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CN112563727A - Antenna structure assembly - Google Patents

Antenna structure assembly Download PDF

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Publication number
CN112563727A
CN112563727A CN201911191316.2A CN201911191316A CN112563727A CN 112563727 A CN112563727 A CN 112563727A CN 201911191316 A CN201911191316 A CN 201911191316A CN 112563727 A CN112563727 A CN 112563727A
Authority
CN
China
Prior art keywords
antenna
conductive shielding
shielding wall
gap
structure assembly
Prior art date
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Granted
Application number
CN201911191316.2A
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Chinese (zh)
Other versions
CN112563727B (en
Inventor
曾冠学
江正雄
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MSI Computer Shenzhen Co Ltd
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MSI Computer Shenzhen Co Ltd
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Publication of CN112563727A publication Critical patent/CN112563727A/en
Application granted granted Critical
Publication of CN112563727B publication Critical patent/CN112563727B/en
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Anticipated expiration legal-status Critical

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/48Earthing means; Earth screens; Counterpoises
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/50Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/52Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure

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Abstract

The invention provides an antenna structure assembly, which comprises a first antenna, a second antenna, a conductive shielding wall and a connecting part. The first and second antennas are disposed on the ground plate, and a first gap between the first and second antennas is 1/40-1/2 of a wavelength corresponding to a highest operating frequency. The width of the second gap between the conductive shielding wall and the grounding plate is 1/40-1/2 of the wavelength corresponding to the highest operating frequency. The conductive shielding wall is partially overlapped with the first antenna and/or the second antenna on the projection plane, the height of the conductive shielding wall is greater than or equal to 1/2 of the height of the first antenna or the height of the second antenna, and the length of the conductive shielding wall is greater than or equal to 1/2 of the total length of the first antenna and the second antenna. The connecting part is electrically connected to the conductive shielding wall and the grounding plate, and the connecting part is located between the first antenna and the second antenna.

Description

Antenna structure assembly
Technical Field
The invention relates to the field of communication, in particular to an antenna structure assembly.
Background
Nowadays, the functional requirements of electronic products for wireless communication are increasing, and a plurality of antennas may be disposed in one product, but signal interference is easily generated between the antennas. Therefore, the isolation of the antenna becomes a key of the present wireless communication. In the past, there are several methods for improving the antenna isolation, the simplest method is to directly increase the distance between adjacent antennas, and the antenna isolation can be improved along with the increase of the adjacent distance. However, within the limited size of the product, the antenna is usually unable to provide a sufficient distance, so there is a practical limit.
Secondly, some documents propose to design the adjacent two antennas with different polarizations, thereby reducing the electromagnetic field interference between them. However, due to the different polarization of the two adjacent antennas, the overall radiation efficiency is easily decreased. Furthermore, a quarter-wave Isolator (Isolator) can be added between two antennas, but under the same size, although the addition of the Isolator can improve the isolation between adjacent antennas, the original characteristics of the antennas will be affected, and the quality of the communication received by the product in long-distance transmission will be reduced.
Disclosure of Invention
In order to solve the problems of the prior art, an antenna assembly is provided. The antenna structure assembly includes a first antenna, a second antenna, at least one conductive shielding wall and at least one connecting portion. The first antenna is arranged on the grounding sheet. The second antenna is arranged on the grounding plate and is close to the first antenna, and the width of a first gap between the first antenna and the second antenna is 1/40-1/2 of the wavelength corresponding to the highest operating frequency. The at least one conductive shielding wall is adjacent to the grounding plate, and a second gap is formed between each conductive shielding wall and the grounding plate, and the width of the second gap is 1/40-1/2 of the wavelength corresponding to the highest operating frequency. The projection of each conductive shielding wall and the first antenna and/or the projection of the second antenna at least partially overlap on a projection plane, the height of each conductive shielding wall is greater than or equal to 1/2 of the height of the first antenna or the height of the second antenna, and the total length of at least one conductive shielding wall is greater than or equal to 1/2 of the total length of the first antenna and the second antenna. The at least one connecting part is electrically connected with the at least one conductive shielding wall and the grounding sheet, and at least one of the at least one connecting part is positioned between the first antenna and the second antenna.
In some embodiments, at least one of the at least one conductive shielding wall has an opening.
In some embodiments, the at least one connection portion is directly connected to the ground pad.
