CN114709581A - Electromagnetic wave transmission method, transmission line and terminal device - Google Patents
Electromagnetic wave transmission method, transmission line and terminal device Download PDFInfo
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- CN114709581A CN114709581A CN202210609550.8A CN202210609550A CN114709581A CN 114709581 A CN114709581 A CN 114709581A CN 202210609550 A CN202210609550 A CN 202210609550A CN 114709581 A CN114709581 A CN 114709581A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/10—Wire waveguides, i.e. with a single solid longitudinal conductor
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Abstract
The application provides an electromagnetic wave transmission method, a transmission line and a terminal device, wherein the electromagnetic wave transmission method comprises the following steps: introducing an electromagnetic wave signal to be transmitted into a first region on a metal layer of a transmission line; modulating shape and size electromagnetic wave signals through a plurality of modulation units with hollow areas arranged in the shape and size first area to obtain modulated electromagnetic wave signals; and leading out the electromagnetic wave signal after the shape and the size are modulated from the shape and the size first area so as to transmit the electromagnetic wave signal. In the electromagnetic wave transmission method, the transmission line and the terminal device, the second region guides the external electromagnetic wave signal into the first region, the modulation units in the first region are equivalent to electrical parameters corresponding to the shapes and the sizes of the modulation units, and then the modulation units in the periodic distribution modulate the electromagnetic wave signal, so that the modulation transmission of the electromagnetic wave signal by the second region is realized.
Description
Technical Field
The present application relates to the field of transmission technologies, and in particular, to an electromagnetic wave transmission method, a transmission line, and a terminal device.
Background
With the development of communication technology, the requirement for electromagnetic wave transmission is higher and higher, and due to the requirements of various application scenarios, the traditional electromagnetic wave transmission structure with two metal layers cannot meet the requirement.
Disclosure of Invention
The present application is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, an object of the present application is to provide an electromagnetic wave transmission method, a transmission line, and a terminal device.
To achieve the above object, a first aspect of the present application provides an electromagnetic wave transmission method, including: introducing an electromagnetic wave signal to be transmitted into a first region on a metal layer based on a transmission line; modulating the electromagnetic wave signal through a plurality of modulation units with hollow areas arranged in the first area to obtain a modulated electromagnetic wave signal; deriving the modulated electromagnetic wave signal from the first region to transmit the electromagnetic wave signal; the metal layer is arranged on the non-metal layer of the transmission line, and the plurality of modulation units are periodically distributed along the length direction of the metal layer and are sequentially connected.
Optionally, the step of modulating the electromagnetic wave signal by a plurality of modulation units provided with hollow areas in the first area to obtain a modulated electromagnetic wave signal includes: determining the shape and the size of the modulation unit through the hollow-out area; the electrical parameters are equivalent through the shape and the size of the modulation unit; and modulating the electromagnetic wave signal through the electrical parameter to obtain a modulated electromagnetic wave signal.
Optionally, the modulation units with different shapes and sizes correspond to different electrical parameters, and the different electrical parameters enable the modulated electromagnetic wave signals to work in different signal frequency bands.
Optionally, the step of guiding the electromagnetic wave signal to be transmitted to the first region on the metal layer based on the transmission line includes: introducing an electromagnetic wave signal to be transmitted into the first region through the second region of the metal layer; and/or said deriving said modulated electromagnetic wave signal from said first region comprises: deriving the modulated electromagnetic wave signal from the first region by the second region of the metal layer; wherein the first region is connected to the second region.
Optionally, the step of guiding the electromagnetic wave signal to be transmitted to the first region on the metal layer based on the transmission line includes: introducing an electromagnetic wave signal to be transmitted into the first region through a third portion of the second region; said deriving the modulated electromagnetic wave signal from the first region comprises: deriving the modulated electromagnetic wave signal from the first region by a fourth portion of the second region; wherein the third portion is connected to one end of the first region, and the fourth portion is connected to the other end of the first region.
A second aspect of the present application provides a transmission line comprising: a non-metal layer; a metal layer disposed on the non-metal layer, the metal layer comprising: a first region, the first region comprising: the modulation units are periodically distributed along the length direction of the metal layer and are sequentially connected, and electromagnetic wave signals are led in from one end of the first area and led out from the other end of the first area along the length direction of the metal layer so as to modulate and transmit the performance of the electromagnetic wave signals.
Optionally, the hollow area includes: a first hollow-out groove; the modulation unit includes: a first portion within which the first hollowed out groove is disposed, the first portion comprising: keep away from the first outer border of first fretwork groove with be close to the first inner border of first fretwork groove, first outer border is the rectangle, the long limit or the minor face of first outer border with the length direction of metal level is parallel, the center of first inner border with the center of first outer border is in orthographic projection on the non-metallic layer overlaps.
Optionally, the first inner boundary is rectangular, and a long side or a short side of the first inner boundary is parallel to the length direction of the metal layer; the modulation unit further includes: a second portion disposed within the first portion.
Optionally, the hollowed-out area further includes: a second hollowed-out groove disposed within the second portion; the second portion includes: keep away from the second outer border of second fretwork groove with be close to the second inner border of second fretwork groove, the second outer border with the second inner border is the rhombus, the second outer border with the long diagonal line or the short diagonal line of second inner border with the length direction of metal level is parallel, the center of second outer border the center of second inner border with the center of first inner border is in orthographic projection on the non-metallic layer overlaps, the angle of second outer border respectively with the length of side middle part of first inner border links to each other.
