Cables and communication systems

Abstract

The embodiment of the present application provides a cable, which comprises: a first part and a second part, the first part comprises: a cable core (111), a metal layer (112) and a medium layer (113), the metal layer (112) is wrapped on the cable core (111), and the medium layer (113) is located between the cable core (111) and the metal layer (112); the second part comprises: a plurality of metal units (121) and a medium unit (122), the plurality of metal units (121) are arranged on the metal layer (112) at intervals, and the medium unit (122) is located between the plurality of metal units (121) and the metal layer (112). The plurality of metal units are arranged on the metal layer of the cable at intervals, so that the shielding degree of the cable to the electromagnetic waves of a certain frequency band is reduced. The cable is placed on the radiation path of an antenna, and the shielding degree of the electromagnetic waves radiated by the antenna can be reduced, so that the antenna pattern distortion is avoided.

Description

Technical Field

[0001] This application relates to the field of communications, and more specifically, to a cable and a communication system. Background Technology

[0002] In scenarios where array antennas are integrated for wireless communication, the coaxial cable used in the array antenna may block the antenna's radiation, causing a deterioration in the antenna's radiation pattern and affecting communication quality. Therefore, how to design the cable to reduce the cable's obstruction of electromagnetic waves and improve the antenna's radiation pattern performance has become an urgent problem to be solved. Summary of the Invention

[0003] This application provides a cable and a communication system. By spaced multiple metal units on the metal layer of the cable, it is possible to achieve bandpass for electromagnetic waves within a certain frequency band, thereby reducing the degree of cable obstruction of electromagnetic waves in that frequency band. Furthermore, when a cable with this structure is placed in the radiation path of an antenna, it can reduce the degree of obstruction of electromagnetic waves radiated by the antenna, thus avoiding antenna pattern distortion.

[0004] In a first aspect, a cable is provided, comprising: a first part (110) and a second part (120), the first part (110) comprising: a cable core (111), a metal layer (112) and a dielectric layer (113), wherein the metal layer (112) is wrapped around the cable core (111) and the dielectric layer (113) is located between the cable core (111) and the metal layer (112); the second part (120) comprises: a plurality of metal units (121) and dielectric units (122), wherein the plurality of metal units (121) are spaced apart on the metal layer (112) and the dielectric units (122) are located between the plurality of metal units (121) and the metal layer (112).

[0005] Based on the above technical solution, the cable provided in this application can achieve electromagnetic wave pass-through within a certain frequency band by arranging multiple metal units (121) at intervals on the metal layer (112) of the cable, so as to reduce the degree of shielding of electromagnetic waves within a certain frequency band by the cable.

[0006] In addition, the cable with this structure can be placed in the radiation path of the antenna, for example, the cable can be placed directly above the antenna; or, for example, the cable can be placed to the side of the antenna; or, for example, the cable can be placed directly below the antenna.

[0007] It should be noted that this application does not strictly limit the positional relationship between the cable and the antenna, as long as the cable (whole or part) is located on the antenna's radiation path. The antenna's radiation path refers to the direction of radiation of the antenna's electromagnetic wave signal.

[0008] As one possible implementation, multiple metal units (121) are spaced apart on the metal layer (112). In this implementation, multiple metal units (121) can be considered as being attached one by one to the metal layer (112).

[0009] For example, the first part (110) is a regular cable without bandpass function, while the second part (120) is a plurality of unit structures attached to the outer metal layer (112) of the regular cable. Each unit structure includes a metal unit (121) and a dielectric unit (122) located between the metal unit (121) and the metal layer (112).

[0010] As another possible implementation, the multiple metal units (121) are spaced apart on the metal layer (112). This can be achieved by first setting an additional metal layer on the metal layer (112) (e.g., the additional metal layer wraps around the metal layer (112), and an additional dielectric layer is set between the additional metal layer and the metal layer (112), and slots are made in the metal layer at intervals to form the multiple metal units (121) mentioned above. In this implementation, the multiple metal units (121) can be considered as being achieved by slotting the additional metal layer on the metal layer (112).

[0011] For example, an additional dielectric layer and an additional metal layer are sequentially disposed on the outer metal layer (112) of a regular cable that does not have a bandpass function to form a thickened regular cable. Then, multiple slots are spaced apart on the thickened regular cable, and the part between two adjacent slots is a unit structure. Each unit structure includes a metal unit (121) and a dielectric unit (122).

[0012] It should be noted that the method of preparing the cable described above is not limited in this application, and the cable with the structure described above, including the first part (110) and the second part (120), is acceptable.

[0013] In one possible implementation, the number of dielectric units (122) is equal to the number of metal units (121), and one dielectric unit (122) is located between one metal unit (121) and the metal layer (112). One dielectric unit (122) and one metal unit (121) can be regarded as a unit structure.

[0014] Based on the above technical solution, the number of dielectric units (122) and metal units (121) is equal, so that a dielectric unit (122) and a metal unit (121) can be combined into a unit structure, so that the unit structure can be used as the production unit for production, avoiding the provision of dielectric units (122) on the entire metal layer (112), thus reducing production costs; in addition, no dielectric units (122) are provided at the intervals between metal units (121), which is beneficial for cable bending; and avoids the provision of dielectric units (122) on the entire metal layer (112), thus reducing costs.

[0015] For example, a metal unit (121) can be a metal sleeve with a medium unit (122) disposed on its inner wall, and multiple metal sleeves with medium units (122) disposed on their inner walls are spaced together on the first part (110).

[0016] For example, a metal unit (121) can be a metal sleeve, and multiple metal sleeves are spaced together on the first part (110). The gaps between the multiple metal sleeves and the metal layer (112) and the air in the gaps can form multiple dielectric units (122).

[0017] Wherein, “sleeve connection” can be understood as the first part (110) passing through the hollow portion of multiple metal sleeves or multiple metal sleeves provided with medium units (122), and a portion of the first part (110) is located in the hollow portion.

[0018] In one possible implementation, the number of the medium unit (122) is one, the medium unit (122) is wrapped on the metal layer (112), and is disposed between the plurality of metal units (121) and the metal layer (112).

[0019] Based on the above technical solution, the above-mentioned dielectric unit (122) can be an additional dielectric layer wrapped on the metal layer (112), which can simplify the processing technology.

[0020] For example, a dielectric unit (122) is provided on the metal layer (112). The dielectric unit (122) can be regarded as a whole, and there is no need to set the dielectric unit (122) under the premise of considering the number of metal units (121).

[0021] It should be noted that, in order for the metal unit (121) to be stably disposed on the metal layer (112), the aforementioned dielectric unit (122) can be made of a dielectric material, rather than being formed naturally by an air gap. The dielectric material used to make the dielectric unit (122) can be Teflon material, or other insulating materials, such as plastics, ceramics, glass, etc.

[0022] In one possible implementation, one of the plurality of metal units (121) is disposed on the annular first region of the metal layer (112), and the metal unit (121) covers all or part of the annular first region. In another possible implementation, the shape of the metal unit (121) includes a ring or a spiral.

[0023] Based on the above technical solution, a certain metal unit (121) can be set on a certain annular area of ​​the metal layer (112), but the metal unit (121) does not need to be completely wrapped outside the annular area. The specific form of the metal unit (121) is not limited, which can improve the flexibility of the solution.

[0024] As one possible implementation, one of the plurality of metal units (121) is disposed on the annular first region of the metal layer (112), and the metal unit (121) completely covers the annular first region.

[0025] For example, the metal unit (121) is annular, and the annular metal unit (121) is fitted on the metal layer (112) to completely cover the area where the metal unit (121) is located.