In other embodiments, the at least one connection portion is not directly connected to the ground pad, but is electrically connected through capacitive coupling. In more detail, a width of the third gap between the at least one connection portion and the ground pad is less than 1/100 of the wavelength corresponding to the highest operation frequency.
In some embodiments, the at least one conductive shielding wall includes a first conductive shielding wall and a second conductive shielding wall, and the at least one connection portion includes a first connection portion and a second connection portion. The first conductive shielding wall is partially overlapped with the first antenna on a projection plane, the second conductive shielding wall is partially overlapped with the second antenna on the projection plane, the first connecting portion is connected with the grounding piece and the first conductive shielding wall, the second connecting portion is connected with the grounding piece and the second conductive shielding wall, and the first connecting portion and the second connecting portion are located between the first antenna and the second antenna.
In some embodiments, the first antenna and the second antenna are respectively disposed on a first edge and a second edge of the ground plate, the first edge and the second edge are substantially orthogonal, and the length extending directions of the first conductive shielding wall and the second conductive shielding wall are substantially orthogonal. Further, a fourth gap is formed between the first conductive shielding wall and the second conductive shielding wall, and the width of the fourth gap is in a range from 1/40 to 1/6 of the wavelength corresponding to the highest operating frequency.
In some embodiments, at least one of the at least one conductive shielding wall includes an extension portion extending from an upper edge of the conductive shielding wall in a direction toward the first antenna or the second antenna, and a length of the extension portion is less than or equal to 1/4 of a wavelength corresponding to a highest operating frequency.
In some embodiments, at least one of the at least one conductive shielding wall is located above the grounding plate, and the at least one conductive shielding wall is connected to the grounding plate through at least one connecting portion.
In some embodiments, the second gap is filled with a dielectric material.
In some embodiments, the highest operating frequency corresponds to a wavelength of 1 to 15 mm.
In the above embodiments, the gap is formed between the conductive shielding wall and the ground strip, and the conductive shielding wall and the ground strip are connected by the connecting portion between the first antenna and the second antenna, so that even when the distance between the first antenna and the second antenna is small, the characteristics of the antennas can be maintained, the isolation between the first antenna and the second antenna is further improved, and the antenna structure assembly is suitable for various electronic communication devices.
Drawings
Fig. 1 is a perspective view of a first embodiment of an antenna structure assembly.
Fig. 2 is a schematic top view of a first embodiment of an antenna structure assembly.
Fig. 3 is a perspective view of a second embodiment of an antenna assembly.
Fig. 4 is a perspective view of a third embodiment of an antenna assembly.
Fig. 5 is a side view of a third embodiment of an antenna assembly.
Fig. 6 is a perspective view of a fourth embodiment of an antenna assembly.
Fig. 7 is a perspective view of a fifth embodiment of an antenna assembly.
Fig. 8 is a perspective view of a sixth embodiment of an antenna structure assembly.
Fig. 9 is a perspective view of a seventh embodiment of an antenna assembly.
Fig. 10 is a perspective view of an eighth embodiment of an antenna assembly.
Fig. 11 is a perspective view of a ninth embodiment of an antenna assembly.
Fig. 12 is a perspective view of a tenth embodiment of an antenna assembly.
Fig. 13 is a perspective view of an eleventh embodiment of an antenna assembly.
Fig. 14 is a wave frequency chart of the comparative example.
Fig. 15 is a wave frequency diagram of the antenna structure assembly.
The reference numerals are explained below:
1 antenna structure assembly
10 first antenna
20 second antenna
30 conductive shielding wall
30A first conductive shielding wall
30B second conductive shielding wall
35 opening
37 extension part
40 connecting part
40A first connection
40B second connecting part
40C third connecting part
45 opening
50 dielectric material
100 ground slice
d1 width of first gap
d2 second gap width
d3 width of third gap
d4 fourth gap Width
G1 first gap
G2 second gap
G3 third gap
G4 fourth gap
Height of H conductive shielding wall
Length of L conductive shielding wall
h height of first/second antenna
100A first edge
100B first edge
Detailed Description
In the drawings, the widths of some of the elements, regions, etc. are exaggerated for clarity. Like reference numerals refer to like elements throughout the specification. It will be understood that when an element such as it is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present.
It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, components, regions or sections, these elements, components, regions and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region or section from another element, component, region, layer or section. Thus, a "first element," "component," "region," or "portion" discussed below could be termed a second element, component, region, or portion without departing from the teachings herein.
