TWM571057U - Stereo antenna with isolation mechanism - Google Patents

Abstract

The present invention is a stereoscopic antenna with an isolation mechanism applied to an embedded wireless base station and can be fixed to a circuit board, including two antennas, an electric metal wire, at least one low frequency band isolation metal plate or two. a high-frequency isolation metal plate, wherein the antennas have the same configuration and are separated by a distance, and the two ends of the electrical metal wire are respectively connected to the antennas, and the low-band isolation metal plate can be connected to the electrical metal In the middle region of the line, the two high-band isolation metal plates are respectively connected to the two ends of the adjacent electrical metal lines, and when the antennas are applied to the low frequency band, the low-band isolation metal plate can generate a multi-axial current distribution. In order to form a decoupling effect of the low frequency band, when the antennas are applied to the high frequency band, the two high frequency isolation metal plates can generate reverse currents respectively with the antenna to form a decoupling effect of the high frequency band.

Description

Stereo antenna with isolation mechanism

This creation is about a three-dimensional antenna, especially a low-band isolation metal plate and/or a high-band isolation metal plate, and can form a good isolation (Isolation) when the stereo antenna acts on a low frequency band or a high frequency band. Acting stereo antenna.

According to the rapid development of the wireless communication industry, various wireless communication devices are constantly being updated. The requirements for such wireless communication devices in the market, in addition to focusing on the thinness and shortness of its appearance, more emphasis on whether it can balance the stable transmission of signals. Communication quality, among which "antenna" is a key component in these wireless communication devices, which is indispensable for transmitting and receiving wireless signals and transmitting data. The development of related technologies has also become related with the rapid development of the wireless communication industry. The focus of the technical field.

According to the above, "antenna" is an electric conductor or a conductive system capable of emitting electromagnetic energy into or receiving electromagnetic energy from space. Generally speaking, the antenna radiates electromagnetic energy in all directions at the same time, so that the electromagnetic The wireless signal formed by the energy can be received by other electronic devices at the far end. According to different antenna structures, the transmission performance of the wireless signal in different directions is also different. However, for the small-sized room type, the living can be saved. Space, there are more and more users using "embedded wireless base station" products, but because the "embedded wireless base station" is used in the wall, it is embedded in the wall. Taking into account the characteristics of the field shape, isolation, return loss ratio, etc. that the antenna can form, it is more severe and difficult than the general desktop wireless base station.

Taking isolation (Isolation) as an example, when an "embedded wireless base station" uses the structure of a dual-frequency MIMO antenna, the operator usually adjusts the space and distance between the two antennas to form a specific frequency band (eg, 2G). 5G) the required isolation, but the above structure will be affected by the thinner and lighter and more difficult to design. At the same time, the industry also needs to assemble the multiple antennas one by one onto the circuit board, which delays the production efficiency and is used by the industry. When the antenna is a three-dimensional structure, the antenna or the machine is often improperly applied, causing the antenna to bend and fail to work normally. Therefore, how to design a more suitable antenna architecture for the "embedded wireless base station" is an important issue that this creation is intended to solve.

In view of the different installation environments applied to the "embedded wireless base station" and the general desktop wireless base station, and the multiple antennas used in the system are independently set, which causes difficulty in production and design, the creator After long-term efforts and research, I finally developed and designed a three-dimensional antenna with isolation mechanism, in order to solve the above problems effectively through the creation of this creation.

One of the purposes of the present invention is to provide a stereoscopic antenna with an isolation mechanism applied to an embedded wireless base station and fixed to a circuit board, including a first antenna, a second antenna, and a The electrical metal wire is separated from the at least one low frequency band, wherein the first antenna and the second antenna are configured in the same shape and respectively located at corresponding positions on the circuit board, and separated by a distance, the antennas respectively a main body and an auxiliary plate body are disposed, the bottom end of the main body is provided with a feeding end for electrically connecting with a feeding component, and the top end of the main body is along the axis of the circuit board Extending in a line direction and connected to a top end of the auxiliary board body, a middle section of the auxiliary board body is spaced apart from the board body, and a bottom end of the auxiliary board body is fixed to the circuit board, and The two ends of the electric metal wire are respectively connected to the auxiliary plate body, and the bottom end of the low frequency isolation metal plate is connected to the intermediate portion of the electric metal wire, and the top end thereof extends along the axis direction of the circuit board. When the first antenna and the second antenna act on the low frequency band, the low frequency isolation metal plate can generate a multi-axial current distribution to form a decoupling effect of the low frequency band.

