CN217215089U - Compact omnidirectional array antenna device - Google Patents

Abstract

The utility model relates to the technical field of radio frequency microwave, in particular to a compact omnidirectional array antenna device, which comprises an antenna installation framework, a high-frequency printed board, a vertical transition structure, a radiation unit, a power distributor and a radio frequency cable; the antenna mounting framework is designed into a hollow cuboid framework structure, and the high-frequency printed board is fixedly mounted on the periphery of the antenna mounting framework; the radiating units are arranged on the outer sides of the high-frequency printed boards, and each high-frequency printed board is interconnected with the radiating unit positioned on the outer side of the high-frequency printed board through a vertical transition structure; the power divider is fixed on the end face of the antenna installation framework, and a main connecting port of the power divider is connected with connectors of four groups of high-frequency printed boards positioned around the antenna installation framework through radio-frequency cables, so that a power distribution network is formed between the main connecting port of the power divider and each radiating unit. The omnidirectional array antenna has the advantages of light weight, small size and low transmission loss.

Description

Compact omnidirectional array antenna device

Technical Field

The utility model relates to a radio frequency microwave technical field specifically is a compact omnidirectional array antenna device.

Background

An array antenna is a common implementation form of an antenna, and uses a plurality of radiation units, the radiation units are arranged according to a certain distance and direction, and radiation signals of the plurality of radiation units are spatially synthesized to form an antenna beam meeting specific requirements.

The omnidirectional antenna shows that the omnidirectional antenna radiates uniformly at 360 degrees on a horizontal directional diagram, namely the omnidirectional antenna is not directional, and shows a beam with a certain width on a vertical directional diagram, and the smaller the lobe width is, the larger the gain is generally; the power distribution network distributes a path of signals into a plurality of paths according to certain requirements, wherein the input end of the power distribution network is provided with a port, the output end of the power distribution network is provided with a plurality of ports, and the amplitudes of the plurality of paths of signals can be the same or different; the phases can be the same or different; the plurality of paths can be isolated or non-isolated.

The basic distribution unit of a conventional power distribution network is usually a coupler or a branch line, and several basic distribution units are combined together, together with a peripheral metal housing, a connector, etc., to form an entity generally called a power distributor. For most application occasions without high power, the circuit of the power divider is usually made of a microwave printed board, the printed board, a metal shell and a connector are the constituent elements of the conventional power divider, for a simple power distribution network, the function of the power divider can be realized by one power divider, for a complex power distribution network, the function of the power divider can be realized by combining a plurality of power dividers, and the power dividers are connected through radio frequency cable assemblies.

Among the ports of a plurality of microwave components, the conventional interconnection mode is as follows: radio frequency cable assembly interconnection, connector direct connection, horizontal transition or vertical transition direct connection. The radio frequency cable assemblies are connected with the connectors of the components through the connectors of the radio frequency cable assemblies; the direct connection of the connectors mostly means that different components are directly connected through respective connectors; the horizontal transition or the vertical transition is directly connected, namely different components are connected, an outer conductor of the circuit is conducted through direct contact, and an inner conductor of the circuit is conducted through welding of parts such as soldering lugs or probes and the like and circuits on two sides.

In the conventional omnidirectional array antenna power distribution network, a large number of box bodies and cover plates are adopted for a single microwave printed board, so that the weight and the size of the product are increased; moreover, the connection mode of the radio frequency cable assembly and the connector is adopted, so that the signal transmission loss is increased, the installation space is occupied, the overall design is not compact enough, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compact omnidirectional array antenna device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: a compact omnidirectional array antenna device comprises an antenna installation framework, a high-frequency printed board, a vertical transition structure, a radiation unit, a power distributor and a radio frequency cable; the antenna installation framework is designed into a hollow cuboid framework structure, and the high-frequency printed board is installed and fixed around the antenna installation framework to form a closed space; the radiating units are arranged on the outer sides of the high-frequency printed boards, and each high-frequency printed board is interconnected with the radiating unit positioned on the outer side of the high-frequency printed board through a vertical transition structure; the power divider is fixed on the end face of the antenna installation framework, and a main connecting port of the power divider is connected with connectors of four groups of high-frequency printed boards positioned around the antenna installation framework through radio-frequency cables, so that a power distribution network is formed between the main connecting port of the power divider and each radiating unit.

Preferably, the vertical transition structure includes an upper track and a lower track.

Preferably, a lower pad is disposed on the lower printed line.

Preferably, the lower bonding pad is a truncated cone-shaped structure with a narrow top and a wide bottom.

Preferably, a positioning connection hole is formed in the lower bonding pad, and a conductive element is connected to the inside of the positioning connection hole and connected with the radiation unit through the conductive element.

Preferably, each high-frequency printed board is connected with a plurality of radiating units at equal intervals, and the radiating units on two adjacent high-frequency printed boards are arranged in parallel and level.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model provides a pair of compact omnidirectional array antenna device, this power distribution network install polylith microwave printing board in omnidirectional array antenna skeleton's inside, have saved box body and apron that conventional single microwave printing board was used always, and polylith microwave printing board shares the inner space of skeleton as box body and shield moreover, has reduced weight and size.

2. The utility model provides a pair of compact omnidirectional array antenna device adopts perpendicular interconnection structure to be connected between microwave printing board in this scheme and the radiating element, has saved radio frequency cable subassembly and connector commonly used, has reduced the signal transmission loss, has saved the required space of installation, has light in weight, the size is little, the advantage that transmission loss is low, in omnidirectional array antenna's design, has general using value.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural diagram of the antenna mounting frame of the present invention;

fig. 3 is a schematic structural diagram of the high-frequency printed board of the present invention;

fig. 4 is a schematic diagram of the distribution structure of the radiation units of the present invention;

fig. 5 is a specific structural schematic diagram of the vertical transition structure of the present invention.