[0026] For example, the metal unit (121) is a metal ring with a length greater than or equal to 10 mm and less than or equal to 40 mm, and a thickness greater than or equal to 5 mm and less than or equal to 30 mm; the interval between two adjacent metal rings is greater than or equal to 5 mm and less than or equal to 15 mm.

[0027] It should be noted that the size of the metal rings and the spacing between adjacent metal rings can be designed according to the operating frequency band of the cable.

[0028] For example, the metal unit (121) is a polygonal ring (e.g., a regular hollow polygon), and the polygonal ring metal unit (121) is fitted on the metal layer (112) to completely cover the area where the metal unit (121) is located.

[0029] For example, the metal unit (121) is a metal polygonal ring, the length (or height, width) of the metal polygonal ring is greater than or equal to 10 mm and less than or equal to 40 mm, the thickness is greater than or equal to 5 mm and less than or equal to 30 mm; the interval between two adjacent metal polygonal rings is greater than or equal to 5 mm and less than or equal to 15 mm.

[0030] It should be noted that the size of the metal polygonal ring and the spacing between adjacent metal polygonal rings can be designed according to the operating frequency band of the cable.

[0031] For example, the metal unit (121) is an irregular ring (e.g., an irregular hollow body). The irregular ring metal unit (121) is fitted on the metal layer (112) and can completely cover the area where the metal unit (121) is located.

[0032] As another possible implementation, one of the plurality of metal units (121) is disposed on the annular first region of the metal layer (112), and the metal unit (121) partially covers the annular first region.

[0033] For example, the metal unit (121) is spiral-shaped and is fitted onto the metal layer (112), which can partially cover the area where the metal unit (121) is located.

[0034] For example, the metal unit (121) is a spiral metal ring with a length (or height, width) greater than or equal to 10 mm and less than or equal to 40 mm, a thickness greater than or equal to 5 mm and less than or equal to 30 mm, and a spacing between two adjacent spiral metal rings greater than or equal to 5 mm and less than or equal to 15 mm.

[0035] It should be noted that the size of the spiral metal rings and the spacing between adjacent spiral metal rings can be designed according to the operating frequency band of the cable.

[0036] For example, the metal unit (121) is a semi-circular ring.

[0037] For example, the metal unit (121) is a ring with a hollowed-out area.

[0038] For example, the metal unit (121) is partially annular and partially spiral.

[0039] For example, the metal unit (121) may be made of copper, or of a metal alloy, or of other metal materials such as aluminum, silver, etc.

[0040] In one possible implementation, the plurality of metal units (121) are spaced apart on the metal layer (112), including: the plurality of metal units (121) are equally spaced apart on the metal layer (112).

[0041] Based on the above technical solution, multiple metal units (121) can be equally spaced on the metal layer (112) in order to improve the cable's carrying capacity.

[0042] In one possible implementation, the interval between any two adjacent metal units (121) in the plurality of metal units (121) is greater than or equal to 5 mm and less than or equal to 15 mm.

[0043] Based on the above technical solution, the interval between any two adjacent metal units (121) in the multiple metal units (121) can be adjusted according to requirements (e.g., the operating frequency of the cable), instead of being a fixed value, which is beneficial for the cable to be applied to different needs.

[0044] For example, when the cable operates at a frequency of 1400MHz - 2690MHz, the interval between any two adjacent metal units (121) is greater than or equal to 10mm and less than or equal to 15mm.

[0045] For example, when the cable operates at a frequency of 3300MHz - 3800MHz, the interval between any two adjacent metal units (121) is greater than or equal to 8mm and less than or equal to 14mm.

[0046] For example, when the cable operates at a frequency of 4800MHz - 5000MHz, the interval between any two adjacent metal units (121) is greater than or equal to 5mm and less than or equal to 10mm.

[0047] For example, when the cable operates at a frequency of 6425MHz - 7125MHz, the interval between any two adjacent metal units (121) is greater than or equal to 5mm and less than or equal to 8mm.

[0048] Furthermore, it is understood that when the number of dielectric units (122) and the number of metal units (121) are equal, the interval between two adjacent dielectric units (122) is equal to the interval between two adjacent metal units (121) corresponding to the two adjacent dielectric units (122). The metal unit (121) corresponding to the dielectric unit (122) can be understood as the dielectric unit (122) located between the metal unit (121) and the metal layer (112).

[0049] In one possible implementation, the length of the metal unit (121) is related to the operating frequency band of the cable, which includes at least one of the following: 1400MHz - 2690MHz, 3300MHz - 3800MHz, 4800MHz - 5000MHz, or 6425MHz - 7125MHz.

[0050] Based on the above technical solutions, the operating frequency band of the cable is most likely to be one of 1400MHz-2690MHz, 3300MHz-3800MHz, 4800MHz-5000MHz, or 6425MHz-7125MHz, so that the designed cable can meet certain operating frequency requirements. The possible operating frequency bands of the cable are listed to facilitate the use of the cable.

[0051] In addition, it is understood that when the number of the medium units (122) and the number of the metal units (121) are equal, the length of a certain medium unit (122) is equal to the spacing between the metal units (121) corresponding to that medium unit (122).

[0052] In one possible implementation, the length of the metal unit (121) is greater than or equal to 10 mm and less than or equal to 40 mm, and the thickness is greater than or equal to 5 mm and less than or equal to 30 mm.

[0053] Based on the above technical solution, the size of the metal unit (121) can be adjusted according to requirements (e.g., the operating frequency of the cable) instead of being a fixed value, which is beneficial for the cable to be applied to different needs.

[0054] For example, when the cable operates at a frequency of 1400MHz - 2690MHz, the length of the metal unit (121) is greater than or equal to 28mm and less than or equal to 40mm, and the thickness is greater than or equal to 14mm and less than or equal to 30mm.

[0055] For example, when the cable operates at a frequency of 3300MHz - 3800MHz, the length of the metal unit (121) is greater than or equal to 16mm and less than or equal to 25mm, and the thickness is greater than or equal to 8mm and less than or equal to 14mm.

[0056] For example, when the cable operates at a frequency of 4800MHz - 5000MHz, the length of the metal unit (121) is greater than or equal to 10mm and less than or equal to 18mm, and the thickness is greater than or equal to 5mm and less than or equal to 12mm.

[0057] For example, when the cable operates at a frequency of 6425MHz - 7125MHz, the length of the metal unit (121) is greater than or equal to 10mm and less than or equal to 15mm, and the thickness is greater than or equal to 5mm and less than or equal to 8mm. In one possible implementation, any two metal units (121) among the plurality of metal units (121) are identical.

[0058] Additionally, it is understood that when the number of the dielectric units (122) is equal to the number of the metal units (121), at least two of the dielectric units (122) are identical. In one possible implementation, the cable comprises a coaxial cable.

[0059] In one possible implementation, the plurality of metal units (121) are a plurality of additional metal layers (121) spaced apart on the metal layer (112).

[0060] In a second aspect, a communication system is provided, comprising: a cable as shown in the first aspect and a first antenna array, the cable being located on the radiation path of the first antenna array.

[0061] Based on the above technical solution, since the cable provided in this application can pass electromagnetic waves within a certain frequency band and reduce the degree of cable blocking electromagnetic waves within a certain frequency band, when the cable is located on the radiation path of the first antenna array, it can reduce the cable's blocking of electromagnetic waves radiated by the first antenna array, thereby achieving conformal protection of the radiation pattern of the first antenna array.

[0062] In one possible implementation, the communication system further includes: a second antenna array, wherein the first antenna array includes a first receiving antenna module, a low-noise amplifier module, and a power supply module, and the second antenna array includes a second receiving antenna module.

