Bipolar radiation oscillator and antenna

Abstract

The utility model relates to a bipolar radiation oscillator and an antenna. The bipolar radiation oscillator comprises a pedestal; the multiple pairs of radiation arms are arranged around the base, each pair of radiation arms is provided with a feeding point, the first radiation arms arranged at intervals in the multiple pairs of radiation arms form first polarization, and the second radiation arms form second polarization different from the first polarization; a plurality of baluns corresponding to the plurality of pairs of radiation arms, wherein each balun is arranged between the base and one pair of radiation arms in the plurality of pairs of radiation arms; first and second combining units; the matching cables are respectively connected between the feeding point associated with the first polarization and the first combining unit; the matching cables are respectively connected between the feeding point associated with the second polarization and the second combining unit; the matching cables connected at the at least two feed points associated with the first polarization are combined at the first combining unit and the matching cables connected at the at least two feed points associated with the second polarization are combined at the second combining unit.

Description

Technical Field

[0001] The utility model relates to the field of communications, and more specifically, to a dipole radiating element with a combining unit and an antenna comprising the dipole radiating element. Background Art

[0002] In mobile communication network coverage, the antenna is one of the key devices for network coverage, and the radiator in the antenna is the most core component of the antenna. The performance of the radiator directly determines the performance of the antenna, which in turn affects the quality of network coverage.

[0003] One type of radiating element in the prior art is mainly electrically connected by welding a matching cable to the radiating element. In this case, the outer conductors of four matching cables need to be welded to the balun of the radiating element to realize signal propagation, thereby achieving the purpose of antenna signal transmission.

[0004] Since four matching cables need to be led out from the back of the reflector of this type of radiator, and an additional power divider or feed slot is required for connection, if these components are not fixed stably, the passive intermodulation (PIM) electrical performance indicators of the overall antenna will deteriorate. In addition, the increased number of solder joints will make it difficult for production welders to operate during the welding process, resulting in complex operations and other disadvantages. Utility Model Content

[0005] In order to solve the above problems, namely, excessive use of matching cables for existing radiating elements, resulting in unstable passive intermodulation (PIM) performance, too many solder joints, and a complicated manufacturing process, the inventor of the utility model proposes a novel two-point fed radiating element structure, which uses two combining units to combine the cables first, and then connects to other components of the antenna (such as a reflector) after simplifying the cables, thereby simplifying the manufacturing process of the radiating element and maintaining relatively stable product consistency and passive intermodulation (PIM) performance of the radiating element.

[0006] Based on this, the first aspect of the present invention proposes a dipole radiating vibrator, the dipole radiating vibrator comprising:

[0007] Pedestal;

[0008] A plurality of pairs of radiating arms, the plurality of pairs of radiating arms being arranged around the base and each pair of radiating arms having a feeding point, wherein first radiating arms arranged at intervals in the plurality of pairs of radiating arms form a first polarization and second radiating arms arranged at intervals in the plurality of pairs of radiating arms form a second polarization different from the first polarization;

[0009] A plurality of baluns corresponding to the plurality of pairs of radiating arms, each of the plurality of baluns being disposed between the base and a pair of radiating arms in the plurality of pairs of radiating arms;

[0010] A first combining unit and a second combining unit; and

[0011] at least two matching cables respectively connected between at least two feeding points associated with the first polarization and the first combining unit, and at least two matching cables respectively connected between at least two feeding points associated with the second polarization and the second combining unit,

[0012] The matching cables connected at least two feeding points associated with the first polarization are combined at the first combining unit, and the matching cables connected at least two feeding points associated with the second polarization are combined at the second combining unit.

[0013] In the dipole radiator according to the utility model, due to the use of the first combining unit and the second combining unit, the matching cables connected at the two feeding points associated with the first polarization are combined at the first combining unit and the matching cables connected at the two feeding points associated with the second polarization are combined at the second combining unit, thereby being able to reduce the use of matching cables by nearly half, thereby reducing assembly welding and improving the consistency of the radiator product and the stability of the passive intermodulation (PIM) performance.

[0014] In one embodiment of the present invention, the multiple pairs of radiation arms are configured as four pairs of radiation arms, two pairs of radiation arms arranged at intervals among the four pairs of radiation arms form the first polarization and the other two pairs of radiation arms form the second polarization, and the multiple baluns are configured as four baluns, each of the four baluns is arranged between the base and a pair of radiation arms among the four pairs of radiation arms. In this way, the dipole radiator according to the present invention can be realized at a lower cost and lower manufacturing complexity.

[0015] In one embodiment of the present invention, the dipole radiator further includes:

[0016] A first feeder cable and a second feeder cable, wherein the first feeder cable is electrically connected to the inner conductor of the first combiner unit, and wherein the second feeder cable is electrically connected to the inner conductor of the second combiner unit. In this way, each polarized signal can be led out through the first feeder cable and the second feeder cable after being combined by the combiner unit, without having to directly connect multiple matching cables to other components of the antenna, thereby further reducing assembly welding and improving the consistency of the radiating element product and the stability of the passive intermodulation (PIM) performance.