In the figure: 1. an antenna mounting framework; 2. a high-frequency printed board; 3. a power divider; 4. a radiation unit; 5. an upper printed line; 6. a lower printed line; 7. a lower bonding pad; 8. positioning the connecting hole; 9. a conductive element.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-5, the present invention provides a technical solution: a compact omnidirectional array antenna device comprises an antenna installation framework 1, a high-frequency printed board 2, a vertical transition structure, a radiation unit 4, a power distributor 3 and a radio frequency cable; the antenna installation framework 1 is designed into a hollow cuboid framework structure, and the high-frequency printed board 2 is installed and fixed around the antenna installation framework 1 to form a closed space; the radiation units 4 are arranged on the outer sides of the high-frequency printed boards 2, and each high-frequency printed board 2 is connected with the radiation unit 4 on the outer side of the high-frequency printed board through a vertical transition structure; the power divider 3 is fixed on the end face of the antenna mounting framework 1, and a total connection port of the power divider 3 is connected with connectors of four groups of high-frequency printed boards 2 positioned around the antenna mounting framework 1 through radio frequency cables, so that a power distribution network is formed from the total connection port of the power divider 3 to each radiation unit 4.

Further, the vertical transition structure comprises an upper track 5 and a lower track 6.

Further, a lower pad 7 is provided on the lower printed line 6.

Further, the lower bonding pad 7 has a truncated cone-shaped structure with a narrow top and a wide bottom.

Furthermore, a positioning connection hole 8 is formed in the lower bonding pad 7, and a conductive element 9 is connected inside the positioning connection hole 8 and connected with the radiation unit 4 through the conductive element 9.

Furthermore, each high-frequency printed board 2 is connected with a plurality of radiating elements 4 at equal intervals, and the radiating elements 4 on two adjacent high-frequency printed boards 2 are arranged in parallel and level.

The working principle is as follows: this scheme designs omnidirectional array antenna skeleton for hollow cuboid skeleton texture, is fixed in the surface of this cuboid skeleton with the installation of four high frequency printing boards 2, and 1 is installed to every face, and every high frequency printing board 2 carries out the interconnection through the perpendicular transition structure of a plurality of and the radiating element 4 that is located the same dull and stereotyped outside.

The high-frequency printed board 2 is installed in the hollow portion of the omnidirectional array antenna installation framework 1, the internal space of the framework shared by the plurality of high-frequency printed boards 2 serves as the box body and the shielding body, and compared with a conventional implementation mode, the high-frequency printed board structure has the advantages that the size is remarkably reduced, the weight is reduced, and the cost is reduced.

The power divider 3 in the scheme adopts a one-to-four power divider, the power divider 3 is fixed on the end face of a cuboid framework and is connected with connectors of four high-frequency printed boards 2 through four radio frequency cables, and a power distribution network is formed from the total port of the power divider 3 to each radiation unit on the whole.

According to the structure design, the high-frequency printed board 2 and the radiation unit 4 are connected in a vertical transition direct connection mode, a connector and a radio frequency cable which are conventionally used for connecting through a radio frequency cable assembly are omitted, the stability of connection between the radiation unit 4 and the high-frequency printed board 2 is guaranteed, the signal transmission loss is reduced, the space required by installation is saved, and the cost is reduced.

The design method of the compact omnidirectional array antenna power distribution network provided by the scheme can be applied to P, L, S, C and other frequency bands.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A compact omni-directional array antenna apparatus, characterized by: the antenna comprises an antenna mounting framework (1), a high-frequency printed board (2), a vertical transition structure, a radiation unit (4), a power distributor (3) and a radio frequency cable; the antenna mounting framework (1) is designed to be a hollow cuboid framework structure, and the high-frequency printed board (2) is fixedly mounted on the periphery of the antenna mounting framework (1) to form a closed space; the radiating units (4) are arranged on the outer sides of the high-frequency printed boards (2), and each high-frequency printed board (2) is interconnected with the radiating unit (4) located on the outer side of the high-frequency printed board through a vertical transition structure; the power divider (3) is fixed on the end face of the antenna installation framework (1), and a total connection port of the power divider (3) is connected with connectors of four groups of high-frequency printed boards (2) located on the periphery of the antenna installation framework (1) through radio frequency cables, so that a power distribution network is formed between the total connection port of the power divider (3) and each radiation unit (4).

2. A compact omnidirectional array antenna apparatus according to claim 1, wherein: the vertical transition structure comprises an upper printed line (5) and a lower printed line (6).

3. A compact omnidirectional array antenna apparatus according to claim 2, wherein: and a lower bonding pad (7) is arranged on the lower printed line (6).

4. A compact omnidirectional array antenna apparatus according to claim 3, wherein: the lower bonding pad (7) is in a round table-shaped structure with a narrow upper part and a wide lower part.

5. A compact omnidirectional array antenna apparatus according to claim 3, wherein: and the lower bonding pad (7) is provided with a positioning connecting hole (8), and the inside of the positioning connecting hole (8) is connected with a conductive element (9) and is connected with the radiation unit (4) through the conductive element (9).

6. A compact omnidirectional array antenna apparatus according to claim 1, wherein: each high-frequency printed board (2) is connected with a plurality of radiating units (4) at equal intervals, and the radiating units (4) on two adjacent high-frequency printed boards (2) are arranged in parallel and level.

Images