[0063] For example, the first antenna array is an active antenna array, and the second antenna array is a passive antenna array. Attached Figure Description

[0064] Figure 1 This is a schematic diagram illustrating the scenario to which the embodiments of this application are applicable.

[0065] Figure 2 This is a schematic diagram of a cable provided in this application.

[0066] Figure 3 This is a schematic diagram of another type of cable provided in this application.

[0067] Figure 4 (a) to (f) are schematic diagrams of the unit structure provided in the embodiments of this application.

[0068] Figure 5 It is a cross-sectional view of a certain unit structure set on the metal layer (112).

[0069] Figure 6 It is a side view of a certain unit structure set on the metal layer (112).

[0070] Figure 7 It is a schematic diagram of the equivalent circuit of a certain unit structure set on the metal layer (112).

[0071] Figure 8 This is a schematic diagram of another type of cable provided in the embodiments of this application.

[0072] Figure 9 (a) and (b) are schematic diagrams of another type of cable provided in the embodiments of this application.

[0073] Figure 10 (a) and (b) in the diagram are schematic diagrams of the unit structure spacing.

[0074] Figure 11 (a) and (b) in the diagram are schematic diagrams of the unit structure size.

[0075] Figure 12 (a) and (b) in the diagram are schematic diagrams of the horizontal position of the unit structure. Detailed Implementation

[0076] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0077] To facilitate understanding of the embodiments of this application, firstly, in conjunction with Figure 1 Sections (a) to (d) briefly describe the scenarios to which the embodiments of this application are applicable.

[0078] As an example, Figure 1 (a) to (d) illustrate the scenarios to which the embodiments of this application are applicable. From Figure 1 As can be seen from (a) in this application, the cable provided in this application can be used with an array antenna.

[0079] from Figure 1 As can be seen from (a) in the middle, Figure 1 The scenario shown in (a) includes: a metal mast for mounting the antenna, a first antenna array, cables, a reflector, and a second antenna array. The metal mast can be a metal rod fixed in a certain position for mounting the antenna; it can also be other forms, which are not limited in this application.

[0080] For example, the first antenna array can be an active antenna array. An active antenna array can be understood as an antenna system composed of many identical individual active antennas arranged in a certain pattern. The active antenna integrates a receiving antenna module, a low-noise amplification module, and a power supply module. The cable is the cable provided in this application, used to transmit signals for the passive antenna array. The cable will be described in detail below, and will not be repeated here. The reflector is the reflector of the passive antenna array used to increase the strength of the reflected or received signal. For example, the reflector is a frequency selective surface (FSS) reflector, which has the function of reflecting electromagnetic waves radiated by the passive antenna array and the function of transmitting electromagnetic waves radiated by the active antenna array.

[0081] For example, the second linear array can be a passive antenna array. A passive antenna array is an antenna without active components.

[0082] It should be noted that this application does not limit the specific structure of the metal mast, the first antenna array, the reflector, and the second antenna array mentioned above; reference can be made to the descriptions in current related technologies.

[0083] from Figure 1 As can be seen in (a), the cable is located between the first antenna array and the second antenna array, and more specifically, the cable is located between the reflectors of the first antenna array and the second antenna array.

[0084] To more intuitively understand the positional relationship between the cable and the first antenna array, combined with Figure 1 Explain (b) to (d) in the text.

[0085] Combination Figure 1 As can be seen from (b) to (d), as one possible implementation, the cable is located above the first antenna array. It should be noted that... Figure 1 (b) to (d) are merely illustrative examples illustrating the positional relationship between the cable and the first antenna array, and do not constitute any limitation on the scope of protection of the embodiments of this application. In the embodiments of this application, the cable may also be located below, to the side, or in other positions of the first antenna array, and part or all of the cable may be located on the radiation path of the first antenna array.

[0086] It is understandable that, for ordinary cables, when located in the radiation path of the first antenna array, the cable will block the electromagnetic waves radiated by the active antenna array, causing the radiation pattern of the first antenna array to deteriorate and affecting the communication quality.

[0087] The cable provided in this application can reduce the obstruction of electromagnetic waves radiated by the first antenna array while transmitting signals for the second antenna array, thereby achieving conformal protection of the radiation pattern of the first antenna array.

[0088] It should be understood that Figure 1 Examples (a) to (d) are merely illustrative of scenarios in which the cable provided in this application can be applied and do not constitute any limitation on the scope of protection of this application. This application can also be applied in other scenarios, such as when the cable is used in conjunction with other communication equipment.

[0089] To facilitate understanding of the technical solutions of the embodiments of this application, before introducing the solutions of the embodiments of this application, some terms or concepts involved in the embodiments of this application will be briefly described first.

[0090] 1. Array antenna.

[0091] An antenna system consisting of many identical individual antennas (e.g., symmetrical antennas) arranged according to a certain pattern is also called an antenna array. The independent units of a typical antenna array are called array elements or antenna elements. If the array elements are arranged in a straight line or a plane, it is called a linear array or a planar array.

[0092] 2. Antenna radiation pattern.

[0093] Also known as the antenna's radiation pattern or far-field pattern, the antenna's radiation pattern is a graphical representation of how the relative field strength (normalized modulus) of the radiated field changes with direction at a certain distance from the antenna. It is typically represented by two mutually perpendicular plane radiation patterns passing through the antenna's maximum radiation direction. Antenna radiation patterns can be categorized into horizontal plane radiation patterns and vertical plane radiation patterns.

[0094] 3. Cables.

[0095] A cable is a device for transmitting electrical energy or signals, and it is usually composed of several or groups of wires.

[0096] 4. Coaxial cable.

[0097] A coaxial cable is a type of electrical wire and signal transmission line, typically made of four layers: the innermost layer is a conductive copper wire, the outside of which is surrounded by a layer of plastic (used as insulation and dielectric), the outside of which is a thin mesh conductive material (usually copper or an alloy), and then the outermost insulating material serves as the outer sheath.

[0098] Coaxial cable can be used to transmit both analog and digital signals, and is suitable for a wide variety of applications, primarily television broadcasting, long-distance telephone transmission, short-distance connections between computer systems, and local area networks (LANs). Coaxial cable has developed rapidly as a means of transmitting television signals to households, leading to cable television. A cable television system can carry dozens or even hundreds of television channels, with a transmission range of tens of kilometers. For a long time, coaxial cable has been an important component of long-distance telephone networks.

[0099] 5. FSS.

[0100] A frequency selective array (FSS) is a two-dimensional periodic array structure. Essentially, it is a spatial filter that interacts with electromagnetic waves, exhibiting distinct bandpass or bandstop filtering characteristics. Due to its specific frequency selectivity, the FSS is widely used in microwave, infrared, and visible light bands.

[0101] The above text combined Figure 1 This paper introduces the scenarios in which the embodiments of this application can be applied, and also briefly introduces the basic concepts involved in this application. The cable and communication system provided by this application will be described in detail below with reference to the accompanying drawings.

[0102] It should be noted that the first, second, and various numerical designations (e.g., "#1", "#2", etc.) shown in this application are for descriptive convenience only, used to distinguish objects, and are not intended to limit the scope of the embodiments of this application. For example, they are used to distinguish different metal units, etc., and are not used to describe a specific order or sequence. It should be understood that the objects described in this way can be interchanged where appropriate, so as to describe solutions other than those in the embodiments of this application.

[0103] The cable provided in this application will be described in detail below with reference to the accompanying drawings.

[0104] This application provides a cable, including: a first part (110) and a second part (120).

