CN112186364A - Method for realizing compact multilayer transmitting-receiving antenna device - Google Patents
Method for realizing compact multilayer transmitting-receiving antenna device Download PDFInfo
- Publication number
- CN112186364A CN112186364A CN202011038059.1A CN202011038059A CN112186364A CN 112186364 A CN112186364 A CN 112186364A CN 202011038059 A CN202011038059 A CN 202011038059A CN 112186364 A CN112186364 A CN 112186364A
- Authority
- CN
- China
- Prior art keywords
- horizontal
- slot
- slotted
- microstrip line
- microstrip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
- H01Q15/08—Refracting or diffracting devices, e.g. lens, prism formed of solid dielectric material
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/11—Complex mathematical operations for solving equations, e.g. nonlinear equations, general mathematical optimization problems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- General Physics & Mathematics (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Optimization (AREA)
- Mathematical Analysis (AREA)
- Computational Mathematics (AREA)
- Data Mining & Analysis (AREA)
- Theoretical Computer Science (AREA)
- Operations Research (AREA)
- Algebra (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention discloses a method for realizing a compact multilayer transceiving antenna device, which comprises three metal layers, wherein two dielectric plates are arranged between the three metal layers; the top metal layer is an antenna array layer (100); the middle metal layer is a metal ground layer (110), and one side of the metal ground layer (110) is provided with a plurality of slotted gaps (51, 52, 53, 5n) which are arranged according to a certain set position; the bottom metal layer (120) is an electromagnetic lens (130); the compact multilayer transceiving antenna device realized by the method can form radiation beams in different directions, realize electronic scanning, and can be used in scenes such as 5G and 6G millimeter wave communication, millimeter wave satellite communication, millimeter wave radar and the like; compared with the traditional scheme, the technical scheme of the invention can be connected with a larger-scale antenna array due to the reduction of the wiring density and the length of the microstrip connecting line or the substrate integrated waveguide, and has the advantages of small volume, compact structure and low cost.
Description
Technical Field
The invention relates to a compact multilayer transceiving antenna device based on a Rotman electromagnetic lens and a realization method thereof, which can reduce the antenna aperture of the traditional Rotman electromagnetic lens antenna array by nearly half and reduce the cost; meanwhile, the length of a lens transmission line is reduced, and the path loss is reduced, which is particularly important for high-frequency communication in a frequency band above millimeter waves; due to the fact that the length of the lens transmission line is reduced, the density of the lens transmission line is reduced, compared with a traditional single-medium-layer Rotman electromagnetic lens antenna array, the number of lines of the lens transmission line can be increased, the number of antenna arrays can be increased, the traditional Rotman electromagnetic lens antenna array is difficult to realize more than 20 paths of antenna arrays, the existing implementation method of the compact multilayer transceiving antenna device can realize 42 paths of antenna arrays or even more, and the implementation method is particularly important for improving the communication distance and the spatial resolution of millimeter wave mobile communication, millimeter wave radar and satellite communication.
Therefore, the compact multilayer transceiving antenna device based on the Rotman electromagnetic lens has the advantages of small area, low cost, high gain, narrow beam and the like, and can be applied to scenes such as 5G and 6G millimeter waves, low-frequency terahertz communication, high-resolution millimeter wave radars and the like.
Background
The mobile communication technology is developed to the fifth generation (5G), the millimeter wave communication technology becomes the key technology of the 5G and the sixth generation mobile communication technology 6G, and the millimeter wave technology of 5G has the characteristics of large broadband, low time delay, large uplink bandwidth, high spatial resolution and the like, so that the millimeter wave and terahertz technology has an excellent application prospect in application scenes of high-capacity hot spots of 5G, industrial intelligent networks, car networking, space positioning and the like, and thus, the millimeter wave and terahertz technology is researched as the most promising technology in countries in europe and america. The millimeter wave has the defects that the space transmission loss is large, the path loss is compensated only by high antenna gain provided by a large-scale antenna array, but the problem of coverage is caused by narrower radiation beams brought by the large-scale antenna array, and the problem is solved by realizing multi-beam electric scanning through the phased antenna array for phased electric scanning. The Rotman electromagnetic lens antenna array has the advantages of low cost, low power consumption and the like, and the provided scanning multi-beam function has bright prospect in the fields of 5G millimeter wave communication, millimeter wave radar and the like.
In the millimeter wave technology field, Europe and America countries, especially the United states, research and development of layout are started before ten years, but China starts late in this respect, how to break through technical blockade and containment of foreign countries, grasp research and development and patent layout in this respect, and have urgent practical significance for China.
Disclosure of Invention
The invention aims to provide a method for realizing a compact multilayer transceiving antenna device; the method can reduce the antenna aperture of the traditional Rotman electromagnetic lens antenna array by nearly half, so the application scene is richer, the cost is reduced, and the number of lines of the lens transmission line can be increased more because the length of the lens transmission line is reduced and the path loss is reduced, so the number of the antenna array can be greatly increased compared with the traditional Rotman electromagnetic lens antenna array, and the method is a novel implementation method of the multi-beam compact electromagnetic lens antenna array.
