Dual-polarized nested oscillator with frequency of 820MHz-960MHz

Abstract

The utility model discloses a dual-polarized nested oscillator with a frequency of 820MHZ-960MHZ, and relates to the technical field of antennas for communication. The nested vibrator comprises a connecting ring, four groups of vibrator arms are obliquely and upwards arranged at equal intervals along the circumferential direction of the connecting ring, each group of vibrator arms is connected with a coaxial cable, the upper end of each group of vibrator arms is connected with a group of vibrators, the four groups of vibrators are encircled to form a ring, the four groups of vibrators are arranged in pairs, and the coaxial cable is connected with the coaxial cable. And each group of opposite oscillators is in one polarization direction, and the two groups of opposite oscillators form a complete dual-polarization oscillator. The oscillator has the advantages of being simple in structure, easy to implement, low in cost and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of communication antennas, in particular to a dual-polarization nested oscillator with a frequency of 820MHz-960MHz. Background Art

[0002] As society progresses, people's demands for mobile communications are becoming increasingly stringent, forcing the mobile communications industry to diversify and provide greater convenience to mobile users. However, while existing mobile communication networks offer convenience to mobile users, they also increase the number of mobile communication devices, such as base station antennas. This increases the installation and maintenance workload for base station equipment, while also increasing operating costs for major operators. Dual-polarized communication antennas utilize vibrators, but existing vibrators have a complex structure, making their production and molding processes complex and lengthy, resulting in high production costs. Utility Model Content

[0003] The technical problem to be solved by the present invention is how to provide a dual-polarization nested oscillator with a frequency of 820MHz-960MHz which has a simple structure, is easy to implement and has a low cost.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a dual-polarization nested vibrator with a frequency of 820MHz-960MHz, including a connecting ring, four groups of vibrator arms are arranged at equal intervals along the circumferential direction of the connecting ring, each group of vibrator arms is connected to a coaxial cable, and the upper end of each group of vibrator arms is connected to a group of vibrators, the four groups of vibrators form a circle, and the four groups of vibrators are arranged in pairs opposite to each other, and each group of opposing vibrators has one polarization direction, and the two groups of opposing vibrators form a complete dual-polarization vibrator.

[0005] A further technical solution is that each group of vibrator arms includes a first vibrator arm and a second vibrator arm, the first vibrator arm and the second vibrator arm extend obliquely outward, the lower ends of the first vibrator arm and the second vibrator arm are fixedly connected to the connecting ring, and a horizontal folding portion is formed at the upper end of the first vibrator arm, and the horizontal folding portion is arranged opposite to the upper end of the second vibrator arm.

[0006] A further technical solution is that the outer conductor layer of the coaxial cable is in direct contact with the cable welding groove, the core of the coaxial cable extends outward into the dipole feeding groove on the transverse folding portion, and the core is fixedly connected to the dipole feeding groove.

[0007] A further technical solution is: a first vibrator is connected to the left side of the first vibrator arm, a second vibrator is connected to the right side of the second vibrator arm, the first vibrator and the second vibrator are symmetrically arranged, and the core in the coaxial cable is connected to the first vibrator through the first vibrator arm.

[0008] A further technical solution is that: the first vibrator and the second vibrator have the same structure, the first vibrator includes a first vibrator part, one end of the first vibrator part is connected to the vibrator arm, the other end of the first vibrator part is connected to one end of the second vibrator part, the other end of the second vibrator part is connected to one end of the vibrator vertical folding part, the other end of the vibrator vertical folding part is a free end, and the diameter of the second vibrator part is larger than the diameter of the first vibrator part.

[0009] The beneficial effects of adopting the above technical solution are as follows: the nested vibrators in this application include 4 groups of vibrators, the 4 groups of vibrators are arranged in a circle in an integrated state, and the 4 groups of vibrators are arranged in pairs opposite to each other, and each group of opposing vibrators is in one polarization direction. By connecting the opposing vibrators in series, the effect of improving the vibrator gain is achieved, and the two groups of opposing vibrators finally form a complete dual-polarization vibrator. The vibrator arm and the coaxial cable connection part are provided with corresponding welding grooves, and the vibrator is formed by aluminum alloy die-casting, so the consistency is good, and because the center of the nested vibrator structure is a hollow design, when designing the actual antenna product, the vibrators of other frequency bands can be arranged in the center of the current vibrator to improve space utilization. In addition, the structure of the nested vibrator described in this application is relatively simple, easy to implement, low cost, and can transmit and cover 820MHz-960MHz frequency electromagnetic wave signals, and is used for signal coverage of the 2G frequency bands of China Mobile, China Telecom and China Unicom. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0011] Figure 1 It is a structural diagram of the vibrator according to an embodiment of the present utility model;

[0012] Figure 2 It is a structural diagram of the vibrator according to an embodiment of the present utility model;

[0013] Figure 3 It is a structural diagram of the vibrator according to an embodiment of the present utility model;