[0017] In one embodiment of the present invention, the outer conductor of the first combining unit and the outer conductor of the second combining unit have a first metal connection portion at the other end away from the feeding point, which matches the shape of the outer conductor of the first feeder cable or the outer conductor of the second feeder cable. In this way, it can be ensured that the electrical signal can be protected at the connection between the combining unit and the feeder cable in a manner similar to that of a matching cable, so that the electrical performance of the dipole radiator according to the present invention can be better guaranteed.

[0018] In one embodiment of the present invention, the first combining unit and the second combining unit include a feeding portion, the feeding portion includes an inner conductor, and the inner conductor is configured as an L-shaped feeding plate. In this way, it can be ensured that the inner conductor of the matching cable can be well combined at one end of the combining unit and can be well connected to the feeding cable at the other end on the other side of the dipole radiating element.

[0019] In one embodiment of the utility model, the feeder includes an insulator, the insulator is connected to the inner conductor, the insulator is provided with a clamping portion, and the feeder is detachably connected to the base through the clamping portion. In this way, the feeder can be conveniently and flexibly installed, and when the feeder has performance problems, it can be conveniently replaced. Since only the feeder needs to be replaced, the maintenance cost of the product can be reduced.

[0020] In one embodiment of the utility model, the outer conductor of the first combining unit and the outer conductor of the second combining unit are respectively provided with a second metal connection part for welding the outer conductor of the matching cable associated therewith. In this way, it can be ensured that the electrical signal can obtain signal protection similar to that of the matching cable at the connection between the combining unit and the matching cable, so that the electrical performance of the dipole radiating oscillator according to the utility model can be better guaranteed. Preferably, in one embodiment of the utility model, the second metal connection part is constructed as a protrusion extending radially outward from the cross section of the first combining unit or the second combining unit. More preferably, in one embodiment of the utility model, the protrusion is constructed with a semicircular accommodating portion to accommodate the outer conductor of the matching cable.

[0021] Preferably, in one embodiment of the present invention, the second metal connection portion is constructed to be independently constructed from the outer conductor of the first combining unit and / or the outer conductor of the second combining unit. More preferably, in one embodiment of the present invention, the second metal connection portion is integrally formed with the base and / or the balun.

[0022] In one embodiment of the present invention, the first combining unit and the second combining unit pass through the base and / or the balun. In this way, the position of the matching cable can be flexibly set, and the electrical signal can be guided to the other side of the dipole radiating element according to the present invention through the first combining unit and the second combining unit, and then conducted to the feeding cable.

[0023] In one embodiment of the present invention, the inner conductor of the first combining unit and the inner conductor of the second combining unit have a groove at the other end away from the feeding point. In this way, the inner conductor of the feeder cable can be electrically connected to the inner conductor of the first combining unit and the inner conductor of the second combining unit via the groove, thereby ensuring the reliability of the electrical connection.

[0024] In one embodiment of the present invention, the outer conductor of the first combining unit and the outer conductor of the second combining unit have an opening at the other end. In this way, it can be ensured that when the inner conductor of the feeder cable and the inner conductor of the first combining unit and / or the inner conductor of the second combining unit are connected via a welding process, for example, the expansion of the surrounding gas will not have an adverse effect on the electrical connection of the dipole radiating element according to the present invention.

[0025] In an embodiment of the present invention, the outer conductor of the first combining unit and the outer conductor of the second combining unit have a square or cylindrical outer contour surface.

[0026] In an embodiment of the present invention, the first combining unit and the second combining unit further include an insulating medium layer disposed between the inner conductor and the outer conductor.

[0027] In one embodiment of the present invention, at least two matching cables connected between at least two feeding points associated with the first polarization and the first combining unit are of equal length, and at least two matching cables connected between at least two feeding points associated with the second polarization and the second combining unit are of equal length.

[0028] A second aspect of the present invention provides an antenna, which includes the dipole radiation element provided according to the first aspect of the present invention.

[0029] In one embodiment of the present invention, the antenna further includes a reflector.

[0030] In one embodiment of the present invention, the antenna further includes a phase shifting network.

