Multi-output multi-input antenna high isolation structure and wireless communication equipment

Abstract

The utility model discloses a multi-output multi-input antenna high isolation structure and a wireless communication device, and relates to the technical field of communication antennae, the multi-output multi-input antenna high isolation structure comprises a housing, antennas and a metal isolation member, the antennas comprise a first antenna and a second antenna, the first antenna and the second antenna are oppositely arranged, and the metal isolation member is arranged in the housing. The two side plates are arranged on the two sides of the shell respectively; the metal isolation piece is arranged on the shell and located between the first antenna and the second antenna. According to the technical scheme of the utility model, the metal separator is arranged between the first antenna and the second antenna, and an electromagnetic barrier is formed between the two antennas through the metal property of the separator, so that electromagnetic signals between the two antennas are effectively blocked in a limited space, and mutual interference between the antennas is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of communication antennas, in particular to a multi-output multi-input antenna high isolation structure and wireless communication equipment. Background Art

[0002] Antennas are essential components of wireless communication systems, receiving electromagnetic waves within the operating frequency band and converting electrical signals into electromagnetic waves for outward radiation. With the continuous evolution and advancement of communication technology, multiple-input, multiple-output (MIMO) antennas (MIMO antennas) are often used to improve the efficiency and reliability of signal transmission. MIMO antennas use multiple transmit and receive antennas in wireless communications. Through co-channel multiplexing, where each pair of antennas operates at the same frequency, signals are transmitted in parallel, thereby improving data transmission rates and reliability. To prevent signal interference, antennas are often placed farther apart to reduce coupling between them, thereby increasing isolation between them.

[0003] However, in the existing technology, products in the communication field pursue miniaturization and lightweight, and there is not enough space to place long-distance MIMO antennas. As a result, multiple antennas will interfere with each other's normal operation when sending and receiving signals normally, generating unnecessary signal interference and reducing the accuracy of communication. Utility Model Content

[0004] The main purpose of the utility model is to provide a multi-output multi-input antenna high isolation structure and wireless communication equipment, aiming to solve the technical problem of serious signal interference between multi-output multi-input antenna systems.

[0005] To achieve the above objectives, the present invention proposes a multi-output multi-input antenna high isolation structure, which includes:

[0006] case;

[0007] Antenna, the antenna comprising a first antenna and a second antenna, the first antenna and the second antenna being arranged opposite to each other and respectively disposed on two sides of the housing;

[0008] A metal spacer is provided on the housing and located between the first antenna and the second antenna.

[0009] In one embodiment, the first antenna has a first surface facing the metal isolator, the second antenna has a second surface facing the metal isolator, and both ends of the metal isolator (3) are respectively covered on the first surface and the second surface.

[0010] In an embodiment, the metal isolation piece comprises a first metal isolation piece and a second metal isolation piece, the first metal isolation piece and the second metal isolation piece are oppositely arranged, the first metal isolation piece covers the outside of the first antenna, and the second metal isolation piece covers the outside of the second antenna.

[0011] In an embodiment, the metal isolation piece further comprises a connecting section, the connecting section connects the first metal isolation piece and the second metal isolation piece respectively.

[0012] In an embodiment, the first metal isolation piece has a first section and a second section, the first section is connected with the second section, the second section covers the first antenna, and the first section and the second section are connected with the shell respectively.

[0013] The second metal isolation piece has a third section and a fourth section, the third section is connected with the fourth section, the fourth section covers the second antenna, and the third section and the fourth section are connected with the shell respectively.

[0014] In an embodiment, the first section and the second section are integrally formed, and the third section and the fourth section are integrally formed.

[0015] In an embodiment, the side end surface of the metal isolation piece facing the shell forms an included angle with the side wall surface of the shell facing the metal isolation piece, and the included angle is 17.8 degrees.

[0016] In an embodiment, the first antenna is provided with a first feeding point and a first feeding site close to one side of the metal isolation piece, and the first antenna is communicatively connected with the first feeding point and the first feeding site respectively.

[0017] The second antenna is provided with a second feeding point and a second feeding site close to one side of the metal isolation piece, and the second antenna is communicatively connected with the second feeding point and the second feeding site respectively.