According to the invention, the compact multilayer transceiving antenna device realized by the method is formed by tightly attaching two layers of PCB boards, wherein three metal layers are arranged, two dielectric plates are arranged between the three metal layers, and one sides of the three metal layers are aligned; the top metal layer is an antenna array layer 100, and the antenna array layer 100 is composed of a plurality of rows of antenna arrays 1, 2, 3, - - -, n; the middle metal layer is a metal ground layer, and one side of the metal ground layer is provided with a plurality of slotted gaps 1, 2, 3, - - -, n which are arranged according to a certain set position; the bottom metal layer is an electromagnetic lens with a phase-shifting function; electromagnetic signals are input from one port of each beam forming input end 1, 2, 3, - - - -, m of the electromagnetic lens, the phase of the electromagnetic signals is adjusted by the electromagnetic lens and flows out from each port of the antenna array input ports 1, 2, 3, - - -, n; in order to enable the antenna arrays 1, 2, 3, - - -, n to be shaped by wave beams, electromagnetic signal flows pass through microstrip lines 1, 2, 3, - - - -, n of signal branches 1, 2, 3, - - - - - -, n, horizontal microstrip lines 1, 2, 3, - - - - -, n, then are coupled to microstrip lines 1, 2, 3, - - - - - - - -, n at the front ends of first units of the antenna array layers of the top layer through slotted slots 1, 2, 3, - - - -, n on metal ground layers of middle layers, and then reach the first antenna units 1, 2, 3, - - - -, n of the antenna arrays 1, 2, 3, - - - - -, n, so that the phases of the electromagnetic signals are ensured not to be changed; the mutual positions of each slotted gap 1, 2, 3, - - -, n on the metal stratum are skillfully adjusted, so that the phase delay or the line length of each signal branch 1, 2, 3, - - - -, n is determined, and the phase of the electromagnetic signal is ensured not to change after flowing through the path; the mutual position relation among the slotted gaps 1, 2, 3, minus and n on the metal stratum is determined by the following method, the length of the x-th microstrip line x and the x-1-th microstrip line x-1 on the electromagnetic lens is set to be Lx and L (x-1), and x is the wholeThe number x is more than 1, the distance between the x-th slotted slot x and the x-1-th slotted slot x-1 on the metal stratum is Gx-1, the compact multi-layer transceiving antenna device is in an up-and-down symmetrical structure taking the horizontal center line of the electromagnetic lens as the symmetry, and for the upper half part, the value of Gx-1 meets the condition that Gx-1 is equal to or approximately equal to that of the upper half part
For the lower half, the value of Gx-1 satisfies that Gx-1 is equal or approximately equal to
According to the invention, the mutual positions of the slotted slots 1, 2, 3, - - - - -, n on the metal stratum are determined by the following method,
designing a proper size of the electromagnetic lens according to the electromagnetic signal frequency and the beam performance, determining the spacing and the position among the antenna arrays 1, 2, 3, - - -, n according to the electromagnetic signal wavelength of 0.5-0.7 lambda, and longitudinally aligning each antenna unit of the antenna arrays 1, 2, 3, - - - -, n on the antenna array layer; the initial position of each microstrip line 1, 2, 3, - - -, n on the electromagnetic lens is determined by the position of the antenna array input end 1, 2, 3, - - -, n of the electromagnetic lens connected with the microstrip line, and the horizontal central line of the tail end of each microstrip line is aligned with and connected with the horizontal central line of the horizontal microstrip line 141, 242, 343, - - - - - -, n 4 n; then properly designing the lengths of the microstrip lines 1, 2, 3, - - - -, n; because the vertical distance between the microstrip lines 1, 2, 3, - - -, n at the front end of the first unit on the antenna array layer is determined, and the slotted gaps 1, 2, 3, - - -, n are aligned with the horizontal central lines between the microstrip lines 1, 2, 3, - - - - -, n at the front end of the first unit, the mutual horizontal positions between the slotted gaps 1, 2, 3, - - - - - -, n are determined only according to the delay or line length of the signals of the microstrip lines 1, 2, 3, - - - - -, n of the electromagnetic lenses, and the lengths of the horizontal microstrip lines 1, 2, 3, - - - -, n aligned with the horizontal central lines are obtained; the compact multilayer transceiving antenna device is a vertically symmetrical structure taking the horizontal center line of the electromagnetic lens as symmetry, can determine all positions by only calculating the positions of slotted gaps of the upper half part or the lower half part,
for the upper half part, determining the position of the slotted slot 1 according to the positions of the antenna array 1, the microstrip line 1 at the front end of the first unit and the horizontal microstrip line 1; setting the central distance between the slot 2 and the slot 1 as G1, determining the position of the slot 2 according to G1, wherein G1 is approximately equal to the value obtained by subtracting the length of the microstrip line 2 from the length of the microstrip line 1 and then dividing the value by two, and the value of the deviation of the central position of the slot 2 from the central position of the slot 1 is G1; the central distance between the slotted slot 3 and the slotted slot 2 is set as G2, the position of the slotted slot 3 is determined according to G2, G2 is approximately equal to the value obtained by subtracting the length of the microstrip line 3 from the length of the microstrip line 2 and then dividing the value by two, and the value of the central position of the slotted slot 3 deviating from the central position of the slotted slot 2 is G2; the central distance between the slotted slot 4 and the slotted slot 3 is set as G3, the position of the slotted slot 4 is determined according to G3, G3 is approximately equal to the value obtained by subtracting the length of the microstrip line 4 from the length of the microstrip line 3 and then dividing the value by two, and the value of the central position of the slotted slot 4 deviating from the central position of the slotted slot 3 is G3; and so on, the position of the rear slotting gap is determined,
when the value of n is even number, the last slot gap of the upper half part of the corresponding electromagnetic lens is horizontally symmetrical
Slotted gap
And slotted gap
Is set to
Approximately equal to microstrip line
Length value subtraction microstrip line
Dividing the length value of (1) by two, and slotting the gap
Center position deviating from the slot gap
The value of the center position is
A value size; because the electromagnetic lens is symmetrical by taking a horizontal center line as a symmetry line, the lower half part of the horizontal symmetry of the electromagnetic lens is provided with the slotted gaps n, n-1, n-2 and-,
Positions, each center-to-center distance Gn-1, Gn-2, - - - - -, C,
The calculation can be carried out according to the lower half formula by the method, or the horizontal central lines of all the slotted electromagnetic lenses of the upper half part can be obtained by mirror symmetry;
when the value of n is odd, the last slotted gap of the upper half part of the corresponding electromagnetic lens is horizontally symmetrical
Slotted spoke
And slotted gap
Is set to
Approximately equal to microstrip line
Length value of minus microstrip line
Dividing the length value of (1) by two, and slotting the gap
Center position deviating from the slot gap
The value of the center position is
A value size; because the electromagnetic lens is symmetrical by taking a horizontal center line as a center line, the lower half part of the horizontal symmetry of the electromagnetic lens is provided with the slotted gaps n, n-1, n-2, and,
Positions with center distances Gn-1, Gn-2, Gn-3,
Or according to the lower half formula, calculating according to the method, or calculating the slotted gaps 1, 2, 3-and,
Is obtained in mirror symmetry with the horizontal midline of the electromagnetic lens.