Another object of the present invention is to provide a stereoscopic antenna with an isolation mechanism, which is applied to an embedded wireless base station and can be fixed to a circuit board, including a first antenna and a second antenna. An electrical metal wire and a two-high-frequency isolation metal plate, wherein the first antenna and the second antenna have the same configuration, and are respectively located at corresponding positions on the circuit board, and separated by a distance, the antennas respectively a main body and an auxiliary plate body are disposed, the bottom end of the main body is provided with a feeding end for electrically connecting with a feeding component, and the top end of the main body extends along an axis of the circuit board, and The top end of the auxiliary board body is connected, the middle section of the auxiliary board body is spaced apart from the board body, and the bottom end of the auxiliary board body is fixed to the circuit board, and the second of the electric metal lines The two ends are respectively connected to the auxiliary plate body, and the two high-band isolation metal plates are respectively adjacent to the two auxiliary plate bodies, and the bottom end thereof is connected to the electrical metal wire, and the top end thereof extends along the axis direction of the circuit board. When the first antenna and the second antenna act on the high frequency When the two high frequency isolation of the metal plate can generate a reverse current to the two auxiliary plate, to form a high frequency decoupling effect.

For the sake of your review, you can make a further understanding and understanding of the purpose, technical features and efficacy of this creation. The examples are shown in the following diagram:

[study]

no

[this creation]

1‧‧‧first antenna

11‧‧‧ First board body

111‧‧‧First feed end

12‧‧‧The first shot

13‧‧‧First auxiliary plate

2‧‧‧second antenna

21‧‧‧Second main body

211‧‧‧second feed end

22‧‧‧Second shot

23‧‧‧Second auxiliary plate body

3‧‧‧Electrical wire

41, 51, 61, 71‧‧‧Low-band isolation metal plates

411, 511‧‧‧ connection plate

413, 613, 713‧‧‧ extended plate

42A, 42B, 52A, 52B, 62A, 62B, 72A, 72B‧‧‧ high frequency isolation metal plates

E‧‧‧PCB

L‧‧‧ axis

1 is a schematic diagram of a first embodiment of the present invention; FIG. 2A is a current simulation diagram of a first antenna of the first embodiment of the present invention in a low frequency band; FIG. 2B is a first embodiment of the present invention a current simulation diagram of the second antenna at a low frequency band; FIG. 3A is a current simulation diagram of the first antenna of the first embodiment in the high frequency band; FIG. 3B is a second embodiment of the first embodiment of the present creation The current simulation diagram of the antenna in the high frequency band; the fourth diagram is the antenna S parameter diagram of the first embodiment of the present invention; the fifth diagram is the schematic diagram of the second embodiment of the present creation; the sixth diagram is the second of the creation The first antenna of the embodiment is a current simulation diagram of the low frequency band; the sixth embodiment is a current simulation diagram of the first antenna of the second embodiment of the present invention at a high frequency band; and FIG. 7 is a third embodiment of the present creation. FIG. 8A is a current simulation diagram of the first antenna of the third embodiment of the present invention in the low frequency band; FIG. 8B is a current simulation diagram of the first antenna of the third embodiment of the present invention in the high frequency band. Figure 9 is a schematic view of a fourth embodiment of the present invention; Figure 10A is a fourth embodiment of the present invention A current simulation diagram of an antenna at a low frequency band; and FIG. 10B is a current simulation diagram of a first antenna of the fourth embodiment of the present invention at a high frequency band.

The present invention is a stereo antenna with an isolation mechanism applied to an embedded wireless base station. Referring to FIG. 1 , in a first embodiment, the stereo antenna includes a first antenna 1 . a second antenna 2, an electrical metal wire 3, at least one low-band isolation metal plate 41 and two high-band isolation metal plates 42A, 42B, the three-dimensional antenna can be integrally formed from a metal sheet to improve the industry Production convenience and speed, but in other embodiments of the present invention, the manufacturer can also be assembled by welding a plurality of pieces of metal, and the stereo antenna can be fixed to a circuit board E. In order to avoid the complexity of the drawing, the first figure omits the circuit and other electronic components on the circuit board E. However, those skilled in the art can adjust the appearance of the circuit board E according to the product requirements, as long as the three-dimensional The antenna has the related structure described in the following, and can be directly erected on the circuit board E, that is, the stereo antenna described in the present invention.

