Sheet array radio frequency antenna

Abstract

The utility model relates to the technical field of antennas, in particular to a sheet array radio frequency antenna. The multi-unit radio frequency array antenna assembly comprises a plurality of groups of antenna monomer units, and is characterized in that the antenna monomer units are combined in a monomer unit stacking mode, or combined in an array mode, or combined in an array and stacking mode to form the multi-unit radio frequency array antenna assembly, the antenna monomer units are of sheet-shaped structures, and the antenna monomer units are of sheet-shaped structures. The antenna unit is made of an aluminum alloy material or a plastic material, the surface of the antenna unit is plated with a metal layer, two sides of the antenna unit are provided with weight-reducing cavity grooves, the weight-reducing cavity grooves are arranged in a bilateral symmetry manner, and a working cavity is arranged between the weight-reducing cavity grooves. The beneficial effects of the utility model are that according to the technical scheme, single sheet-shaped antenna monomers can form different congenital arrays, and can be stacked and arranged in an array, and the formed array is high in integration level, high in power density, simple in structure, and small in mass and size.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, and in particular to a sheet array radio frequency antenna. Background Art

[0002] In the prior art, the traditional three-dimensional symmetrical horn antenna has a complex shape, large size, and heavy weight, and is not easy to form an antenna array. The formed array has low integration and low power density. Therefore, the following two-dimensional symmetrical planar array horn antenna is invented.

[0003] Therefore, it is necessary to design a sheet array radio frequency antenna monomer unit to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a sheet-shaped array radio frequency antenna to overcome the above-mentioned deficiencies in the current prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A sheet-like array radio frequency antenna, comprising a plurality of groups of antenna monomer units, characterized in that the antenna monomer units are combined by stacking monomer units, or by arraying, or by both arraying and stacking to form a multi-unit radio frequency array antenna assembly; the antenna monomer units are sheet-like structures, and are made of aluminum alloy or plastic, with a metal layer plated on the surface; weight-reducing cavity grooves are provided on both sides of the antenna monomer units, and the weight-reducing cavity grooves are symmetrically arranged on the left and right, and a working cavity is provided between the weight-reducing cavity grooves.

[0007] Preferably, the antenna monomer unit is made of aluminum alloy or plastic material, and is plated with a metal layer on the surface.

[0008] Preferably, the working cavity is in a stepped trumpet shape, a straight oblique mouth shape or a flared structure.

[0009] Preferably, a radio frequency signal feeder is installed on the antenna monomer unit, and one end of the radio frequency signal feeder is arranged through the upper part of the working cavity, and the other end is arranged outside the antenna monomer unit.

[0010] Preferably, an antenna bottom plate is further provided on one side of the antenna monomer unit, and a protective layer is plated on the surface of the antenna bottom plate.

[0011] The beneficial effects of the utility model are as follows: the technical solution adopts a single sheet antenna monomer to form different innate arrays, and can be stacked and arranged in an array. The formed array has high integration, high power density, simple structure, small mass and size. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the monomer structure of a sheet-shaped array radio frequency antenna of the utility model;

[0013] Figure 2 This is a schematic diagram of the combined structure of a sheet array radio frequency antenna of the utility model;

[0014] Figure 3 This is an implementation example of a sheet array radio frequency antenna of the utility model;

[0015] Figure 4 This is a second implementation example of a sheet-shaped array radio frequency antenna of the utility model;

[0016] In the figure: 1. Antenna monomer unit; 11. Weight-reducing cavity slot; 12. Working cavity; 13. RF signal feeder; 14. Antenna base plate. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0019] Reference Figures 1 to 4 , a sheet-shaped array radio frequency antenna, comprising a plurality of groups of antenna monomer units 1, wherein the antenna monomer units are combined by stacking monomer units, or by arraying, or by both arraying and stacking to form a multi-unit radio frequency array antenna assembly;

[0020] The antenna monomer unit is a sheet structure, and is made of aluminum alloy or plastic material, with a metal layer plated on the surface, so that the aluminum alloy or plastic antenna has better conductivity and enhances its environmental adaptability; the overall weight can be effectively reduced by using aluminum alloy lightweight materials or plastic materials;

[0021] The antenna monomer unit is provided with weight-reducing cavity grooves 11 on both sides, and the weight-reducing cavity grooves are symmetrically arranged on the left and right, and a working cavity 12 is arranged between the weight-reducing cavity grooves, and the working cavity has a stepped horn-shaped structure, a straight line oblique mouth-shaped structure, etc.