[0105] Specifically, the first part (110) includes: a cable core (111), a metal layer (112) and a dielectric layer (113), wherein the metal layer (112) wraps around the cable core (111) and the dielectric layer (113) is located between the cable core (111) and the metal layer (112).

[0106] The second part (120) includes: a plurality of metal units (121) and a dielectric unit (122), wherein the plurality of metal units (121) are spaced apart on the metal layer (112) and the dielectric unit (122) is located between the plurality of metal units (121) and the metal layer (112).

[0107] As one possible implementation, multiple metal units (121) are spaced apart on the metal layer (112). In this implementation, multiple metal units (121) can be considered as being attached one by one to the metal layer (112).

[0108] For example, the first part (110) mentioned above is a common cable (or a conventional cable), while the second part (120) is a plurality of unit structures attached to the outer metal layer (112) of the common cable. Each unit structure includes a metal unit (121) and a dielectric unit (122). As another possible implementation, the plurality of metal units (121) are spaced apart on the metal layer (112). This can be achieved by first setting an additional metal layer on the metal layer (112) (e.g., the additional metal layer wraps the metal layer (112), and an additional dielectric layer is set between the additional metal layer and the metal layer (112), and slots are made in the metal layer to form the plurality of metal units (121) mentioned above. In this implementation, the plurality of metal units (121) can be considered to be achieved by slotting the additional metal layer on the metal layer (112).

[0109] For example, an additional dielectric layer and an additional metal layer are sequentially disposed on the outer metal layer (112) of a regular cable that does not have a bandpass function to form a thickened regular cable. Then, multiple slots are spaced apart on the thickened regular cable, and the part between two adjacent slots is a unit structure. Each unit structure includes a metal unit (121) and a dielectric unit (122).

[0110] It should be noted that the method of preparing the cable described above is not limited in this application, and the cable with the structure described above, including the first part (110) and the second part (120), is acceptable.

[0111] As can be seen from the aforementioned basic concepts, FSS has a specific frequency selection function. The cable provided in this application can achieve electromagnetic wave pass-through within a certain frequency band by arranging multiple metal units (121) at intervals on the metal layer (112) of the cable, so as to reduce the degree of shielding of electromagnetic waves in a certain frequency band by the cable.

[0112] Furthermore, by placing the cable, which includes the first part (110) and the second part (120) as described above, along the radiation path of the antenna, the degree of obstruction of the electromagnetic waves radiated by the antenna can be reduced, thereby avoiding antenna pattern distortion. Specific examples will be used below to illustrate how to avoid antenna pattern distortion, which will not be elaborated upon here.

[0113] It should be noted that the application scenarios of the cable are not limited in this application embodiment. When the cable, which includes the first part (110) and the second part (120) as described above, is used in conjunction with other devices that can radiate electromagnetic waves of a certain frequency band (e.g., the cable is located on the radiation path of the device), the degree of cable blocking electromagnetic waves of a certain frequency band can be reduced.

[0114] As one possible implementation, the number of the dielectric units (122) is equal to the number of the metal units (121), with one dielectric unit (122) located between one metal unit (121) and the metal layer (112).

[0115] For example, such as Figure 2 As shown, Figure 2 This is a schematic diagram of a cable provided in this application. Figure 2 As can be seen from the above, a medium unit (122) and a metal unit (121) can be regarded as a unit structure. The second part (120) includes multiple unit structures, which are spaced apart on the metal layer (112). Any two unit structures are the same.

[0116] It should be noted that when a dielectric unit (122) and a metal unit (121) constitute a unit structure, no dielectric unit (122) is provided at the interval position between the metal units (121), which is beneficial for the bending of the cable; and avoids providing dielectric units (122) on the entire metal layer (112), thus reducing costs.

[0117] For example, a metal unit (121) can be a metal sleeve with a medium unit (122) disposed on the inner wall of the metal sleeve, and multiple metal sleeves with medium units (122) disposed on the inner wall are spaced together on the metal layer (112).

[0118] For example, a metal unit (121) can be a metal sleeve, and multiple metal sleeves are spaced together on the first part (110). The gaps between the multiple metal sleeves and the metal layer (112) and the air in the gaps can form multiple dielectric units (122).

[0119] As another possible implementation, the number of dielectric units (122) is one, the dielectric unit (122) is wrapped around the metal layer (112), and is disposed between the plurality of metal units (121) and the metal layer (112). The plurality of metal units (121) are spaced apart on the metal layer (112), including: the plurality of metal units (121) are spaced apart on the dielectric unit (122). The second part (120) includes the plurality of metal units (121) and one dielectric unit (122).

[0120] For example, such as Figure 3 As shown, Figure 3 This is a schematic diagram of another type of cable provided in this application. From Figure 3 As can be seen, a dielectric unit (122) is provided on the metal layer (112). The dielectric unit (122) can be regarded as a whole, and there is no need to consider the number of metal units (121).

[0121] It should be noted that when there is only one medium unit (122), the processing technology can be simplified.

[0122] Additionally, it should be noted that in order for the metal unit (121) to be stably disposed on the metal layer (112), the aforementioned dielectric unit (122) can be made of a dielectric material, rather than being formed naturally by an air gap. The dielectric material used to make the dielectric unit (122) can be Teflon material, or other insulating materials, such as plastics, ceramics, glass, etc.

[0123] As one possible implementation, one of the plurality of metal units (121) is disposed on the annular first region of the metal layer (112), and the metal unit (121) completely covers the annular first region.

[0124] For example, the metal unit (121) is annular, and the annular metal unit (121) is fitted on the metal layer (112) to completely cover the area where the metal unit (121) is located.

[0125] For example, the metal unit (121) is a regular hollow polygon (e.g., a hollow cuboid, a hollow pentagon, a hollow hexagon, etc.). The regular hollow polygonal metal unit (121) is placed on the metal layer (112) and can completely cover the area where the metal unit (121) is located.

[0126] For example, the metal unit (121) is an irregular hollow body (e.g., an irregularly shaped outer surface and a cylindrical inner surface). The irregularly shaped hollow metal unit (121) is fitted onto the metal layer (112) and can completely cover the area where the metal unit (121) is located.

[0127] It should be noted that, under this implementation, the specific shape of the annular metal unit (121) disposed on the annular first region of the metal layer (112) is not limited in this embodiment of the application, as long as it can completely cover the annular first region.

[0128] In addition, the hollow part of the hollow metal unit (121) is not necessarily cylindrical. It can be determined according to the shape of the first part (110) of the cable. For example, the first part (110) of the cable is cylindrical and the hollow part of the hollow metal unit (121) is cylindrical; or the first part (110) of the cable is hexagonal columnar and the hollow part of the annular metal unit (121) is hexagonal columnar. Examples will not be given here.

[0129] As another possible implementation, one of the plurality of metal units (121) is disposed on the annular first region of the metal layer (112), and the metal unit (121) partially covers the annular first region.

[0130] For example, the metal unit (121) is spiral-shaped and is fitted onto the metal layer (112), which can partially cover the area where the metal unit (121) is located.

[0131] For example, the metal unit (121) is a semi-circular ring.

[0132] For example, the metal unit (121) is a ring with a hollowed-out area.

[0133] For example, the metal unit (121) is partially annular and partially spiral.

[0134] It should be noted that, under this implementation, the specific shape of the annular metal unit (121) disposed on the annular first region of the metal layer (112) is not limited in this embodiment of the application, as long as it partially covers the annular first region.