Optionally, the second portion is rectangular, a long side or a short side of the second portion is parallel to the length direction of the metal layer, and the center of the second portion and the center of the first inner boundary overlap in an orthographic projection on the nonmetal layer.
Optionally, the first inner boundary is an ellipse, and a major axis or a minor axis of the first inner boundary is parallel to the length direction of the metal layer.
Optionally, the metal layer further includes: a second region, the first region being connected to the second region, the second region being configured to direct electromagnetic wave signals into and/or out of the first region.
Optionally, the second area includes: a third portion connected to one end of the first region; a fourth portion connected to the other end of the first region.
Optionally, the width of the first region is equal to the width of the second region.
Optionally, the side surface of the non-metal layer is a curved surface or a plane, and the metal layer is disposed on the curved surface or the plane.
A third aspect of the present application provides a terminal device, comprising: a transmission line as provided in the second aspect of the present application.
The technical scheme provided by the application can comprise the following beneficial effects:
the modulation unit in the first area forms different shapes and sizes according to different hollowed-out areas, so that when the electromagnetic wave signals pass through the modulation unit, electrical parameters corresponding to the shapes and sizes of the modulation unit are equivalent, and the modulation units in periodic distribution modulate the electromagnetic wave signals, so that the modulation transmission of the electromagnetic wave signals by the second area is realized; through the arrangement of the non-metal layer and the metal layer, a transmission line structure of a single metal layer is formed, the non-metal layer is only used for supporting the metal layer, and the area of the non-metal layer relative to the floor layer is extremely small, so that the occupied space of the transmission line is greatly reduced, the interference problem between adjacent transmission lines in a narrow space is reduced, the performance of the transmission line is improved, the flexible wiring design of the transmission line is easy to realize, and the limitation on the application of the transmission line is reduced;
meanwhile, the transmission line structure of the single metal layer has higher shape consistency and continuity of resistance, is not easily influenced by structures such as curved surfaces and the like, and effectively ensures high-performance transmission of the transmission line;
moreover, the transmission line structure of the single metal layer has less metal and smaller volume, is easy to process and is beneficial to the design of miniaturization and integration of terminal equipment.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic flowchart of an electromagnetic wave transmission method according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a transmission line according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a modulation unit in a transmission line according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a modulation unit in a transmission line according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a modulation unit in a transmission line according to an embodiment of the present application;
FIG. 6 is a graph of a simulation of a transmission line according to an embodiment of the present application;
as shown in the figure:
1. a non-metal layer;
2. a metal layer;
21. a first region, 211, a modulation unit, 2111, a first portion, 21111, a first outer boundary, 21112, a first inner boundary, 2112, a second portion, 21121, a second outer boundary, 21122, a second inner boundary, 212, a hollowed-out region, 2121, a first hollowed-out groove, 2122, a second hollowed-out groove;
22. a second region 221, a third portion 222, a fourth portion.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. On the contrary, the embodiments of the application include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the related art, the transmission line includes a signal layer and a floor layer, both of which are made of a metal material, such as: microstrip line, coaxial line, stripline etc. owing to bilayer structure's design for the space that the transmission line occupy is great, not only causes the interference problem between the adjacent transmission line in the narrow and small space, influences the performance of transmission line, and the design is walked the line in a flexible way that is difficult for realizing the transmission line moreover, leads to the application of transmission line to receive the restriction, simultaneously, because the area on ground floor layer is great relatively, leads to bilayer structure's transmission line to be difficult to maintain continuous transmission impedance in curved surface structure, leads to the performance of transmission line relatively poor.
Therefore, to solve the above technical problem, as shown in fig. 1, an embodiment of the present application provides an electromagnetic wave transmission method, including:
s1: introducing an electromagnetic wave signal to be transmitted into a first region 21 on the metal layer 2 of the transmission line;
s2: modulating the electromagnetic wave signal by a plurality of modulation units 211 provided with hollow areas 212 in the first area 21 to obtain a modulated electromagnetic wave signal;
s3: deriving the modulated electromagnetic wave signal from the first region 21 to transmit the electromagnetic wave signal;
the metal layer 2 is disposed on the non-metal layer 1 of the transmission line, and the plurality of modulation units 211 are periodically distributed along the length direction of the metal layer 2 and are sequentially connected.
It can be understood that, after the electromagnetic wave signal is introduced into the first region 21, the modulation units 211 in the first region 21 are formed into different shapes and sizes according to the different hollow-out regions 212, so that when the electromagnetic wave signal passes through the modulation units 211, electrical parameters corresponding to the shapes and sizes of the modulation units are equivalent, and further, the plurality of modulation units 211 distributed periodically modulate the electromagnetic wave signal, thereby realizing the modulation transmission of the electromagnetic wave signal by the second region 22. Wherein the electrical parameter may be capacitance and/or inductance.
Through the arrangement of the nonmetal layer 1 and the metal layer 2, a transmission line structure of a single metal layer is formed, the nonmetal layer 1 is only used for supporting the metal layer 2, and the area of the nonmetal layer 1 relative to the floor layer is extremely small, so that the occupied space of the transmission line is greatly reduced, the interference problem between adjacent transmission lines in a narrow space is reduced, the performance of the transmission line is improved, the flexible wiring design of the transmission line is easy to realize, and the limitation on the application of the transmission line is reduced; meanwhile, the transmission line structure of the single metal layer has higher shape consistency and continuity of resistance, is not easily influenced by structures such as curved surfaces and the like, and effectively ensures high-performance transmission of the transmission line; moreover, the transmission line structure of the single metal layer has less metal and smaller volume, is easy to process and is beneficial to the design of miniaturization and integration of terminal equipment.