Furthermore, relative terms, such as "lower" or "bottom" and "upper" or "top," may be used herein to describe one element's relationship to another element, as illustrated. It will be understood that relative terms are intended to encompass different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in one of the figures is turned over, elements described as being on the "lower" side of other elements would then be oriented on "upper" sides of the other elements. Thus, the exemplary term "lower" can include both an orientation of "lower" and "upper," depending on the particular orientation of the figure. Similarly, if the device in one of the figures is turned over, elements described as "below" other elements would then be oriented "above" the other elements. Thus, the exemplary terms "below" or "beneath" can encompass both an orientation of above and below.
Fig. 1 is a perspective view of a first embodiment of an antenna structure assembly. Fig. 2 is a schematic top view of a first embodiment of an antenna structure assembly. As shown in fig. 1 and fig. 2, the antenna structure assembly 1 of the first embodiment includes a first antenna 10, a second antenna 20, a conductive shielding wall 30 and a connecting portion 40. Each of the first antenna 10 and the second antenna 20 is partially disposed on the ground strip 100 and extends above the ground strip 100. The second antenna 20 is adjacent to the first antenna 10, a first gap G1 is provided between the first antenna 10 and the second antenna 20, and a width d1 of the first gap G1 is 1/40 to 1/2, preferably 1/10 to 1/4, of the wavelength corresponding to the highest operating frequency. The conductive shielding wall 30 is adjacent to the ground plate 100, a second gap G2 is formed between the conductive shielding wall 30 and the ground plate 100, and a width d2 of the second gap G2 is in a range from 1/40 to 1/2, preferably from 1/10 to 1/4, of the wavelength corresponding to the highest operating frequency. Here, the operating frequency bands of the first antenna 10 and the second antenna 20 may correspond to LTE, Wifi, GPS, ultra-wideband, sub6GHz, mmWave, etc., and the width d1 of the first gap G1 is adjusted by the wavelength corresponding to the highest frequency. Typically, the highest operating frequency corresponds to a wavelength of 1 to 15mm, for example 2 to 8 mm. Preferably, the width d1 of the first gap G1 is less than 5 mm.
In the first embodiment, the extension directions of the conductive shielding wall 30, the first antenna 10 and the second antenna 20 in the longitudinal direction are substantially parallel to the normal direction of the ground strip 100, and the first antenna 10 and the second antenna 20 can be projected onto the conductive shielding wall 30. The connecting portion 40 connects the conductive shielding wall 30 and the ground strip 100 and is located between the first antenna 10 and the second antenna 20. However, the above is merely exemplary and not intended to be limiting. For example, the conductive shielding wall 30, the first antenna 10, and the second antenna 20 may not be parallel, but only at least partially overlap on the projection plane. In addition, the height H of the conductive shielding wall 30 is greater than or equal to 1/2 of the height H of the first antenna 10 or the second antenna 20, and the length L of the conductive shielding wall 30 is greater than or equal to 1/2 of the total length of the first antenna 10 and the second antenna 20. Therefore, the effect of metal shielding is achieved, the interference of external signals is reduced, and the isolation of the two antennas is effectively improved.
Fig. 3 is a perspective view of a second embodiment of an antenna assembly. As shown in fig. 3, while referring to fig. 1, the second embodiment differs from the first embodiment in that an opening 35 is provided in the conductive shielding wall 30. In the drawings, the conductive shielding wall 30 may be a mesh structure having a plurality of openings 35, however, this is merely an example and is not intended to be limiting. In fact, the conductive shielding wall 30 may be perforated, slotted or porous conductive foam or conductive cloth. Thus, when the antenna has the metal shielding effect, the functions of the first antenna 10 and the second antenna 20 can be increased through the holes. Meanwhile, the ventilation and heat dissipation effects of the whole element can be improved. Further, an opening 45 may also be provided in the connecting portion 40.
Fig. 4 is a perspective view of a third embodiment of an antenna assembly. Fig. 5 is a side view of a third embodiment of an antenna assembly. As shown in fig. 4 and 5, and referring to fig. 1 and 2, the difference between the third embodiment and the first embodiment is that the connection portion 40 and the grounding strip 100 are not directly connected, but electrically connected through capacitive coupling. In more detail, the connection portion 40 is located above the ground strip 100, a third gap G3 is formed between the connection portion 40 and the ground strip 100, and a width d3 of the third gap G3 is smaller than 1/100 of the wavelength corresponding to the highest operating frequency.
