. 7 is a partial cross-sectional view of the phase shifter shown in FIG. 6 in the alignment direction of the via holes.

Description of reference numerals:

100. a cavity; 110. a shielding cavity; 112. an inlet and an outlet; 120. debugging the hole; 130. a slide rail; 132. a chute; 140. a card slot; 200. a phase shift circuit board; 210. a phase shift circuit layer; 300. a phase-shift dielectric member; 400. debugging the medium piece; 410. a dielectric body; 420. a linker; 422. a mating body; 424; a hook is clamped; 426. a drive section; 430. a screw.

Description of the drawingsthe accompanying drawings, which form a part of the present application, serve to provide a further understanding of the invention, and the exemplary embodiments and descriptions thereof are provided for purposes of explanation and are not intended to constitute undue limitations on the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The phase shifter is applied to the antenna, and the adjustment of the downward inclination angle of the leg antenna can be realized. Specifically, the adjustment of the downward inclination angle of the antenna is realized by moving the position of the phase-shifting dielectric plate in the cavity, so that the antenna can cover a preset range.

As shown in fig. 1 to fig. 3, in the present embodiment, a phase shifter is provided, which includes a cavity 100, a phase shifting circuit board 200, a phase shifting dielectric element 300 and a debugging dielectric element 400, wherein the cavity 100 is provided with a shielding cavity 110 and a debugging hole 120 penetrating through a sidewall of the shielding cavity 110, and the shielding cavity 110 is provided with an inlet and an outlet 112; the phase-shifting circuit board 200 is fixedly arranged in the cavity 100 and arranged in the shielding cavity 110; the phase-shifting dielectric element 300 can move relative to the shielding cavity 110 through the inlet and the outlet 112; the tuning dielectric member 400 includes a dielectric body 410, and the dielectric body 410 is movably disposed in the shielding cavity 110 through the tuning hole 120 for adjusting the standing wave ratio of the phase shifter.

When the phase shifter is assembled on a base station antenna, when the standing wave ratio of the phase shifter does not meet the requirement due to manufacturing errors, the relative dielectric constant of the phase shifting circuit can be changed by adjusting the position of the dielectric body 410 in the shielding cavity 110, so that the standing wave ratio of the phase shifter can be adjusted. Therefore, the phase shifter can adjust the standing-wave ratio in a non-tin-adding or tin-adding mode, can avoid intermodulation hidden danger caused by tin-adding or tin-adding operation, is convenient for an operator to adjust the standing-wave ratio, and provides convenience for the construction of a base station antenna. After the standing-wave ratio is adjusted, the phase-shift dielectric member 300 can be moved through the inlet/outlet 112 to adjust the downward tilt angle of the antenna, so that the radiation of the antenna can cover a preset range.

Meanwhile, it can be understood that the standing wave ratio of the phase shifter can be successfully adjusted by adding tin or reducing tin once in the traditional tin adding and reducing mode, and the standing wave ratio needs to be adjusted repeatedly for many times; this process needs, and the adjustment is once measured and is once satisfied with the requirement, leads to whole adjustment process to waste time and energy, is unfavorable for improving the production efficiency and the installation effectiveness of base station antenna. And utilize the utility model discloses a move looks ware, when carrying out the standing-wave ratio adjustment, only need through debugging hole 120 adjust the position of dielectric body 410 in shielding chamber 110 can, this in-process, relevant detection interface can implement the circular telegram and detect, obtains the data of standing-wave ratio in real time, and then can realize accomplishing the adjustment of standing-wave ratio fast, is favorable to improving the production efficiency and the installation effectiveness of base station antenna.

Moreover, when soldering and tinning are performed for many times, intermodulation of the phase shifter is adversely affected, and even the phase shifter is damaged, so that a new phase shifter needs to be replaced, which inevitably increases the installation cost of the base station antenna. The problem is naturally solved without adding or subtracting tin, and the phase shifter can be prevented from being damaged in the process of adjusting the standing-wave ratio.

It should be noted that "the dielectric member 410 is movably disposed in the shield cavity 110 through the debugging hole 120", that is, the position of the dielectric member 410 with respect to the shield cavity 110 is adjustable, and the dielectric member 410 is inserted into the shield cavity 110 through the debugging hole 120. The dielectric member 410 may be movable in various ways, such as by adjusting the longitudinal position of the phase shifter circuit board 200 by telescopic movement, sliding movement, or the like, or by adjusting the thickness position of the phase shifter circuit by telescopic movement, or the like.

Based on the above embodiments, as shown in fig. 2 and fig. 3, in one embodiment, the phase-shift circuit board 200 is provided with a phase-shift circuit layer 210, and the dielectric body 410 is disposed above or below the phase-shift circuit layer 210. Thus, by disposing 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 influenced, and further, the standing-wave ratio can be adjusted in a wider range by the small position of the dielectric body 410.

In addition to any of the above embodiments, as shown in fig. 6 and 7, in an embodiment, at least two debugging holes 120 are disposed on the sidewall of the shielding cavity 110 at intervals. Thus, different standing wave ratios can be adjusted by matching different debugging holes 120 on the cavity 100 with the dielectric body 410, and the adjusting mode is more flexible to meet different debugging scene requirements. Specifically, one dielectric body 410 and different debugging holes 120 are utilized to obtain different standing wave ratio adjustments; or the number of the debugging holes 120 corresponds to the number of the dielectric bodies 410 one by one, and the standing-wave ratio is adjusted by changing the positions of the dielectric bodies 410 on different debugging holes 120 relative to the shielding cavity 110; or the cooperation between different tuning holes 120 and different dielectric bodies 410 to achieve the tuning of the standing wave ratio.

On the basis of any of the above embodiments, as shown in fig. 1 to 4, in an embodiment, the debugging medium element 400 further includes a connecting body 420, the connecting body 420 is fixed with the medium body 410, so that the medium body 410 is disposed in the shielding cavity 110 through the debugging hole 120, the connecting body 420 is slidably connected with the cavity 100, and the debugging hole 120 is a strip-shaped hole. Thus, when the standing wave ratio of the phase shifter does not meet the requirement due to manufacturing errors, the relative dielectric constant of the phase shift circuit can be changed by the sliding connection of the connecting body 420 and the cavity 100 and the position of the moving medium body 410 in the shielding cavity 110, thereby realizing the adjustment of the standing wave ratio of the phase shifter.

Further, as shown in fig. 1 to 3, in an embodiment, the cavity 100 is provided with a slide rail 130, and the slide rail 130 and the adjusting hole 120 are spaced in the same direction; the connection body 420 is provided with a fitting portion to be fitted with the slide rail 130. In this way, the sliding connection between the connecting body 420 and the cavity 100 is achieved by disposing the sliding rail 130 on the cavity 100 and then slidably fitting the fitting portion with the sliding rail 130.

The matching between the matching part and the sliding rail 130 can be formed in various ways, for example, the matching part is a convex body, and the sliding rail 130 is provided with a sliding groove 132 matched with the convex body; or the matching part is a slide block which is connected with the slide rail 130 in a sliding way.

Specifically, in the present embodiment, as shown in fig. 2 to 4, the cavity 100 is further provided with a clamping groove 140, the clamping groove 140 and the sliding rail 130 are arranged at intervals in the same direction, and the clamping groove 140 is in a strip shape; the connector 420 has a hook 424, and the hook 424 is engaged with the slot 140 and can move along the length direction of the slot 140. Thus, the fast assembly and disassembly of the connector 420 can be conveniently realized by the cooperation of the slot 140 and the hook 424. Specifically, the matching part is slidably matched with the slide rail 130, the hook 424 is inserted into the slot 140, and the connecting body 420 is connected to the cavity 100 by matching the hook 424 and the slot 140 without affecting the movement of the connecting body 420 relative to the cavity 100; when the connector 420 needs to be detached, the hook 424 is deformed to disengage the hook 424 from the slot 140, so that the connector 420 can be separated from the cavity 100.

Specifically, as shown in fig. 2, the locking groove 140 is disposed above the sliding rail 130, and the sliding rail 130 is provided with a groove having an arc-shaped cross section, and the cross section of the matching portion is an annular body adapted to the groove. Thus, when the engaging groove 140 is engaged with the engaging hook 424, the annular body can be tightly attached to the groove, so that the connecting body 420 is reliably connected to the cavity 100 in a sliding manner.

On the basis of any one of the embodiments of the connecting body 420, as shown in fig. 5, in an embodiment, the debugging media member 400 is provided with at least two media bodies 410, each media body 410 is connected by the connecting body 420, and two adjacent media bodies 410 are arranged at intervals. Thus, the debug dielectric 400 can be applied to a multi-layer phase shift circuit, and can adjust the dielectric constant of the corresponding phase shift circuit board 200 to meet the adjustment requirements of standing wave ratios of different types of phase shifters.

In addition to any of the above embodiments of the connecting body 420, as shown in fig. 2 and 4, in an embodiment, the connecting body 420 is further provided with a driving portion 426, and the driving portion 426 is disposed away from the medium body 410. In this way, the driving unit 426 facilitates driving the connecting body 420 to move.

Specific examples of the driving part 426 include, but are not limited to, a handle, a force application block, and the like.

In any of the above embodiments, as shown in fig. 3, the phase-shift dielectric element 300 and the debug dielectric element 400 are both plate-shaped structures, and the phase-shift dielectric element 300 and the debug dielectric element 400 are in a staggered fit without interfering with each other.

When the structure is applied to a debugging medium piece 400 corresponding to at least two debugging holes 120, the debugging medium piece 400 can be quickly disassembled and assembled on different debugging holes 120 by using the structure.

In another embodiment, as shown in fig. 6 and 7, the adjustment hole 120 is an internally threaded hole, the adjustment medium member 400 has a threaded rod 430 matching with the internally threaded hole, and the medium body 410 is disposed on the threaded rod 430. Thus, when the standing wave ratio of the phase shifter does not meet the requirement due to the manufacturing error, the screw 430 can be rotated to change the position of the dielectric body 410 in the shielding cavity 110, so as to change the relative dielectric constant of the phase shift circuit, thereby realizing the adjustment of the standing wave ratio of the phase shifter. The internal thread hole and the screw 430 can realize that the standing-wave ratio data can be moved instantly when rotating, namely the standing-wave ratio data can be stopped instantly when not rotating, so that the standing-wave ratio data can not be changed easily, and the reliability of the adjustment result can be ensured.

Further, as shown in fig. 7, in one embodiment, there are at least two debug media pieces 400 and at least two debug holes 120. In this manner, the adjustment of the standing wave ratio can be achieved by changing the position of the debug media 400 on different debug holes 120 relative to the shielded cavity 110.

Optionally, in an embodiment, the dielectric constant of at least two debug media pieces 400 is different. In this way, the standing wave ratio can be adjusted by cooperation between different debug holes 120 and different debug media pieces 400.

In one embodiment, there is also provided a calibration network apparatus including the phase shifter as described above.

The calibration network device integrates the phase shifter, and further can change the relative dielectric constant of the phase shifting circuit by adjusting the position of the dielectric body 410 in the shielding cavity 110 on the basis of realizing more than one functions of power division, filtering, combining and the like, so that the standing-wave ratio of the phase shifter is adjusted, and the standing-wave ratio of the phase shifter can meet the construction requirements of base station antennas. Meanwhile, the phase shifter is adopted by the calibration network device, so that the efficiency of adjusting the standing-wave ratio is higher, the intermodulation hidden danger caused by tin adding and subtracting operation can be avoided, and the antenna performance is favorably improved.

In an embodiment, there is also provided a base station antenna comprising a phase shifter as described above, or a calibration network device as described above.

When the base station antenna is installed, when the standing wave ratio of the phase shifter does not meet the requirement due to manufacturing errors, the relative dielectric constant of the phase shifting circuit can be changed by adjusting the position of the dielectric body 410 in the shielding cavity 110, so that the standing wave ratio of the phase shifter is adjusted, and further the standing wave ratio of the base station antenna is adjusted. In the process, the standing-wave ratio is adjusted in a non-tin adding and subtracting mode, intermodulation hidden danger caused by tin adding and subtracting can be avoided, the disposable passing rate and stability of antenna intermodulation can be improved, and the performance of the antenna can be improved. Meanwhile, the standing-wave ratio can be conveniently adjusted by an operator, and convenience is provided for the construction of the base station antenna. After the standing-wave ratio is adjusted, the downward inclination angle of the antenna can be adjusted by moving the phase-shifting dielectric member 300, so that the radiation of the antenna can cover a preset range. Moreover, by utilizing the base station antenna, the related detection interfaces can be electrified for detection, so that the standing-wave ratio data can be obtained in real time, the standing-wave ratio can be quickly adjusted, the adjustment process is simplified, and the production efficiency and the installation efficiency of the base station antenna can be improved. The base station antenna adopts a calibration network device or a phase shifter, so that the standing-wave ratio can be conveniently adjusted to obtain better antenna performance.

It should be noted that the "dielectric body 410" may be a part of the "debug media piece 400", that is, the "dielectric body 410" and the "other part of the debug media piece 400" are integrally formed and manufactured; the "media member 410" may also be a separate component that is separable from the "rest of the debug media piece 400", i.e., the "media member 410" may be manufactured separately and then integrated with the "rest of the debug media piece 400".

Equivalently, the "body" and the "certain part" can be parts of the corresponding "component", i.e., the "body" and the "certain part" are integrally manufactured with other parts of the "component"; the "part" can be made separately from the "other part" and then combined with the "other part" into a whole. The expressions "a certain body" and "a certain part" in the present application are only one example, and are not intended to limit the scope of the present application for reading convenience, and the technical solutions equivalent to the present application should be understood as being included in the above features and having the same functions.

It should be noted that, the components included in the "unit", "assembly", "mechanism" and "device" of the present application can also be flexibly combined, i.e., can be produced in a modularized manner according to actual needs, so as to facilitate the modularized assembly. The division of the above-mentioned components in the present application is only one example, which is convenient for reading and is not a limitation to the protection scope of the present application, and the same functions as the above-mentioned components should be understood as equivalent technical solutions in the present application.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to," "disposed on," "secured to," or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, when one element is considered as "fixed transmission connection" with another element, the two elements may be fixed in a detachable connection manner or in an undetachable connection manner, and power transmission can be achieved, such as sleeving, clamping, integrally-formed fixing, welding and the like, which can be achieved in the prior art, and is not cumbersome. When an element is perpendicular or nearly perpendicular to another element, it is desirable that the two elements are perpendicular, but some vertical error may exist due to manufacturing and assembly effects. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (11)

1. A phase shifter, comprising:

the testing device comprises a cavity body, a testing device and a testing device, wherein the cavity body is provided with a shielding cavity and a debugging hole which penetrates through the side wall of the shielding cavity, and the shielding cavity is provided with an inlet and an outlet;

the phase-shifting circuit board is fixedly arranged in the cavity and is arranged in the shielding cavity;

the phase-shifting medium piece can move relative to the shielding cavity through the inlet and the outlet; and

and the debugging medium piece comprises a medium body, and the medium body is movably arranged in the shielding cavity through the debugging hole and is used for adjusting the standing-wave ratio of the phase shifter.

2. The phase shifter of claim 1, wherein the phase shift circuit board is provided with a phase shift circuit layer, and the dielectric body is disposed above or below the phase shift circuit layer.

3. The phase shifter as claimed in claim 1, wherein the number of the tuning holes is at least two and the tuning holes are spaced apart from each other on a sidewall of the shielding cavity.

4. The phase shifter according to any one of claims 1 to 3, wherein the debugging medium member further comprises a connector, the connector is fixed to the medium body, so that the medium 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 as claimed in claim 4, wherein the cavity has a slide rail, and the slide rail is spaced from the adjustment hole in the same direction; the connector is provided with a matching part matched with the slide rail.

6. The phase shifter as claimed in claim 5, wherein the cavity further has a slot, the slot and the slide rail are spaced in the same direction, and the slot is in a strip shape; the connector is provided with a clamping hook, and the clamping hook is matched with the clamping groove and can move along the length direction of the clamping groove.

7. The phase shifter according to any one of claims 1 to 3, wherein the tuning hole is an internally threaded hole, the tuning medium member has a screw rod fitted into the internally threaded hole, and the medium member is disposed on the screw rod.

8. The phase shifter as recited in claim 7, wherein there are at least two of said debugging media pieces and at least two of said debugging holes.

9. The phase shifter of claim 8, wherein at least two of the tuning dielectric members have different dielectric constants.

10. A calibration network device comprising a phase shifter according to any one of claims 1 to 9.

11. A base station antenna comprising a phase shifter according to any one of claims 1 to 9 or a calibration network apparatus according to claim 10.

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