Referring to FIG. 1 , the first antenna 1 can form a resonant low frequency band (eg, 2.4 GHz to 2.5 GHz) and a high frequency band (eg, 5 GHz to 6 GHz) modal to receive or transmit corresponding frequencies. In the embodiment, the first antenna 1 is composed of a first main body 11 , a first radiating body 12 and a first auxiliary body 13 , wherein the first main body 11 The bottom end is provided with a first feeding end 111, the first feeding end 111 can be electrically connected to a feeding element, for example, the feeding element can be a feeding line, and one end of the feeding line can be welded to the The first feeding end 111, or the feeding element can be a contact on the circuit board E, the first feeding end 111 can be soldered to the contact, and the contact can be electrically connected to the feeding line connection.

Referring to FIG. 1 , in the first embodiment, the top end of the first main body 11 extends upward along the axis L of the circuit board E and is coupled to the first radiator 12 . One end of the first radiating body 12 is horizontally extended toward the axis L of the circuit board E, that is, the bottom surface of the first radiating body 12 and the first main body 11 The inner side surface (ie, the direction toward the circuit board E) is kept vertical. Further, in this embodiment, the first radiator 12 is T-shaped, and the other narrow end extends as a free end, but does not To be limited, the manufacturer can adjust the shape of the first shot body 12 according to the product requirements. In addition, the first auxiliary board body 13 is spaced apart from the first main board body 11 and has a top end connected to one end of the first radiating body 12, and a bottom end thereof can be fixed to the circuit board E. In this embodiment, the area of the first auxiliary board body 13 is smaller than the area of the first main board body 11, and the inner side surface of the first auxiliary board body 13 and the first main board body 11 The inner side is kept at the same level. In addition, in other embodiments of the present invention, the first antenna 1 can be a dual-frequency antenna or a single-frequency antenna according to the operational requirements of the antenna, and the first antenna 1 can be configured without the first radiator 12 Only the top ends of the first main body 11 and the first auxiliary plate body 13 are connected, and the intermediate sections of the two can be spaced apart by a distance.

Referring to FIG. 1 , in the first embodiment, the second antenna 2 has the same configuration as the first antenna 1 , and its position on the circuit board E also corresponds to the first antenna. An antenna 1 and a second antenna 2 are formed by at least a second main body 21, a second radiating body 22 and a second auxiliary body 23, wherein the bottom of the second main body 21 A second feeding end 211 is disposed at the end to be electrically connected to another feeding component of the circuit board E (eg, a feeding line or another contact on the circuit board E), the second main body 21 The top end extends upward in the direction of the axis of the circuit board E and is connected to one end of the second radiating body 22, and the other end of the second radiating body 22 extends horizontally perpendicular to the axis L of the circuit board E. That is, the bottom surface of the second radiating body 22 is perpendicular to the inner side surface of the second main body body 21 (ie, the direction toward the circuit board E), and the other end of the second radiating body 22 can correspond to At the other end of the first body 12, the second auxiliary plate body 23 is spaced apart from the second main body body 21, and the top end thereof is opposite to the second end of the second body 22. The second auxiliary board body 23 has an area smaller than the area of the second main board body 21, and the second auxiliary board body 23 is connected to the circuit board E. The inner side surface is kept at the same level as the inner side surface of the second main body body 21, but not limited thereto, and the second antenna 2 can also be a dual-frequency antenna or a single-frequency antenna, and no second radiation is provided. Body 22.

Referring to FIG. 1 , in this embodiment, the electrical metal wire 3 is U-shaped (not limited thereto), and one end thereof can be connected to the first auxiliary plate body 13 and the other end thereof. The second auxiliary board body 23 can be connected to the second auxiliary board body 23. In the first embodiment, the two ends of the electric metal line 3 are located adjacent to each other. The bottom end positions of the first and second auxiliary boards 13 and 23 are at the periphery of the circuit board E. However, in other embodiments of the present invention, the operator can also adjust the electric metal line 3 and the first The position of the two auxiliary plates 13, 23 or the circuit board E with each other.