[0018] The utility model also proposes a wireless communication equipment, the wireless communication equipment includes the multiple output multiple input antenna high isolation three -dimensional structure as above-mentioned.

[0019] The technical scheme of the utility model sets the metal isolation piece between the first antenna and the second antenna, forms an electromagnetic barrier between the two antennas through the metallic property of the isolation piece, effectively blocks the electromagnetic signals between the two antennas in the limited space, and reduces the mutual interference between the antennas. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0021] Figure 1 This is a schematic diagram of the structure of a multi-output multi-input antenna with high isolation provided by the utility model;

[0022] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0023] Figure 3 for Figure 1 A partial enlarged view of point B in the middle;

[0024] Figure 4 This is the S12 diagram of the first antenna and the second antenna provided by the present invention.

[0025] Description of Figure Numbers:

[0026] 100. Multi-output multi-input antenna high isolation structure; 1. Shell; 2. Antenna; 21. First antenna; 22. Second antenna; 23. First feeding point; 24. First feeding point; 25. Second feeding point; 26. Second feeding point; 3. Metal isolator; 31. First metal isolator; 31a. First section; 31b. Second section; 32. Second metal isolator; 32a. Third section; 32b. Fourth section.

[0027] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0029] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0030] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0031] The utility model provides a kind of multiple output multiple input antenna high isolation structure 100.

[0032] Please refer to Figures 1 to 4 In an embodiment of the present application, the multiple output multiple input antenna high isolation structure includes a housing 1, an antenna and a metal isolation piece. The antenna includes a first antenna 21 and a second antenna 22. The first antenna 21 and the second antenna 22 are oppositely arranged and respectively arranged on two sides of the housing 1. The metal isolation piece is arranged in the housing 1 and located between the first antenna 21 and the second antenna 22.

[0033] In the present embodiment, the multiple output multiple input antenna isolation structure is particularly applied in the frequency band of 600MHz-7.4GHz. The housing 1 is used to carry the entire structure. One of the first antenna 21 and the second antenna 22 is used to receive signals, and the other is used to transmit signals. The metal isolation piece is used to isolate the signals of the two antennas and reduce mutual interference. Correspondingly, the housing 1 is provided with a cavity. The first antenna 21 and the second antenna 22 are placed in the cavity and respectively arranged on two sides of the cavity. The metal isolation piece is placed between the two antennas. Further, the metal isolation piece is a isolation plate made of metal material, such as copper, aluminum and other high-conductivity metal materials. The use of the above metal materials further improves the electromagnetic shielding effect. The antenna is connected to the housing 1 by welding or bonding. The metal isolation piece is connected to the housing 1 by welding, screwing, riveting and the like. When assembling the metal isolation piece, the metal isolation piece is first fixed between the first antenna 21 and the second antenna 22, and the first antenna 21 and the second antenna 22 are respectively installed at the predetermined position of the housing 1, to ensure that the distance between the two antennas can accommodate the metal isolation piece. The angle and position of the antenna are adjusted to make the signal direction and coverage range optimal. The isolation degree of the antenna is tested using a network analyzer to ensure the shielding effect of the metal isolation piece.

[0034] The technical solution of the present invention is to set a metal isolation piece between the first antenna 21 and the second antenna 22. Through the metal properties of the isolation piece, an electromagnetic barrier is formed between the two antennas, which effectively blocks the electromagnetic signals between the two antennas in a limited space and reduces mutual interference between the antennas.

[0035] In one embodiment of the present invention, the first antenna 21 has a first surface facing the metal spacer 3 , the second antenna 22 has a second surface facing the metal spacer 3 , and both ends of the metal spacer 3 are respectively covered on the first surface and the second surface.

[0036] In this embodiment, the three-dimensional structure is set to provide sufficient physical space and electromagnetic isolation, which helps to reduce the electromagnetic interference between the first antenna 21 and the second antenna 22. The first surface is the surface of the first antenna facing the metal isolator, and the second surface is the surface of the second antenna facing the metal isolator. The metal isolator is respectively covered on the first surface and the second surface, which can change the field pattern of the first antenna 21 and the second antenna 22 respectively, reflect the interference signal transmitted by the first antenna 21 to the second antenna 22, reduce the interference of the first antenna 21 to the second antenna 22, and at the same time shield the unnecessary information transmitted by the second antenna 22, thereby improving the isolation between the first antenna 21 and the second antenna 22. The effect of the second antenna 22 on the first antenna 21 is the same as described above. Furthermore, as long as the interference between the two antennas can be reduced, the metal isolator can be set in different forms, as described in the following embodiments.