[0031] To summarize, with the aid of the dipole radiating element and antenna disclosed in accordance with the present invention, due to the use of the first combining unit and the second combining unit, the matching cables connected at the two feeding points associated with the first polarization are combined at the first combining unit and the matching cables connected at the two feeding points associated with the second polarization are combined at the second combining unit, thereby being able to reduce the use of matching cables by nearly half, thereby being able to reduce assembly welding and improving the consistency of the radiating element product and the stability of the passive intermodulation (PIM) performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The features, advantages and other aspects of the various embodiments of the present invention will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Several embodiments of the present invention are shown in an exemplary and non-limiting manner. In the accompanying drawings:

[0033] Figure 1A A front schematic diagram of a dipole radiation oscillator 100 according to an embodiment of the utility model is shown;

[0034] Figure 1B FIG. 1 shows a schematic diagram of the reverse side of a dipole radiating vibrator 100 according to an embodiment of the utility model;

[0035] Figure 2A A schematic diagram showing the connection between the matching cable and the combining unit in the dipole radiating element 100 according to an embodiment of the utility model is shown;

[0036] Figure 2B A schematic diagram showing the connection between the feeding cable and the combining unit in the dipole radiating element 100 according to an embodiment of the utility model is shown;

[0037] Figure 3A A front schematic diagram of a dipole radiation vibrator 300 according to another embodiment of the utility model is shown; and

[0038] Figure 3B FIG. 2 shows a schematic diagram of the reverse side of a dipole radiating element 300 according to another embodiment of the present invention. DETAILED DESCRIPTION

[0039] The various exemplary embodiments of the present invention are described in detail below with reference to the accompanying drawings. Although the exemplary methods and devices described below include software and / or firmware executed on hardware among other components, it should be noted that these examples are merely illustrative and should not be regarded as restrictive. For example, it is considered that any or all hardware, software and firmware components can be implemented exclusively in hardware, exclusively in software, or in any combination of hardware and software. Therefore, although exemplary methods and devices have been described below, it should be readily understood by those skilled in the art that the examples provided are not intended to limit the manner in which these methods and devices are implemented.

[0040] In addition, the flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions and operations of the methods and systems according to various embodiments of the present invention. It should be noted that the functions marked in the boxes may also occur in an order different from that marked in the accompanying drawings. For example, two boxes represented in succession may actually be executed substantially in parallel, or they may sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the flowchart and / or block diagram, and the combination of boxes in the flowchart and / or block diagram, may be implemented using a dedicated hardware-based system that performs a specified function or operation, or may be implemented using a combination of dedicated hardware and computer instructions.

[0041] The terms "including", "comprising" and similar terms used in the present invention are open terms, i.e., "including / including but not limited to", indicating that other contents may also be included. The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment", etc.

[0042] As mentioned above, in the prior art, too many matching cables are used for the radiating element, resulting in unstable passive intermodulation (PIM) performance, too many solder joints, and a complicated manufacturing process. The inventor of the utility model proposes a novel two-point fed radiating element structure, which uses two combining units to combine the cables first, and then connects to other components of the antenna (such as a reflector) after simplifying the cables. This simplifies the manufacturing process of the radiating element and allows the product consistency and passive intermodulation (PIM) performance of the radiating element to be maintained relatively stable.

[0043] In summary, the first aspect of the utility model proposes a dipole radiating element, which includes: a base; a plurality of pairs of radiating arms, the plurality of pairs of radiating arms are arranged around the base and each pair of radiating arms has a feeding point, wherein the first radiating arms arranged at intervals in the plurality of pairs of radiating arms form a first polarization and the second radiating arms arranged at intervals in the plurality of pairs of radiating arms form a second polarization different from the first polarization; a plurality of baluns corresponding to the plurality of pairs of radiating arms, each of the plurality of baluns being arranged between the base and a pair of radiating arms in the plurality of pairs of radiating arms; a first combining unit and a second combining unit; and at least two matching cables respectively connected between at least two feeding points associated with the first polarization and the first combining unit and at least two matching cables respectively connected between at least two feeding points associated with the second polarization and the second combining unit, wherein the matching cables connected at the at least two feeding points associated with the first polarization are combined at the first combining unit and the matching cables connected at the at least two feeding points associated with the second polarization are combined at the second combining unit. In the dipole radiator according to the utility model, due to the use of the first combining unit and the second combining unit, the matching cables connected at the two feeding points associated with the first polarization are combined at the first combining unit and the matching cables connected at the two feeding points associated with the second polarization are combined at the second combining unit, thereby being able to reduce the use of matching cables by nearly half, thereby reducing assembly welding and improving the consistency of the radiator product and the stability of the passive intermodulation (PIM) performance.

