A single-feed smart antenna

Abstract

A single-feed smart antenna includes an antenna board with several antennas embedded within it, forming an overlapping area between adjacent antennas. A controller is fixed externally to the antenna board, with an antenna interface on one side electrically connected to each of the antennas and a reader / writer interface on the other side. Several antenna slots are formed within the antenna board's identification plane, and antennas are installed within these slots, forming a common area between adjacent slots, which are interconnected. The shape of the antenna slots matches the antenna structure, being rectangular in shape but not forming a closed loop. Several PCB board slots are formed within the antenna board, each located within the rectangular plane enclosed by the antenna slots, with both ends of each antenna slot opening into the PCB board slot. PCB boards are installed within the PCB board slots, and the two ends of each antenna are connected to the corresponding PCB board. This invention has the advantage of eliminating antenna identification blind spots.

Description

Technical Field

[0001] This utility model relates to the field of wireless communication, and in particular to a single-feeder smart antenna. Background Technology

[0002] With economic development and social progress, the use of antennas has become increasingly widespread. Conventional antennas consist of a single antenna, resulting in blind spots in the identification area. To reduce or even eliminate these blind spots, dual-antenna structures have gradually emerged on the market. This structure places two antennas on the same plane, with each antenna connected to a separate reader interface. This antenna structure can alternately read data transmitted from both antennas, greatly reducing blind spots in the identification area. However, because it uses two antennas, it occupies two reader interfaces, resulting in wasted resources. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a single-feed smart antenna that can eliminate antenna recognition blind spots.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A single-feed smart antenna, comprising:

[0006] An antenna board is provided, in which several antennas are embedded and installed, with an overlapping area between two adjacent antennas; a controller is fixed to the outside of the antenna board, with an antenna interface electrically connected to the several antennas on one side and a reader interface on the other side.

[0007] In one or more embodiments of this utility model, a plurality of antenna slots are provided in the identification plane of the antenna board, the antenna is installed in the antenna slots, and a common area is formed between adjacent antenna slots, and the adjacent antenna slots are interconnected through the common area.

[0008] In one or more embodiments of this utility model, the shape of the antenna slot is consistent with the structure of the antenna, and both are set as a rectangle, but do not form a closed loop; a plurality of PCB board slots are opened in the antenna board, and each of the PCB board slots is located in the rectangular plane enclosed by the antenna slots, and the two ends of the antenna slots open into the PCB board slots; a PCB board is installed in the PCB board slots, and the two ends of the antenna are connected to the corresponding PCB board.

[0009] In one or more embodiments of this utility model, the PCB board is connected to the antenna interface on the controller via a radio frequency cable.

[0010] In one or more embodiments of this utility model, the antenna is specifically configured as three, and the antenna slot is also specifically configured as three, all of which are laid flat inside the antenna plate; the antenna interface is also configured as three.

[0011] The beneficial effects of this utility model are:

[0012] This invention proposes a single-feed smart antenna that balances the coupling properties between antennas by covering the low-voltage portion of the antenna edge and enhancing the voltage in the low-voltage region, thereby greatly eliminating blind spots in the recognition area and improving recognition stability. The antenna also reduces the use of reader interfaces by electrically connecting multiple antennas 2 to different controllers, and then connecting the controllers to the reader. Attached Figure Description

[0013] Figure 1 This is a front view of the present invention;

[0014] Figure 2 This is the front view of the controller;

[0015] Figure 3 This is a schematic diagram of the antenna plate structure;

[0016] Figure 4 A front view of the antenna plate, showing the overlapping area. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0018] Example 1: In this example, as Figures 1 to 3 As shown, a single-feed smart antenna includes an antenna board 1, in which a plurality of antennas 2 are embedded and installed, with an overlapping area 3 formed between two adjacent antennas 2; a controller 4 is fixed to the outside of the antenna board 1, and an antenna interface 41 is provided on one side of the controller 4, which is electrically connected to the plurality of antennas 2 respectively, and a reader interface 42 is provided on the other side.