[0014] Figure 4 This is a schematic structural diagram of the vibrator without the coaxial cable according to an embodiment of the present utility model;

[0015] Among them: 1. Connecting ring;

[0016] 2. Each group of dipole arms; 21. First dipole arm; 22. Second dipole arm; 23. Horizontal fold; 24. Cable welding groove; 25. Mounting groove; 26. Diode feeding groove;

[0017] 3. Coaxial cable; 31. Outer conductor layer; 32. Core;

[0018] 4. A group of vibrators; 41. A first vibrator; 411. A first vibrator portion; 412. A second vibrator portion; 413. A vertically folded portion of the vibrator; 42. A second vibrator. DETAILED DESCRIPTION

[0019] The following is a clear and complete description of the technical solutions in the embodiments of the present invention, in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] like Figure 1-Figure 4 As shown, an embodiment of the present invention discloses a dual-polarization nested vibrator with a frequency of 820MHz-960MHz, comprising a connecting ring 1, and four groups of vibrator arms are arranged at equal intervals along the circumferential direction of the connecting ring 1, obliquely upward. The connecting ring 1 and the vibrator arms 2 can be an integral structure. Each group of vibrator arms 2 is connected to a coaxial cable 3, and the upper end of each group of vibrator arms 2 is connected to a group of vibrators 4, that is, one group of vibrator arms 2 corresponds to one coaxial cable 3 and one group of vibrators 4. The four groups of vibrators form a circle (the circle is discontinuous, and the vibrators between adjacent vibrator groups do not touch each other), and the four groups of vibrators are arranged in pairs opposite to each other, and each group of opposing vibrators has one polarization direction, and the two groups of opposing vibrators form a complete dual-polarization vibrator.

[0022] Further, such as Figure 1-Figure 4As shown, each group of dipole arms 2 includes a first dipole arm 21 and a second dipole arm 22, which extend obliquely outward. The lower ends of the first dipole arm 21 and the second dipole arm 22 are fixedly connected to the connecting ring 1. The upper end of the first dipole arm 21 is formed with a transverse fold 23, which is arranged opposite to the upper end of the second dipole arm 22. The outer side surface of the second dipole arm 22 is formed with a plurality of cable welding grooves 24, and the coaxial cable 3 is fixed in the cable welding groove 24. The inner side surface of the second dipole arm 22 is formed with a plurality of mounting grooves 25 for fixedly connecting the dual-polarization nested dipole to other components.

[0023] Furthermore, the coaxial cable 3 includes a multi-layer structure, wherein the innermost layer is the wire core 32, and the outermost layer is the outer conductor layer 31. The outer conductor layer 31 of the coaxial cable 3 is in direct contact with the cable welding groove 24, so that the coaxial cable 3 is stably fixed in the cable welding groove 24. The wire core 32 in the coaxial cable 3 extends outward to the vibrator feeding groove 26 on the transverse folding portion 23, and the wire core 32 is fixedly connected to the vibrator feeding groove 26, so that the coaxial cable is connected to the vibrator arm, so that the signal transmitted by the coaxial cable can be transmitted to the vibrator on the vibrator arm. In addition, preferably, from Figure 4 As can be seen from the figure, three cable welding grooves 24 are arranged at equal intervals. Of course, the specific number of the cable welding grooves 24 can be appropriately adjusted according to the length of the coaxial cable.

[0024] Further, such as Figure 1-Figure 4 As shown, a first diverter 41 is connected to the left side of the first diverter arm 21, and a second diverter 42 is connected to the right side of the second diverter arm 22. The first diverter 41 and the second diverter 42 are symmetrically arranged. The core 32 in the coaxial cable 3 is connected to the first diverter 41 via the first diverter arm 21. The first diverter 41 and the second diverter 42 have the same structure. The first diverter 41 includes a first diverter portion 411. One end of the first diverter portion 411 is connected to the diverter arm, the other end of the first diverter portion 411 is connected to one end of the second diverter portion 412, and the other end of the second diverter portion 412 is connected to one end of a diverter vertical fold 413. The other end of the diverter vertical fold 413 is a free end. The diameter of the second diverter portion 412 is larger than the diameter of the first diverter portion 411. It should be noted that the first diverter 41 and the second diverter 42 in each group do not contact the first diverter 41 and the second diverter 42 in the adjacent group.

[0025] Furthermore, to facilitate the installation of the nested vibrator, the coaxial cable 3 is bent in the middle and lower portion, and its lower end extends below the connecting ring 1. During assembly, the outer conductor layers 31 of the four coaxial cables are first welded to the four arms of the vibrator along the cable welding grooves 24 on the vibrator arms, and then the core wires of the coaxial cables are welded to the vibrator feeding grooves 26. The vibrator is used to generate electromagnetic waves for transmitting and receiving signals, and the coaxial cable is used to connect the co-polarized vibrators in series and transmit energy to the vibrators.

[0026] The nested vibrators in the present application include 4 groups of vibrators, which are arranged in a circle in an integrated state. The 4 groups of vibrators are arranged in pairs opposite to each other, and each group of opposing vibrators is in one polarization direction. Connecting the opposing vibrators in series can achieve the effect of improving the vibrator gain, and the two groups of opposing vibrators finally form a complete dual-polarization vibrator. The vibrator arm and the coaxial cable connection part are provided with corresponding welding grooves, and the vibrator is formed in one piece by aluminum alloy die-casting, so the consistency is good, and because the center of the nested vibrator structure is a hollow design, when designing the actual antenna product, the vibrators of other frequency bands can be arranged in the center of the current vibrator to improve space utilization. In addition, the structure of the nested vibrator described in the present application is relatively simple, easy to implement, and low in cost. It can transmit and cover electromagnetic wave signals with a frequency of 820MHz-960MHz, and is used for signal coverage of the 2G frequency bands of China Mobile, China Telecom and China Unicom.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A dual-polarization nested oscillator with a frequency of 820MHz-960MHz, characterized by: The invention comprises a connecting ring (1), four groups of vibrator arms are arranged at equal intervals along the circumferential direction of the connecting ring (1) and inclined upward, each group of vibrator arms (2) is connected to a coaxial cable (3), and the upper end of each group of vibrator arms (2) is connected to a group of vibrators (4), the four groups of vibrators form a circle, the four groups of vibrators are arranged in pairs, and each group of opposing vibrators has one polarization direction, and the two groups of opposing vibrators form a complete dual-polarization vibrator.

2. The dual-polarization nested oscillator with a frequency of 820 MHz to 960 MHz according to claim 1, characterized in that: Each group of vibrator arms (2) comprises a first vibrator arm (21) and a second vibrator arm (22), wherein the first vibrator arm (21) and the second vibrator arm (22) extend obliquely outward, the lower ends of the first vibrator arm (21) and the second vibrator arm (22) are fixedly connected to the connecting ring (1), and a transverse folding portion (23) is formed at the upper end of the first vibrator arm (21), and the transverse folding portion (23) is arranged opposite to the upper end of the second vibrator arm (22).

3. The dual-polarization nested oscillator with a frequency of 820 MHz to 960 MHz according to claim 2, characterized in that: A plurality of cable welding grooves (24) are formed on the outer side surface of the second vibrator arm (22), and the coaxial cable (3) is fixed in the cable welding groove (24).

4. The dual-polarization nested oscillator with a frequency of 820 MHz to 960 MHz according to claim 2, characterized in that: A plurality of mounting grooves (25) are formed on the inner side surface of the second dipole arm (22) for fixedly connecting the dual-polarization nested dipole to other components.

5. The dual-polarization nested oscillator with a frequency of 820 MHz to 960 MHz according to claim 3, characterized in that: The outer conductor layer (31) of the coaxial cable (3) is in direct contact with the cable welding groove (24), the wire core (32) in the coaxial cable (3) extends outward into the vibrator feeding groove (26) on the transverse folding portion (23), and the wire core (32) is fixedly connected to the vibrator feeding groove (26).

6. The dual-polarization nested oscillator with a frequency of 820 MHz to 960 MHz according to claim 3, characterized in that: Three cable welding grooves (24) are arranged at equal intervals.

7. The dual-polarization nested oscillator with a frequency of 820 MHz to 960 MHz according to claim 2, characterized in that: The left side of the first dipole arm (21) is connected to a first dipole (41), the right side of the second dipole arm (22) is connected to a second dipole (42), the first dipole (41) and the second dipole (42) are symmetrically arranged, and the core (32) in the coaxial cable (3) is connected to the first dipole (41) via the first dipole arm (21).

8. The dual-polarization nested oscillator with a frequency of 820 MHz to 960 MHz according to claim 7, characterized in that: The first vibrator (41) and the second vibrator (42) have the same structure. The first vibrator (41) comprises a first vibrator portion (411), one end of the first vibrator portion (411) is connected to the vibrator arm, the other end of the first vibrator portion (411) is connected to one end of the second vibrator portion (412), the other end of the second vibrator portion (412) is connected to one end of the vibrator vertical folding portion (413), the other end of the vibrator vertical folding portion (413) is a free end, and the diameter of the second vibrator portion (412) is greater than the diameter of the first vibrator portion (411).

9. The dual-polarization nested oscillator with a frequency of 820 MHz to 960 MHz according to claim 7, characterized in that: The first vibrator (41) and the second vibrator (42) in each group do not contact the first vibrator (41) and the second vibrator (42) in the adjacent group.

10. The dual-polarization nested oscillator with a frequency of 820 MHz to 960 MHz according to claim 1, characterized in that: A bend is formed in the middle and lower part of the coaxial cable (3), and the lower end thereof extends to below the connecting ring (1).

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