[0022] A radio frequency signal feeder 13 is installed on the antenna monomer unit, and one end of the radio frequency signal feeder is arranged through the upper part of the working cavity, and the other end is arranged outside the antenna monomer unit. Specifically, the antenna monomer can be milled on the antenna monomer unit plate by CNC, or the antenna monomer can be punched out on the antenna monomer motherboard by stamping technology, or the antenna blank can be made by metal casting and then polished to make the antenna monomer, or the antenna monomer can be produced by injection molding and then surface electroplated to make the antenna monomer, etc. The above manufacturing methods can ensure good consistency between antenna monomers, and the production process is simple and efficient, with a high degree of automation, saving manpower, and strong controllability of the production process, and can mass-produce radio frequency antenna monomers with extremely high consistency.

[0023] According to the needs, the input characteristic impedance of the antenna can be designed to be 25 ohms, 50 ohms, 75 ohms, 120 ohms, 300 ohms, etc. According to the resonant frequency of different working frequency bands, the specific working cavity shape and size of the antenna can be adjusted to achieve the best transmission / reception efficiency;

[0024] An antenna bottom plate is also provided on one side of the antenna monomer unit. The antenna bottom plate can be a separate large board or an integrated bottom plate of the antenna monomer. The surface coating of the bottom plate is consistent with that of the antenna monomer. A single monomer has a bottom plate on only one side. After stacking, the bottom plate of the antenna above is shared, so that the working cavity forms a closed space in the five directions of up, down, left, right and back, leaving only the forward space for transmitting and receiving radio frequency signals.

[0025] Implementation case 1, combining individual antenna monomer units into an array;

[0026] In implementation case 2, the single antenna monomer units are connected in a row and stacked into an N-layer array structure. The specific shape and structure can be adjusted according to actual use;

[0027] The benefit of the utility model is that the technical solution adopts a single sheet antenna monomer to form different innate arrays, and can be stacked and arranged in an array. The formed array has high integration, high power density, simple structure, small mass and size.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sheet-shaped array radio frequency antenna, comprising a plurality of groups of antenna monomer units, characterized in that: The antenna monomer units are combined by stacking monomer units, or by array, or by both array and stacking to form a multi-unit RF array antenna assembly. The antenna monomer units are sheet-like structures made of aluminum alloy or plastic, with a metal layer plated on the surface. Weight-reducing cavity grooves are provided on both sides of the antenna monomer units, and the weight-reducing cavity grooves are symmetrically arranged on the left and right, and a working cavity is provided between the weight-reducing cavity grooves.

2. The sheet-shaped array radio frequency antenna according to claim 1, characterized in that: The antenna monomer unit is made of aluminum alloy or plastic material, and is plated with a metal layer on the surface.

3. The sheet-shaped array radio frequency antenna according to claim 1, characterized in that: The working cavity is in a stepped trumpet shape, a straight oblique mouth shape or a flared structure.

4. The sheet-shaped array radio frequency antenna according to claim 1, characterized in that: A radio frequency signal feeder is installed on the antenna monomer unit, and one end of the radio frequency signal feeder is arranged through the upper part of the working cavity, and the other end is arranged outside the antenna monomer unit.

5. The sheet-shaped array radio frequency antenna according to claim 1, characterized in that: An antenna bottom plate is also arranged on one side of the antenna monomer unit, and a protective layer is plated on the surface of the antenna bottom plate.

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