The material of the metal layer 2 is a metal, for example: copper, silver, gold, etc., and the material of the non-metal layer 1 is non-metal, such as: plastic, ceramic, human skin, etc., and the metal layer 2 may be printed on the non-metal layer 1. In some embodiments, the metal layer 2 is made of copper and the non-metal layer 1 is made of Rogers 3003.
The specific structure of the plurality of modulation units 211 periodically distributed may be set according to actual needs, for example: the plurality of modulation units 211 are arranged in 3 columns, each column having 36 modulation units 211; the plurality of modulation units 211 are arranged in 2 columns, each column having 36 modulation units 211; the plurality of modulation units 211 are arranged in 2 columns, each having 20 modulation units 211, and the like. Among the plurality of modulation units 211, the modulation units 211 in the width direction of the metal layer 2 are arranged in columns, and the modulation units 211 in each column are arranged along the length direction of the metal layer 2.
The modulation units 211 with different shapes and sizes have different equivalent electrical parameters, and the electromagnetic wave signals have different transmission performances such as cut-off frequency and field distribution due to the different electrical parameters, so that the transmission line can be applied in different scenes by setting the shapes and sizes of the modulation units 211.
Generally, after the shape of the modulation unit 211 is determined, the larger the area of the modulation unit 211, the lower the cutoff frequency of the transmission line, and the narrower the transmission bandwidth.
The shape of the modulation unit 211 does not have a strict correspondence with the properties of the transmission line, such as cut-off frequency, field distribution, etc., and the shape of the modulation unit 211 can be preset according to actual needs and then verified through simulation of dispersion characteristics to finally determine the shape of the modulation unit 211.
The electrical parameter refers to a parameter value formed by connecting a plurality of inductors and capacitors, wherein the electrical parameter may be a parameter value formed by connecting a plurality of inductors, a parameter value formed by connecting a plurality of capacitors, a parameter value formed by connecting a plurality of inductors and capacitors, a connection may be a series connection, a parallel connection, or a combination of the series connection and the parallel connection.
The transmission line may be used to transmit a TM (Transverse-Magnetic) mode.
In some embodiments, in step S2, modulating the electromagnetic wave signal by a plurality of modulation units 211 in the first region 21, where the hollow-out regions 212 are disposed, and obtaining the modulated electromagnetic wave signal includes:
determining the shape and size of the modulation unit 211 through the hollowed-out region 212;
the electrical parameters are equivalent by the shape and size of the modulation unit 211;
and modulating the electromagnetic wave signal through the electrical parameter to obtain the modulated electromagnetic wave signal.
It can be understood that, as the larger the size of the modulation unit 211 is, the larger the area of the modulation unit 211 is, the size of the modulation unit 211 has a strict corresponding relationship with the performance of the transmission line, such as the cutoff frequency, the field distribution, etc., and as the shape of the modulation unit 211 does not have a strict corresponding relationship with the performance of the transmission line, after the shape of the modulation unit 211 is determined, the electrical parameters are equivalent to the shape and the size of the modulation unit 211, and then the electromagnetic wave signal is modulated by the electrical parameters, so as to obtain the electromagnetic wave signal working in the corresponding frequency band range.
As shown in fig. 3, 4 and 5, in some embodiments, the modulation units 211 with different shapes and sizes correspond to different electrical parameters, and the different electrical parameters enable the modulated electromagnetic wave signal to operate in different signal frequency bands.
As shown in fig. 2, in some embodiments, the step S1 of introducing the electromagnetic wave signal to be transmitted into the first region 21 on the metal layer 2 based on the transmission line includes: directing the electromagnetic wave signal to be transmitted into the first region 21 through the second region 22 of the metal layer 2; and/or in step S3, deriving the modulated electromagnetic wave signal from the first region 21 includes: deriving the modulated electromagnetic wave signal from the first region 21 through the second region 22 of the metal layer 2;
wherein the first region 21 is connected to the second region 22, the modulation unit 211 is disposed in the first region 21, the modulation unit 211 is not disposed in the second region 22, and the first region 21 and the second region 22 are combined to form the entire metal layer 2.
It can be understood that the second region 22 is arranged to facilitate the connection of the first region 21 with other types of transmission lines, so that the transmission lines have stronger universality and wider application scenarios.
The second region 22 may be used only for introducing the electromagnetic wave signal into the first region 21, only for leading the electromagnetic wave signal out of the first region 21, and may be used for introducing the electromagnetic wave signal into the first region 21 and leading the electromagnetic wave signal out of the first region 21.
As shown in fig. 2, in some embodiments, the step S1 of introducing the electromagnetic wave signal to be transmitted into the first region 21 on the metal layer 2 based on the transmission line includes: directing the electromagnetic wave signal to be transmitted into the first region 21 through the third portion 221 of the second region 22; in step S3, deriving the modulated electromagnetic wave signal from the first region 21 includes: deriving the modulated electromagnetic wave signal from the first area 21 by the fourth portion 222 of the second area 22;
wherein the third portion 221 is connected to one end of the first region 21 and the fourth portion 222 is connected to the other end of the first region 21.