[0044] The following will describe the dipole radiator proposed by the present invention with reference to the accompanying drawings. Figure 1A FIG. 4 shows a front view of a dipole radiation vibrator 100 according to an embodiment of the present invention. Figure 1B FIG. 1 shows a schematic diagram of the reverse side of a dipole radiating element 100 according to an embodiment of the present invention. Figure 1A and Figure 1B It can be seen that the dipole radiator 100 proposed according to the utility model includes: a base 110; a plurality of pairs of radiating arms 121, 122, 123 and 124, the plurality of pairs of radiating arms 121, 122, 123 and 124 are arranged around the base 110 and each pair of radiating arms has a feeding point (for example, located in the middle of a pair of radiating arms, for example, located at each corner of the square radiator, for example, marked at Figure 1B The position points 161 and 162 in Figure 1BOnly one pair, i.e., two feeding points, are identified, but those skilled in the art should understand that each pair of radiating arms has one feeding point), wherein first radiating arms (e.g., radiating arms 121 and 123) spaced apart in the multiple pairs of radiating arms 121, 122, 123, and 124 form a first polarization and second radiating arms (e.g., radiating arms 122 and 124) spaced apart in the multiple pairs of radiating arms 121, 122, 123, and 124 form a second polarization different from the first polarization; and multiple baluns 131, 132, 133, and 134 corresponding to the multiple pairs of radiating arms 121, 122, 123, and 124, each of the multiple baluns 131, 132, 133, and 134 being disposed between the base 110 and the multiple pairs of radiating arms 121, 122, 123 and 124; a first combining unit 141 and a second combining unit 142 (herein, the first combining unit 141 and the second combining unit 142 are, for example, constructed as combiners); and at least two matching cables respectively connected between at least two feeding points associated with the first polarization and the first combining unit 141 and at least two matching cables respectively connected between at least two feeding points associated with the second polarization and the second combining unit, wherein the matching cables connected at the at least two feeding points associated with the first polarization are combined at the first combining unit 141 and the matching cables connected at the at least two feeding points associated with the second polarization are combined at the second combining unit 142. In this way, two matching cables belonging to the same polarization direction can be combined at one combining unit, and then pass through the dipole radiation oscillator 100 to the other side, and are connected out via, for example, feeding cables 151 and 152. Therefore, a new type of two-point feeding radiating element structure is proposed, which adopts two combining units to combine the circuit first, and then connects to other components of the antenna (such as reflector) after simplifying the cables. This simplifies the manufacturing process of the radiating element and makes the product consistency and passive intermodulation (PIM) performance of the radiating element remain relatively stable.

[0045] exist Figure 1A and Figure 1B In the illustrated embodiment, the dipole radiating element proposed in the present invention has four pairs of radiating arms 121, 122, 123 and 124 and four baluns 131, 132, 133 and 134, but those skilled in the art should understand that the four pairs of radiating arms or four baluns are merely exemplary and non-restrictive, and other numbers of radiating arms and baluns are also feasible, as long as a dipole radiating element 100 with two polarities can be formed. That is, in Figure 1A and Figure 1BIn the dipole radiating element 100 shown, the multiple pairs of radiating arms are constructed as four pairs of radiating arms 121, 122, 123 and 124, two pairs of radiating arms 121 and 123 arranged at intervals among the four pairs of radiating arms 121, 122, 123 and 124 form the first polarization and the other two pairs of radiating arms 122 and 124 form the second polarization, and the multiple baluns are constructed as four baluns 131, 132, 133 and 134, each of the four baluns 131, 132, 133 and 134 is arranged between the base 110 and a pair of radiating arms among the four pairs of radiating arms 121, 122, 123 and 124. In this way, the dipole radiating element 100 according to the present invention can be realized at a lower cost and lower manufacturing complexity.

[0046] In addition, from Figure 1B It can also be seen that the dipole radiating element 100 further includes: a first feeding cable 151 and a second feeding cable 152, wherein the first feeding cable 151 is electrically connected to the inner conductor of the first combining unit 141, and wherein the second feeding cable 152 is electrically connected to the inner conductor of the second combining unit 142. In this way, each polarized signal can be led out through the first feeding cable 151 and the second feeding cable 152 after being combined by the combining unit 141 or 142, without having to directly connect multiple matching cables to other components of the antenna, thereby further reducing assembly welding and improving the consistency of the dipole radiating element product and the stability of the passive intermodulation PIM performance.