According to the invention, the method for realizing the compact multilayer transceiving antenna device calculates the values of the central horizontal distances G1, G2, G3, - - -, Gn-1 among the slotted slots 1, 2, 3, - - - -, n on the metal ground according to the formula, determines the electromagnetic signal delay or bus length of the microstrip line 1 of the first signal branch, the horizontal microstrip line 1, the microstrip line 1 at the front end of the first unit, the electromagnetic signal delay or bus length of the microstrip line 2 of the second signal branch, the horizontal microstrip line 2, the microstrip line 2 at the front end of the first unit, the electromagnetic signal delay or bus length of the microstrip line 3 of the third signal branch, the horizontal microstrip line 3, the microstrip line 3 at the front end of the first unit, and the electromagnetic signal delay or bus length of the microstrip line n of the nth signal branch, the horizontal microstrip line n, and the microstrip line n at the front end of the first unit, all equal or similar; due to the measurement errors of the microstrip lines 1, 2, 3, - - -, n on the bottom metal layer and the influence of the slot gaps 1, 2, 3, - - - - -, n on the electromagnetic signal delay, the central horizontal distances G1, G2, G3, - - - - - -, and Gn-1 among the slot gaps 1, 2, 3, - - - - - - - -, n on the metal ground layer are calibrated by errors which do not exceed the 1/8 wavelength length of the input electromagnetic signal.
According to the method for realizing the compact multilayer transceiving antenna device, the slotted slot 1 on the metal ground layer, the horizontal central lines of the first unit front-end microstrip line 1 on the antenna array layer and the horizontal microstrip line 1 on the bottom metal layer are not only aligned with each other, but also the first unit front-end microstrip line 1 and the horizontal microstrip line 1 are longitudinally aligned on one side, and the slotted slots 2, 3, - - - -, n on the metal ground layer are sequentially aligned with the first unit front- end microstrip lines 2, 3, - - - - -, n on the antenna array layer and the horizontal central lines of the horizontal microstrip lines 2, 3, - - - - - -, n on the bottom metal layer according to the above mode, and the first unit front-end microstrip lines and the horizontal microstrip lines with the same name and serial numbers are longitudinally aligned on one side.
According to the method for realizing the compact multilayer transceiving antenna device, the slotted slots 1, 2, 3, - - - -, n on the metal stratum can be in the shapes of rectangle, rhombus, circle, ellipse, hexagon and bow tie.
According to the method for realizing the compact multilayer transceiving antenna device, the signal branches 1, 2, 3, - - -, n can be microstrip lines or substrate integrated waveguides; each antenna array 1, 2, 3, -n may be a microstrip planar antenna array, or may be a waveguide slot antenna array.
According to the method for realizing the compact multilayer transceiving antenna device, one or more dielectric layers can be covered above the surface of the electromagnetic lens to be used as a protective layer.
Drawings
The above and other features, nature, and advantages of the present invention will become more apparent from the detailed description of embodiments set forth below when taken in conjunction with the drawings in which like reference characters identify correspondingly throughout and wherein:
fig. 1, 2, 3, 4, and 5 are structural diagrams of implementation provided by an implementation method of a compact multilayer transceiving antenna device according to the present invention, and fig. 1, 2, 3, and 4 are diagrams illustrating an implementation method of a compact multilayer transceiving antenna device, in which the compact multilayer transceiving antenna device implemented by the method is formed by two PCB boards closely attached to each other, wherein there are three metal layers, two dielectric boards are disposed between the three metal layers, and one sides of the three metal layers are aligned; the top metal layer is an antenna array layer 100, and the antenna array layer 100 is composed of a plurality of rows of antenna arrays 81, 82, 83, - - -, 8 n; the middle metal layer is a metal ground layer 110, and one side of the metal ground layer 110 is provided with a plurality of slotted gaps 51, 52, 53, - - -, 5n which are arranged according to a certain set position; the bottom metal layer 120 is an electromagnetic lens 130 with a phase shifting function.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings.