Furthermore, as shown in FIG. 1 , in the first embodiment, the bottom end of the low-band isolation metal plate 41 is connected to the electrical metal wire 3, and the top end thereof is first along the circuit board E. The axis L extends upwardly and can be bent to extend horizontally perpendicular to the axis L of the circuit board E. Further, the low-band isolation metal plate 41 is further provided with at least one connecting plate body 411 (Fig. 1 to two) The connecting plate body 411 is an example) and at least one extending plate body 413 (the first drawing is exemplified by two extending plate bodies 413), and the bottom end of the connecting plate body 411 can be connected to the electrical metal wire 3, and the like. The top end of the connecting plate body 411 can extend obliquely to the low-frequency isolating metal plate 41, and the extending plate bodies 413 extend away from the low-band isolating metal plate 41, respectively (as shown in FIG. 1). However, the electrical metal wire 3, the first antenna 1 and the second antenna 2 are not touched. Therefore, please refer to the current simulation diagram of the stereo antenna as shown in FIGS. 2A-2B. The first antenna 1 and the second antenna 2 are separately excited (the second antenna is when the first antenna 1 is excited, and the second antenna 2 is excited when the second antenna 2 is excited). Low band: when (e.g., 2G), the low-band isolation metal plate 41 can produce multi-axial current distribution (dashed arrows), to form a low frequency decoupling effect.

Referring to FIG. 1 , in the first embodiment, a high frequency isolation metal plate 42A is located adjacent to the first auxiliary plate body 13 and is separated from the first auxiliary plate body 13 . The bottom end of the high-frequency isolation metal plate 42A is connected to the electrical metal wire 3, and the top end of the high-band isolation metal plate 42A extends upward along the axis L of the circuit board E, and another high The band isolation metal plate 42B is adjacent to the second auxiliary plate body 23 and spaced apart from the second auxiliary plate body 23. The bottom end of the high frequency isolation metal plate 42B is connected to the electrical metal wire 3, and the top end thereof is also connected. It will extend upward along the axis L of the circuit board E. In this embodiment, the high frequency isolation metal plate 42B corresponds to both the high frequency isolation metal plate 42A, and the low frequency isolation metal plate 41 is in the second high frequency band. Between the isolation metal plates 42A and 42B, as shown in FIGS. 3A-3B, the current simulation diagram of the stereo antenna is used, and the first antenna 1 and the second antenna 2 are excited separately. When the 3A picture is that the first antenna 1 is excited, and the 3B picture is when the second antenna 2 is excited) and acts on a high frequency band (for example, 5G), the high-frequency isolation metal plates 42A and 42B can respectively Reverse current is generated with the first auxiliary plate body 13 and the second auxiliary plate body 23 (as indicated by a broken line arrow, in particular, the high frequency band isolation metal plates 42A, 42B and the corresponding first auxiliary plate body 13 and the second The short-circuited region of the auxiliary plate body 23) forms a decoupling effect of a high frequency band.

In summary, as shown in the antenna S parameter diagram of FIG. 4, the first antenna 1 and the second antenna 2 can be surely configured by the structure of the low-band isolation metal plate 41 and the high-band isolation metal plates 42A and 42B. When applied to low frequency bands (eg 2.4 GHz to 2.5 GHz) and high frequency bands (5.15 GHz to 5.85 GHz), the pattern of thin line segments as shown in Fig. 4 is formed, thereby creating a good high isolation (Isolation) effect (eg In addition, since the first antenna 1, the second antenna 2, the low-band isolation metal plate 41, and the high-band isolation metal plates 42A, 42B are all fixed on the electrical metal wire 3, The whole is formed, and therefore, it is convenient and stable in assembly, and the operator can assemble the three-dimensional antenna to the circuit board E at one time without assembling in batches, thereby greatly improving the convenience in production.

In other embodiments of the present invention, the operator can adjust the low-band isolation metal plate and the high-band isolation metal plate according to the demand of the product. For example, the first and second isolation metal plates can be straight, or Each of the partial regions of the first and second isolation metal plates can have different widths or even other variations. For example, as shown in FIG. 5, in the second embodiment, the low-band isolation metal plate 51 is provided. Some connecting plate body 511 can be perpendicular to the electrical metal Line 3, instead of being inclined as shown in Fig. 1, further, the top ends of the high-band isolating metal plates 52A, 52B can be bent and extended upward instead of the straight strip as in Fig. 1, see Figures 6A-6B As shown, the low-band isolation metal plate 51 and the high-band isolation metal plates 52A, 52B can generate a current flow pattern as in the first embodiment to form an isolation effect on the low frequency band and the high frequency band, respectively; As shown in the figure, in the third embodiment, the low-band isolation metal plate 61 is only provided with the extension plate body 613, and the connection plate body is not provided, and the top end of the low-band isolation metal plate 61 is not bent and extended. The top ends of the high-band isolation metal plates 62A, 62B are bent and extend horizontally toward the axis L of the vertical circuit board E (as shown in FIG. 1), as shown in Figures 8A-8B, the low-band isolation metal plate 61 and the high-band isolation metal plates 62A, 62B can generate a current flow pattern as in the first embodiment to form an isolation effect on the low frequency band and the high frequency band, respectively; see FIG. 9, in the fourth embodiment The three-dimensional antenna is provided with two low-band isolation metal plates 71, and the low The band isolation metal plates 71 are respectively provided with an extension plate body 713, each of the extension plate bodies 713 can be L-shaped, and the free ends thereof are bent and extended toward the direction of the electric metal wires 3, and each of the high frequency band isolation metal plates The tops of the 72A and 72B are bent into a U shape, and one side of each of the high frequency isolation metal plates 72A, 72B is maintained at the same level as the side surfaces of the corresponding first main body 11 and the second main body 21. Referring to FIGS. 10A-10B, the low frequency isolation metal plate 71 and the high frequency isolation metal plates 72A, 72B can generate a current flow pattern as in the first embodiment to isolate the low frequency band from the high frequency band, respectively. effect.