[0037] In one embodiment of the present invention, the metal isolator includes a first metal isolator 31 and a second metal isolator 32. The first metal isolator 31 and the second metal isolator 32 are arranged opposite to each other. The first metal isolator 31 covers the outer side of the first antenna 21, and the second metal isolator 32 covers the outer side of the second antenna 22.

[0038] In this embodiment, the metal spacers are configured as two separate metal spacers, with a first metal spacer 31 and a second metal spacer 32 respectively disposed on either side of the housing 1. The first metal spacer 31 is disposed at an angle to cover the outer side of the first antenna 21, and similarly, the second metal spacer 32 is disposed at an angle to cover the outer side of the first antenna 21. This configuration provides electromagnetic shielding, reduces mutual interference between the two antennas, and improves signal isolation.

[0039] In an embodiment of the present invention, the metal isolation member further includes a connecting section, and the connecting section connects the first metal isolation member 31 and the second metal isolation member 32 respectively.

[0040] In this embodiment, the metal spacers are configured as two connected metal spacers, which enhances the integrity of the structure and provides additional support. Accordingly, the connecting section is the portion where the first metal spacer 31 and the second metal spacer 32 are connected. The three-dimensional isolation provided by the first and second metal spacers 31, 32, along with the assistance of the connecting section, significantly improves the signal isolation between the first antenna 21 and the second antenna 22, effectively isolating and reducing mutual interference between the antennas, thereby enhancing the performance of the entire communication system.

[0041] In one embodiment of the present invention, the first metal isolation member 31 has a first section 31a and a second section 31b, the first section 31a is connected to the second section 31b, the second section 31b covers the first antenna 21, and the first section 31a and the second section 31b are respectively connected to the shell 1; the second metal isolation member 32 has a third section 32a and a fourth section 32b, the third section 32a is connected to the fourth section 32b, the fourth section 32b covers the second antenna 22, and the third section 32a and the fourth section 32b are respectively connected to the shell 1.

[0042] Combine Figure 1 In this embodiment, the first metal isolator 31 and the second metal isolator 32 are arranged in the form of segments. The first segment 31a is the inclined segment of the first metal isolator 31, the second segment 31b is the straight segment of the first metal isolator 31, the third segment 32a is the inclined segment of the second metal isolator 32, and the fourth segment 32b is the straight segment of the second metal isolator 32. Furthermore, the first segment 31a is placed obliquely on the side wall of the shell 1 and the first antenna 21, and the second segment 31b is arranged at an angle to the first segment 31a and connected to the end of the first segment 31a facing the first antenna 21. The third segment 32a and the fourth segment 32b are the same as described above. The above-mentioned arrangement not only ensures a stable connection between the metal isolator and the shell 1, but also provides effective electromagnetic isolation, which can block or reduce direct electromagnetic interference between antennas and improve signal purity and communication quality.

[0043] In one embodiment of the present invention, an end surface of the metal spacer facing the housing 1 forms an angle with a wall surface of the housing 1 facing the metal spacer, and the angle is 17.8 degrees.

[0044] Combine Figure 2 and Figure 3In the embodiment, in order to achieve the best isolation effect to ensure the minimization of signal interference, taking the first antenna 21 and the first metal isolation piece 31 as an example, the first section 31a of the first metal isolation piece 31 is arranged close to the side wall of the shell 1, the first section 31a is arranged obliquely between the side wall and the bottom wall of the shell 1, the height of the end of the first section 31a close to the side wall of the first metal isolation piece 31 projected to the bottom wall of the shell 1 is 14.10 mm, the width of the second section 31b covering the first antenna 21 is 19.20 mm, and the oblique angle between the first section 31a and the side wall is 17.8 degrees. The second antenna 22 and the second metal isolation piece 32 are arranged as described above. At this time, the combination of the above-mentioned structures can maximize the use of the limited space of the shell 1, and provide the best shielding effect between the two antennas. Figure 4 The above-mentioned dimensions can provide the best shielding effect without increasing the size of the device. Further, through data testing, taking the first antenna 21 and the first metal isolation piece 31 as an example, the values within the error range of plus or minus 30% can achieve the effect of minimizing signal interference. Through the angle setting, the limited space of the shell 1 can be maximized to provide the best shielding effect between the two antennas.