Further, as shown in fig. 4 and 5, the second gap G2 between the conductive shielding wall 30 and the ground plate 100 and/or the third gap G3 between the connecting portion 40 and the ground plate 100 may be filled with the dielectric material 50. The capacitance is enhanced by the dielectric properties of the dielectric material 50, thereby enhancing the capacitive coupling effect.
Fig. 6 is a perspective view of a fourth embodiment of an antenna assembly. As shown in fig. 6, referring to fig. 1, the fourth embodiment has a plurality of connecting portions 40A, 40B, and 40C between the conductive shielding wall 30 and the grounding plate 100, wherein the first connecting portion 40A is adjacent to the first antenna 10, the second connecting portion 40B is adjacent to the second antenna 20, and the third connecting portion 40C is located between the first antenna 10 and the second antenna 20. However, this is merely an example and not limited thereto, and actually, more connection portions may be provided, and the first connection portion 40A, the second connection portion 40B, and the third connection portion 40C may be all provided between the first antenna 10 and the second antenna 20.
Fig. 7 is a perspective view of a fifth embodiment of an antenna assembly. As shown in fig. 7, referring to fig. 1, in the fifth embodiment, the conductive shielding wall 30 further includes an extension 37. The extension portion 37 extends from the upper edge of the conductive shield wall 30. The length of extension 37 is less than or equal to 1/4 of the wavelength corresponding to the highest operating frequency. Generally, the height H of the conductive shielding wall 30 with the extension portion 37 is higher than the height H of the first antenna 10 or the second antenna 20, and the extension portion 37 can achieve the shielding function for the first antenna 10 or the second antenna 20, so as to reduce the interference of external signals and improve the isolation between the first antenna 10 and the second antenna 20. In fig. 7, the extension portion 37 extends toward the first antenna 10 or the second antenna 20, but actually, extends toward the opposite direction of the first antenna 10 or the second antenna 20, which also has the effect of improving the isolation.
Fig. 8 is a perspective view of a sixth embodiment of an antenna structure assembly. As shown in fig. 8, the antenna structure assembly 1 of the sixth embodiment differs from the previous embodiments in the design of the conductive shielding walls 30 and the connecting portions 40, and the sixth embodiment includes a first conductive shielding wall 30A, a second conductive shielding wall 30B, a first connecting portion 40A and a second connecting portion 40B. The first conductive shielding wall 30A is located at one side of the first antenna 10 and partially overlaps the first antenna 10 on the projection plane. The second conductive shielding wall 30B partially overlaps the second antenna 20 on the projection plane. The first connection portion 40A connects the ground plate 100 and the first conductive shielding wall 30A, the second connection portion 40B connects the ground plate 100 and the second conductive shielding wall 30B, and the first connection portion 40A and the second connection portion 40B are located between the first antenna 10 and the second antenna 20.
In more detail, the first conductive shielding wall 30A and the second conductive shielding wall 30B have a fourth gap G4 therebetween, a width d4 of the fourth gap G4 is smaller than a width d1 of the first gap G1, and generally, a width d4 of the fourth gap G4 is in a range from 1/40 to 1/6, preferably 1/20 to 1/10, of the wavelength corresponding to the highest operating frequency.
Fig. 9 is a perspective view of a seventh embodiment of an antenna assembly. Fig. 10 is a perspective view of an eighth embodiment of an antenna assembly. As shown in fig. 9 and 10, referring to fig. 1, the seventh embodiment and the eighth embodiment, the first antenna 10 and the second antenna 20 are respectively disposed on the first edge 100A and the second edge 100B of the grounding plate 100, the first edge 100A and the second edge 100B are substantially perpendicular to each other, and in this case, the necessary deviation is substantially allowed, for example, the first edge 100A and the second edge 100B may be within a range of plus/minus 15 degrees from the perpendicular range. The conductive shielding wall 30 is L-shaped, and the two bent portions are respectively adjacent to the first antenna 10 and the second antenna 20. However, this is merely an example, and not limited thereto, and the conductive shielding wall 30 may be bent at an acute angle or an obtuse angle, as long as it is satisfied that the conductive shielding wall 30, the first antenna 10, and the second antenna 20 at least partially overlap on the projection plane. In addition, the connecting portion 40 may be disposed on the first edge 100A as shown in fig. 9, or may be disposed on the second edge 100B as shown in fig. 10. It should be noted that the connecting portion 40 must be disposed between the first antenna 10 and the second antenna 20. However, this is merely an example and not intended to be limiting. Actually, a plurality of connection portions 40 may be provided as shown in fig. 6.