It is hereby stated that, in the foregoing embodiment, the stereoscopic antenna has two isolation mechanisms, namely, a low-band isolation metal plate and a high-band isolation metal plate, but depending on the type of the antenna, it is also possible to provide only a single isolation. The mechanism, for example, when the first antenna is a "2.4 GHz to 2.5 GHz" single-frequency antenna and the second antenna is a "2.4 GHz to 2.5 GHz, 5 GHz to 6 GHz" dual-frequency antenna, Low frequency band isolation metal plate, another, when When the antenna is a "2.4GHz~2.5GHz, 5GHz~6GHz" dual-band antenna, and the second antenna is a "5GHz~6GHz" single-frequency antenna, it can only have a high-band isolation metal plate. The stereo antenna can meet the various needs of users.

According to the above description, it is only a preferred embodiment of the present invention, but the scope of the claims claimed by the present invention is not limited thereto, and according to those skilled in the art, according to the technical content disclosed in the present invention, Equivalent changes that are easily thought of should be in the protection of this creation.

Claims (20)

A three-dimensional antenna with an isolation mechanism is applied to an embedded wireless base station and can be fixed to a circuit board, including: a first antenna, at least a first main body and a first auxiliary body The first main body of the first main body is provided with a first feeding end for electrically connecting with a feeding element, and the top end of the first main body extends along an axis of the circuit board. The top end of the auxiliary board body is connected to the top end of the first main board body, the middle section of the first auxiliary board body is spaced apart from the first main board body, and the bottom end of the first auxiliary board body can Fixed to the circuit board; a second antenna corresponding to the first antenna, and at least composed of a second main body and a second auxiliary plate body, wherein the bottom end of the second main body a second feeding end is electrically connected to the other feeding element, and a top end of the second auxiliary board body is connected to a top end of the second main board body, and a middle section of the second auxiliary board body is Separating from the second main body by a distance, and the bottom end of the second auxiliary body can be fixed to the circuit An electric metal wire having one end connected to the first auxiliary plate body and the other end connected to the second auxiliary plate body; and at least one low frequency band isolating metal plate, the bottom end of which is connected to the electrical a metal wire having a top end extending along an axis of the circuit board. The low frequency band isolation metal plate can generate a multi-axial current distribution in a state where the first antenna and the second antenna act on a low frequency band. The decoupling effect of the low frequency band is formed. The stereo antenna of claim 1, wherein the first antenna further includes a first radiator, and one end of the first radiator is opposite to the first main body and the first auxiliary body The top ends of the first emitters are horizontally extended toward the axis of the vertical board. The stereo antenna of claim 2, wherein the second antenna further includes a second antenna, and one end of the second antenna is opposite to the second main body and the second auxiliary body Top phase Connected, the other end of the second emitter extends horizontally perpendicular to the axis of the circuit board. The stereoscopic antenna of claim 3, wherein the stereoscopic antenna is integrally formed. The stereoscopic antenna of claim 4, wherein the top end of the low-band isolation metal plate is bent to extend horizontally perpendicular to the axis of the circuit board. The three-dimensional antenna of claim 5, wherein the low-band isolation metal plate further comprises at least one connecting plate body, and the bottom end of each of the connecting plate bodies can be connected to the electrical metal wire. The three-dimensional antenna of claim 6, wherein the low-band isolation metal plate further comprises at least one extension plate body, each extension plate system extending away from the low-band isolation metal plate and not touching The electrical metal line, the first antenna and the second antenna. The three-dimensional antenna according to any one of claims 1 to 7, further comprising two high-band isolation metal plates, wherein a high-band isolation metal plate is adjacent to the first auxiliary plate body, and another high-band isolation metal plate is adjacent to The second auxiliary board body is disposed between the two high-band isolation metal plates, and the bottom end of the high-frequency isolation metal plate is connected to the electric metal line, and the high-frequency band is isolated. The top end of the metal plate extends along the axis of the circuit board, and in the state where the first antenna and the second antenna act on the high frequency band, the high-frequency isolation metal plates can respectively be combined with the first auxiliary plate body And the second auxiliary plate body generates a reverse