[0135] For ease of understanding, the following describes a unit structure composed of a metal unit (121) and a dielectric unit (122) (e.g., the shape of the dielectric unit (122) is the same as the shape of the metal unit (121), and the dielectric unit (122) is disposed on the inner surface of the metal unit (121). Figure 4 This section provides a brief overview of the possible forms of unit structures. Figure 4 (a) to (f) are schematic diagrams of the unit structure provided in the embodiments of this application.

[0136] from Figure 4 As can be seen from (a) to (f) in the figure, the shape of the unit structure composed of dielectric unit (122) and metal unit (121) can be in many forms.

[0137] in, Figure 4If the unit structure shown in (a) is annular (e.g., hollow cylinder), then the metal unit (121) is annular. The annular metal unit (121) is fitted onto the first part (110). The annular metal unit (121) can completely cover the area where the metal unit (121) is located (e.g., the first area mentioned above).

[0138] Figure 4 The unit structure shown in (b) is a hollow cuboid. The metal unit (121) is a hollow cuboid. The hollow cuboid metal unit (121) is fitted onto the first part (110). The hollow cuboid metal unit (121) can completely cover the area where the metal unit (121) is located (e.g., the first area mentioned above).

[0139] Alternatively, in addition to such Figure 4 In addition to the hollow cuboid shown in (b), the shape of the unit structure can also be a regular hollow polygon (e.g., a hollow pentagon, a hollow hexagon, etc.) after simple expansion. The regular hollow polygon-shaped metal unit (121) is fitted onto the first part (110). The regular hollow polygon-shaped metal unit (121) can completely cover the area where the metal unit (121) is located (e.g., the first area mentioned above).

[0140] Alternatively, in addition to such Figure 4 In addition to the hollow cuboid shown in (b), the shape of the unit structure can also be an irregular hollow body (e.g., a structure with an irregular outer surface and a cylindrical inner surface) after simple expansion. The irregular hollow metal unit (121) is fitted onto the first part (110). The irregular hollow metal unit (121) can completely cover the area where the metal unit (121) is located (e.g., the first area mentioned above).

[0141] Alternatively, in addition to such Figure 4 As shown in (a) and as in Figure 4 The hollow part of the metal unit (121) shown in (b) is a cylinder. The hollow part of the metal unit (121) can also be a column of other shapes (e.g., a pentagonal column, a hexagonal column, etc.).

[0142] Figure 4 The unit structure shown in (d) is semi-circular, so the metal unit (121) is semi-circular. The semi-circular metal unit (121) is disposed on the annular first region of the first part (110). The semi-circular metal unit (121) cannot completely cover the annular first region.

[0143] Alternatively, in addition to such Figure 4 The semi-circular ring shown in (d) can be extended to form a unit structure with a regular or irregular outer surface and a semi-cylindrical inner surface.

[0144] Figure 4 The unit structure shown in (e) is a ring with a hollow area. The metal unit (121) is a ring with a hollow area. The metal unit (121) with a hollow area is disposed on the first ring area of ​​the first part (110). The metal unit (121) with a hollow area cannot completely cover the first ring area.

[0145] Alternatively, in addition to such Figure 4 The circular ring with a hollow area shown in (e) can be extended to form a regular hollow body or an irregular hollow body with a hollow area.

[0146] Figure 4 The unit structure shown in (f) is partly circular and partly spiral;

[0147] Alternatively, in addition to such Figure 4 In addition to circular and spiral shapes, the unit structure shown in (f) can also include other shapes, such as circular and semi-circular shapes.

[0148] It should be noted that, Figure 4 Examples (a) to (f) are merely illustrative of possible unit structures and do not constitute any limitation on the scope of protection of this application. For example, the dielectric unit (122) in the unit structure may be slightly larger than the metal unit (121), and the metal unit (121) in the unit structure may be slightly larger than the dielectric unit (122). Further examples will not be provided here.

[0149] As can be seen from the above, by setting multiple metal units (121) at intervals on the metal layer (112) of the cable, it is possible to achieve electromagnetic wave pass-through within a certain frequency band. This certain frequency band can be understood as the working frequency band of the cable. In other words, different cables can be designed for different working frequency band requirements.

[0150] For example, the size (e.g., length, thickness, etc.) of the metal unit (121) is related to the operating frequency band of the cable; or it can be said that the size of the metal unit (121) is designed according to the requirements of the operating frequency band of the cable.

[0151] To facilitate understanding, the unit structure consisting of metal units (121) and dielectric units (122) described above is as follows. Figure 4 Taking the shape shown in (a) as an example, combined with Figures 5 to 7 The relationship between the size of the metal unit (121) and the operating frequency band of the cable is described in detail.

[0152] Figure 5 It is a cross-sectional view of a certain unit structure set on the metal layer (112). Figure 6 It is a side view of a certain unit structure set on the metal layer (112).

[0153] from Figure 5 As can be seen from the diagram, the metal unit (121) and the metal layer (112) together act as an equivalent capacitor C1, the metal layer (112) is equivalent to an inductor L2, and the metal unit (121) is equivalent to an inductor L1.

[0154] Figure 7 yes Figure 5 A schematic diagram of the equivalent circuit of a certain unit structure disposed on the metal layer (112) is shown. From Figure 7 As can be seen from the diagram, setting a certain unit structure on the metal layer (112) is equivalent to a series-parallel circuit structure, generating a series resonant frequency f1 and a parallel resonant frequency f2.

[0155] from Figures 5 to 7 It can be seen that the different operating frequency bands of the cable can be achieved by designing the size of the metal unit (121).

[0156] As one possible implementation, by designing the size of the metal unit (121) so that the operating frequency band of the cable is f1~f2, where f1 represents the lowest operating frequency of the cable and f2 represents the highest operating frequency of the cable, the cable provided in this application will not cause any obstruction to frequencies between f1~f2 (e.g., frequencies greater than or equal to f1 and less than or equal to f2).

[0157] As another possible implementation, the size of the metal unit (121) is designed such that the operating frequency band of the cable is less than or equal to f1 and greater than or equal to f2, where f1 is less than f2. Therefore, the cable provided in this application will not cause significant obstruction at frequencies less than or equal to f1 and greater than or equal to f2 (e.g., frequencies greater than or equal to f1 and less than or equal to f2).

[0158] It should be noted that the above are merely examples illustrating that the operating frequency band of the cable provided in this application is related to the size of the metal unit (121), and do not constitute any limitation on the scope of protection of this application. Cables with different operating frequency bands can be designed according to requirements. Examples will not be provided here.

[0159] In addition, when the number of the dielectric units (122) is equal to the number of the metal units (121), the size of the dielectric units (122) is also related to the required operating frequency band.

[0160] Furthermore, the bandpass effect of a cable on electromagnetic waves within a certain frequency band can be improved in the following ways:

[0161] Method 1: Multiple metal units (121) are equally spaced on the metal layer (112).

[0162] To facilitate understanding, the unit structure consisting of metal units (121) and dielectric units (122) described above is as follows. Figure 4 Taking the shape shown in (a) as an example, combined with Figure 8 Explain how multiple unit structures are equally spaced on the metal layer (112), such as... Figure 8 As shown, Figure 8 This is a schematic diagram of another type of cable provided in the embodiments of this application.

[0163] from Figure 8 As can be seen from this, the interval between any two adjacent unit structures is L (e.g., Figure 8 The interval between adjacent unit structures #1 and #2 shown is L, and the interval between unit structures #2 and #3 is L.

[0164] Method 2: Reduce the spacing between metal units (121).

[0165] The effect of the cable in passing electromagnetic waves within a certain frequency band can be improved by setting as many metal units (121) as possible on a cable of a certain length.