Fig. 11 is a perspective view of a ninth embodiment of an antenna assembly. Fig. 12 is a perspective view of a tenth embodiment of an antenna assembly. As shown in fig. 11 and 12, referring to fig. 8, 9, ninth embodiment and tenth embodiment simultaneously, like the first conductive shielding wall 30A, the second conductive shielding wall 30B, the first connecting portion 40A and the second connecting portion 40B of the embodiment of fig. 8, like the embodiment of fig. 9, the first antenna 10 and the second antenna 20 are respectively disposed on the first edge 100A and the second edge 100B of the ground patch 100, the first connecting portion 40A connects the ground patch 100 and the first conductive shielding wall 30A, the second connecting portion 40B connects the ground patch 100 and the second conductive shielding wall 30B, and the first connecting portion 40A and the second connecting portion 40B are located between the first antenna 10 and the second antenna 20.
As shown in fig. 12, in the tenth embodiment, the first conductive shielding wall 30A and the second conductive shielding wall 30B further include an extension portion 37. The extending portions 37 extend from the upper edges of the first conductive shielding wall 30A and the second conductive shielding wall 30B toward the first antenna 10 and the second antenna 20, respectively, so as to shield the tops of the first antenna 10 and the second antenna 20. It is understood that one or more conductive shielding walls 30 may be provided, and in order to connect the conductive shielding walls 30 corresponding to the first and second antennas 10 and 20 to the ground patch 100, a connection portion 40 must be provided to improve the isolation between the first and second antennas 10 and 20. In addition, the total length of the conductive shielding wall 30 should be greater than 1/2 of the total length of the first antenna 10 and the second antenna 20. The connection portion 40 may also be provided with one or more, but at least one must be provided between the first antenna 10 and the second antenna 20. Similarly, in fig. 11 and 12, although the extending directions of the first conductive shielding wall 30A and the second conductive shielding wall 30B are substantially orthogonal, this is only an example and not a limitation, and the extending directions of the first conductive shielding wall 30A and the second conductive shielding wall 30B may also include an acute angle or an obtuse angle, which is only required to satisfy that the first antenna 10 and the first conductive shielding wall 30A partially overlap on the projection plane, and the second antenna 20 and the second conductive shielding wall 30B at least partially overlap on another projection plane.
Fig. 13 is a perspective view of an eleventh embodiment of an antenna assembly. As shown in fig. 13, the conductive shielding wall 30 of the antenna structural assembly 1 of the eleventh embodiment is located above the grounding plate 100, and the conductive shielding wall 30 is connected to the grounding plate 100 through the connecting portion 40. In other words, the conductive shielding wall 30 may be disposed outside the first antenna 10 and the second antenna 20, or disposed inside the first antenna 10 and the second antenna 20. Thus, the conductive shielding wall 30 is more optional in the design of the whole electronic device.
Fig. 14 is a wave frequency chart of the comparative example. Fig. 15 is a wave frequency diagram of the antenna structure assembly. As shown in fig. 14, fig. 14 is a graph of frequency spectrums measured by the first antenna 10 and the second antenna 20 without the conductive shielding wall 30 and the connecting portion 40. The lower curve in fig. 14 shows the signal response of the first antenna 10 and the second antenna 20, respectively, and the upper curve shows the signal strength received at the second antenna 20 on the first antenna 10.
Fig. 15 is a spectrogram measured in the embodiment of fig. 1, and the width d1 of the first gap G1 is designed to be 5 mm. Referring to fig. 14, the lower curve does not change significantly, and the conductive shielding wall 30 and the connecting portion 40 are added, which shows that the impedance and the frequency response of the first antenna 10 and the second antenna 20 have no significant influence. However, the curve above moves downward, which means that the signal strength received by the second antenna 20 on the first antenna 10 is greatly reduced, i.e. the isolation between the first antenna 10 and the second antenna 20 is greatly increased.