It can be understood that the third portion 221 serves as an input end of the first region 21, and the fourth portion 222 serves as an output end of the first region 21, so that the transmission line can be connected to other types of transmission lines conveniently, and the third portion 221 and the fourth portion 222 are arranged, so that the universality of the transmission line is stronger, and the application scenarios are wider.
As shown in fig. 2, an embodiment of the present application further provides a transmission line, which includes a non-metal layer 1 and a metal layer 2, the metal layer 2 is disposed on a side surface of the non-metal layer 1, the metal layer 2 includes a first region 21, the first region 21 includes a plurality of modulation units 211, a hollow region 212 is disposed on the modulation units 211, the plurality of modulation units 211 are periodically distributed along a length direction of the metal layer 2 and are sequentially connected, an electromagnetic wave signal is introduced from one end of the first region 21 and is led out from the other end of the first region 21 along the length direction of the metal layer 2, so as to modulate and transmit the electromagnetic wave signal.
It can be understood that, after the electromagnetic wave signal is introduced into the first region 21, the modulation units 211 in the first region 21 are formed into different shapes and sizes according to the different hollow-out regions 212, so that when the electromagnetic wave signal passes through the modulation units 211, electrical parameters corresponding to the shapes and sizes of the modulation units are equivalent, and further, the plurality of modulation units 211 distributed periodically modulate the electromagnetic wave signal, thereby realizing the modulation transmission of the electromagnetic wave signal by the first region 21.
Through the arrangement of the nonmetal layer 1 and the metal layer 2, a transmission line structure of a single metal layer is formed, the nonmetal layer 1 is only used for supporting the metal layer 2, and the area of the nonmetal layer 1 relative to the floor layer is extremely small, so that the occupied space of the transmission line is greatly reduced, the interference problem between adjacent transmission lines in a narrow space is reduced, the performance of the transmission line is improved, the flexible wiring design of the transmission line is easy to realize, and the limitation on the application of the transmission line is reduced; meanwhile, the transmission line structure of the single metal layer has higher shape consistency and continuity of resistance, is not easily influenced by structures such as a curved surface and the like, and effectively ensures high-performance transmission of the transmission line; moreover, the transmission line structure of the single metal layer has less metal and smaller volume, is easy to process and is beneficial to the design of miniaturization and integration of terminal equipment.
The material of the metal layer 2 is a metal, for example: copper, silver, gold, etc., the material of the non-metal layer 1 is non-metal, such as: plastic, ceramic, human skin, etc., and the metal layer 2 may be printed on the non-metal layer 1. In some embodiments, the metal layer 2 is made of copper and the non-metal layer 1 is made of Rogers 3003.
The metal layer 2 is disposed on one side of the non-metal layer 1 having the largest area.
The specific structure of the plurality of modulation units 211 periodically distributed may be set according to actual needs, for example: the plurality of modulation units 211 are arranged in 3 columns, each column having 36 modulation units 211; the plurality of modulation units 211 are arranged in 2 columns, each column having 36 modulation units 211; the plurality of modulation units 211 are arranged in 2 columns, each having 20 modulation units 211, and the like. Among the plurality of modulation units 211, the modulation units 211 in each column are distributed along the length direction of the metal layer 2.
The modulation units 211 with different shapes and sizes have different equivalent electrical parameters, and the electromagnetic wave signals have different transmission performances such as cut-off frequency and field distribution due to the different electrical parameters, so that the transmission line can be applied in different scenes by setting the shapes and sizes of the modulation units 211.
Generally, the larger the area of the modulation unit 211, the lower the cutoff frequency of the transmission line, and the narrower the transmission bandwidth.
The shape of the modulation unit 211 does not have a strict correspondence with the properties of the transmission line, such as cut-off frequency, field distribution, etc., and the shape of the modulation unit 211 can be preset according to actual needs and then verified through simulation of dispersion characteristics to finally determine the shape of the modulation unit 211.
The electrical parameter refers to a parameter value formed by connecting a plurality of inductors and capacitors, wherein the electrical parameter may be a parameter value formed by connecting a plurality of inductors, a parameter value formed by connecting a plurality of capacitors, a parameter value formed by connecting a plurality of inductors and capacitors, a connection may be a series connection, a parallel connection, or a combination of the series connection and the parallel connection.
The transmission line may be used to transmit a TM (Transverse-Magnetic) mode.
As shown in fig. 3, 4 and 5, in some embodiments, the hollow area 212 includes a first hollow 2121, the modulation unit 211 includes a first portion 2111, the first hollow 2121 is disposed in the first portion 2111, the first portion 2111 includes a first outer boundary 21111 far from the first hollow 2121 and a first inner boundary 21112 close to the first hollow 2121, the first outer boundary 21111 is rectangular, a long side or a short side of the first outer boundary 21111 is parallel to the length direction of the metal layer 2, and a front projection of a center of the first inner boundary 21112 and a center of the first outer boundary 21111 on the non-metal layer 1 overlap. It will be appreciated that fig. 3, 4 and 5 show plan views, and that in a transmission line, the first inner boundary 21112 and the first outer boundary 21111 are rectangular since the metal layer 2 may be a rectangular parallelepiped, but is thin.
Meanwhile, the first outer boundary 21111 is set to be rectangular, so that not only is the periodic distribution of the plurality of modulation units 211 facilitated, but also the modulation units 211 are enabled to be equivalent to corresponding first electrical parameters, and therefore the modulated electromagnetic wave signals work in a first frequency band range, and the use requirements are met.
