Pifa antenna assembly

Abstract

The utility model provides a PIFA antenna combination device, including substrate and a plurality of PIFA antennas of being located on the substrate, PIFA antenna includes antenna bottom plate, two first radiating arms, a second radiating arm, a first connecting piece and a second connecting piece, the first connecting piece connects two first radiating arms, and two first radiating arms are respectively located in the both sides of first connecting piece and are centrally symmetric with first connecting piece, and two first radiating arms are arranged in parallel with antenna bottom plate, the other side of two first radiating arms is connected with second connecting piece, and second connecting piece extends to antenna bottom plate direction and is bent with the extension piece parallel with antenna bottom plate, and the extension piece extends and exceeds the end of first radiating arm, and the extension piece connects second radiating arm, and second radiating arm is arranged perpendicularly with antenna bottom plate, the utility model can reduce the interference between first radiating arm and second radiating arm, reduces the length of resonant cavity, can reduce the space occupation, is favorable to antenna miniaturization.

Description

Technical Field

[0001] This utility model relates to the field of antenna technology, and in particular to a PIFA antenna assembly device. Background Technology

[0002] Antennas transmit information via electromagnetic waves and are used in various devices such as handheld electronic devices, automobiles, and 5G base stations for information exchange and transmission. Larger devices, such as automobiles and 5G base stations, utilize a large number of antennas, necessitating multi-frequency miniaturization. However, existing multi-frequency miniaturized antennas suffer from insufficient isolation, mutual interference, and large dimensions due to structural design and installation limitations, thus impacting communication requirements. Utility Model Content

[0003] The main purpose of this utility model is to overcome the above-mentioned shortcomings and deficiencies of the prior art and provide a PIFA antenna assembly device.

[0004] A PIFA antenna assembly includes a substrate and a plurality of PIFA antennas disposed on the substrate. Each PIFA antenna includes an antenna base plate, two first radiating arms, a second radiating arm, a first connector, and a second connector. The first connector connects to the two first radiating arms, which are respectively disposed on both sides of the first connector and symmetrically arranged with the first connector as the center. The two first radiating arms are parallel to the antenna base plate. The second connector connects to the other side of the two first radiating arms. The second connector extends towards the antenna base plate and is bent to form an extension parallel to the antenna base plate. The extension extends beyond the end of the first radiating arm and connects to the second radiating arm. The second radiating arm is perpendicular to the antenna base plate.

[0005] In one embodiment, the antenna base plate, two first radiating arms, one second radiating arm, one first connector, and one second connector are integrally formed by stamping.

[0006] In one embodiment, the end of the second radiating arm extends beyond the upper surface of the first radiating arm.

[0007] In one embodiment, the width of the second radiating arm gradually increases with distance from the antenna base plate, and the maximum width of the second radiating arm is located near the first radiating arm.

[0008] In one embodiment, the width of the first radiating arm gradually increases with distance from the first connector, and the maximum width of the first radiating arm is located near the second radiating arm.

[0009] In one embodiment, a positioning hole is provided on the antenna base plate, the positioning hole is located below the first radiating arm, and a positioning post is provided on the substrate, the positioning post being inserted into the positioning hole.

[0010] In one embodiment, the antenna base plate has a plurality of mounting holes, which are located on a side away from the first radiating arm, the second radiating arm and the positioning hole.

[0011] In one embodiment, a first through hole is provided on the antenna base plate, which is located between the positioning hole and the mounting hole. Correspondingly, a second through hole is provided on the substrate, and a wire passing through the first through hole and the second through hole is connected to the extension member.

[0012] The beneficial effects of this utility model are as follows: the two first radiating arms extend horizontally to both sides, and the second radiating arm extends vertically upward. Interference between the first and second radiating arms can be reduced. The design between the first and second radiating arms can reduce the length of the resonant cavity, reduce space occupation, and facilitate antenna miniaturization. The extension connecting wire of the PIFA antenna can avoid communication interference caused by installation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the PIFA antenna assembly device of this utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the structure of the PIFA antenna in the PIFA antenna assembly device of this utility model;

[0015] Figure 3 for Figure 2 Another structural diagram of the PIFA antenna in the PIFA antenna assembly device of this utility model;

[0016] Figure 4 for Figure 2 A cross-sectional view of the PIFA antenna in the mounting module of the PIFA antenna assembly device of this utility model;

[0017] Figure 5 for Figure 1 A partial structural diagram of the PIFA antenna in the PIFA antenna assembly device of this utility model;

[0018] Figure 6 for Figure 1 A partial cross-sectional view of the mounting module in the PIFA antenna assembly device of this utility model. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between 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.

[0023] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] This utility model discloses a PIFA antenna assembly device, including a substrate and a plurality of PIFA antennas disposed on the substrate. The PIFA antenna includes an antenna base plate, two first radiating arms, a second radiating arm, a first connector, and a second connector. The first connector connects the two first radiating arms, which are respectively disposed on both sides of the first connector and symmetrically arranged with the first connector as the center. The two first radiating arms are arranged parallel to the antenna base plate. The second connector connects to the other side of the two first radiating arms. The second connector extends towards the antenna base plate and is bent to have an extension parallel to the antenna base plate. The extension extends beyond the end of the first radiating arm and connects to the second radiating arm. The second radiating arm is arranged perpendicular to the antenna base plate.

[0025] This invention extends two first radiating arms horizontally to both sides, and the second radiating arm extends vertically upward. Interference between the first and second radiating arms can be reduced. The design between the first and second radiating arms can reduce the length of the resonant cavity, reduce space occupation, and facilitate antenna miniaturization. The extension connecting wire of the PIFA antenna can avoid communication interference caused by installation.

[0026] Example

[0027] Please see Figures 1 to 4 This utility model provides a PIFA antenna assembly device 100, including a substrate 1 and a plurality of PIFA antennas 2 disposed on the substrate. The PIFA antenna 2 includes an antenna base plate 21, two first radiating arms 22, a second radiating arm 23, a first connector 24, and a second connector 25. The first connector 24 connects the two first radiating arms 22. The two first radiating arms 22 are respectively disposed on both sides of the first connector 24 and are symmetrically arranged with the first connector 24 as the center. The two first radiating arms 22 are arranged parallel to the antenna base plate 21. The second connector 25 connects the other side of the two first radiating arms 22. The second connector 25 extends toward the antenna base plate 21 and is bent to have an extension 26 parallel to the antenna base plate 21. The extension 26 extends beyond the end of the first radiating arm 22 and is connected to the second radiating arm 23. The second radiating arm 23 is arranged perpendicular to the antenna base plate 21. Preferably, the antenna base plate 21, the two first radiating arms 22, the second radiating arm 23, the first connector 24, and the second connector 25 are integrally formed by punching and bending.

[0028] This invention extends two first radiating arms 22 horizontally to both sides and a second radiating arm 23 vertically upward. Interference between the first radiating arms 22 and the second radiating arms 23 can be reduced. The design between the first radiating arms 22 and the second radiating arms 23 can reduce the length of the resonant cavity, reduce space occupation, and facilitate antenna miniaturization.

[0029] For more details, please refer to Figures 2 to 4 The end of the second radiating arm 23 extends beyond the upper surface of the first radiating arm 22. Preferably, the width of the second radiating arm 23 gradually increases with distance from the antenna base plate 21, and the maximum width of the second radiating arm 23 is located near the first radiating arm 22. More preferably, the width of the first radiating arm 22 gradually increases with distance from the first connector 24, and the maximum width of the first radiating arm 22 is located near the second radiating arm 23.

[0030] For more details, please refer to Figures 2 to 6 The antenna base plate 21 has a positioning hole 211 located below the first radiating arm 22. A positioning post 11 is provided on the base plate 1, and the positioning post 11 is inserted into the positioning hole 211. Preferably, there are two positioning holes 211. The top of the positioning post 11 does not exceed the upper surface of the positioning hole 211.

[0031] For more details, please refer to Figures 2 to 6 The antenna base plate 21 has several mounting holes 212, which are located on the side away from the first radiating arm 22, the second radiating arm 23, and the positioning hole 211. Mounting screws 3 are installed in the mounting holes 212 to fix the antenna base plate 21 to the substrate 1. Preferably, there are two mounting holes 212.

[0032] For more details, please refer to Figures 2 to 6 The antenna base plate 21 has a first through hole 213 located between the positioning hole 211 and the mounting hole 212. Correspondingly, the substrate 1 has a second through hole 12. The wire 4 passing through the first through hole 213 and the second through hole 12 is connected to the extension member 26. The wiring arrangement of the extension member 26 of the PIFA antenna 2 can avoid communication interference caused by installation.

[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A PIFA antenna assembly, characterized in that: The device includes a substrate and a plurality of PIFA antennas disposed on the substrate. The PIFA antennas include an antenna base plate, two first radiating arms, a second radiating arm, a first connector, and a second connector. The first connector connects the two first radiating arms, which are respectively disposed on both sides of the first connector and symmetrically arranged with the first connector as the center. The two first radiating arms are arranged parallel to the antenna base plate. The second connector connects to the other side of the two first radiating arms. The second connector extends toward the antenna base plate and is bent to have an extension parallel to the antenna base plate. The extension extends beyond the end of the first radiating arm and connects to the second radiating arm. The second radiating arm is arranged perpendicular to the antenna base plate.

2. The PIFA antenna assembly according to claim 1, characterized in that: The antenna base plate, two first radiating arms, one second radiating arm, one first connector, and one second connector are integrally formed by stamping.

3. The PIFA antenna assembly according to claim 1, characterized in that: The end of the second radiating arm extends beyond the upper surface of the first radiating arm.

4. The PIFA antenna assembly according to claim 1, characterized in that: The width of the second radiating arm gradually increases as it moves away from the antenna base plate, with the maximum width of the second radiating arm located near the first radiating arm.

5. The PIFA antenna assembly according to claim 1, characterized in that: The width of the first radiating arm gradually increases as it moves away from the first connector, and the maximum width of the first radiating arm is located near the second radiating arm.

6. The PIFA antenna assembly according to claim 1, characterized in that: The antenna base plate has a positioning hole located below the first radiating arm, and the base plate has a positioning post inserted into the positioning hole.

7. The PIFA antenna assembly according to claim 6, characterized in that: The antenna base plate has several mounting holes, which are located on the side away from the first radiating arm, the second radiating arm, and the positioning hole.

8. The PIFA antenna assembly according to claim 7, characterized in that: The antenna base plate has a first through hole, which is located between the positioning hole and the mounting hole. Correspondingly, the substrate has a second through hole, and the wire passing through the first through hole and the second through hole is connected to the extension member.

Images