[0019] In this embodiment, the overlapping areas between each pair of antennas 2 greatly eliminate blind spots within the recognition area and improve recognition stability. The controller 4 is fixed with screws.

[0020] In one or more embodiments of this utility model, the antenna plate 1 has a plurality of antenna slots 11 in the identification plane, the antenna 2 is installed in the antenna slots 11, and a common area is formed between adjacent antenna slots 11, and the adjacent antenna slots 11 are interconnected through the common area.

[0021] In this embodiment, the antenna slot 11 facilitates the installation and fixation of the antenna 2.

[0022] In one or more embodiments of this utility model, the shape of the antenna slot 11 is consistent with the structure of the antenna 2, both being rectangular in shape but not forming a closed loop; a plurality of PCB board slots 12 are formed inside the antenna plate 1, each of the PCB board slots 12 being located within the rectangular plane enclosed by the antenna slots 11, and both ends of the antenna slots 11 opening into the PCB board slots 12; PCB boards are installed in the PCB board slots 12, and both ends of the antenna 2 are connected to the corresponding PCB boards.

[0023] In this embodiment, by electrically connecting multiple antennas 2 to different controllers 4, and then connecting the controllers 4 to the reader / writer, the use of the reader / writer interface is reduced.

[0024] In one or more embodiments of this utility model, the PCB board is connected to the antenna interface 41 on the controller via an RF cable.

[0025] In this embodiment, the radio frequency line is an RG316 radio frequency line, and all connection parts are connected using a standard SMA interface. The interface of antenna 2 is located at the top of the connected PCB board.

[0026] In one or more embodiments of this utility model, the antenna 2 is specifically configured as three, and the antenna slot 11 is also specifically configured as three, all of which are laid flat inside the antenna plate 1; the antenna interface 41 is also configured as three.

[0027] Working principle of this utility model:

[0028] The PCB board is fixed in the PCB board slot 12, and the antenna 2 is fixed in the middle of the antenna slot 11. After the three antennas 2 are connected to the PCB board, they are connected to the controller 4 through the RG316 radio frequency cable. The three antennas 2 are laid out in a rectangle in the recognition plane, and there is an overlapping area between each pair of the three antennas. This can greatly eliminate blind spots in the recognition area and improve the stability of recognition. The three antenna interfaces 41 on one side of the controller 4 are connected to the corresponding interfaces on the PCB board, and the reader interface 42 on the other side is connected to the reader.

[0029] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connect" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A single-feed smart antenna, characterized in that, include: Antenna board (1), in which a plurality of antennas (2) are embedded, and an overlapping area (3) is formed between two adjacent antennas (2); a controller (4) is fixed to the outside of the antenna board (1), and an antenna interface (41) is provided on one side of the controller (4) for electrical connection with the plurality of antennas (2), and a reader interface (42) is provided on the other side. The antenna plate (1) has several antenna slots (11) in the identification plane. The antenna (2) is installed in the antenna slot (11). A common area is formed between adjacent antenna slots (11), and adjacent antenna slots (11) are interconnected through the common area. The shape of the antenna slot (11) is consistent with the structure of the antenna (2), and both are set as rectangles, but do not form a closed loop; several PCB slots (12) are opened in the antenna plate (1), and each of the PCB slots (12) is located in the rectangular plane enclosed by the antenna slots (11). The two ends of the antenna slots (11) are connected to the PCB slots (12); PCB boards are installed in the PCB slots (12), and the two ends of the antenna (2) are connected to the corresponding PCB boards; The PCB board is connected to the antenna interface (41) on the controller via an RF cable; The antenna (2) is specifically configured as three, and the antenna slot (11) is also specifically configured as three, all of which are laid flat inside the antenna plate (1); the antenna interface (41) is also configured as three.

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