[0166] To facilitate understanding, the unit structure consisting of metal units (121) and dielectric units (122) described above is as follows. Figure 4 Taking the shape shown in (a) as an example, combined with Figure 9 Figures (a) and (b) illustrate how reducing the spacing between the metal units (121) can improve the cable's bandpass capability for electromagnetic waves within a certain frequency band. Figure 9 As shown, Figure 9 (a) and (b) are schematic diagrams of another type of cable provided in the embodiments of this application.

[0167] from Figure 9 As can be seen from (a) and (b) in the text, Figure 9 The cables shown in (a) and (b) are the same length and the unit structure is the same size, but... Figure 9 The number of unit structures set in (a) is less than Figure 9 The number of unit structures set in (b) of the text, or in other words Figure 9 In (a), the spacing between the unit structures is greater than [amount missing]. Figure 9 The spacing between the unit structures is set in (b) of the diagram. As one possible implementation, the spacing between any two adjacent metal units (121) is greater than or equal to 5 mm and less than or equal to 15 mm. When the number of dielectric units (122) is equal to the number of metal units (121), the spacing between any two adjacent dielectric units (122) is greater than or equal to 5 mm and less than or equal to 15 mm.

[0168] For example, a metal unit (121) and a dielectric unit (122) constitute a unit structure (e.g., the shape of the dielectric unit (122) is the same as that of the metal unit (121), and the dielectric unit (122) is disposed on the inner surface of the metal unit (121). The interval between any two adjacent unit structures in the multiple unit structures is greater than or equal to 5 mm and less than or equal to 15 mm.

[0169] For ease of understanding, combined with Figure 10 Explain (a) and (b) in the text. Figure 10 (a) and (b) in the diagram are schematic diagrams of the unit structure spacing.

[0170] from Figure 10 As can be seen from (a) in the figure, the unit structure is a hollow cylinder, and the interval g between two adjacent unit structures is greater than or equal to 5 mm and less than or equal to 15 mm.

[0171] from Figure 10 As can be seen from (b), the unit structure is spiral, and the interval g between two adjacent unit structures is greater than or equal to 5 mm and less than or equal to 15 mm.

[0172] It should be noted that, Figure 10 Examples (a) and (b) are merely illustrative of the spacing between unit structures and do not constitute any limitation on the scope of protection of this application. For example, the unit structure can also be other shapes (e.g., Figure 4 (b), (d), (e), (f), etc.); For example, the spacing between unit structures can also be outside the range of greater than or equal to 5 mm and less than or equal to 15 mm, which will not be listed here.

[0173] Specifically, the spacing between two adjacent unit structures is within the range of 5mm or greater and 15mm or less, and can also be adjusted according to the required operating frequency band. The following will illustrate this with specific examples (such as Examples 1 to 4 below), and will not be elaborated here.

[0174] As one possible implementation, the length of the metal unit (121) is related to the operating frequency band of the cable.

[0175] When the number of dielectric units (122) and the number of metal units (121) are equal, the length of the dielectric unit (122) is related to the operating frequency band of the cable.

[0176] The operating frequency band of the cable includes at least one of the following:

[0177] 1400MHz -2690MHz, 3300MHz -3800MHz, 4800MHz -5000MHz or 6425MHz -7125MHz.

[0178] For example, the length of the metal unit (121) is greater than or equal to 10 mm and less than or equal to 40 mm, and the thickness is greater than or equal to 5 mm and less than or equal to 30 mm;

[0179] When the number of the medium units (122) is equal to the number of the metal units (121), the length of the medium unit (122) is greater than or equal to 10 mm and less than or equal to 40 mm, and the thickness is greater than or equal to 5 mm and less than or equal to 30 mm.

[0180] For example, a metal unit (121) and a dielectric unit (122) constitute a unit structure (e.g., the shape of the dielectric unit (122) is the same as the shape of the metal unit (121), and the dielectric unit (122) is disposed on the inner surface of the metal unit (121). In multiple unit structures, the length of any unit structure is greater than or equal to 10 mm and less than or equal to 40 mm, and the thickness is greater than or equal to 5 mm and less than or equal to 30 mm.

[0181] For ease of understanding, combined with Figure 11 Explain (a) and (b) in the text. Figure 11 (a) and (b) in the diagram are schematic diagrams of the unit structure size.

[0182] from Figure 11 As can be seen from (a) in the figure, the unit structure is a hollow cylinder with a length L greater than or equal to 10 mm and less than or equal to 40 mm, and a thickness d greater than or equal to 5 mm and less than or equal to 30 mm.

[0183] from Figure 11As can be seen from (b) in the figure, the unit structure is spiral, the unit structure length L is greater than or equal to 10 mm and less than or equal to 40 mm, and the thickness d is greater than or equal to 5 mm and less than or equal to 30 mm.

[0184] It should be noted that, Figure 11 Examples (a) and (b) are merely illustrative of the spacing between unit structures and do not constitute any limitation on the scope of protection of this application. For example, the unit structure can also be other shapes (e.g., Figure 4 (b), (d), (e), (f), etc.); For example, the length of the unit structure can also be outside the range of greater than or equal to 10 mm and less than or equal to 40 mm, and / or the thickness of the unit structure can also be outside the range of greater than or equal to 5 mm and less than or equal to 30 mm. Examples will not be given here.

[0185] Specifically, the unit structure length is within the range of 10mm or more and 40mm or less, and the thickness is within the range of 5mm or more and 30mm or less. It can also be adjusted according to the required operating frequency band. The following will illustrate this with specific examples (such as Examples 1 to 4 below), and will not be repeated here.

[0186] As one possible implementation, the aforementioned multiple metal units (121) are located on the same horizontal line (e.g., on the same layer); or, the aforementioned multiple metal units (121) may be located on different horizontal lines (e.g., on different layers).

[0187] For example, a metal unit (121) and a dielectric unit (122) constitute a unit structure. For ease of understanding, [the following is a more detailed explanation]. Figure 12 Explain (a) and (b) in the text. Figure 12 (a) and (b) in the diagram are schematic diagrams of the horizontal position of the unit structure.

[0188] from Figure 12 As can be seen from (a), multiple unit structures are located on the same horizontal line. For example, multiple unit structures are set close to the metal layer (112).

[0189] from Figure 12 As can be seen from (b) in the figure, multiple unit structures are located on different horizontal lines. For example, some unit structures in the multiple unit structures are set close to the metal layer (112), and additional layers (such as other additional metal layers and / or dielectric layers) can be set between other unit structures and the metal layer (112).

[0190] It should be noted that, Figure 12Examples (a) and (b) are merely illustrative of whether the unit structure lies on a horizontal line and do not constitute any limitation on the scope of protection of this application. For example, the unit structure can also be other shapes (e.g., Figure 4 (b), (d), (e), (f), etc.); for example, there may be other cases for the additional layer between the unit structure and the metal layer (112).

[0191] As one possible implementation, the aforementioned dielectric layer (113) can be an air layer (113) located between the cable core (111) and the metal layer (112). That is, the dielectric layer (113) does not need to be fabricated separately and can be formed naturally from the gap between the cable core (111) and the metal layer (112). When the dielectric layer (113) is an air layer (113), the production cost of the cable is reduced.

[0192] For example, the metal layer (112) is a metal tube that is sleeved on the cable core (111), and there is a gap between the metal tube and the cable core (111).

[0193] As another possible implementation, the aforementioned dielectric layer (113) can be a dielectric layer (113) made of the first dielectric and disposed between the cable core (111) and the metal layer (112). That is, the dielectric layer (113) can be made separately, which is beneficial to the stability and assembly of the cable.