It should be noted that the rectangle has two sets of sides with unequal lengths, and the longer side is the longer side with the greater relative length, and the shorter side with the smaller relative length, and the longer side of the first outer boundary 21111 may be set to be parallel to the length direction of the metal layer 2, or the shorter side of the first outer boundary 21111 may be set to be parallel to the length direction of the metal layer 2; the rectangle has two diagonals, the intersection of the diagonals is the center of the rectangle, i.e., the diagonal intersection of the first inner boundary 21112 overlaps the orthographic projection of the non-metallic layer 1 coinciding with the diagonal intersection of the first outer boundary 21111.
According to actual needs, the long side of the first outer boundary 21111 may be parallel to the longitudinal direction of the metal layer 2, or the short side of the first outer boundary 21111 may be parallel to the longitudinal direction of the metal layer 2.
The orthographic projection refers to an orthographic projection on the side of the non-metal layer 1 on which the metal layer 1 is disposed.
The size of the first portion 2111 is not limited, and in some embodiments, the length b of the long side and the length a of the short side of the first outer boundary 21111 can be 3mm and 2mm, 3.5mm and 2.3mm, 2.5mm and 1.8mm, etc. according to the actual requirement.
As shown in fig. 3 and 4, in some embodiments, the first inner boundary 21112 has a rectangular shape, a long side or a short side of the first inner boundary 21112 is parallel to the length direction of the metal layer 2, and the modulation unit 211 further includes a second portion 2112, the second portion 2112 being disposed within the first portion 2111.
It can be understood that, when the electromagnetic wave passes through the modulation unit 211, the second portion 2112 and the first portion 2111 cooperate to obtain a corresponding second electrical parameter, so that the modulated electromagnetic wave signal operates in the second frequency band range, and the use requirement is met.
The side of the first inner boundary 21112 having a relatively large length may be provided parallel to the longitudinal direction of the metal layer 2, or the side of the first inner boundary 21112 having a relatively large length may be provided parallel to the longitudinal direction of the metal layer 2.
The size of the first portion 2111 is not limited, and in some embodiments, the distance c between the first inner boundary 21112 and the first outer boundary 21111 can be 0.1mm, 0.2mm, 0.05mm, etc., as desired.
As shown in fig. 3, in some embodiments, the hollow-out region 212 further includes a second hollow-out slot 2122, the second hollow-out slot 2122 is disposed in the second portion 2112, the second portion 2112 includes a second outer boundary 21121 far away from the second hollow-out slot 2122 and a second inner boundary 21122 close to the second hollow-out slot 2122, the second outer boundary 21121 and the second inner boundary 21122 are both diamond-shaped, a long diagonal line or a short diagonal line of the second outer boundary 21121 and the second inner boundary 21122 is parallel to a length direction of the metal layer 2, a center of the second outer boundary 21121, a center of the second inner boundary 21122, and a center of the first inner boundary 21112 respectively overlap with a positive projection on the non-metal layer 1, and corners of the second outer boundary 21121 are respectively connected to a middle of a side of the first inner boundary 21112. Thus, the second hollow-out groove 2122 having a diamond shape and the first hollow-out groove 2121 partitioned into four right-angled triangles by the second portion 2112 are formed in the modulation unit 211.
It can be understood that, when the electromagnetic wave passes through the modulation unit 211, the second hollow-out slot 2122 is provided, and the second portion 2112 having the diamond structure and the first portion 2111 having the rectangular structure cooperate to generate a corresponding third electrical parameter, so that the modulated electromagnetic wave signal operates in a third frequency band, and the use requirement is met.
It should be noted that the rhombus has two diagonal lines with unequal lengths, the longer diagonal line with the larger relative length is the longer diagonal line, the shorter diagonal line with the smaller relative length is the shorter diagonal line, and the intersection point of the longer diagonal line and the shorter diagonal line is the center of the rhombus, that is, the orthogonal projections of the intersection point of the longer diagonal line and the shorter diagonal line of the second outer boundary 21121, the intersection point of the longer diagonal line and the shorter diagonal line of the second inner boundary 21122, and the intersection point of the longer diagonal line and the shorter diagonal line of the second inner boundary 21122 on the nonmetal layer 1 overlap.
According to actual needs, the long diagonal lines of the second outer boundary 21121 and the second inner boundary 21122 may be set to be parallel to the longitudinal direction of the metal layer 2, and the short diagonal lines of the second outer boundary 21121 and the second inner boundary 21122 may be set to be parallel to the longitudinal direction of the metal layer 2.
The distance between the first outer boundary 21111 and the first inner boundary 21112 is inversely proportional to the equivalent inductance of the first portion 2111, that is, the greater the distance between the first outer boundary 21111 and the first inner boundary 21112, the smaller the equivalent inductance of the first portion 2111 is, and the smaller the distance between the first outer boundary 21111 and the first inner boundary 21112 is, the larger the equivalent inductance of the first portion 2111 is;
the distance between the second outer boundary 21121 and the second inner boundary 21122 is inversely proportional to the equivalent inductance of the second portion 2112, i.e., the larger the distance between the second outer boundary 21121 and the second inner boundary 21122, the smaller the equivalent inductance of the second portion 2112, and the smaller the distance between the second outer boundary 21121 and the second inner boundary 21122, the larger the equivalent inductance of the second portion 2112.
Meanwhile, the distance between the second outer boundary 21121 and the first inner boundary 21112 is inversely proportional to the equivalent capacitance of the first portion 2111, i.e., the smaller the distance between the second outer boundary 21121 and the first inner boundary 21112, the larger the equivalent capacitance of the first portion 2111, and the larger the distance between the second outer boundary 21121 and the first inner boundary 21112, the smaller the equivalent capacitance of the first portion 2111;
the length of the long side or the length of the short side of the second inner boundary 21122 and the equivalent capacitance of the second portion 2112 are in an inverse proportional relationship, that is, the smaller the length of the long side or the short side of the second inner boundary 21122 is, the larger the equivalent capacitance of the second portion 2112 is, the larger the length of the long side or the short side of the second inner boundary 21122 is, and the smaller the equivalent capacitance of the second portion 2112 is.
The size of the second portion 2112 is not limited, and in some embodiments, the long diagonal length w of the diamond shape can be 2.4mm, 2.5mm, 2.2mm, etc., and the corner of the second outer boundary 21121 that connects to the middle of the short side of the first inner boundary 21112 can be 0.83mm, 0.8mm, 0.87mm, etc., from the long side of the first inner boundary 21112, as desired.
As shown in fig. 4, in some embodiments, the second portion 2112 has a rectangular shape, the long side or the short side of the second portion 2112 is parallel to the length direction of the metal layer 2, and the orthographic projections of the center of the second portion 2112 and the center of the first inner boundary 21112 on the nonmetal layer 1 overlap, respectively.
Thereby, the first hollow groove 2121 partitioned into a "square" shape by the second portion 2112 is formed on the modulation unit 211.
It can be understood that, when the electromagnetic wave passes through the modulation unit 211, the second portion 2112 of the rectangular structure and the first portion 2111 of the rectangular structure cooperate to generate a corresponding fourth electrical parameter, so that the modulated electromagnetic wave signal operates in a fourth frequency band range, and the usage requirement is met.
The size of the second portion 2112 is not limited, and in some embodiments, the length x of the long side and the length y of the short side of the second portion 2112 can be 2mm and 1mm, 2.5mm and 1.2mm, 1.8mm and 0.7mm, etc., respectively, and the distance z between the second portion 2112 and the first inner boundary 21112 can be 0.4mm, 0.5mm, 0.7mm, etc., according to actual needs.
As shown in fig. 5, in some embodiments, first inner boundary 21112 is elliptical, and the major or minor axis of first inner boundary 21112 is parallel to the length direction of metal layer 2.
It can be understood that, when the electromagnetic wave passes through the modulation unit 211, the first portion 2111 with a rectangular outer portion and an elliptical inner portion is equivalent to a corresponding fifth electrical parameter, so that the modulated electromagnetic wave signal operates in a fifth frequency band range, thereby meeting the use requirement.
The length of the long side or the length of the short side of the first inner boundary 21112 is in inverse proportion to the equivalent capacitance of the first portion 2111, that is, the smaller the length of the long side or the short side of the first inner boundary 21112 is, the larger the equivalent capacitance of the first portion 2111 is, and the larger the length of the long side or the short side of the first inner boundary 21112 is, the smaller the equivalent capacitance of the first portion 2111 is.
The size of the first portion 2111 is not limited, and in some embodiments, the major-axis length m and the minor-axis length n of the first inner boundary 21112 can be 1.4mm and 0.9mm, 1.5mm and 1m, 1.2mm and 0.7mm, respectively, etc., as desired.
As shown in fig. 6, the abscissa in fig. 6 is the operating frequency of the electromagnetic wave signal modulated by the transmission line and is in GHz, and the ordinate is the insertion loss of the transmission line and is in dB.
As can be seen from fig. 6, the structure in which the second portion 2112 of the second hollow-out groove 2122 and having the diamond structure is matched with the first portion 2111 of the rectangular structure is provided, and the cutoff frequency of the transmission line adopting the structure is 34 GHz; a structure in which the second portion 2112 of the rectangular structure is fitted to the first portion 2111 of the rectangular structure, and the cutoff frequency of the transmission line when the structure is adopted is 25 GHz; a structure of the first portion 2111 having a rectangular shape outside and an elliptical shape inside, and a cutoff frequency when the transmission line adopts this structure is 30 GHz. The transmission lines with the three structures have wide working frequency, and the insertion loss is more than-2 dB in the wide working frequency, so that the transmission lines have good transmission characteristics.
As shown in fig. 2, in some embodiments, the metal layer 2 further includes a second region 22, the first region 21 is connected to the second region 22, and the second region 22 is used for guiding the electromagnetic wave signal into the first region 21 or guiding the electromagnetic wave signal out of the first region 21.
It can be understood that the second region 22 is arranged to facilitate the connection of the first region 21 with other types of transmission lines, so that the transmission lines have stronger universality and wider application scenarios.
The second region 22 may be used only for introducing the electromagnetic wave signal into the first region 21, only for leading the electromagnetic wave signal out of the first region 21, and may be used for introducing the electromagnetic wave signal into the first region 21 and leading the electromagnetic wave signal out of the first region 21.
As shown in fig. 2, in some embodiments, the second region 22 includes a third portion 221 and a fourth portion 222, the third portion 221 being connected to one end of the first region 21, and the fourth portion 222 being connected to the other end of the first region 21.