current to form a decoupling effect of the high frequency band. The stereoscopic antenna of claim 8, wherein the top end of each of the high frequency isolation metal plates extends horizontally perpendicular to the axis of the circuit board. The stereoscopic antenna of claim 9, wherein the top end of each of the high frequency isolation metal plates is bent into a U shape, and one side of each of the high frequency isolation metal plates is associated with the first main body And one side of the second main body body maintains the same horizontal plane. A three-dimensional antenna with an isolation mechanism is applied to an embedded wireless base station and can be fixed to a circuit board, including: The first antenna is formed by at least a first main body and a first auxiliary board. The bottom end of the first main body is provided with a first feeding end to be electrically connected to a feeding component. Connecting, the top end of the first main body extends along the axis of the circuit board, and the top end of the first auxiliary board is connected to the top end of the first main body, and the middle section of the first auxiliary board a first distance from the first main body, and a bottom end of the first auxiliary board can be fixed to the circuit board; a second antenna corresponding to the first antenna, and at least a second main body And a second auxiliary board body, wherein the second main body of the second main body is provided with a second feeding end to be electrically connected to another feeding element, and the top end of the second auxiliary board is matched with The second main body of the second main body is connected to the second main body, and the bottom end of the second auxiliary board is fixed to the circuit board; a metal wire having one end connected to the first auxiliary plate body and the other end connected to the second auxiliary plate body; and two high frequency An isolation metal plate, wherein a high frequency isolation metal plate is adjacent to the first auxiliary plate body, and another high frequency isolation metal plate is adjacent to the second auxiliary plate body, and the bottom end of the high frequency band isolation metal plate is connected to the An electric metal wire, the top end of the high-frequency isolation metal plate extends along an axis of the circuit board, and the high-frequency isolation metal is in a state where the first antenna and the second antenna are applied to a high frequency band. The board can generate a reverse current with the first auxiliary board body and the second auxiliary board body respectively to form a decoupling effect of a high frequency band. The stereo antenna of claim 11, wherein the first antenna further includes a first radiating body, and one end of the first radiating body is opposite to the first main body and the first auxiliary plate The top ends of the first emitters are horizontally extended toward the axis of the vertical board. The stereo antenna of claim 12, wherein the second antenna further includes a second antenna, and one end of the second antenna is opposite to the second main body and the second auxiliary body Top of the person The ends are connected, and the other end of the second emitter extends horizontally perpendicular to the axis of the board. The three-dimensional antenna according to claim 13, wherein the three-dimensional antenna is integrally formed. The stereoscopic antenna of claim 14, wherein the top end of each of the high frequency isolation metal plates extends horizontally perpendicular to the axis of the circuit board. The stereoscopic antenna of claim 15, wherein the top end of each of the high-band isolation metal plates is bent into a U shape, and one side of each of the high-band isolation metal plates is associated with the first main body And one side of the second main body body maintains the same horizontal plane. The three-dimensional antenna of any one of claims 11 to 16, further comprising at least one low-band isolation metal plate, wherein the bottom end of each of the low-band isolation metal plates is connected to the electrical metal wire and located at the second high Between the band isolation metal plates, the top ends of the low-band isolation metal plates extend along the axis of the circuit board, and the low-band isolation is performed when the first antenna and the second antenna act on the low frequency band. The metal plate can produce a multi-axial current distribution to form a decoupling effect at a low frequency band. The stereoscopic antenna of claim 17, wherein the top end of the low-band isolation metal plate is bent to extend horizontally perpendicular to the axis of the circuit board. The three-dimensional antenna of claim 18, wherein the low-band isolation metal plate further comprises at least one connecting plate body, and the bottom end of each of the connecting plate bodies can be connected to the electrical metal wire. The three-dimensional antenna of claim 19, wherein the low-band isolation metal plate further comprises at least one extension plate body, each extension plate system extending away from the low-band isolation metal plate and not touching The electrical metal line, the first antenna and the second antenna.