In the prior art, it is generally considered that the metal shield reduces electromagnetic radiation and increases an electrostatic discharge (esd) venting path, which results in a reduction of antenna function, seriously affects user experience in wireless communication applications, and is more serious when the distance between the metal shield and the antenna is closer. Therefore, the antenna is not designed to be adjacent to the housing or the metal wall. However, the present application overcomes the prior art prejudice by the conductive shielding wall 30, the connecting portion 40 and the second gap G2 between the conductive shielding wall 30 and the grounding plate 100.
As described above, in the above embodiment, the second gap G2 is formed between the conductive shielding wall 30 and the ground strip 100, and the conductive shielding wall 30 and the ground strip 100 are connected by the connection portion 40 located between the first antenna 10 and the second antenna 20, so that even when the width d1 of the first gap G1 between the first antenna 10 and the second antenna 20 is smaller than 10mm, the characteristics of the antennas can be maintained, and the isolation between the first antenna 10 and the second antenna 20 is further improved, so that the antenna structure assembly 1 is suitable for various electronic communication devices.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (12)

1. An antenna structure assembly, comprising:
a first antenna disposed on a ground plate;
a second antenna disposed on the ground plate and adjacent to the first antenna, wherein a width of a first gap between the first antenna and the second antenna is 1/40-1/2 of a wavelength corresponding to a highest operating frequency;
at least one conductive shielding wall adjacent to the ground plate, wherein a second gap is formed between each conductive shielding wall and the ground plate, the width of the second gap is in a range from 1/40 to 1/2 of the wavelength corresponding to the highest operating frequency, and the projection of each conductive shielding wall and the first antenna and/or the second antenna at least partially overlaps on a projection plane, the height of each conductive shielding wall is greater than or equal to 1/2 of the height of the first antenna or the second antenna, and the total length of the at least one conductive shielding wall is greater than or equal to 1/2 of the total length of the first antenna and the second antenna; and
at least one connecting part electrically connected with the at least one conductive shielding wall and the grounding plate, wherein at least one of the at least one connecting part is positioned between the first antenna and the second antenna.
2. The antenna structure assembly of claim 1, wherein at least one of the at least one conductive shielding wall has an opening.
3. The antenna structure assembly according to claim 1, wherein the at least one connection portion is directly connected to the ground patch.
4. The antenna structure assembly according to claim 1, wherein the at least one connection portion is electrically connected to the ground patch by capacitive coupling without direct connection therebetween.
5. The antenna structure assembly according to claim 4, wherein a third gap is formed between the at least one connection portion and the ground patch, and the width of the third gap is smaller than 1/100 of the wavelength corresponding to the highest operating frequency.
6. The antenna structure assembly according to claim 1, wherein the at least one conductive shielding wall includes a first conductive shielding wall and a second conductive shielding wall, the at least one connection portion includes a first connection portion and a second connection portion, the first conductive shielding wall partially overlaps the first antenna on the projection plane, the second conductive shielding wall partially overlaps the second antenna on the projection plane, the first connection portion connects the ground patch and the first conductive shielding wall, the second connection portion connects the ground patch and the second conductive shielding wall, and the first connection portion and the second connection portion are located between the first antenna and the second antenna.
7. The antenna structure assembly according to claim 6, wherein the first antenna and the second antenna are respectively disposed on a first edge and a second edge of the ground plate, the first edge and the second edge are orthogonal, and a length extending direction of the first conductive shielding wall and the second conductive shielding wall is orthogonal.
8. The antenna structure assembly of claim 6 or claim 7, wherein the first and second electrically-conductive shielding walls have a fourth gap therebetween, the fourth gap having a width in a range of 1/40-1/6 of the wavelength corresponding to the highest operating frequency.
9. The antenna structure assembly of claim 1 or claim 7, wherein at least one of the at least one conductive shielding wall includes an extension portion extending from an upper edge of the conductive shielding wall, the extension portion having a length less than or equal to 1/4 of the wavelength corresponding to the highest operating frequency.
10. The antenna structure assembly according to claim 1, wherein at least one of the at least one conductive shielding wall is located above the ground plate, and the at least one conductive shielding wall is connected to the ground plate through the at least one connection portion.
11. The antenna structure assembly according to claim 1, wherein the second gap is filled with a dielectric material.
12. The antenna structure assembly of claim 1, wherein the highest operating frequency corresponds to a wavelength of 1 to 15 mm.
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