It can be understood that the third portion 221 and the fourth portion 222 are respectively used as an input end and an output end of the first region 21, which facilitates the connection of the transmission line with other types of transmission lines, and the third portion 221 and the fourth portion 222 are arranged to make the transmission line have stronger universality and wider application scenarios.
As shown in fig. 2, in some embodiments, the width of the first region 21 is equal to the width of the second region 22.
It can be understood that the width of the first region 21 is consistent with the width of the second region 22, which can ensure the continuity of the electromagnetic wave signal when the electromagnetic wave signal propagates between the first region 21 and the second region 22, thereby reducing the radiation loss when the electromagnetic wave propagates on the transmission line.
In some embodiments, the side of the non-metal layer 1 is a curved surface or a flat surface, and the metal layer 2 is disposed on the curved surface or the flat surface.
It can be understood that the transmission line structure of the single metal layer has higher shape consistency and continuity of resistance, and the transmission line can still maintain high-performance transmission when the metal layer 2 is arranged on a curved surface or a plane, thereby ensuring the application of the transmission line in different scenes.
It should be noted that, according to the application scenario of the transmission line, the nonmetal layer 1 may be a curved surface, and the nonmetal layer 1 may also be a plane.
An embodiment of the present application further provides a terminal device, including: such as the transmission line of the embodiments of the present application.
It can be understood that, after the electromagnetic wave signal is introduced into the first region 21, the modulation units 211 in the first region 21 are formed into different shapes and sizes according to the different hollow-out regions 212, so that when the electromagnetic wave signal passes through the modulation units 211, electrical parameters corresponding to the shapes and sizes of the modulation units are equivalent, and further, the plurality of modulation units 211 distributed periodically modulate the electromagnetic wave signal, thereby realizing the modulation transmission of the electromagnetic wave signal by the second region 22.
Through the arrangement of the nonmetal layer 1 and the metal layer 2, a transmission line structure of a single metal layer is formed, the nonmetal layer 1 is only used for supporting the metal layer 2, and the area of the nonmetal layer 1 relative to the floor layer is extremely small, so that the occupied space of the transmission line is greatly reduced, the interference problem between adjacent transmission lines in a narrow space is reduced, the performance of the transmission line is improved, the flexible wiring design of the transmission line is easy to realize, and the limitation on the application of the transmission line is reduced; meanwhile, the transmission line structure of the single metal layer has higher shape consistency and continuity of resistance, is not easily influenced by structures such as a curved surface and the like, and effectively ensures high-performance transmission of the transmission line; moreover, the transmission line structure of the single metal layer has less metal and smaller volume, is easy to process and is beneficial to the design of miniaturization and integration of terminal equipment.
It should be noted that the terminal device may be a mobile phone, a tablet computer, a wearable device, a vehicle-mounted terminal, or the like.
It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, unless otherwise specified, "a plurality" means two or more; any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (16)
1. An electromagnetic wave transmission method, comprising:
introducing an electromagnetic wave signal to be transmitted into a first area on a metal layer of a transmission line;
modulating the electromagnetic wave signal through a plurality of modulation units with hollow areas arranged in the first area to obtain a modulated electromagnetic wave signal;
deriving the modulated electromagnetic wave signal from the first region to transmit the electromagnetic wave signal;
the metal layer is arranged on the non-metal layer of the transmission line, and the plurality of modulation units are periodically distributed along the length direction of the metal layer and are sequentially connected.
2. The electromagnetic wave transmission method according to claim 1, wherein the step of modulating the electromagnetic wave signal by a plurality of modulation units provided with hollow areas in the first area to obtain the modulated electromagnetic wave signal comprises:
determining the shape and the size of the modulation unit through the hollow-out area;
the electrical parameters are equivalent through the shape and the size of the modulation unit;
and modulating the electromagnetic wave signal through the electrical parameter to obtain a modulated electromagnetic wave signal.
3. The electromagnetic wave transmission method according to claim 2,
the modulation units with different shapes and sizes correspond to different electrical parameters, and the different electrical parameters enable the modulated electromagnetic wave signals to work in different signal frequency bands.
4. The electromagnetic wave transmission method according to any one of claims 1 to 3,
the step of guiding the electromagnetic wave signal to be transmitted into the first region on the metal layer based on the transmission line comprises: introducing an electromagnetic wave signal to be transmitted into the first region through the second region of the metal layer;
and/or
Said deriving the modulated electromagnetic wave signal from the first region comprises: deriving the modulated electromagnetic wave signal from the first region through a second region of the metal layer;
wherein the first region is connected to the second region.
5. The electromagnetic wave transmission method according to claim 4,
the step of guiding the electromagnetic wave signal to be transmitted into the first region on the metal layer based on the transmission line comprises: introducing an electromagnetic wave signal to be transmitted into the first region through a third portion of the second region;
said deriving the modulated electromagnetic wave signal from the first region comprises: deriving the modulated electromagnetic wave signal from the first region by a fourth portion of the second region;
wherein the third portion is connected to one end of the first region, and the fourth portion is connected to the other end of the first region.
6. A transmission line, comprising:
a non-metal layer;
a metal layer disposed on the non-metal layer, the metal layer comprising: a first region, the first region comprising: the modulation units are periodically distributed along the length direction of the metal layer and are sequentially connected, and electromagnetic wave signals are led in from one end of the first area and led out from the other end of the first area along the length direction of the metal layer so as to be modulated and transmitted.