Referring to fig. 2, 3 and 4, an electromagnetic signal is input from one port of each beamforming input end 111, 212, 313, - - -, m 1m of the electromagnetic lens 130, and the phase of the electromagnetic signal is adjusted by the electromagnetic lens 130 and flows out from each port of the antenna array input ports 121, 222, 323, - - -, n 2 n; in order to enable the antenna arrays 181, 282, 383, - - -, n 8n to be shaped by a beam, electromagnetic signals flow through the microstrip lines 131, 232, 333, - - - - - - -, n 3n, the horizontal microstrip lines 141, 242, 343, - - - - - - - -, n 4n of the signal branches 191, 292, 393, - - - - - - - - -, n 9n, and are coupled to the microstrip lines 161, 262, 363, - - - -, n 6n at the front ends of the first units of the antenna array layer 100 at the top layer through the slotted slots 151, 252, 353, - - - - - -, n 5n on the middle layer metal ground layer 110, and then reach the first antenna units 171, 272, 373, - - - -, n 7n of the antenna arrays 181, 282, 383, - -, n, and n 8n, and then the phases of the electromagnetic signals are ensured not to; each signal branch 1 is determined by skillfully adjusting the mutual positions of each slotted aperture 151, 252, 353, - - -, n 5n on the metal ground layer 11091. 292, 393, n 9n phase delays or line lengths ensuring that the phase of the electromagnetic signal does not change after passing through the path; the mutual position relation among the slotted slots 151, 252, 353, - - - -, n 5n on the metal ground layer 110 is determined by setting the lengths of the x-th microstrip line 3x and the x-1-th microstrip line x-13x-1 on the electromagnetic lens (130) to be Lx and L (x-1), wherein x is an integer and x is more than 1, the central horizontal distance between the x-th slotted slot x (5x) and the x-1-th slotted slot x-1(5x-1) on the metal ground layer 110 is Gx-1, the compact multi-layer transceiving antenna device is a vertically symmetrical structure taking the horizontal central line of the electromagnetic lens 130 as symmetry, and the value of Gx-1 for the upper half part meets the condition that Gx-1 is equal to or approximately equal to that of the upper half part
For the lower half, the value of Gx-1 satisfies that Gx-1 is equal or approximately equal to
As shown in fig. 2, 3 and 4, the mutual positions of the slotted holes 151, 252, 353, - - -, n 5n in the metal layer 110 are determined by,
according to the electromagnetic signal frequency and the beam performance, the proper size of the electromagnetic lens 130 is designed, and then the spacing and the position between each row of antenna arrays 181, 282, 383, -n 8n are determined according to the electromagnetic signal wavelength of 0.5-0.7 lambda, and each antenna unit of each antenna array 181, 282, 383, -n 8n on the antenna array layer 100 is longitudinally aligned; the starting position of each microstrip line 131, 232, 333, - - - -, n 3n on the electromagnetic lens 130 is determined by the position of the antenna array input end 121, 222, 323, - - -, n 2n of the electromagnetic lens 130 connected with it, and the horizontal central line of the tail end of each microstrip line is aligned with and connected with the horizontal central line of the horizontal microstrip line 141, 242, 343, - - - - - - -, n 4 n; then properly designing the lengths of the microstrip lines 131, 232, 333, - - - -, n 3 n; since the vertical distance between the first unit front microstrip lines 161, 262, 363, - - -, n 6n on the antenna array layer 100 is already determined, and the slotted slots 151, 252, 353, - - - -, n 5n are aligned with the horizontal center lines between the first unit front microstrip lines 161, 262, 363, - - - -, n 6n, it is only necessary to determine the horizontal positions of the slotted slots 151, 252, 353, - - - - - -, n 5n according to the delay or line length of the signals of the microstrip lines 131, 232, 333, - - - - - -, n 3n of the electromagnetic lens 130, and the lengths of the horizontal microstrip lines 141, 242, 343, - -, n 4n aligned with the horizontal center lines are also obtained; the compact multilayer transceiving antenna device is an up-down symmetrical structure taking a horizontal center line of the electromagnetic lens 130 as symmetry, and can determine all positions by only calculating the positions of slotted gaps of the upper half part or the lower half part;
for the upper half, the position of the slotted slot 151 is determined according to the positions of the antenna array 181, the first unit front end microstrip line 161 and the horizontal microstrip line 141; setting the horizontal distance between the centers of the slotted slot 252 and the slotted slot 151 as G1, determining the position of the slotted slot 252 according to G1, wherein G1 is approximately equal to the value obtained by subtracting the length of the microstrip line 232 from the length of the microstrip line 131 and then dividing the value by two, and the value of the horizontal deviation of the center position of the slotted slot 252 from the center position of the slotted slot 151 is G1; the horizontal distance between the centers of the slotted aperture 353 and the slotted aperture 252 is set as G2, the position of the slotted aperture 353 is determined according to G2, G2 is approximately equal to the value obtained by subtracting the length of the microstrip line 333 from the length of the microstrip line 232 and then dividing the value by two, and the value of the horizontal deviation of the central position of the slotted aperture 353 from the central position of the slotted aperture 252 is G2; the horizontal distance between the centers of the slotted slot 454 and the slotted slot 353 is set as G3, the position of the slotted slot 454 is determined according to G3, G3 is approximately equal to the value obtained by subtracting the length of the microstrip line 434 from the length of the microstrip line 333 and then dividing the value by two, and the value of the horizontal deviation of the central position of the slotted slot 454 from the central position of the slotted slot 353 is the value of G3; and so on, the position of the rear slotting gap is determined,
when n is even, the last slot of the upper half of the corresponding electromagnetic lens 130 is horizontally symmetrical
SlottingGap
And slotted gap
Is set at a center horizontal pitch of
Approximately equal to microstrip line
Length value of minus microstrip line
Dividing the length value of (1) by two, and slotting the gap
Center position horizontally deviated slotting gap
The value of the center position is
A value size; because the electromagnetic lens 130 is symmetrical about the horizontal center line, the lower half part of the horizontal symmetry of the electromagnetic lens 130 is provided with the slotted gaps n 5n, n-15 n-1, n-25 n-2,
Positions each having a center horizontal pitch Gn-1, Gn-2,
Or calculated according to the lower half formula by the above method, or the slotted gaps 151, 252, 353, in the upper half part can be formed,
The positions are obtained in mirror symmetry with the horizontal center line of the electromagnetic lens 130;
when the value of n is odd, the corresponding electromagnetic lens (130) is horizontally symmetrical with the last slotting gap of the upper half part
Slotted gap
And slotted gap
Is set at a center horizontal pitch of
Approximately equal to microstrip line
Length value of minus microstrip line
Dividing the length value of (1) by two, and slotting the gap
Center position horizontally deviated slotting gap
The value of the center position is
A value size; because the electromagnetic lens 130 is symmetrical about the horizontal center line, the lower half part of the horizontal symmetry of the electromagnetic lens 130 is provided with the slotted gaps n 5n, n-15 n-1, n-25 n-2, n-and n-respectively,
Positions with a central horizontal spacing Gn-1, Gn-2,
Or according to the lower half formula, or according to the above method, or according to the above formula,
the position is obtained with mirror symmetry about the horizontal centerline of the electromagnetic lens 130.