[0047] In order to further illustrate the connection structure between the combining unit, the matching cable and the feeding cable, Figure 2A A schematic diagram showing the connection between the matching cable and the combining unit in the dipole radiating element 100 according to an embodiment of the utility model is shown, and Figure 2B FIG. 1 is a schematic diagram showing the connection between the feeding cable and the combining unit in the dipole radiating element 100 according to an embodiment of the present invention. Figure 2A and Figure 2BIt can be seen that the inner conductor of the first combining unit 141 and the inner conductor of the second combining unit 142 are constructed as an L-shaped feeding plate. The longer side, for example, can pass through at least a portion of the base 110 of the dipole radiating element or the balun 131, 132, 133 or 144 according to the utility model, while the shorter side forms a flat area so that the inner conductor of the matching cable can be connected thereto. Here, the shorter side can have either a common flat area 1411 or, for example, two forks so as to connect the inner conductors 1311 and 1331 of the two matching cables. In this way, it can be ensured that the inner conductor of the matching cable can be well combined at one end of the combining unit 141 or 142 and can be well connected to the feeding cable at the other end on the other side of the dipole radiating element. In addition, it can be seen that the outer conductor of the first combining unit 141 and the outer conductor of the second combining unit 142 have a first metal connection portion that matches the shape of the outer conductor of the first feeding cable 151 or the outer conductor of the second feeding cable 152 at the other end away from the feeding point (for example, located on the opposite side of the bipolar radiation oscillator 100 proposed in the utility model). Figure 1A and Figure 1B As shown, the first metal connection portion is constructed as a semicircular groove, so that the semicircular outer conductors of the feeder cables 151 and 152 can fit into the semicircular groove, which is convenient for installation and subsequent possible welding operations. In this way, it can be ensured that the electrical signal can be protected at the connection between the combiner units 141, 142 and the feeder cables 151, 152 in a manner similar to that of a matching cable, so that the electrical performance of the dipole radiator 100 according to the utility model can be better guaranteed. In addition, as Figure 2A As shown, the outer conductor of the first combining unit 141 and the outer conductor of the second combining unit 142 are respectively provided with second metal connecting parts 1412 and 1413 for welding the outer conductor of the matching cable associated therewith. Here, the second metal connecting parts 1412 and 1413 are constructed as protrusions extending radially outward from the cross section of the first combining unit 141 or the second combining unit 142. Preferably, the protrusion is constructed with a semicircular accommodating part to accommodate the outer conductor of the matching cable. In this way, it can be ensured that the electrical signal can obtain signal protection similar to that of the matching cable at the connection between the combining units 141 and 142 and the matching cable, so that the electrical performance of the dipole radiating oscillator 100 according to the utility model can be better guaranteed.

[0048] In addition, if Figure 2AAs shown, the first combining unit and the second combining unit include a feeding part, which is detachably connected to the base or the balun, and the feeding part includes an inner conductor 1411 and an insulator 1414, and the insulator 1414 is connected to the inner conductor 1411. In this embodiment, the insulator 1414 is provided with a hollow part, and the inner conductor 1411 passes through the hollow part and is fixedly connected to the insulator 1414. The inner conductor 1411 and the insulator 1414 can be removed from the base or the balun. For this purpose, the insulator 1414 can, for example, have a clamping part, by means of which the feeding part can be conveniently clamped into the base and / or the balun, and the feeding part can also be conveniently taken out from the base and / or the balun and replaced. Furthermore, the second metal connection parts 1412 and 1413 are constructed to be independently constructed with the outer conductor of the first combining unit and / or the outer conductor of the second combining unit, that is, they are not constructed to be integrally formed with the outer conductor of the combining unit, let alone the inner conductor and the insulator of the combining unit, but are constructed as relatively independent components. More preferably, in the embodiment shown in FIG. 2 of the utility model, the second metal connection parts 1412 and / or 1413 are integrally formed with the base 110 and / or the baluns 131, 132, 133 and 134. Specifically, in the embodiment shown in FIG. 2, the second metal connection parts 1412 and / or 1413 are integrally formed with the base 110. Here, in this way, the height space occupied by the outer conductor of the combining unit can be reduced, which facilitates the connection of the dipole radiating oscillator 100 according to the utility model with other communication devices and saves installation space. In addition, providing relatively independent second metal connecting parts 1412 and / or 1413 can also more firmly fix the matching cable, and the welding process will be more convenient and the welding consistency will be improved.

[0049] Here, the first combining unit 141 and the second combining unit 142 pass through the base 110 and / or the baluns 131, 132, 133 and 134. In this way, the position of the matching cable can be flexibly set, and the electrical signal can be guided to the other side of the dipole radiation oscillator 100 according to the present invention through the first combining unit 141 and the second combining unit 142, and conducted to the feeding cables 151 and 152.

[0050] like Figure 2BAs shown, the inner conductor of the first combining unit 141 and the inner conductor of the second combining unit 142 have a groove at the other end away from the feeding point (for example, located on the opposite side of the dipole radiating oscillator proposed in the present invention). In this way, the inner conductor of the feeding cable 151 or 152 can be electrically connected to the inner conductor of the first combining unit 141 and the inner conductor of the second combining unit 142 via the groove, thereby ensuring the reliability of the electrical connection. In addition, preferably, the outer conductor of the first combining unit 141 and the outer conductor of the second combining unit 142 have an opening, such as one or more notches, at the other end (for example, located on the opposite side of the dipole radiating oscillator proposed in the present invention). In this way, it can be ensured that when the inner conductor of the feeding cable and the inner conductor of the first combining unit and / or the inner conductor of the second combining unit are connected, for example, via a welding process, the expansion of the surrounding gas will not have an adverse effect on the electrical connection of the dipole radiating oscillator according to the present invention.

[0051] exist Figure 1A , Figure 1B , Figure 2A and Figure 2B In the illustrated embodiment, the outer conductor of the first combining unit 141 and the outer conductor of the second combining unit 142 have a cylindrical outer contour surface. Preferably, the first combining unit 141 and the second combining unit 142 further have an insulating dielectric layer disposed between the inner conductor and the outer conductor. More preferably, at least two matching cables connected between at least two feeding points associated with the first polarization and the first combining unit are of equal length, and at least two matching cables connected between at least two feeding points associated with the second polarization and the second combining unit are of equal length.