7. The transmission line according to claim 6,
the hollowed-out area comprises: a first hollow-out groove;
the modulation unit includes: a first portion within which the first hollowed out groove is disposed, the first portion comprising: keep away from the first outer border of first fretwork groove with be close to the first inner border of first fretwork groove, first outer border is the rectangle, the long limit or the minor face of first outer border with the length direction of metal level is parallel, the center of first inner border with the center of first outer border is in orthographic projection on the non-metallic layer overlaps.
8. The transmission line according to claim 7,
the first inner boundary is rectangular, and the long side or the short side of the first inner boundary is parallel to the length direction of the metal layer;
the modulation unit further includes: a second portion disposed within the first portion.
9. The transmission line according to claim 8,
the hollowed-out area further comprises: a second hollowed-out groove disposed within the second portion;
the second portion includes: keep away from the second outer border of second fretwork groove with be close to the second inner border of second fretwork groove, the second outer border with the second inner border is the rhombus, the second outer border with the long diagonal line or the short diagonal line of the second inner border with the length direction of metal level is parallel, the center of the second outer border the center of the second inner border with the center of first inner border is in orthographic projection on the non-metallic layer overlaps, the angle of the second outer border respectively with the length of side middle part of first inner border links to each other.
10. The transmission line according to claim 8, wherein the second portion has a rectangular shape, a long side or a short side of the second portion is parallel to a length direction of the metal layer, and an orthogonal projection of a center of the second portion and a center of the first inner boundary on the non-metal layer overlaps.
11. The transmission line of claim 7, wherein the first inner boundary is elliptical and the major or minor axis of the first inner boundary is parallel to the length direction of the metal layer.
12. The transmission line according to any one of claims 6 to 11, characterized in that the metal layer further comprises:
a second region, the first region being connected to the second region, the second region being configured to direct electromagnetic wave signals into and/or out of the first region.
13. The transmission line of claim 12, wherein the second region comprises:
a third portion connected to one end of the first region;
a fourth portion connected to the other end of the first region.
14. The transmission line of claim 12, wherein the width of the first region is equal to the width of the second region.
15. The transmission line according to any one of claims 6 to 11, characterized in that the non-metallic layer is provided with a curved surface or a flat surface, the metallic layer being provided on the curved surface or the flat surface.
16. A terminal device, comprising: the transmission line according to any one of claims 6 to 15.
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| CN202210609550.8A CN114709581A (en) | 2022-05-31 | 2022-05-31 | Electromagnetic wave transmission method, transmission line and terminal device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150215042A1 (en) * | 2012-02-24 | 2015-07-30 | Institute of Microelectrics, Chinese Academy of Sciences | Millimeter-wave waveguide communication system |
| CN206163672U (en) * | 2016-11-25 | 2017-05-10 | 厦门大学 | Artificial surface etc. are from excimer waveguide based on spiral minor matters structure |
| CN206490160U (en) * | 2017-03-10 | 2017-09-12 | 成都雷电微力科技有限公司 | A kind of strip transmission line |
| CN108336467A (en) * | 2018-02-07 | 2018-07-27 | 南京邮电大学 | The super slow wave plane microwave delay line of binary cycle surface phasmon |
| CN109244609A (en) * | 2018-09-11 | 2019-01-18 | 区庆元 | A kind of square groove structure microwave filter with dual band operation characteristic |
| CN112803132A (en) * | 2019-11-14 | 2021-05-14 | 中国科学院上海微系统与信息技术研究所 | Transmission line structure |
| US11289789B1 (en) * | 2020-07-08 | 2022-03-29 | United States Of America As Represented By The Administrator Of Nasa | Bandpass filter using triangular patch resonators |
-
2022
- 2022-05-31 CN CN202210609550.8A patent/CN114709581A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150215042A1 (en) * | 2012-02-24 | 2015-07-30 | Institute of Microelectrics, Chinese Academy of Sciences | Millimeter-wave waveguide communication system |
| CN206163672U (en) * | 2016-11-25 | 2017-05-10 | 厦门大学 | Artificial surface etc. are from excimer waveguide based on spiral minor matters structure |
| CN206490160U (en) * | 2017-03-10 | 2017-09-12 | 成都雷电微力科技有限公司 | A kind of strip transmission line |
| CN108336467A (en) * | 2018-02-07 | 2018-07-27 | 南京邮电大学 | The super slow wave plane microwave delay line of binary cycle surface phasmon |
| CN109244609A (en) * | 2018-09-11 | 2019-01-18 | 区庆元 | A kind of square groove structure microwave filter with dual band operation characteristic |
| CN112803132A (en) * | 2019-11-14 | 2021-05-14 | 中国科学院上海微系统与信息技术研究所 | Transmission line structure |
| US11289789B1 (en) * | 2020-07-08 | 2022-03-29 | United States Of America As Represented By The Administrator Of Nasa | Bandpass filter using triangular patch resonators |
Non-Patent Citations (2)
| Title |
|---|
| JUN WANG等: "A Power Divider Based on the Spoof Surface Plasmon Polaritons", 《2019 INTERNATIONAL WORKSHOP ON ELECTROMAGNETICS: APPLICATIONS AND STUDENT INNOVATION COMPETITION》 * |
| 樊京 等: "《无线输电电磁近场仿真实践与理论研究》", 31 August 2016, 北京：煤炭工业出版社 * |
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