[0045] In an embodiment of the utility model, the first section 31a and the second section 31b are integrally formed, and the third section 32a and the fourth section 32b are integrally formed.

[0046] In the embodiment, the process of integral forming makes the first section 31a and the second section 31b have higher structural strength, reduces the need for cutting and trimming, and reduces material waste.

[0047] In an embodiment of the utility model, the side of the first antenna 21 close to the metal isolation piece is provided with a first feeding point 23 and a first feeding point 24; the side of the second antenna 22 close to the metal isolation piece is provided with a second feeding point 25 and a second feeding point 26.

[0048] In the embodiment, the feeding point is a place in the antenna that supplies power to the antenna through a transmission line, which provides energy for the outwardly radiating electromagnetic waves, and the feeding point provides a ground plane to form a complete current loop. By arranging the feeding point and the feeding point on the antenna structure, the transmission path of the signal can be optimized, and the signal strength can be enhanced; at the same time, the space can be used more effectively.

[0049] The utility model also provides a wireless communication device, the wireless communication device includes the multi-output multi-input antenna high isolation structure of any one of the above, the specific structure of the multi-output multi-input antenna high isolation structure refers to the above-embodiment, because the subject two adopts all the technical schemes of the above-mentioned embodiments, therefore at least has all the beneficial effects brought by the technical scheme of the above-mentioned embodiment, here will not repeat again. Among them, the above-mentioned setting mode improves the signal isolation degree, enhances the signal strength, and is helpful to more uniform signal coverage.

[0050] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A multi-output multi-input antenna high isolation structure, characterized in that: The multi-output multi-input antenna high isolation structure includes: case; Antenna, the antenna comprising a first antenna and a second antenna, the first antenna and the second antenna being arranged opposite to each other and respectively disposed on two sides of the housing; A metal spacer is provided on the housing and located between the first antenna and the second antenna.

2. The multi-output multi-input antenna high isolation structure according to claim 1, characterized in that: The first antenna has a first surface facing the metal isolator, the second antenna has a second surface facing the metal isolator, and two ends of the metal isolator are respectively covered on the first surface and the second surface.

3. The multi-output multi-input antenna high isolation structure according to claim 2, wherein: The metal isolator includes a first metal isolator and a second metal isolator. The first metal isolator and the second metal isolator are arranged opposite to each other. The first metal isolator covers the outer side of the first antenna, and the second metal isolator covers the outer side of the second antenna.

4. The multi-output multi-input antenna high isolation structure according to claim 3, characterized in that: The metal isolation member further includes a connecting section, and the connecting section connects the first metal isolation member and the second metal isolation member respectively.

5. The multi-output multi-input antenna high isolation structure according to claim 3, characterized in that: The first metal isolation member has a first section and a second section, the first section is connected to the second section, the second section covers the first antenna, and the first section and the second section are respectively connected to the housing; The second metal isolation member has a third section and a fourth section, the third section is connected to the fourth section, the fourth section covers the second antenna, and the third section and the fourth section are respectively connected to the housing.

6. The multi-output multi-input antenna high isolation structure according to claim 5, characterized in that: The first section and the second section are integrally formed, and the third section and the fourth section are integrally formed.

7. The multi-output multi-input antenna high isolation structure according to claim 2, wherein: An angle is formed between an end surface of the metal spacer facing the shell and a wall surface of the shell facing the metal spacer, and the angle is 17.8 degrees.

8. The multi-output multi-input antenna high isolation structure according to claim 1, wherein: A first feeding point and a first feeding location are provided on a side of the first antenna close to the metal isolation member; A second feeding point and a second feeding location are provided on a side of the second antenna close to the metal isolation piece.

9. A wireless communication device, characterized in that: The wireless communication device comprises the multi-output multi-input antenna high isolation three-dimensional structure according to any one of claims 1 to 8.

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