[0052] In addition, the second aspect of the present invention proposes an antenna, the antenna comprising the dipole radiating element according to the first aspect of the present invention. Preferably, in one embodiment of the present invention, the antenna further comprises a reflector. More preferably, in one embodiment of the present invention, the antenna further comprises a phase shifting network.

[0053] The outer contour of the above-mentioned combining unit can be set to be square in addition to being circular. Figure 3A FIG. 4 shows a front view of a dipole radiation vibrator 300 according to another embodiment of the present invention. Figure 3B FIG. 2 shows a schematic diagram of the reverse side of a dipole radiating element 300 according to another embodiment of the present invention. Figure 3A and Figure 3BIt can be seen that the dipole radiating element 300 proposed according to the present invention includes: a base 310; a plurality of pairs of radiating arms 321, 322, 323 and 324, wherein the plurality of pairs of radiating arms 321, 322, 323 and 324 are arranged around the base 310 and each pair of radiating arms has a feeding point (for example, located in the middle of a pair of radiating arms), wherein the first radiating arms (for example, radiating arms 321 and 323) arranged at intervals among the plurality of pairs of radiating arms 321, 322, 323 and 324 form a first polarization and the second radiating arms (for example, radiating arms 322 and 324) arranged at intervals among the plurality of pairs of radiating arms 321, 322, 323 and 324 form a second polarization different from the first polarization; a plurality of baluns 331, 332, 333 and 334 corresponding to the plurality of pairs of radiating arms 321, 322, 323 and 324, wherein the plurality of baluns 33 Each balun in 1, 332, 333 and 334 is arranged between the base 310 and a pair of radiating arms among the multiple pairs of radiating arms 321, 322, 323 and 324; a first combining unit 341 and a second combining unit 342 (herein, the first combining unit 341 and the second combining unit 342 are, for example, constructed as a combiner); and at least two matching cables respectively connected between at least two feeding points associated with the first polarization and the first combining unit 341 and at least two matching cables respectively connected between at least two feeding points associated with the second polarization and the second combining unit, wherein the matching cables connected at the at least two feeding points associated with the first polarization are combined at the first combining unit 341 and the matching cables connected at the at least two feeding points associated with the second polarization are combined at the second combining unit 342. Thus, two matching cables belonging to the same polarization direction can be combined at a combining unit, and then pass through the dipole radiating element 300 to the other side, and are connected through, for example, feeding cables 351 and 352. Therefore, a new type of two-point feeding radiating element structure is proposed, which uses two combining units to combine first, and then connects to other parts of the antenna (such as a reflector) after simplifying the cables, thereby simplifying the manufacturing process of the radiating element, and making the product consistency and passive intermodulation PIM performance of the radiating element relatively stable.

[0054] exist Figure 3A and Figure 3BIn the illustrated embodiment, the dipole radiating element proposed in the present invention has four pairs of radiating arms 321, 322, 323 and 324 and four baluns 331, 332, 333 and 334, but those skilled in the art should understand that the four pairs of radiating arms or four baluns are merely exemplary and non-restrictive, and other numbers of radiating arms and baluns are also feasible, as long as a dipole radiating element 300 with two polarities can be formed. That is, in Figure 3A and Figure 3B In the dipole radiating element 300 shown, the multiple pairs of radiating arms are constructed as four pairs of radiating arms 321, 322, 323 and 324, two pairs of radiating arms 321 and 323 arranged at intervals among the four pairs of radiating arms 321, 322, 323 and 324 form the first polarization and the other two pairs of radiating arms 322 and 324 form the second polarization, and the multiple baluns are constructed as four baluns 331, 332, 333 and 334, each of the four baluns 331, 332, 333 and 334 is arranged between the base 310 and a pair of radiating arms among the four pairs of radiating arms 321, 322, 323 and 324. In this way, the dipole radiating element 300 according to the present invention can be realized at a lower cost and lower manufacturing complexity.

[0055] In addition, from Figure 3B It can also be seen that the dipole radiating element 300 further includes: a first feeding cable 351 and a second feeding cable 352, wherein the first feeding cable 351 is electrically connected to the inner conductor of the first combining unit 341, and wherein the second feeding cable 352 is electrically connected to the inner conductor of the second combining unit 342. In this way, each polarized signal can be led out through the first feeding cable 351 and the second feeding cable 352 after being combined by the combining unit 341 or 342, without having to directly connect multiple matching cables to other components of the antenna, thereby further reducing assembly welding and improving the consistency of the dipole radiating element product and the stability of the passive intermodulation PIM performance.

[0056] Further, from Figure 3A and Figure 3BIt can be seen that the inner conductor of the first combining unit 341 and the inner conductor of the second combining unit 342 are constructed as an L-shaped feeding plate. The longer side, for example, can pass through at least a portion of the base 310 of the dipole radiating oscillator or the balun 331, 332, 333 or 344 according to the utility model, while the shorter side forms a flat area so that the inner conductor of the matching cable can be connected thereto. Here, the shorter side can have either a common flat area or, for example, two forks so as to connect the inner conductors of two matching cables. In this way, it can be ensured that the inner conductor of the matching cable can be well combined at one end of the combining unit 341 or 342 and can be well connected to the feeding cable at the other end on the other side of the dipole radiating oscillator. In addition, it can be seen that the outer conductor of the first combining unit 341 and the outer conductor of the second combining unit 342 have a first metal connection portion that matches the shape of the outer conductor of the first feeding cable 351 or the outer conductor of the second feeding cable 352 at the other end away from the feeding point (for example, located on the opposite side of the bipolar radiating oscillator 300 proposed in accordance with the present invention). In this way, it can be ensured that the electrical signal can be protected at the connection between the combining units 341, 342 and the feeding cables 351, 352 in a signal protection similar to that of a matching cable, thereby enabling the electrical performance of the bipolar radiating oscillator 300 according to the present invention to be better guaranteed. In addition, as Figure 3A As shown, the outer conductor of the first combining unit 341 and the outer conductor of the second combining unit 342 are respectively provided with a second metal connection part for welding the outer conductor of the matching cable associated therewith. In this way, it can be ensured that the electrical signal can be protected similar to the signal of the matching cable at the connection between the combining units 341 and 342 and the matching cable, so that the electrical performance of the dipole radiating element 300 according to the utility model can be better guaranteed.

[0057] Here, the first combining unit 341 and the second combining unit 342 pass through the base 310 and / or the baluns 331, 332, 333 and 334. In this way, the position of the matching cable can be flexibly set, and the electrical signal can be guided to the other side of the dipole radiation oscillator 300 according to the utility model via the first combining unit 341 and the second combining unit 342, and conducted to the feeding cables 351 and 352.

[0058] like Figure 3BAs shown, the inner conductor of the first combining unit 341 and the inner conductor of the second combining unit 342 have a groove at the other end away from the feeding point (for example, located on the opposite side of the dipole radiation oscillator proposed in the present invention). In this way, the inner conductor of the feeding cable 351 or 352 can be electrically connected to the inner conductor of the first combining unit 341 and the inner conductor of the second combining unit 342 via the groove, thereby ensuring the reliability of the electrical connection. In addition, preferably, the outer conductor of the first combining unit 341 and the outer conductor of the second combining unit 342 have an opening, such as one or more notches, at the other end (for example, located on the opposite side of the dipole radiation oscillator proposed in the present invention). In this way, it can be ensured that when the inner conductor of the feeding cable and the inner conductor of the first combining unit and / or the inner conductor of the second combining unit are connected, for example, via a welding process, the expansion of the surrounding gas will not have an adverse effect on the electrical connection of the dipole radiation oscillator according to the present invention.

[0059] exist Figure 3A and Figure 3B In the illustrated embodiment, the outer conductor of the first combining unit 341 and the outer conductor of the second combining unit 342 have a square outer contour surface. Figure 3B It can be seen that the outer conductor of the first combining unit 341 and the outer conductor of the second combining unit 342 are, for example, rectangular in shape, i.e., a cuboid, and the two sides of the cuboid are, for example, connected, i.e., only the other two sides have conductor walls. The conductor walls on these two sides are, for example, electrically connected to the outer conductors of the feeder cables 351 and 352. In order to adapt to such an electrical connection, a notch is provided on the conductor wall so that, for example, the circular feeder cables 351 and 352 can be installed here in a shape-fitting manner, for example, by welding. When connecting, since the places other than the two conductor walls are connected, the gas expansion formed during welding can be discharged through the transparent part where the conductor wall is not provided, and thus will not affect the welding quality of the connection, ensuring that the connection is sufficient so that the feeder cables 351 and 352 can work normally. In addition, the square outer contour surface also makes the fixing of the outer conductor of the first combining unit 341 and the outer conductor of the second combining unit 342 more secure and convenient, which can simplify the assembly process.

[0060] Preferably, the first combining unit 341 and the second combining unit 342 further have an insulating dielectric layer disposed between the inner conductor and the outer conductor. More preferably, at least two matching cables connected between at least two feeding points associated with the first polarization and the first combining unit are of equal length, and at least two matching cables connected between at least two feeding points associated with the second polarization and the second combining unit are of equal length.

[0061] To summarize, with the aid of the dipole radiating element and antenna disclosed in accordance with the present invention, due to the use of the first combining unit and the second combining unit, the matching cables connected at the two feeding points associated with the first polarization are combined at the first combining unit and the matching cables connected at the two feeding points associated with the second polarization are combined at the second combining unit, thereby being able to reduce the use of matching cables by nearly half, thereby being able to reduce assembly welding and improving the consistency of the radiating element product and the stability of the passive intermodulation (PIM) performance.

[0062] Although embodiments of the present invention have been described with reference to several specific embodiments, it should be understood that the embodiments of the present invention are not limited to the disclosed specific embodiments. Embodiments of the present invention are intended to cover various modifications and equivalent arrangements included in the spirit and scope of the appended claims. The scope of the claims is consistent with the broadest interpretation, thereby including all such modifications and equivalent structures and functions.

Claims

1. A dipole radiator, characterized in that: The dipole radiating vibrator comprises: Pedestal; A plurality of pairs of radiating arms, the plurality of pairs of radiating arms being arranged around the base and each pair of radiating arms having a feeding point, wherein first radiating arms arranged at intervals in the plurality of pairs of radiating arms form a first polarization and second radiating arms arranged at intervals in the plurality of pairs of radiating arms form a second polarization different from the first polarization; A plurality of baluns corresponding to the plurality of pairs of radiating arms, each of the plurality of baluns being disposed between the base and a pair of radiating arms in the plurality of pairs of radiating arms; A first combining unit and a second combining unit; and at least two matching cables respectively connected between at least two feeding points associated with the first polarization and the first combining unit, and at least two matching cables respectively connected between at least two feeding points associated with the second polarization and the second combining unit, The matching cables connected at least two feeding points associated with the first polarization are combined at the first combining unit, and the matching cables connected at least two feeding points associated with the second polarization are combined at the second combining unit.

2. The dipole radiator according to claim 1, characterized in that: The multiple pairs of radiating arms are constructed as four pairs of radiating arms, two pairs of radiating arms arranged at intervals among the four pairs of radiating arms form the first polarization and the other two pairs of radiating arms form the second polarization, and the multiple baluns are constructed as four baluns, each of the four baluns is arranged between the base and a pair of radiating arms among the four pairs of radiating arms.

3. The dipole radiator according to claim 1 or 2, characterized in that: The dipole radiator also includes: A first feeder cable and a second feeder cable, wherein the first feeder cable is electrically connected to an inner conductor of the first combining unit, and wherein the second feeder cable is electrically connected to an inner conductor of the second combining unit.

4. The dipole radiator according to claim 3, characterized in that: The outer conductor of the first combining unit and the outer conductor of the second combining unit have a first metal connection portion at the other end away from the feeding point, which is matched with the outer conductor of the first feeding cable or the outer conductor of the second feeding cable in shape.

5. The dipole radiator according to claim 3, characterized in that: The first combining unit and the second combining unit include a feeding portion including an inner conductor configured as an L-shaped feeding sheet.

6. The dipole radiator according to claim 5, characterized in that: The feeder comprises an insulator connected to the inner conductor. The insulator is provided with a clamping portion, and the feeder is detachably connected to the base via the clamping portion.

7. The dipole radiator according to claim 5, characterized in that: The outer conductor of the first combining unit and the outer conductor of the second combining unit are respectively provided with a second metal connecting portion for welding the outer conductor of the matching cable associated therewith.

8. The dipole radiator according to claim 7, characterized in that: The second metal connection portion is configured as a protrusion extending radially outward from a cross section of the first combining unit or the second combining unit.

9. The dipole radiator according to claim 8, characterized in that: The protrusion is configured with a semicircular receiving portion to receive the outer conductor of the matching cable.

10. The dipole radiator according to claim 7, characterized in that: The second metal connection portion is configured to be independently configured from the outer conductor of the first combining unit and / or the outer conductor of the second combining unit.

11. The dipole radiator according to claim 10, characterized in that: The second metal connection portion is integrally formed with the base and / or the balun.

12. The dipole radiator according to claim 1, characterized in that: The first combining unit and the second combining unit pass through the base and / or the balun.

13. The dipole radiator according to claim 1, characterized in that: The inner conductor of the first combining unit and the inner conductor of the second combining unit have a groove at the other end away from the feeding point.

14. The dipole radiator according to claim 13, characterized in that: The outer conductor of the first combining unit and the outer conductor of the second combining unit have an opening at the other end.

15. The dipole radiator according to claim 13, characterized in that: The outer conductor of the first combining unit and the outer conductor of the second combining unit have a square or cylindrical outer contour surface.

16. The dipole radiator according to claim 15, characterized in that: The first combining unit and the second combining unit further include an insulating medium layer disposed between the inner conductor and the outer conductor.

17. The dipole radiator according to claim 1, characterized in that: At least two matching cables connected between at least two feeding points associated with the first polarization and the first combining unit are of equal length, and at least two matching cables connected between at least two feeding points associated with the second polarization and the second combining unit are of equal length.

18. An antenna, characterized in that: The antenna comprises a dipole radiating element according to any one of claims 1 to 17.

19. The antenna according to claim 18, characterized in that The antenna further includes a reflector.

20. The antenna according to claim 18, characterized in that The antenna also includes a phase shifting network.

Images