Referring to fig. 2, 3 and 4, the central distances G1, G2, G3, - - -, Gn-1 between the slots 151, 252, 353, - - - -, n 5n on the metal ground 110 calculated by the formula determine the electromagnetic signal delay or bus length of the microstrip line 131, the horizontal microstrip line 141, and the first unit front microstrip line 161 of the first signal branch 91, the microstrip line 232, the horizontal microstrip line 242, and the first unit front microstrip line 262 of the second signal branch 92, the electromagnetic signal delay or bus length of the microstrip line 333, the horizontal microstrip line 343, and the first unit front microstrip line 363 of the third signal branch 93, the electromagnetic signal delay or bus length of the horizontal microstrip line 363, and the electromagnetic signal delay or bus length of the microstrip line n 3n, the horizontal microstrip line n 4n, and the first unit front microstrip line n 6n of the nth signal branch 9n, all equal or similar; in fig. 2, due to the measurement error of the length of each microstrip line 131, 232, 333, - - - -, n 3n on the bottom metal layer 120 and the influence of each slot 151, 252, 353, - - - - - - -, n 5n on the electromagnetic signal delay, the center-to-center distances G1, G2, G3, - - - - - - -, n 5n of each slot 151, 252, 353, - - - - - - - -, n 5n on the metal ground layer 110 are calibrated to have an error not exceeding the 1/8 wavelength length of the input electromagnetic signal.
As shown in fig. 5, the slotted slot 151 on the metal ground layer 110 is not only aligned with the horizontal central lines of the first unit front-end microstrip line 161 on the antenna array layer 100 and the horizontal microstrip line 141 on the bottom metal layer 120, but also the first unit front-end microstrip line 161 and the horizontal microstrip line 141 are longitudinally aligned on one side, and similarly, according to the above manner, the slotted slots 252, 353, - - - - - -, n 5n on the metal ground layer 110 are aligned with the horizontal central lines of the first unit front-end microstrip lines 262, 363, - - - - - -, n 6n on the antenna array layer 100 and the horizontal microstrip lines 242, 343, - - - - - -, n 4n on the bottom metal layer 120 according to the same name and serial numbers, and the first unit front-end microstrip lines and the horizontal microstrip lines with the same name and serial numbers.
Referring to fig. 3, the shape of each slotted hole 151, 252, 353, - - - -, n 5n in the metal ground layer 110 may be rectangular, diamond, circular, oval, hexagonal, or bow tie.
Referring to fig. 2 and 4, each signal branch 191, 292, 393, - - - -, n 9n may be a microstrip line or a substrate integrated waveguide; each antenna array 181, 282, 383, - - - -, n 8n may be a microstrip planar antenna array, or may be a waveguide slot antenna array.
One or more dielectric layers may be applied over the surface of the electromagnetic lens (130) as a protective layer.
The embodiments described above are provided to enable persons skilled in the art to make or use the invention and that modifications or variations can be made to the embodiments described above by persons skilled in the art without departing from the inventive concept of the present invention, so that the scope of protection of the present invention is not limited by the embodiments described above but should be accorded the widest scope consistent with the innovative features set forth in the claims.
