Lightweight radiation unit

Abstract

The utility model discloses a lightweight radiation unit, which comprises a base, a balance seat, a radiation seat and a feeder cable, the balance seat comprises a plurality of balance arms; the lower ends of the balance arms are connected with the base; the radiation seat comprises a plurality of radiation arms, and the radiation arms are connected to the upper ends of the balance arms; the feeder cable is arranged on the balance arm, the upper end is connected with the radiation arm, and the lower end serves as feed input; a first reinforcing rib is arranged on the side edge of the balance arm and / or the radiation arm; through the above structure, on the premise of ensuring that the electrical and radiation parameter performance of the antenna is not deteriorated, compared with a traditional scheme, the antenna weight, the electroplating area and the energy consumption are reduced, the environmental pollution is reduced, and the use requirements are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of antenna, especially in a kind of lightweight radiation unit. BACKGROUND

[0002] There are two common array modes of base station antenna, the first is shoulder-to-shoulder array form, and the second is nested array form, and there are also two forms of radiation unit working in low frequency band; the radiation unit of the former uses the PCB structure composed of radiation surface, balun component and lead plate, which is single in structure type, cannot realize three-dimensional special-shaped structure with superior performance index, and the overall performance index and radiation efficiency of base station antenna are limited; the radiation unit of the latter is bowl-shaped structure composed of matcher and extended radiation seat, and in the conventional bowl-shaped structure, each component is single-board structure, in order to ensure the structural strength, the arm thickness of radiation unit is often designed to be thick, which increases the weight and increases the material cost, which is contrary to the future development trend of antenna; therefore, a lightweight radiation unit is urgently needed. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in the prior art. To this end, the utility model provides a lightweight radiation unit.

[0004] The technical scheme adopted by one embodiment of the utility model to solve its technical problem is as follows: a lightweight radiation unit, comprising a base, a balance seat, a radiation seat and a feeder cable;

[0005] The balance seat comprises a plurality of balance arms, and the lower end of each balance arm is connected to the base;

[0006] The radiation seat comprises a plurality of radiation arms, and each radiation arm is connected to the upper end of a balance arm;

[0007] The feeder cable is arranged on the balance arm, and the upper end of the feeder cable is connected to the radiation arm, and the lower end of the feeder cable serves as a power feeding input;

[0008] The side edge of the balance arm and / or the radiation arm is provided with a first reinforcing rib.

[0009] As one of the preferred embodiments of the utility model, the balance arm is provided as eight, and each two balance arms are evenly distributed as a group at the four corners of the base; the radiation arm is provided as eight, and each two radiation arms are arranged circumferentially as a group; the feeder cable is provided as four;

[0010] Each radiation arm is connected to the upper end of a balance arm in one-to-one correspondence;

[0011] The outer conductor of the feeder cable is connected to one of the adjacent two balance arms, the upper end of the core of the feeder cable is connected to the other of the adjacent two balance arms, and the lower end of the core of the feeder cable serves as a power feeding input.

[0012] As one of the preferred embodiments of the utility model, a kind of lightweight radiation unit further include several clamped to the clamping seat of adjacent two radiation arms.

[0013] As one of the preferred embodiments of the utility model, the clamping seat is made of plastic.

[0014] As one of the preferred embodiments of the utility model, a plurality of connecting grooves are provided on one of the adjacent two balance arms along the length direction thereof, and the outer conductor of the feed cable is connected into the connecting grooves.

[0015] As one of the preferred embodiments of the utility model, a welding platform is provided on the other of the adjacent two balance arms, and the upper end of the core of the feed cable is welded on the welding platform.

[0016] As one of the preferred embodiments of the utility model, the welding platform is integrally formed with the balance arm and / or the radiation arm.

[0017] As one of the preferred embodiments of the utility model, a bending portion is provided at the end of the radiation arm away from the balance arm.

[0018] As one of the preferred embodiments of the utility model, a second reinforcing rib is provided between the radiation arm and the first reinforcing rib and / or between the balance arm and the first reinforcing rib.

[0019] As one of the preferred embodiments of the utility model, the thickness of the balance arm, the radiation arm and / or the first reinforcing rib is not more than 2 mm.

[0020] The utility model discloses a beneficial effect: a kind of lightweight radiation unit, including base, balance seat, radiation seat and feed cable;Balance seat includes several balance arms, and the lower end of balance arm is connected with base;Radiation seat includes several radiation arms, and radiation arm is connected to the upper end of balance arm;Feed cable is arranged on balance arm and upper end is connected with radiation arm, and lower end is as feed input;The side of balance arm and / or radiation arm is provided with first reinforcing rib;Through above-mentioned structure, under the premise that guaranteeing the electrical and radiation parameter performance of antenna is not deteriorated, compared with traditional scheme, reduce antenna weight and reduce plating area, energy consumption, alleviate environmental pollution, satisfy use demand. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0022] Fig. 1 It is a kind of lightweight radiation unit in actual application in the structural schematic diagram;

[0023] Fig. 2 It is a kind of lightweight radiation unit's exploded view. DETAILED DESCRIPTION

[0024] The detailed embodiments of the present application will be described in this section, and the preferred embodiments of the present application are shown in the drawings, which serve to supplement the description in the text part of the specification, so that each technical feature and the overall technical scheme of the present application can be understood intuitively and visually by the person skilled in the art, but it cannot be understood as a limitation on the protection scope of the present application.

[0025] In the description of the present application, the meaning of multiple is more than two, greater than, less than, more than, etc. is not included in the number, and above, below, etc. is included in the number. If the first and the second are described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0026] In the description of the present application, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0027] In the present application, unless otherwise explicitly limited, the words "set", "install", "connect" and the like should be broadly understood, for example, they can be directly connected, or indirectly connected through an intermediate medium; can be fixedly connected, or can be detachably connected, or can be integrally formed; can be mechanically connected; can be the internal communication or interaction relationship of two elements. The person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0028] Reference Figs. 1-2 A kind of lightweight radiation unit, including base 100, balance seat 200, radiation seat 300 and feed cable 400;

[0029] Balance seat 200 includes several balance arms 210, the lower end of balance arm 210 is connected with base 100;

[0030] Radiation seat 300 includes several radiation arms 310, and radiation arm 310 is connected to the upper end of balance arm 210;

[0031] Feed cable 400 is arranged on balance arm 210 and the upper end is connected with radiation arm 310, and the lower end is used as feed input;

[0032] The side of balance arm 210 and / or radiation arm 310 is provided with first reinforcing rib 510.

[0033] With reference to Fig. 1-2 As a preferred embodiment of the utility model, the balance arms 210 are arranged in four corners of the base 100 in groups of two each, and the radiation arms 310 are arranged in a circumferential direction in groups of two each, and the feeder cables 400 are arranged in four groups, and the radiation arms 310 are connected to the upper ends of the balance arms 210 one by one, and the outer conductors 410 of the feeder cables 400 are connected to one of the adjacent two balance arms 210, and the upper ends of the cores 420 of the feeder cables 400 are connected to the other of the adjacent two balance arms 210, and the lower ends of the cores 420 of the feeder cables 400 serve as a feeder input.

[0034] Specifically, the radiation arms 310 are arranged in a circumferential direction in groups of two each, and form four groups of radiators, and when the radiators work, the current directions of two opposite corners are the same, and form one linear polarization emission / reception, and after field superposition, the linear polarization formed by the other two opposite corners is orthogonal to the linear polarization of the former, which is the required dual polarization of the base station antenna; the radiation seat 300 belongs to a balanced antenna, and the coaxial cable (feeder cable 400) belongs to an unbalanced transmission line, and the unbalanced state can be transitioned to a balanced state through the balance seat 200, so that the radiation seat 300 can work normally; in some embodiments, the aperture of the radiation unit is 0.48λ0, and the height is 0.25λ0, wherein λ0 is the wavelength of the center frequency of the design working frequency band of the radiation unit, and the thickness of the balance arm 210, the radiation arm 310 and / or the first reinforcing rib 510 is not more than 2mm, and at the arm thickness, the first reinforcing rib 510 is arranged on the side of the balance arm 210 and / or the radiation arm 310, so as to improve the structural stability of the balance arm 210 and the radiation arm 310.

[0035] With reference to Fig. 1-2 In some embodiments, the lightweight radiation unit further comprises a plurality of clamping seats 600 clamped on the adjacent two radiation arms 310, and as a preferred embodiment, the clamping seat 600 is made of plastic, the spacing between any two adjacent radiation arms 310 is controlled by the clamping seat 600, the stability of the radiation unit is improved, and further, the end of the radiation arm 310 away from the balance arm 210 is provided with a bending part 311 for widening the working bandwidth of the radiation unit.

[0036] With reference to Fig. 1-2In some embodiments, one of the two adjacent balance arms 210 is provided with a plurality of connecting grooves 700 along the length direction thereof, and the outer conductor 410 of the feed cable 400 is connected to the connecting grooves 700; the other of the two adjacent balance arms 210 is provided with a welding platform 800, and the upper end of the core 420 of the feed cable 400 is welded to the welding platform 800; the outer conductor 410 of the feed cable 400 is connected to the connecting grooves 700, so as to improve the intermodulation stability and enable the radiation seat 300 to work normally; and the welding platform 800 is used for receiving the core 420 of the feed cable 400, so that the radiation seat 300 can work in a good state when the balance seat 200 works normally.

[0037] With reference to Fig. 1-2 In some embodiments, the welding platform 800 is integrally formed with the balance arm 210 and / or the radiation arm 310, and the radiation unit is formed by die casting, but is not limited to this manufacturing process, for example, can be integrally formed by forging, integrally formed by sheet metal, etc., so that batch production can be realized, the manufacturing cost is reduced, and the manufacturing efficiency is improved.

[0038] With reference to Fig. 1-2 In some embodiments, the second reinforcing rib 520 is arranged between the radiation arm 310 and the first reinforcing rib 510 and / or between the balance arm 210 and the first reinforcing rib 510, so that the structural strength and stability can be further improved.

[0039] The utility model discloses the advantages are in: through above -mentioned structure can guarantee the electrical and radiation parameter performance of antenna under the premise of not deteriorating, compared with traditional scheme, can reduce antenna weight, finished product assembly weight is about 50 of before, still can reduce the electroplating area, and the electroplating area reduces to 2.68dm 2 Beneficial to energy consumption, alleviate environmental pollution, and can reduce the use of feed cable 400, and the use length of feed cable 400 is 50 of traditional scheme.

[0040] Of course, the utility model is not limited to the above-mentioned embodiment, and those skilled in the art can make equivalent transformation or replacement without departing from the spirit of the utility model, and these equivalent transformations and replacements are all included in the range defined by the claims of the present application.

Claims

1. A lightweight radiating unit, characterized in that: Includes a base (100), a balance seat (200), a radiating seat (300), and a feeder cable (400); The balance seat (200) includes a plurality of balance arms (210), the lower ends of which are connected to the base (100); The radiating base (300) includes a plurality of radiating arms (310), which are connected to the upper end of the balance arm (210); The feed cable (400) is mounted on the balance arm (210) with its upper end connected to the radiation arm (310) and its lower end serving as the power input. The side of the balance arm (210) and / or the radial arm (310) is provided with a first reinforcing rib (510).

2. The lightweight radiating unit according to claim 1, characterized in that: The balance arms (210) are arranged in pairs at the four corners of the base (100); the radiation arms (310) are arranged in pairs around the perimeter; and the feed cables (400) are arranged in four units. The radiating arms (310) are connected one-to-one with the upper ends of the balancing arms (210); The outer conductor (410) of the feed cable (400) is connected to one of the two adjacent balance arms (210), the upper end of the core (420) of the feed cable (400) is connected to the other of the two adjacent balance arms (210), and the lower end of the core (420) of the feed cable (400) serves as the power input.

3. A lightweight radiating unit according to claim 2, characterized in that: It also includes several card holders (600) that are snapped onto two adjacent radial arms (310).

4. A lightweight radiating unit according to claim 3, characterized in that: The card holder (600) is made of plastic.

5. A lightweight radiating unit according to claim 2, characterized in that: One of the two adjacent balance arms (210) is provided with a plurality of connecting slots (700) along its length direction, and the outer conductor (410) of the feed cable (400) is connected to the connecting slot (700).

6. A lightweight radiating unit according to claim 2, characterized in that: A welding table (800) is provided on one of the two adjacent balance arms (210), and the upper end of the wire core (420) of the feed cable (400) is welded to the welding table (800).

7. A lightweight radiating unit according to claim 6, characterized in that: The welding table (800) is integrally formed with the balance arm (210) and / or the radiation arm (310).

8. A lightweight radiating unit according to claim 1, characterized in that: The radiating arm (310) has a bent portion (311) at the end away from the balancing arm (210).

9. A lightweight radiating unit according to claim 1, characterized in that: A second reinforcing rib (520) is provided between the radiating arm (310) and the first reinforcing rib (510) and / or between the balancing arm (210) and the first reinforcing rib (510).

10. A lightweight radiating unit according to claim 1, characterized in that: The thickness of the balance arm (210), the radiating arm (310), and / or the first reinforcing rib (510) does not exceed 2 mm.

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