Omnidirectional antenna

Abstract

The utility model discloses an omnidirectional antenna, which comprises a support block and a plurality of double-cone units which are arranged in the support block at intervals, and a four-power divider is arranged at one end of the support block; the double-cone unit comprises an upper vibrator and a lower vibrator, necking ends of the upper vibrator and the lower vibrator are oppositely arranged, the upper vibrator and the lower vibrator are riveted on the supporting block, a cable locking structure is arranged on the lower vibrator, and a conductive tank spring is embedded in the upper vibrator; the antenna further comprises a feed cable sequentially penetrating through the upper oscillator and the lower oscillator, the cable locking structure is used for locking the feed cable, and the conductive tank spring is used for being inserted into an inner conductor of the feed cable. The feed cable is connected with the four power dividers; the four-way power divider also comprises a protective housing. The supporting block and the four-way power divider are both installed in the protective housing. The antenna has good consistency in antenna indexes such as out-of-roundness, standing wave, gain and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to antenna technical field especially relates to a kind of omnidirectional antennas. BACKGROUND

[0002] The feeding position of double-cone antenna is in the middle of two cones, multiple double-cone unit antennas are vertically fed in groups, and the feeding cable of the double-cone unit antennas from top to bottom passes through the next double-cone unit antenna, which has a serious impact on the non-circularity, standing wave and gain of the cable passing through the unit antenna. Moreover, the connection between the upper and lower dipoles is usually achieved by welding, which makes it difficult to ensure the spacing between the upper and lower dipoles during welding. Inaccurate spacing will also seriously affect the antenna index, resulting in poor consistency of the antenna. SUMMARY

[0003] The utility model aims at providing an omnidirectional antenna that improves the relative fixing method of the upper and lower dipoles and the cable connection method to improve the consistency of the antenna index.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] An omnidirectional antenna includes a support block and multiple double-cone units installed in the support block and spaced apart. One end of the support block is provided with four power dividers. The double-cone unit includes upper and lower dipoles with their notched ends facing each other. The upper and lower dipoles are riveted to the support block. The lower dipole is provided with a cable locking structure, and the upper dipole is embedded with a conductive pot spring. The omnidirectional antenna also includes a feeding cable that sequentially passes through the upper and lower dipoles. The cable locking structure is used to lock the feeding cable, and the conductive pot spring is used to insert the inner conductor of the feeding cable. The feeding cable is connected to the four power dividers. The support block and the four power dividers are installed in a protective shell.

[0006] Preferably, the spacing distance between the upper and lower dipoles is 2 mm.

[0007] Preferably, the cable locking structure includes a locking sleeve installed on the lower dipole and a locking nut sleeved on the locking sleeve. The center lines of the locking sleeve and the conductive pot spring are coaxial with the center lines of the upper and lower dipoles.

[0008] Preferably, the support block is provided with a support seat, and the four power dividers are installed on the support seat.

[0009] Preferably, the protective shell includes a protective cover, one end of which is provided with a protective cap, and the other end is provided with a base, and the four power dividers are installed on the base.

[0010] Preferably, the four power divider comprises a power divider cavity mounted on a support base and an input socket integrated on the power divider cavity, and an output socket extending out of the base.

[0011] Preferably, the base is provided with an outwardly extending mounting disc, and a plurality of mounting holes are uniformly distributed in the circumferential direction on the mounting disc.

[0012] Preferably, the four power divider is integrated with an inner conductor with a spring, and the input socket is connected with the spring.

[0013] Preferably, the material of the power divider cavity is aluminum.

[0014] By taking the support block as the mounting reference, the upper oscillator and the lower oscillator constituting the double-taper unit are riveted and fixed inside the support block, so that the spacing between the upper oscillator and the lower oscillator is guaranteed, there is no welding deformation, the spacing consistency is high, and the pre-punching can realize alignment, and the precision is easy to control.

[0015] Meanwhile, the cable locking structure is arranged on the lower oscillator to lock the feed cable, and the conductive spring penetrates the inner conductor of the feed cable stripped of the protective layer, so that one feed cable penetrates and connects multiple double-taper units, avoids the welding connection mode, and improves the connection stability; and satisfies 0 potential threading and power supply, guarantees the indicators of the antenna, and guarantees the roundness, standing wave and gain.

[0016] Meanwhile, the internal structure is protected by the protective shell, and the overall structure is convenient to install and use. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is a structural schematic view of the utility model embodiment;

[0018] Fig. 2 is a structural schematic view of the double-taper unit in the utility model embodiment;

[0019] Fig. 3 is a structural schematic view of the four power divider in the utility model embodiment;

[0020] In Figs. 1-3 , the correspondence between the component names or lines and the drawing numbers is as follows:

[0021] Support block 1, double-taper unit 2, upper oscillator 21, lower oscillator 22, locking sleeve 23, locking nut 24, conductive spring 25, four power divider 3, power divider cavity 31, input socket 32, output socket 33, feed cable 4, protective shell 5, protective cover 51, protective cap 52, base 53, mounting disc 531, mounting hole 532, support base 6. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0023] Referring to Figs. 1-3 The embodiments of the utility model propose an omnidirectional antenna, including support block 1 and multiple double cone units 2 that are installed in the support block 1 and are arranged at intervals, four power dividers 3 are installed at one end of the support block 1, the support block 1 is used as a carrier to realize device integration, and also is used as a fixing reference, specifically, the double cone unit 2 includes the upper oscillator 21 and the lower oscillator 22 that are oppositely arranged at the necked end, the upper oscillator 21 and the lower oscillator 22 are riveted on the support block 1, riveting is carried out after alignment by pre-installing riveting holes on the upper oscillator 21, the lower oscillator 22 and the support block 1, so that the upper oscillator 21 and the lower oscillator 22 can be fixed without deformation, the relative spacing consistency is high, generally, the spacing is 2mm. Meanwhile, the multiple double cone units 2 are connected through the feed cable, the coaxiality of the feed cable can be further ensured under the condition that the coaxiality of the upper oscillator 21 and the lower oscillator 22 is high after being fixed, specifically, the cable locking structure is arranged on the lower oscillator 22, the conductive pot spring 25 is embedded on the upper oscillator 21, and the application further includes the feed cable 4 that passes through the upper oscillator 21 and the lower oscillator 22 in sequence, the cable locking structure is used for locking the feed cable, the conductive pot spring 25 is used for inserting the inner conductor of the feed cable 4, that is, the feed cable does not need to be cut off and welded, but is locked and conductively connected through threading, one feed cable ensures 0 potential wire passing and feeding, and the mechanical connection stability and reliability of the feed cable are improved. Therefore, the antenna has good consistency in the non-roundness, standing wave, gain and other antenna indexes.

[0024] Meanwhile, the feed cable 4 is connected with the four power dividers 3, reliable electrical connection of signal transmission is realized through the four power dividers 3, and the application further includes the protective shell 5, the support block 1 and the four power dividers 3 are installed in the protective shell 5, the internal devices are protected through the protective shell 5, and the protective shell 5 is used as a mounting structure to realize the mounting and use of the whole antenna.

[0025] Specifically, the cable locking structure includes the locking sleeve 23 installed on the lower oscillator 22 and the locking nut 24 sleeved on the locking sleeve 23, the center lines of the locking sleeve 23 and the conductive pot spring 25 are coaxial with the center lines of the lower oscillator 22 and the upper oscillator 21, the feed cable is pressed through the fastening of the locking nut 24 and the locking sleeve 23, and the cable threading is facilitated in the loosened state, so that reliable conductive connection of the conductive pot spring 25 and the exposed inner conductor part is ensured.

[0026] Meanwhile, a support seat 6 is arranged at the bottom of the support block 1, and the four power dividers 3 are arranged on the support seat 6; the support seat 6 is a hollow structure, and the support seat 6 can stably arrange the four power dividers 3.

[0027] The protective shell 5 comprises a protective cover 51, one end of the protective cover 51 is provided with a protective cap 52, and the other end is provided with a base 53; the four power dividers 3 are arranged on the base 53, and the protective cap 52 and the base 53 are used for overall installation of the interior.

[0028] Meanwhile, an installation disc 531 extending outward is arranged on the base 53, a plurality of installation holes 532 are arranged on the installation disc 531 and are uniformly distributed in the circumferential direction, the installation disc 531 is used for positioning during installation, the installation holes 532 are provided with fasteners, and the fasteners are used for installation and fixation, so that the entire antenna is installed and fixed.

[0029] Specifically, the four power dividers 3 comprise a power divider cavity 31 arranged on the support seat 6 and an input end socket 32 and an output end socket 33 integrated on the power divider cavity 31; the number of the input end socket 32 is four; the output end socket 33 protrudes from the base 53, is installed and fixed through the base 53, and is simultaneously connected with an external connector; and the internal input end socket 32 is connected with a feed cable. The four power dividers 3 are mature products and can be directly applied; an inner conductor with a can spring is integrated in the four power dividers 3; the input end socket 32 is connected with the can spring; the can spring is also used for electrically connecting; mechanical electrically connecting is realized; the connection stability is improved; and the power of 200W can be borne.

[0030] Meanwhile, the power divider cavity 31 is made of aluminum material, such as aluminum alloy and aluminum profile, and has good structural stability and a cross-sectional size of 25mm*25mm.

[0031] Specifically, the four power dividers 3 are mainly mechanically connected with the conductive part, the structural stability and the electrically connecting reliability are improved, the stability under certain force is met, the bearing power is improved, and of course, the mature products can be directly used for assembly.

[0032] In the utility model, unless another definite provision and limitation, the terms "arrangement", "connection", "fixation" and the like should be understood in a broad sense, for example, can be fixed connection, also can be detachable connection, or be integrated; can be mechanical connection, also can be electrical connection; can be directly connected, also can be indirectly connected through intermediate medium, can be the communication of two elements or the interaction of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0033] In the description of the utility model, it is necessary to explain that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "inner", "outer" and the like is the orientation or position relation based on the drawing shown, or is the orientation or position relation of the utility model product when it is usually placed, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.

[0034] It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An omnidirectional antenna, characterized in that: It includes a support block (1) and a plurality of double cone units (2) installed in the support block (1) and spaced apart. A four-way power divider (3) is installed at one end of the support block (1). The double-cone unit (2) includes an upper vibrator (21) and a lower vibrator (22) with their constricted ends facing each other. The upper vibrator (21) and the lower vibrator (22) are riveted to the support block (1). The lower vibrator (22) is provided with a cable locking structure. The upper vibrator (21) is embedded with a conductive can spring (25). It also includes a feed cable (4) that passes through the upper vibrator (21) and the lower vibrator (22) in sequence, the cable locking structure is used to lock the feed cable, and the conductive can spring (25) is used to insert the inner conductor of the feed cable (4); The power supply cable (4) is connected to the four-way power divider (3); It also includes a protective housing (5), and the support block (1) and the four power divider (3) are both installed inside the protective housing (5).

2. An omnidirectional antenna according to claim 1, characterized in that: The distance between the upper vibrator (21) and the lower vibrator (22) is 2 mm.

3. An omnidirectional antenna according to claim 1, characterized in that: The cable locking structure includes a locking sleeve (23) installed on the lower vibrator (22) and a locking nut (24) sleeved on the locking sleeve (23). The center lines of the locking sleeve (23) and the conductive can spring (25) are coaxial with the center lines of the lower vibrator (22) and the upper vibrator (21).

4. An omnidirectional antenna according to claim 1, characterized in that: The support block (1) has a support base (6) at its bottom, and the four-way power divider (3) is installed on the support base (6).

5. An omnidirectional antenna according to claim 4, characterized in that: The protective housing (5) includes a protective cover (51), one end of which is fitted with a protective cap (52), and the other end is fitted with a base (53). The four-way power divider (3) is mounted on the base (53).

6. An omnidirectional antenna according to claim 5, characterized in that: The four-way power divider (3) includes a power divider cavity (31) mounted on a support base (6) and an input socket (32) and an output socket (33) integrated on the power divider cavity (31), the output socket (33) extending out of the base (53).

7. An omnidirectional antenna according to any one of claims 5 or 6, characterized in that: The base (53) is provided with an outwardly extending mounting plate (531), and the mounting plate (531) is provided with a plurality of mounting holes (532) evenly distributed along the circumference.

8. An omnidirectional antenna according to claim 6, characterized in that: The four-way power divider (3) integrates an inner conductor with a can spring, and the input socket (32) is connected to the can spring.

9. An omnidirectional antenna according to claim 8, characterized in that: The power divider cavity (31) is made of aluminum.

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