Claims (7)
1. A compact multilayer transceiving antenna device realized by the method is formed by tightly attaching two layers of PCB boards, wherein three metal layers are arranged, two dielectric boards are arranged between the three metal layers, and one sides of the three metal layers are aligned; the top metal layer is an antenna array layer (100), and the antenna array layer (100) is composed of a plurality of rows of antenna arrays 1(81), 2(82), 3(83), - - -, n (8 n); the intermediate metal layer is a metal ground layer (110), and one side of the metal ground layer (110) is provided with a plurality of slotted gaps 1(51), 2(52), 3(53), -n and n (5n) which are arranged according to a certain set position; the bottom metal layer (120) is an electromagnetic lens (130) with a phase shifting function; electromagnetic signals are transmitted from the beam forming input terminals 1(11), 2(12), 3(13), -m (1m) of the electromagnetic lens (130)A port input, the phase of the electromagnetic signal is adjusted by the electromagnetic lens (130), and the electromagnetic signal flows out from each port of the antenna array input ports 1(21), 2(22), 3(23), - - -, n (2 n); it is characterized in that, in order to make the antenna array 1(81), 2(82), 3(83), - - -, n (8n) capable of beam forming, the electromagnetic signal flow passes through the signal branch 1(91), 2(92), 3(93), - -, microstrip lines 1(31), 2(32), 3(33), - -, n (3n), horizontal microstrip lines 1(41), 2(42), 3(43), -, n (4n) on the electromagnetic lens (130), and then is coupled to the first unit front end microstrip lines 1(61), 2(62), 3(63), - -, n (6n) of the antenna array layer (100) of the top layer through the slotted slits 1(51), 2(52), 3(53), -, n (5n) on the metal layer (110) of the middle layer, then, the paths to the first antenna units 1(71), (2) (72), (3) (73), (7) of the antenna arrays 1(81), (2) (82), (3) (83), (7) ensure that the phase of the electromagnetic signal is not changed; by skillfully adjusting the mutual positions of each slotted slot 1(51), 2(52), 3(53), -n and n (5n) on the metal ground layer (110), the specific phase delay or line length of each signal branch 1(91), 2(92), 3(93), -n and n (9n) is determined, so that the phase of the electromagnetic signal is not changed after flowing through the path; the mutual position relation between the slotted slots 1(51), 2(52), 3(53), -and n (5n) is determined by setting the lengths of an X-th micro-strip line (3X) and an X-1-th micro-strip line X-1(3X-1) on the electromagnetic lens (130) to Lx and L (X-1), wherein X is an integer and X is more than 1, the central horizontal distance between the X-th slotted slot X (5X) and the X-1-th slotted slot X-1(5X-1) on the metal layer (110) is Gx-1, the compact multi-layer transceiving antenna device is an up-and-down symmetrical structure taking the horizontal central line of the electromagnetic lens (130) as symmetry, and the value of Gx-1 satisfies that Gx-1 is equal to or approximately equal to Gx-1 for the upper half part
For the lower half, the value of Gx-1 satisfies that Gx-1 is equal or approximately equal to
2. A method for implementing a compact multilayer transceiving antenna device according to claim 1, wherein the mutual positions between the slotted slots 1(51), 2(52), 3(53), -n (5n) on the metal ground layer (110) are determined by,
designing the proper size of the electromagnetic lens (130) according to the electromagnetic signal frequency and the beam performance, determining the spacing and the position between each row of antenna arrays 1(81), 2(82), 3(83), -n, n (8n) according to the electromagnetic signal wavelength of 0.5-0.7 lambda, and vertically aligning each antenna unit of each antenna array 1(81), 2(82), 3(83), -n, n (8n) on the antenna array layer (100); the starting position of each microstrip line 1(31), 2(32), 3(33), -n (3n) on the electromagnetic lens (130) is determined by the positions of the antenna array input ends 1(21), 2(22), 3(23), -n (2n) of the electromagnetic lens (130) connected with the microstrip line, and the horizontal central lines of the tail ends of the microstrip lines are aligned with and connected with the horizontal central lines of the horizontal microstrip lines 1(41), 2(42), 3(43), -n (4 n); the lengths of the microstrip lines 1(31), 2(32), 3(33), -n (3n) are designed appropriately; since the vertical spacing between the first front microstrip lines 1(61), (2) (62), (3) (63), -n (6n) on the antenna array layer (100) is determined and the horizontal center line pair between the slot slots 1(51), (2) (52), (3) (53), -n (5n) and the first front microstrip lines 1(61), (2) (62), (3) (63), -n (6n) is determined, it is only necessary to determine the horizontal positions of the slot slots 1(51), (2) (32), (3) (33), (3), (53), -n (3n) according to the delay or line length of the signals of the microstrip lines 1(31), (2) (52), (3) (53), -n (5n) of the electromagnetic lens (130), and the horizontal microstrip lines 1(41) aligned with the horizontal center line, The lengths of 2(42), 3(43), -n (4n) are thus obtained; the compact multilayer transceiving antenna device is an up-down symmetrical structure taking a horizontal center line of an electromagnetic lens (130) as symmetry, and can determine all positions by only calculating the positions of slotted gaps of the upper half part or the lower half part;
for the upper half part, determining the positions of the slotted slots 1(51) according to the positions of the antenna array 1(81), the first unit front-end microstrip line 1(61) and the horizontal microstrip line 1 (41); setting the horizontal distance between the centers of the slotted slots 2(52) and the slotted slots 1(51) as G1, determining the positions of the slotted slots 2(52) according to G1, wherein G1 is approximately equal to the length of the microstrip lines 1(31) minus the length of the microstrip lines 2(32) divided by two, and the value of the horizontal deviation of the center positions of the slotted slots 2(52) from the center positions of the slotted slots 1(51) is G1; the horizontal distance between the centers of the slot 3(53) and the slot 2(52) is set as G2, the position of the slot 3(53) is determined according to G2, G2 is approximately equal to the length of the microstrip line 2(32) minus the length of the microstrip line 3(33) divided by two, and the value of the horizontal deviation of the center of the slot 3(53) from the center of the slot 2(52) is G2; the horizontal distance between the centers of the slot 4(54) and the slot 3(53) is set as G3, the position of the slot 4(54) is determined according to G3, G3 is approximately equal to the length of the microstrip line 3(33) minus the length of the microstrip line 4(34) divided by two, and the value of the horizontal deviation of the center of the slot 4(54) from the center of the slot 3(53) is G3; and so on, the position of the rear slotting gap is determined,
when the value of n is even, the last slotting gap of the upper half part of the corresponding electromagnetic lens (130) is horizontally symmetrical
Slotted gap
And slotted gap
Is set at a center horizontal pitch of
Approximately equal to microstrip line
Length minus microstrip line
Is divided by two after the length of the groove, and a slot is formed
Center position horizontally deviated slotting gap
The value of the center position is
A value size; because the electromagnetic lens (130) is symmetrical about the horizontal center line, the lower half part of the horizontal symmetry of the electromagnetic lens (130) is provided with the slotted gaps
Position of horizontal spacing of respective centers thereof
Or calculating according to the formula of the lower half part and the above method, or dividing the slots of the upper half part
The position is obtained in mirror symmetry with the horizontal center line of the electromagnetic lens (130);
when the value of n is odd, the corresponding electromagnetic lens (130) is horizontally symmetrical with the last slotting gap of the upper half part
Slotted gap
And slotted gap
Is set at a center horizontal pitch of
Approximately equal to microstrip line
Length minus microstrip line
Is divided by two after the length of the groove, and a slot is formed
Center position horizontally deviated slotting gap
The value of the center position is
A value size; because the electromagnetic lens (130) is symmetrical about the horizontal centerline, the slot gaps are formed for the lower half of the horizontal symmetry of the electromagnetic lens (130)
Position with its center horizontally spaced
Or according to the lower half formula, or according to the above method, or calculating the slotted gaps of the upper half
The position is obtained with mirror symmetry about a horizontal center line of the electromagnetic lens (130).