[0194] For example, the first medium can be Teflon material, or other insulating materials such as plastics, ceramics, glass, etc.

[0195] For example, the cable provided in this application is used in Figure 1 In the scenario shown, the following specific examples illustrate how the cable provided in this application improves the performance of the antenna radiation pattern.

[0196] Example 1: The cable described above in this application needs to be used in conjunction with an active antenna array operating in the 1400MHz-2690MHz frequency band to avoid pattern distortion of the active antenna array operating in the 1400MHz-2690MHz frequency band.

[0197] For ease of understanding, the following explanation will be based on the example of a unit structure consisting of a metal unit (121) and a dielectric unit (122) (e.g., the shape of the dielectric unit (122) is the same as that of the metal unit (121), and the dielectric unit (122) is disposed on the inner surface of the metal unit (121).

[0198] As can be seen from the above, the operating frequency band of the cable can be adjusted by adjusting the size of the unit structure, and the operating frequency band of the cable can also be adjusted by adjusting the spacing between the unit structures.

[0199] In this example, one possible implementation is to design the size of the aforementioned unit structure so that the operating frequency band of the cable is the same as that of the active antenna array, i.e., the operating frequency band of the cable is 1400MHz-2690MHz, so as to achieve the cable's bandpass for electromagnetic waves in the 1400MHz-2690MHz frequency band, thereby reducing the degree of cable's obstruction of electromagnetic waves in the 1400MHz-2690MHz frequency band and achieving the purpose of conformal radiation pattern of the active antenna array.

[0200] For example, the length of the unit structure is greater than or equal to 28mm and less than or equal to 40mm, and the thickness is greater than or equal to 14mm and less than or equal to 30mm.

[0201] For example, the size of the unit structure can be designed by adjusting the size of the unit structure within a range of length greater than or equal to 10 mm and less than or equal to 40 mm, and thickness greater than or equal to 5 mm and less than or equal to 30 mm, based on the distortion degree of the radiation pattern of the active antenna array. This determines the range of values ​​for the length and thickness of the unit structure that ensures the distortion of the radiation pattern of the active antenna array meets the requirements (e.g., the distortion is less than a preset threshold). Another possible implementation is to design the spacing between the unit structures so that the operating frequency band of the cable is the same as that of the active antenna array, i.e., the operating frequency band of the cable is 1400MHz-2690MHz. This allows the cable to pass through the electromagnetic waves in the 1400MHz-2690MHz frequency band, thereby reducing the degree of shielding of the cable against the electromagnetic waves in the 1400MHz-2690MHz frequency band and achieving the purpose of preserving the radiation pattern of the active antenna array.

[0202] For example, the interval between any two adjacent unit structures in a multi-unit structure is greater than or equal to 10 mm and less than or equal to 15 mm.

[0203] For example, the spacing between the design unit structures can be: adjusting the spacing between two adjacent unit structures within the range of 5 mm or more and 15 mm or less, based on the distortion degree of the radiation pattern of the active antenna array, to determine the range of values ​​for the spacing between two adjacent unit structures that ensures the distortion of the radiation pattern of the active antenna array meets the requirements (e.g., the distortion is less than a preset threshold).

[0204] Example 2: The cable described above in this application needs to be used in conjunction with an active antenna array operating in the 3300MHz-3800MHz frequency band to avoid pattern distortion of the active antenna array operating in the 3300MHz-3800MHz frequency band.

[0205] For ease of understanding, the following explanation will be based on the example of a unit structure consisting of a metal unit (121) and a dielectric unit (122) (e.g., the shape of the dielectric unit (122) is the same as that of the metal unit (121), and the dielectric unit (122) is disposed on the inner surface of the metal unit (121).

[0206] In this example, one possible implementation is to design the size of the aforementioned unit structure so that the operating frequency band of the cable is the same as that of the active antenna array, i.e., the operating frequency band of the cable is 3300MHz-3800MHz, so as to achieve the cable's bandpass for electromagnetic waves in the 3300MHz-3800MHz frequency band, thereby reducing the degree of cable's obstruction of electromagnetic waves in the 3300MHz-3800MHz frequency band and achieving the purpose of conformal radiation pattern of the active antenna array.

[0207] For example, the length of the unit structure is greater than or equal to 16mm and less than or equal to 25mm, and the thickness is greater than or equal to 8mm and less than or equal to 14mm.

[0208] For example, the size of the design unit structure can be adjusted according to the distortion degree of the radiation pattern of the active antenna array, within the range of length greater than or equal to 10 mm and less than or equal to 40 mm, and thickness greater than or equal to 5 mm and less than or equal to 30 mm, to determine the range of values ​​for the length and thickness of the unit structure that makes the distortion of the radiation pattern of the active antenna array meet the requirements (e.g., the distortion is less than a preset threshold).

[0209] Another possible implementation is to design the spacing between the above-mentioned unit structures so that the operating frequency band of the cable is the same as that of the active antenna array, that is, the operating frequency band of the cable is 3300MHz-3800MHz, so as to achieve the cable's bandpass of electromagnetic waves in the 3300MHz-3800MHz frequency band, thereby reducing the degree of cable's obstruction of electromagnetic waves in the 3300MHz-3800MHz frequency band and achieving the purpose of conformal radiation pattern of the active antenna array.

[0210] For example, the interval between any two adjacent unit structures in a multi-unit structure is greater than or equal to 8 mm and less than or equal to 14 mm.

[0211] For example, the spacing between the design unit structures can be: adjusting the spacing between two adjacent unit structures within the range of 5 mm or more and 15 mm or less, based on the distortion degree of the radiation pattern of the active antenna array, to determine the range of values ​​for the spacing between two adjacent unit structures that ensures the distortion of the radiation pattern of the active antenna array meets the requirements (e.g., the distortion is less than a preset threshold).

[0212] Example 3: The cable described above in this application needs to be used in conjunction with an active antenna array operating in the 4800MHz-5000MHz frequency band to avoid pattern distortion of the active antenna array operating in the 4800MHz-5000MHz frequency band.

[0213] For ease of understanding, the following explanation will be based on the example of a unit structure consisting of a metal unit (121) and a dielectric unit (122) (e.g., the shape of the dielectric unit (122) is the same as that of the metal unit (121), and the dielectric unit (122) is disposed on the inner surface of the metal unit (121).

[0214] In this example, one possible implementation is to design the size of the aforementioned unit structure so that the operating frequency band of the cable is the same as that of the active antenna array, i.e., the operating frequency band of the cable is 4800MHz-5000MHz, so as to achieve the cable's bandpass for electromagnetic waves in the 4800MHz-5000MHz frequency band, thereby reducing the degree of cable's obstruction of electromagnetic waves in the 4800MHz-5000MHz frequency band and achieving the purpose of conformal pattern preservation of the active antenna array.

[0215] For example, the length of the unit structure is greater than or equal to 10 mm and less than or equal to 18 mm, and the thickness is greater than or equal to 5 mm and less than or equal to 12 mm.

[0216] For example, the size of the design unit structure can be adjusted according to the distortion degree of the radiation pattern of the active antenna array, within the range of length greater than or equal to 10 mm and less than or equal to 40 mm, and thickness greater than or equal to 5 mm and less than or equal to 30 mm, to determine the range of values ​​for the length and thickness of the unit structure that makes the distortion of the radiation pattern of the active antenna array meet the requirements (e.g., the distortion is less than a preset threshold).

[0217] Another possible implementation is to design the spacing between the above-mentioned unit structures so that the operating frequency band of the cable is the same as that of the active antenna array, that is, the operating frequency band of the cable is 4800MHz-5000MHz, so as to achieve the cable's bandpass of electromagnetic waves in the 4800MHz-5000MHz frequency band, thereby reducing the degree of cable's obstruction of electromagnetic waves in the 4800MHz-5000MHz frequency band and achieving the purpose of conformal radiation pattern of the active antenna array.

[0218] For example, the interval between any two adjacent unit structures in a multi-unit structure is greater than or equal to 5 mm and less than or equal to 10 mm.

[0219] For example, the spacing between the design unit structures can be: adjusting the spacing between two adjacent unit structures within the range of 5 mm or more and 15 mm or less, based on the distortion degree of the radiation pattern of the active antenna array, to determine the range of values ​​for the spacing between two adjacent unit structures that ensures the distortion of the radiation pattern of the active antenna array meets the requirements (e.g., the distortion is less than a preset threshold).

[0220] Example 4: The cable described above in this application needs to be used in conjunction with an active antenna array operating in the 6425MHz-7125MHz frequency band to avoid pattern distortion of the active antenna array operating in the 6425MHz-7125MHz frequency band.

[0221] For ease of understanding, the following explanation will be based on the example of a unit structure consisting of a metal unit (121) and a dielectric unit (122) (e.g., the shape of the dielectric unit (122) is the same as that of the metal unit (121), and the dielectric unit (122) is disposed on the inner surface of the metal unit (121).

[0222] In this example, one possible implementation is to design the size of the aforementioned unit structure so that the operating frequency band of the cable is the same as that of the active antenna array, i.e., the operating frequency band of the cable is 6425MHz-7125MHz, so that the cable can pass through the electromagnetic waves in the 4800MHz-5000MHz frequency band, thereby reducing the degree of cable blocking the electromagnetic waves in the 6425MHz-7125MHz frequency band and achieving the purpose of conformal radiation pattern of the active antenna array.

[0223] For example, the length of the unit structure is greater than or equal to 10 mm and less than or equal to 15 mm, and the thickness is greater than or equal to 5 mm and less than or equal to 8 mm.

[0224] For example, the size of the design unit structure can be adjusted according to the distortion degree of the radiation pattern of the active antenna array, within the range of length greater than or equal to 10 mm and less than or equal to 40 mm, and thickness greater than or equal to 5 mm and less than or equal to 30 mm, to determine the range of values ​​for the length and thickness of the unit structure that makes the distortion of the radiation pattern of the active antenna array meet the requirements (e.g., the distortion is less than a preset threshold).

[0225] Another possible implementation is to design the spacing between the aforementioned unit structures so that the operating frequency band of the cable is the same as that of the active antenna array, i.e., the operating frequency band of the cable is 6425MHz-7125MHz. This allows the cable to pass through the electromagnetic waves in the 6425MHz-7125MHz frequency band, thereby reducing the degree of cable blockage of the electromagnetic waves in the 6425MHz-7125MHz frequency band and achieving the purpose of conformal radiation pattern preservation of the active antenna array.

[0226] For example, the interval between any two adjacent unit structures in a multi-unit structure is greater than or equal to 5 mm and less than or equal to 8 mm.

[0227] For example, the spacing between the design unit structures can be: adjusting the spacing between two adjacent unit structures within the range of 5 mm or more and 15 mm or less, based on the distortion degree of the radiation pattern of the active antenna array, to determine the range of values ​​for the spacing between two adjacent unit structures that ensures the distortion of the radiation pattern of the active antenna array meets the requirements (e.g., the distortion is less than a preset threshold).

[0228] It should be understood that the above are merely examples illustrating that different cables can be designed according to requirements, and do not constitute any limitation on the scope of protection of this application. Cables with other different operating frequency bands can also be designed according to the operating frequency band of the equipment used with the cable, which will not be illustrated here.

[0229] It should be noted that the above mainly uses the example of how to reduce the degree of shielding of electromagnetic waves of a certain frequency band by the cable. In addition to adding a second part (120) to the ordinary cable as shown above, a second part (120) can also be added to other equipment to reduce the degree of shielding of electromagnetic waves of a certain frequency band by the equipment. For example, the first part (110) mentioned above can also be an ordinary metal rod or other metal parts. This application will not give examples of each one.

[0230] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A cable, characterized in that, The cable is located on the radiation path of the first antenna array, and the cable includes: Part 1 (110) and Part 2 (120). The first part (110) includes: cable core (111), metal layer (112) and dielectric layer (113). The metal layer (112) is wrapped around the cable core (111), and the dielectric layer (113) is located between the cable core (111) and the metal layer (112). The second part (120) includes: a plurality of metal units (121) and a plurality of dielectric units (122). The plurality of metal units (121) are spaced apart on the metal layer (112), and the dielectric unit (122) is located between the plurality of metal units (121) and the metal layer (112). The number of dielectric units (122) is equal to the number of metal units (121), and one dielectric unit (122) is located between one metal unit (121) and the metal layer (112). By arranging a plurality of metal units (121) at intervals on the metal layer (112) of the cable, the degree of shielding of the electromagnetic waves radiated by the cable to the first antenna array is reduced.

2. The cable according to claim 1, characterized in that, One of the plurality of metal units (121) is disposed on the annular first region of the metal layer (112). The metal unit (121) covers all or part of the annular first region.

3. The cable according to claim 1 or 2, characterized in that, The shape of the metal unit (121) includes a ring or a spiral.

4. The cable according to claim 1 or 2, characterized in that, The plurality of metal units (121) are spaced apart on the metal layer (112), including: The plurality of metal units (121) are equally spaced on the metal layer (112).

5. The cable according to claim 1 or 2, characterized in that, The interval between any two adjacent metal units (121) in the plurality of metal units (121) is greater than or equal to 5 mm and less than or equal to 15 mm; When the number of the medium units (122) and the number of the metal units (121) are equal, the interval between any two adjacent medium units (122) is greater than or equal to 5 mm and less than or equal to 15 mm.

6. The cable according to claim 1 or 2, characterized in that, The length of the metal unit (121) is related to the operating frequency band of the cable. When the number of dielectric units (122) and the number of metal units (121) are equal, the length of the dielectric unit (122) is related to the operating frequency band of the cable. The operating frequency band of the cable includes at least one of the following: 1400MHz -2690MHz, 3300MHz -3800MHz, 4800MHz -5000MHz or 6425MHz -7125MHz.

7. The cable according to claim 6, characterized in that, The length of the metal unit (121) is greater than or equal to 10 mm and less than or equal to 40 mm, and the thickness is greater than or equal to 5 mm and less than or equal to 30 mm. When the number of the medium units (122) is equal to the number of the metal units (121), the length of the medium unit (122) is greater than or equal to 10 mm and less than or equal to 40 mm, and the thickness is greater than or equal to 5 mm and less than or equal to 30 mm.

8. The cable according to claim 1 or 2, characterized in that, At least two of the plurality of metal units (121) are identical; When the number of the medium units (122) is equal to the number of the metal units (121), at least two of the medium units (122) are identical.

9. The cable according to claim 1 or 2, characterized in that, The cable includes a coaxial cable.

10. The cable according to claim 1 or 2, characterized in that, The plurality of metal units (121) are located on the same layer.

11. A communication system, characterized in that, include: The cable and the first antenna array as described in any one of claims 1 to 10, wherein the cable is located on the radiation path of the first antenna array.

12. The communication system according to claim 11, characterized in that, The communication system further includes: a second antenna array, wherein the first antenna array includes a first receiving antenna module, a low-noise amplification module, and a power supply module, and the second antenna array includes a second receiving antenna module.

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