Antenna and Its Isolation and Position - Adjusting Structure

Abstract

The present invention provides an antenna and its isolation adjustment structure. The isolation adjustment structure includes an isolation member and a fixing member for supporting the isolation member on the antenna reflector. The adjustment structure further includes a shaft hole formed on the antenna reflector and a plurality of orientation holes arranged circumferentially around the shaft hole; the isolation member includes a connected isolation portion and a plug-in portion; the fixing member has a movable cavity for fixing the plug-in portion of the isolation member at any preset position in its length direction; one end of the fixing member is pivotally arranged in the shaft hole, and the other end is selectively fixedly arranged with any one of the orientation holes. The present invention provides an isolation adjustment structure that can adjust the direction and position of the isolation member on the reflector support surface within a certain range according to requirements, providing a more flexible solution for antenna isolation adjustment.

Description

Technical Field

[0001] The present invention relates to the field of communication technologies, and more particularly, to an antenna and an isolation and positioning structure thereof. Background Art

[0002] When a same antenna has multiple radiation units, signals between the radiation units will be coupled to cause electromagnetic interference, and the isolation degree characterizes the strength of this coupling. The simplest way to adjust the isolation degree is to increase the distance between the radiation units, which will increase the size of the antenna. Therefore, setting obstacles on the coupling path to block electromagnetic coupling is the most commonly used method. Generally, an isolation sheet is set between adjacent radiation units, and the isolation sheet is welded to the reflector. As the field strength and phase of the radiation units of the antenna change, the current on the coupling path changes, and the coupling also changes accordingly, so it is necessary to adjust its isolation degree. However, since the existing isolation sheet is directly fixed on the antenna reflector, once fixed, the distance and angle between the isolation sheet and the antenna radiation unit are determined and cannot be adjusted at any time in actual applications. Summary of the Invention

[0003] The purpose of the present invention is to provide an isolation and positioning structure with a simple structure that can adjust the sitting orientation of the isolation member relative to the antenna reflector.

[0004] Another purpose of the present invention is to provide an antenna adopting the isolation and positioning structure.

[0005] To achieve the above purposes, the present invention provides the following technical solutions:

[0006] An isolation and positioning structure provided by the present invention includes an isolation member, a fixing member for supporting the isolation member on the antenna reflector, and the positioning structure further includes a shaft hole formed on the antenna reflector and a plurality of orientation holes arranged circumferentially around the shaft hole;

[0007] The isolation member includes a connected isolation part and a plug-in part;

[0008] The fixing member has a movable cavity for fixing the plug-in part of the isolation member at any preset position in its length direction;

[0009] One end of the fixing member is pivotally arranged in the shaft hole, and the other end is selectively fixed to any one of the orientation holes.

[0010] Preferably, the plurality of orientation holes are all arranged on the same circumference.

[0011] Preferably, the isolation part and the plug-in part are integrally formed L-shaped components, the plug-in part is parallel to the reflector, and the isolation part stands upright on the reflector.

[0012] Preferably, the fixing member is provided with a clamping post for being inserted into one of the arbitrarily oriented holes. The clamping post is clamped with one of the oriented holes, and the fixing member is pivotally arranged with the shaft hole, and thus the fixing member is fixed on the reflector through mutual cooperation.

[0013] Preferably, a first side wall parallel to the reflector of an active cavity formed by the fixing member integrally extends to form an elastic arm, and the clamping post is arranged on a surface of the elastic arm facing the reflector.

[0014] Further, a plurality of preset slots are arranged along the length direction on one side of the insertion part of the isolation member. On a second side wall of the fixing member, which forms an active cavity and faces the preset slots, a clamping point for being clamped with any one of the preset slots is arranged. When the clamping point is clamped with any one of the preset slots, the isolation member is fixed.

[0015] Further, a pair of notches are formed on both sides of the clamping point on the second side wall to form an elastic tongue on the second side wall, and the clamping point is arranged on an inner wall surface of the elastic tongue.

[0016] Further, a pair of pins are arranged on a surface of the fixing member facing the reflector. The pins penetrate through the shaft hole of the reflector and are buckled thereon to realize pivotal arrangement.

[0017] Further, the fixing member has a cavity forming the active cavity. A pin is arranged at a first position on a bottom surface of a first side wall of the cavity parallel to the reflector for pivotal arrangement with the shaft hole, and a clamping post is arranged at a second position for being clamped and fixed with any one of the oriented holes.

[0018] Further, in the cavity, a clamping point for the insertion part of the isolation member for fixing the isolation member is arranged on a bottom surface of a second side wall opposite to the first side wall.

[0019] Preferably, the fixing member is an integrally formed part.

[0020] Preferably, the number of the oriented holes takes any value between 4 and 30.

[0021] In addition, the present invention provides an antenna, including a reflector and at least one radiation element row fixedly installed on the reflector for radiating antenna signals. Each radiation element row includes a plurality of radiation elements. The reflector is further provided with the above isolation and adjustment structure, and the isolation and adjustment structure is installed between two radiation element rows and / or installed between two adjacent radiation elements in at least one row.

[0022] The beneficial effects brought by the technical solution provided by the present invention are:

[0023] The isolation and position - adjustment structure provided by the present invention, on the one hand, realizes positioning at any position by allowing the insertion part of the isolation part to stretch back and forth in the movable cavity of the fixing part, and can change the position of the isolation part on the support surface of the reflector; on the other hand, by inserting the pin at one end of the fixing part into the shaft hole of the antenna reflector to achieve pivoting, the fixing part can rotate circumferentially around the pivoting axis. After rotating the fixing part to make the orientation of the isolation part on it meet the requirements, the other end of the fixing part can be fixed to a corresponding positioning hole, thereby fixing the direction of the isolation sheet. It can be seen that this position - adjustment structure not only meets the need to adjust the direction of the isolation part by 360 degrees, but also meets the need to appropriately stretch and adjust its sitting position in any given direction. The structure is simple and the adjustable range is wide.

[0024] The isolation and position - adjustment structure is applied to the antenna. Maintenance personnel can flexibly adjust the orientation between the isolation part of the isolation part and the radiation unit according to the change of the field strength and phase of the antenna radiation unit, which is very convenient.

[0025] In addition, since an isolation and position - adjustment structure that can adjust the orientation of the isolation part is provided for the antenna, during the production of the antenna, the needs of antennas with different isolation requirements can be met by applying this standardized structure. Different antennas can be assembled with the isolation and position - adjustment structure of the present invention, and then the orientation of the isolation part in the isolation and position - adjustment structure can be adjusted correspondingly according to the requirements of different antennas with different parameters, thereby improving the versatility of the isolation part. Brief Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention.

[0027] Figure 1 It is an exploded view of the isolation and position - adjustment structure according to an embodiment of the present invention;

[0028] Figure 2 It is a schematic structural diagram of the isolation part according to an embodiment of the present invention;

[0029] Figure 3 It is a schematic structural diagram of the fixing part from one perspective according to an embodiment of the present invention;

[0030] Figure 4 It is a schematic structural diagram of the fixing part from another perspective according to an embodiment of the present invention;

[0031] Figure 5 It is a schematic diagram of the hole - position layout arranged on the reflector according to an embodiment of the present invention to adapt to the isolation and position - adjustment structure;

[0032] Figure 6 It is a cross - sectional view of the isolation and position - adjustment structure according to an embodiment of the present invention after being installed on the reflector;

[0033] Figure 7 A cross-sectional view after installation of the fixing member and the reflector plate in an isolation and position adjustment structure according to an embodiment of the present invention;

[0034] Figure 8 A structural diagram of an isolation and position adjustment structure according to an embodiment of the present invention;

[0035] Figure 9 Another cross-sectional view after installation of an isolation and position adjustment structure according to an embodiment of the present invention and a reflector plate;

[0036] Figure 10 A schematic structural diagram of an isolation and position adjustment structure according to an embodiment of the present invention applied to an antenna. Detailed implementation manners

[0037] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Instead, these embodiments are provided to more thoroughly and completely understand the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not used to limit the protection scope of the present invention.

[0038] The term "including" and its variants used herein are open-ended, that is, "including but not limited to". The term "connected" can be directly connected or indirectly connected through an intermediate component (element). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0039] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish devices, modules or units, and are not used to limit that these devices, modules or units must be different devices, modules or units, nor are they used to limit the order or interdependence relationship of the functions performed by these devices, modules or units.

[0040] An isolation and position adjustment structure provided by the present invention, as Figure 1 shown, includes an isolation member 1 and a fixing member 2 for supporting the isolation member 1 on an antenna reflector plate 3.

[0041] As Figure 2As shown, the spacer 1 includes a connected isolation part 11 and a plug-in part 12; the isolation part 11 is a rectangular metal sheet structure with a smooth surface. On one side of the plug-in part 11, a plurality of preset slots 121 arranged in a straight line are provided along its length direction. The slots 121 are used to cooperate with the fixing part 2 to change the distance between the spacer 1 and the antenna radiation unit. In application, the plug-in part 12 is parallel to the reflector, and the isolation part 11 stands upright on the reflector 3. The isolation part 11 and the plug-in part 12 can be an integrally formed L-shaped component, or two independent components assembled by splicing into a mutually perpendicular structure.

[0042] Reference Figure 3 and Figure 4 , the fixing part 2 includes a first side wall 21 parallel to the reflector 3 and a second side wall 22. When the fixing part 2 is installed on the reflector 3, the first side wall 21 directly contacts the reflector 3, and the second side wall 22 is above the first side wall 21. The first side wall 21, the second side wall 22 and two other unlabeled side walls form a movable cavity 20. The movable cavity 20 is a perforated structure. The internal dimensions of the movable cavity match the dimensions of the plug-in part 12 of the spacer 1, and are used to allow the plug-in part 12 of the spacer 1 to pass through it and can move back and forth, so that the plug-in part 12 of the spacer 1 can be fixed at any preset position along its length direction in the movable cavity.

[0043] On one side of the first side wall 21, an elastic arm 24 integrally extending from the first side wall 21 is also provided. On the side of the elastic arm 24 facing the reflector 3, a clamping post 25 is provided at a position near the end of the elastic arm 24 extending out.

[0044] The bottom surface of the elastic arm 24 and the bottom surface of the first side wall 21 are in the same plane. It protrudes from the first side wall 21, has the largest lateral distance at the connection part with the first side wall 21, and its lateral distance gradually decreases along the direction towards the end of the protruding structure, presenting an arm-like structure.

[0045] The bottom surface of the first side wall 21 is provided with a pin 23. The pin 23 is an elastic snap structure, including a snap part 231 and a support part 232. In this embodiment, the pin 23 is composed of two split-foot members facing each other. The length of the support part 232 is equal to or greater than the thickness of the reflector 3, which is convenient for better snapping the snap part 231 into the bottom of the reflector 3. Reference Figure 6 and Figure 7 , so as to fix the fixing part 2 on the reflector 3, which can rotate around an axis and is not easily separated from the reflector 3.

[0046] Correspondingly, a structure corresponding to the pin 23 of the fixing part 2 is provided on the reflector 3 to fix the fixing part 2. Such asFigure 5 As shown, the isolation and positioning structure further includes a shaft hole 31 formed on the antenna reflector 3 and a plurality of orientation holes 32 arranged circumferentially around the shaft hole 31.

[0047] The radius of the shaft hole 31 matches the size of the support portions 232 of the pair of pins 23. So that after the pins 23 pass through the reflector 3 through the shaft hole 31, the snap portions 232 are snapped to the bottom of the reflector 3, realizing the pivotal installation of the fixing member 2 and the reflector 3, without restricting the rotation of the fixing member 2 circumferentially.

[0048] When the fixing member 2 is snapped into the reflector 3, the fixing member 2 can be circumferentially rotated by an external force with the shaft hole 31 as the center.

[0049] After determining the central position of the fixing member 2, the final orientation of the fixing member 2 is determined in combination with the orientation holes 32 of the reflector 3.

[0050] A latch post 25 is provided on the bottom surface of the elastic arm 24, and the latch post 25 matches the size of the orientation hole 32. After inserting the pin 23 of the fixing member 2 into the shaft hole 31, the desired orientation of the fixing member 2 is selected, and the latch post 25 is snapped into the corresponding orientation hole 32. By inserting the fixing member 2 into the hole shaft 31 and the selected orientation hole 32, the orientation fixation of the fixing member 2 is realized, so as to achieve the purpose that one end of the fixing member 2 is pivotally installed in the shaft hole 31 and the other end is selectively fixed to any one of the orientation holes 32.

[0051] In this embodiment, the fixing member 2 is made of plastic material. Therefore, the elastic arm 24 in an arm-like structure has a certain elasticity. So when taking out the latch post 25 from the elastic arm 24 and then snapping it into other orientation holes 32, there can be a certain elastic space during the operation process, and it is not easy to damage the fixing member 2. In order to facilitate the operator to easily disengage the latch post 25 from the elastic arm 24 from the orientation hole 32, a collapsing structure 26 is provided at the end of the elastic arm 24, and its bottom surface and the bottom surface of the elastic arm 24 are in a stepped shape.

[0052] In other embodiments, the first side wall 21 may not extend out an elastic arm structure. Then, a pin 23 may be provided at a first position on the bottom surface of the first side wall 21 to be pivotally installed with the shaft hole 31, and a latch post 25 may be provided at a suitable second position on the bottom surface of the first side wall 21 to be snap-fitted and fixed with any one of the orientation holes 32, which can also achieve the purpose of determining the orientation of the fixing member by the corresponding pins 23 and latch posts 25 with the shaft hole 31 and the orientation holes 32. Preferably, the first position may be selected as the middle position of the bottom surface of the first side wall 21, and the second position may be selected as the part near the edge of the wall surface of the first side wall 21.

[0053] The multiple directional holes 32 are all arranged on the same circumference. The number of the directional holes 32 is not limited, and it is preferably arbitrarily selected between 4 and 30 for the convenience of calculating the change angle between two adjacent directional holes 32. The density of their arrangement on the same circumference can be evenly distributed, or can be flexibly designed according to the interference coupling degree between specific antenna radiation units and the requirements for the orientation of the spacer 1. For example, the number of directional holes 32 is more in some orientations and less in other orientations.

[0054] Of course, in other embodiments, it is not excluded that the directional holes 32 can be designed as directional circular grooves with the same positioning effect as the multiple directional holes 32 arranged on the same circumference. Their dimensions match the dimensions of the clamping posts 25. According to the requirements of decoupling between antenna radiation units, the orientation of the spacer 1 is adjusted, and the clamping posts 25 are rotated to a predetermined position along with the circular grooves, and then fixed with a fixing device.

[0055] The second side wall 22 is opposite to the first side wall 21, combined with Figure 3 and Figure 4 As shown, a spring tongue 221 structure is formed in the middle of the second side wall 22. A pair of notches are opened on both sides of the spring tongue 221, so that the obtained second side wall 22 looks like a "W" shape from its outer surface. The spring tongue 221 constitutes the inverted "V" shape in the middle of the "W" shape structure. The overall structure of the spring tongue 221 is similar to that of the spring arm 24, and its function is also used to limit the spacer by engaging with the slot holes 121 of the plug-in part 12 of the spacer. Specifically, a clamping point 27 is arranged at a position near the end of the inner wall surface of the spring tongue 221, and its size matches the sizes of the multiple slot holes 121 of the plug-in part 11 to limit the spacer 1. Since the fixing part is made of plastic material, the spring tongue 221 has a certain elasticity due to its similar long triangular structure, which can facilitate the clamping of the clamping point 27 into the corresponding slot holes 121 and the removal of the clamping point 27 from the slot holes 121.

[0056] At a position of the first side wall 21 opposite to the spring tongue 221, a notch 211 is also provided. When the spacer 1 and the fixing part 2 are positioned, it is convenient for the operator to directly observe whether the clamping point 27 is accurately clamped into the corresponding slot holes 121 of the plug-in part 12 through the notch 211, and it is also convenient for the operator to clamp the clamping point 27 into the corresponding slot holes 121 through the notch 211.

[0057] In this embodiment, the fixing part 2 is preferably an integrally formed part, which is convenient for production and manufacturing and is beneficial to cost saving.

[0058] The installation schematic diagrams of the spacer 1, the fixing part 2 and the reflector 3 of the isolation and adjustment structure are referred to Figure 6 andFigure 9 The insertion portion 12 of the spacer 1 is inserted into the movable cavity 20 of the fixing member 2 from the end pointed by the elastic tongue 221 of the fixing member 2. After determining the length that the end of the insertion portion 12 opposite to the isolation portion 11 needs to extend out of the fixing member 2, the clamping point 27 of the elastic tongue 221 is snapped into the slot hole 121 of the insertion portion 12 it aligns with, thereby determining the telescopic position of the spacer 1 in the movable cavity 20 of the fixing member 2.

[0059] Insert the pin 23 of the fixing member 2 into the shaft hole 31 to determine the basic position of the spacer 1. Rotate the fixing member 2 to adjust the angle of the isolation portion 11 until the target angle is reached, thereby determining its orientation. Then, snap the clamping post 25 in the elastic arm 24 into the orientation hole 32 on the reflector 3 it aligns with, thereby determining the orientation of the isolation portion 11.

[0060] According to the above process, both the position and orientation of the isolation adjustment structure have been determined, thereby determining its position on the reflector.

[0061] When it is necessary to adjust the position of the isolation portion 11 and there is no need to adjust its angle, refer to Figure 9 . It is only necessary to remove the clamping point 27 in the elastic tongue 221 of the fixing member 2, move the spacer 1 to change the position of the insertion portion 12 in the movable cavity 20 until the isolation portion 11 reaches the target position, and then snap the clamping point 27 in the elastic tongue 221 into the slot hole 121 it aligns with.

[0062] When it is necessary to adjust the orientation of the isolation portion 11 and there is no need to adjust its position, keep the relative fixed position of the spacer 1 and the fixing member 2, disengage the clamping post 25 of the elastic arm 24 from the orientation hole 32, rotate the fixing member 2, adjust the isolation portion 11 to its target angle, and then snap the clamping post 25 of the elastic arm 24 into the orientation hole 32 it aligns with.

[0063] When it is necessary to adjust both the orientation and position of the isolation portion 11 simultaneously, that is, operate the above steps successively, the position and orientation of the isolation portion 11 can be adjusted according to actual requirements.

[0064] Of course, the above installation steps of the spacer 1, the fixing member 2, and the reflector 3, as well as the steps of adjusting the position and orientation, are only used to illustrate that the isolation adjustment structure has the function of adjusting the position and orientation of the isolation portion 11, and the sequence of its operations is not limited.

[0065] Apply the described isolation adjustment structure to an antenna with multiple radiation units, so as to block or eliminate the coupling between radiation units by adjusting the distance and angle of the isolation portion 11 of the spacer 1 relative to the antenna radiation units as the field strength and phase of the antenna radiation units change.

[0066] Specifically, as Figure 10 shown, the isolation adjustment structure is arranged between two radiation units 41 and 42 of the antenna. By adjusting the telescopic position of the insertion part 12 of the isolation part 1 in the movable cavity 20, the distance between the isolation part 11 and the radiation units 41 and 42 is changed. By rotating the fixing part 2, the orientation angle between the isolation part 11 and the radiation units 41 and 42 is changed. The isolation adjustment structure provided by the present invention can flexibly adjust the distance and angle of the isolation part 1 relative to the radiation unit according to the change of the field strength and phase of the antenna radiation unit, without replacing a new isolation part, improving the versatility of the isolation part.

[0067] The present invention also provides an antenna, including a reflector and at least one radiation unit row fixedly installed on the reflector for radiating antenna signals. Each radiation unit row includes a plurality of radiation units. The reflector also has the isolation adjustment structure provided by the present invention. The isolation adjustment structure is installed between two radiation unit rows and / or between two adjacent radiation units in at least one of the rows.

[0068] The above description is only the preferred embodiment of the present invention and the explanation of the applied technical principle. Those skilled in the art should understand that the scope of the invention involved in the present invention is not limited to the technical solution formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the technical solution formed by mutually replacing the above features with the (but not limited to) technical features having similar functions in the present invention.

Claims

1. An isolation and position - adjusting structure, comprising an isolator and a fixing member for supporting the isolator on an antenna reflector, characterized in that: The position - adjusting structure further includes a shaft hole formed on the antenna reflector and a plurality of orientation holes arranged circumferentially around the shaft hole; The isolator includes a connected isolation portion and a plug - in portion; The fixing member has a movable cavity for fixing the plug - in portion of the isolator at any preset position along its length direction; One end of the fixing member is pivotally arranged in the shaft hole, and the other end is selectively fixed to any one of the orientation holes.

2. The isolation adjustment structure according to claim 1, wherein: The plurality of orientation holes are all arranged on the same circumference.

3. The isolation and adjustment structure according to claim 1, wherein: The isolation portion and the plug - in portion are an integrally formed L - shaped member. The plug - in portion is parallel to the reflector, and the isolation portion stands upright on the reflector.

4. The isolation and position adjustment structure according to claim 1, characterized in that: The fixing member is provided with a clamping post for being inserted into any one of the orientation holes. The clamping post is clamped with one of the orientation holes, and the fixing member is pivotally arranged with the shaft hole, and they cooperate with each other to fix the fixing member on the reflector.

5. The isolation adjustment structure according to claim 4, wherein: One of the first side walls of the movable cavity formed by the fixing member, which is parallel to the reflector, integrally extends to form an elastic arm, and the clamping post is arranged on the surface of the elastic arm facing the reflector.

6. The isolation and positioning structure according to any one of claims 1 to 5, characterized in that: On one side of the plug - in portion of the isolator along its length direction, a plurality of preset slot holes are provided. On the second side wall of the fixing member, which is opposite to the preset slot holes and forms the movable cavity, a clamping point for being clamped with any one of the preset slot holes is provided. When the clamping point is clamped with any one of the preset slot holes, the isolator is fixed.

7. The isolation and adjustment structure according to claim 6, characterized in that: A pair of notches are formed on both sides of the second side wall at the clamping point, so as to form an elastic tongue on the second side wall, and the clamping point is arranged on the inner wall surface of the elastic tongue.

8. The isolation and adjustment structure according to any one of claims 1 to 5, characterized in that: On the surface of the fixing member facing the reflector, a pair of pins are provided. The pins penetrate through the shaft hole of the reflector to be buckled thereon to achieve pivotal arrangement.

9. The isolation adjustment structure according to any one of claims 1 to 5, characterized in that: The fixing member has a cavity forming the movable cavity. At a first position on the bottom surface of the first side wall of the cavity, which is parallel to the reflector, a pin is provided to be pivotally arranged with the shaft hole, and at a second position, a clamping post is provided to be clamped and fixed with any one of the orientation holes.

10. The isolation and adjustment structure according to claim 9, wherein: In the cavity, on the bottom surface of the second side wall opposite to the first side wall, a clamping point for fixing the plug - in portion of the isolator is provided.

11. The isolation adjustment structure according to claim 9, wherein: The fixing member is an integrally formed part.

12. The isolation and adjustment structure according to any one of claims 1 to 5, characterized in that: The number of the orientation holes can take any value between 4 and 30.

13. An antenna, comprising a reflector and at least one radiation element column fixedly mounted on the reflector for radiating antenna signals, each radiation element column comprising a plurality of radiation elements, characterized in that: The reflector is further provided with the isolation and position - adjusting structure according to any one of claims 1 to 12. The isolation and position - adjusting structure is installed between two radiation element columns and / or between two adjacent radiation elements in at least one of the columns.

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