3. The method of claim 1, wherein the central horizontal distances G1, G2, G3, - -, Gn-1 between slots 1(51), (2), (52), (3), (53), and (5n) on the metal ground layer (110) are calculated according to a formula, the microstrip lines 1(31) and 1(41) of the first signal branch (91), the electromagnetic signal delay or bus length of the first unit front microstrip line 1(61), the microstrip lines 2(32) and 2(42) of the second signal branch (92), the electromagnetic signal delay or bus length of the first unit front microstrip line 2(62), the microstrip lines 3(33) and 3(43) of the third signal branch (93), and the electromagnetic signal delay or bus length of the first unit front microstrip line 3(63) are determined, -the electromagnetic signal delays or bus lengths of the microstrip line n (3n), the horizontal microstrip line n (4n) and the microstrip line n (6n) at the front end of the first unit up to the nth signal branch (9n) are all equal or close to each other; due to the influence of the line length measurement errors of the microstrip lines 1(31), 2(32), 3(33), -n, and n (3n) on the underlying metal layer (120) and the slot gaps 1(51), 2(52), 3(53), -n, and n (5n) on the electromagnetic signal delay, the central horizontal distances G1, G2, G3, -Gn, and Gn-1 between the slot gaps 1(51), (2) (52), 3(53), -n, and n (5n) on the metal layer (110) may be calibrated to an error not exceeding 1/8 wavelength of the input electromagnetic signal.
4. The method of claim 1, wherein the horizontal central lines of the slot 1(51) on the metal ground layer (110) and the first front microstrip line 1(61) on the antenna array layer (100) and the horizontal microstrip line 1(41) on the bottom metal layer (120) are not only aligned with each other, but also the horizontal central lines of the first front microstrip line 1(61) and the horizontal microstrip line 1(41) are longitudinally aligned on one side, and the slot 2(52), 3(53), -n (5n) on the metal ground layer (110) and the first front microstrip line 2(62), 3(63), -n (6n) on the antenna array layer (100) and the horizontal microstrip lines 2(42), 3(43), -n (6n) on the bottom metal layer (120) are also aligned in the above manner, The horizontal central lines of n (4n) are aligned according to the same name and serial number, and the first unit front end microstrip line and the horizontal microstrip line with the same name and serial number are longitudinally aligned on one side.
5. The method of claim 1, wherein the slot 1(51), 2(52), 3(53), -n (5n) of the metal ground layer (110) is rectangular, diamond, circular, oval, hexagonal, or bow-tie.
6. The method of claim 1, wherein each signal branch 1(91), 2(92), 3(93), - - -, n (9n) may be in the form of microstrip line or substrate integrated waveguide; each antenna array 1(81), 2(82), 3(83), -n, n (8n) may be a microstrip planar antenna array, or may be a waveguide slot antenna array.
7. A method for implementing a compact multi-layer transceiver antenna assembly according to claim 1, wherein one or more dielectric layers are applied as protective layers over the surface of the electromagnetic lens (130).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011038059.1A CN112186364B (en) | 2020-09-28 | 2020-09-28 | Method for realizing compact multilayer transmitting-receiving antenna device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011038059.1A CN112186364B (en) | 2020-09-28 | 2020-09-28 | Method for realizing compact multilayer transmitting-receiving antenna device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112186364A true CN112186364A (en) | 2021-01-05 |
| CN112186364B CN112186364B (en) | 2023-01-10 |
Family
ID=73944347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011038059.1A Active CN112186364B (en) | 2020-09-28 | 2020-09-28 | Method for realizing compact multilayer transmitting-receiving antenna device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112186364B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101102012A (en) * | 2007-07-12 | 2008-01-09 | 上海交通大学 | Multi-layer three-dimension suspending unidirectional broadband circle polarized millimeter wave plane gap antenna |
| CN101291017A (en) * | 2008-05-27 | 2008-10-22 | 东南大学 | Multi-beam antenna of substrate integrated wave-guide based on principal of Rotman lens |
| CN101707289A (en) * | 2009-11-06 | 2010-05-12 | 北京经纬恒润科技有限公司 | Multiple-wave beam antenna |
| CN101950860A (en) * | 2010-10-25 | 2011-01-19 | 东南大学 | Modularized low-cost millimeter wave real-time imaging electronic scanning antenna system- |
| CN104103906A (en) * | 2014-08-01 | 2014-10-15 | 东南大学 | Low-cost microwave- and millimeter-wave polarized antenna of multi-layer PCB (Printed circuit board) process |
| CN107819201A (en) * | 2017-10-24 | 2018-03-20 | 东南大学 | A kind of compact gradual change slot array antenna suitable for 5G millimetre-wave attenuators |
| CN108649325A (en) * | 2018-03-20 | 2018-10-12 | 北京邮电大学 | A kind of wide band high-gain millimeter wave dielectric resonant antenna array |
| CN108736141A (en) * | 2017-04-18 | 2018-11-02 | 日本电产株式会社 | slot array antenna and radar |
| CN108832293A (en) * | 2018-06-27 | 2018-11-16 | 电子科技大学 | A kind of substrate integration wave-guide leaky wave slot array antenna near field two-dimensional scanning |
| CN109346843A (en) * | 2018-10-31 | 2019-02-15 | 南京邮电大学 | A kind of space one-dimensional scanning lens antenna and its beam sweeping method based on Parabolic Phase distribution |
| CN110690584A (en) * | 2019-10-23 | 2020-01-14 | 湖南国科锐承电子科技有限公司 | Low-profile broadband wide-angle cylindrical surface conformal multi-beam microstrip array antenna |
| CN111262025A (en) * | 2020-03-02 | 2020-06-09 | 云南大学 | Integrated substrate gap waveguide beam scanning leaky-wave antenna |
| CN111525280A (en) * | 2020-04-10 | 2020-08-11 | 上海交通大学 | Circular polarization scanning array antenna based on Rotman lens |
-
2020
- 2020-09-28 CN CN202011038059.1A patent/CN112186364B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101102012A (en) * | 2007-07-12 | 2008-01-09 | 上海交通大学 | Multi-layer three-dimension suspending unidirectional broadband circle polarized millimeter wave plane gap antenna |
| CN101291017A (en) * | 2008-05-27 | 2008-10-22 | 东南大学 | Multi-beam antenna of substrate integrated wave-guide based on principal of Rotman lens |
| CN101707289A (en) * | 2009-11-06 | 2010-05-12 | 北京经纬恒润科技有限公司 | Multiple-wave beam antenna |
| CN101950860A (en) * | 2010-10-25 | 2011-01-19 | 东南大学 | Modularized low-cost millimeter wave real-time imaging electronic scanning antenna system- |
| CN104103906A (en) * | 2014-08-01 | 2014-10-15 | 东南大学 | Low-cost microwave- and millimeter-wave polarized antenna of multi-layer PCB (Printed circuit board) process |
| CN108736141A (en) * | 2017-04-18 | 2018-11-02 | 日本电产株式会社 | slot array antenna and radar |
| CN107819201A (en) * | 2017-10-24 | 2018-03-20 | 东南大学 | A kind of compact gradual change slot array antenna suitable for 5G millimetre-wave attenuators |
| CN108649325A (en) * | 2018-03-20 | 2018-10-12 | 北京邮电大学 | A kind of wide band high-gain millimeter wave dielectric resonant antenna array |
| CN108832293A (en) * | 2018-06-27 | 2018-11-16 | 电子科技大学 | A kind of substrate integration wave-guide leaky wave slot array antenna near field two-dimensional scanning |
| CN109346843A (en) * | 2018-10-31 | 2019-02-15 | 南京邮电大学 | A kind of space one-dimensional scanning lens antenna and its beam sweeping method based on Parabolic Phase distribution |
| CN110690584A (en) * | 2019-10-23 | 2020-01-14 | 湖南国科锐承电子科技有限公司 | Low-profile broadband wide-angle cylindrical surface conformal multi-beam microstrip array antenna |
| CN111262025A (en) * | 2020-03-02 | 2020-06-09 | 云南大学 | Integrated substrate gap waveguide beam scanning leaky-wave antenna |
| CN111525280A (en) * | 2020-04-10 | 2020-08-11 | 上海交通大学 | Circular polarization scanning array antenna based on Rotman lens |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112186364B (en) | 2023-01-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107196049B (en) | Array antenna | |
| CN106911011B (en) | Array antenna structure and design method | |
| CN104092028B (en) | Suppress the balanced feeding difference slot antenna of common-mode noise | |
| JP5253468B2 (en) | Antenna device and radar device | |
| Moulder et al. | 60-GHz two-dimensionally scanning array employing wideband planar switched beam network | |
| JP5069093B2 (en) | Flexible substrate integrated waveguide | |
| JP5468085B2 (en) | Grid array antenna and integrated structure | |
| CN102324627B (en) | Miniaturization substrate integrated multi-beam antenna | |
| JP4469009B2 (en) | Method and apparatus for improving performance in a waveguide-based spatial power combiner | |
| CN108666743B (en) | Orthogonal polarization plane array antenna designed by adopting cross polarization suppression method | |
| Chang et al. | Low-sidelobe air-filled slot array fabricated using silicon micromachining technology for millimeter-wave application | |
| US11876303B2 (en) | Switched-beam end-fire planar array and integrated feed network for 60-GHz chip-to-chip space-surface wave communications | |
| US20130285865A1 (en) | Printed slot-type directional antenna, and system comprising an array of a plurality of printed slot-type directional antennas | |
| JP2010212895A (en) | Antenna system and radar device | |
| US7289078B2 (en) | Millimeter wave antenna | |
| US4321605A (en) | Array antenna system | |
| US4121220A (en) | Flat radar antenna employing circular array of slotted waveguides | |
| US20220416397A1 (en) | Coupling device and antenna | |
| US7064713B2 (en) | Multiple element patch antenna and electrical feed network | |
| CN112186364B (en) | Method for realizing compact multilayer transmitting-receiving antenna device | |
| CN106486728A (en) | Waveguide, slot antenna and electromagnetic horn | |
| Sanadgol et al. | 60 GHz substrate integrated waveguide fed steerable LTCC antenna array | |
| CN206098644U (en) | Wave guide, slot antenna and horn antenna | |
| US20220416443A1 (en) | Array antenna apparatus and preparation method therefor, and electronic device | |
| CN112748426B (en) | Monopulse sum-difference network for long-distance high-resolution radar system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |