CN114094295A - Magnetic wall waveguide based on artificial magnetic conductor structure - Google Patents
Magnetic wall waveguide based on artificial magnetic conductor structure Download PDFInfo
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- CN114094295A CN114094295A CN202111335381.5A CN202111335381A CN114094295A CN 114094295 A CN114094295 A CN 114094295A CN 202111335381 A CN202111335381 A CN 202111335381A CN 114094295 A CN114094295 A CN 114094295A
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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
- H01P3/16—Dielectric waveguides, i.e. without a longitudinal conductor
Abstract
The invention relates to the technical field of microwaves, in particular to a magnetic wall waveguide based on an artificial magnetic conductor structure, which comprises a dielectric plate, wherein the dielectric plate is of a rectangular tubular structure; the dielectric plate is characterized in that a plurality of metal patches are distributed on the inner wall of the dielectric plate in an array mode, a metal plane is arranged on the outer wall of the dielectric plate, a metalized through hole is formed in the dielectric plate, and two ends of the metalized through hole are connected with the metal plane and the corresponding metal patches respectively. The invention has the advantages that: the invention reforms the traditional electric wall waveguide, constructs the traditional mushroom-shaped artificial magnetic conductor into the magnetic wall rectangular waveguide based on the artificial magnetic conductor, and leads four surfaces of the waveguide to be surrounded by the artificial magnetic conductor, thereby realizing more electromagnetic wave transmission functions and expanding the functionality of the microwave field.
Description
Technical Field
The invention relates to the technical field of microwaves, in particular to a magnetic wall waveguide based on an artificial magnetic conductor structure.
Background
The structure of artifical magnetic conductor at present develops fast, often carries out the reflection configuration setting based on artifical magnetic conductor, and traditional mushroom type magnetic conductor has widely been applied to microwave technology design as the conventional structure of artifical magnetic conductor.
In the prior art, for example, chinese patent application No. cn201410305969.x discloses a low-profile polarization torsion reflection plate based on an artificial magnetic conductor, and the structure is based on a mushroom-type artificial magnetic conductor, and impedance symmetry of the structure is broken by changing the number and positions of metal through holes, so that an orthogonally polarized electric field is excited, and polarization torsion characteristics are realized. By properly adjusting the position of the metal through hole, a larger polarization torsion bandwidth can be realized.
In the prior art, the conventional mushroom-type artificial magnetic conductor is not found in the magnetic wall rectangular waveguide based on the artificial magnetic conductor, and the conventional electrical wall waveguide cannot realize more electromagnetic wave transmission functions and expand the functionality of the microwave field.
Disclosure of Invention
The technical problem to be solved by the invention is as follows:
in the prior art, the construction of a conventional mushroom-type artificial magnetic conductor into a magnetic-wall rectangular waveguide based on the artificial magnetic conductor has not been found. The principle structure of the invention is based on the magnetic wall waveguide of the artificial magnetic conductor, which can expand the functionality of the traditional electric wall waveguide in the microwave field.
The invention solves the technical problems through the following technical means:
a magnetic wall waveguide based on an artificial magnetic conductor structure comprises a dielectric slab, wherein the dielectric slab is of a rectangular tubular structure;
the dielectric plate is characterized in that a plurality of metal patches are distributed on the inner wall of the dielectric plate in an array mode, a metal plane is arranged on the outer wall of the dielectric plate, a metalized through hole is formed in the dielectric plate, and two ends of the metalized through hole are connected with the metal plane and the corresponding metal patches respectively.
The invention reforms the traditional electric wall waveguide, constructs the traditional mushroom-shaped artificial magnetic conductor into the magnetic wall rectangular waveguide based on the artificial magnetic conductor, and leads four surfaces of the waveguide to be surrounded by the artificial magnetic conductor, thereby realizing more electromagnetic wave transmission functions and expanding the functionality of the microwave field.
Preferably, the dielectric plate comprises four dielectric substrates connected in sequence;
the metal patch is arranged on the inner wall of the dielectric substrate, the metal plane is arranged on the outer wall of the dielectric substrate, and the metalized through hole is formed in the dielectric substrate.
Preferably, the cross section of the dielectric slab is rectangular, and the length of the long side of the rectangle is greater than that of the wide side.
Preferably, the direction of the through inside of the dielectric plate is the transmission direction, and the metal patches on the inner wall of the dielectric plate are distributed in an array mode along the transmission direction.
Preferably, the metal patches are distributed on the inner wall of the dielectric plate in an array manner along a direction perpendicular to the transmission direction.
Preferably, the metal patch is rectangular.
Preferably, the metalized through holes are round holes.
Preferably, the metalized through holes are connected to the middle positions of the corresponding metalized through holes.
Optimally, the transmission magnetic field of the magnetic wall waveguide is perpendicular to the magnetic wall waveguide.
Optimally, the electric field of the magnetic wall waveguide is parallel to the transverse magnetic wave or transverse electric wave of the magnetic wall waveguide.
The invention has the advantages that:
the invention reforms the traditional electric wall waveguide, constructs the traditional mushroom-shaped artificial magnetic conductor into the magnetic wall rectangular waveguide based on the artificial magnetic conductor, and leads four surfaces of the waveguide to be surrounded by the artificial magnetic conductor, thereby expanding the functionality of the microwave field.
Drawings
FIG. 1 is a schematic three-dimensional structure diagram of a magnetic wall waveguide based on an artificial magnetic conductor structure according to an embodiment of the present invention;
FIG. 2 is a block diagram of a magnetic wall waveguide based on an artificial magnetic conductor structure according to an embodiment of the present invention;
FIG. 3 is a diagram (schematic diagram) of a reflected phase based on an artificial magnetic conductor structure according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of the distribution of the magnetic field of the fundamental mode inside the magnetic wall waveguide based on the artificial magnetic conductor structure in the embodiment of the present invention;
FIG. 5 is a schematic diagram of the distribution of the electric field of the fundamental mode inside the magnetic wall waveguide based on the artificial magnetic conductor structure in the embodiment of the present invention;
wherein the content of the first and second substances,
a metal patch-1; metal plane-2; metallized through-holes-3; a dielectric substrate-4; the direction of transmission-X.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a magnetic wall waveguide based on an artificial magnetic conductor structure includes a dielectric plate, a metal patch 1, a metal plane 2, and a metalized through hole 3.
As shown in fig. 1 and 2, the dielectric plate is a rectangular tubular structure; the cross section of the dielectric slab is rectangular, and the length of the long side of the rectangle is larger than that of the wide side. A plurality of metal patches 1 are distributed on the inner wall of the dielectric slab in an array mode, and the metal patches 1 are rectangular. The outer wall of the dielectric plate is provided with a metal plane 2, a metalized through hole 3 is arranged in the dielectric plate, and the metalized through hole 3 is a round hole. Two ends of the metallized through hole 3 are respectively connected with the metal plane 2 and the corresponding metal patch 1. Specifically, the metalized through holes 3 are connected to the middle positions of the corresponding metalized through holes 3, and the metalized through holes 3 correspond to the metal patches 1 one to one.
Specifically, the dielectric plate comprises four dielectric substrates 4 connected in sequence; the metal patch 1 is arranged on the inner wall of the dielectric substrate 4, the metal plane 2 is arranged on the outer wall of the dielectric substrate 4, namely the periphery of the dielectric plate is surrounded by the metal plane 2, the metalized through hole 3 is positioned in the dielectric substrate 4, and the metalized through hole 3 is vertical to the corresponding metal patch 1, the metal plane 2 and the dielectric substrate 4.
As shown in fig. 1, the direction of the through-holes inside the dielectric plate is the transmission direction X, the transmission direction X is the X axis, the bottom surface of the dielectric plate is the XOY surface, and the metal patches 1 on the inner wall of the dielectric plate are distributed in an array along the transmission direction X. The metal patches 1 are distributed on the inner wall of the dielectric plate in an array mode along the direction perpendicular to the transmission direction X, namely the metal patches 1 are distributed in an array mode along the X axis, the metal patches 1 on the upper inner wall and the lower inner wall of the dielectric plate are arrayed along the Y axis, and the metal patches 1 on the left inner wall and the right inner wall of the dielectric plate are arrayed along the Z axis. The metal patches on the four walls of each waveguide are arranged periodically at equal intervals along the direction of the set x axis to form long-side magnetic walls and short-side magnetic walls of the waveguide.
The transmission magnetic field of the magnetic wall waveguide is perpendicular to the magnetic wall waveguide. The electric field of the magnetic wall waveguide is parallel to the transverse magnetic wave or transverse electric wave of the magnetic wall waveguide.
As shown in fig. 3, the super-surface of the present invention can use a unit structure to perform reflection phase simulation, and the reflection phase is about 0 ° at a 17.8GHz point, so that the super-surface functions as a magnetic conductor.
As shown in fig. 4, the distribution diagram of the fundamental mode magnetic field of the magnetic wall rectangular waveguide based on the artificial magnetic conductor structure of the present invention forms a dual relationship with the fundamental mode electric field of the conventional electric wall waveguide. The magnetic field of the magnetic wall waveguide mode and the corresponding electric field of the electric wall waveguide mode form a dual relation. The magnetic lines of force inside the magnetic wall waveguide form a closed magnetic line of force inside the medium of the artificial magnetic conductor.
As shown in fig. 5, the distribution diagram of the fundamental mode electric field of the magnetic wall rectangular waveguide based on the artificial magnetic conductor structure of the present invention forms a dual relationship with the fundamental mode magnetic field of the conventional electrical wall waveguide. The electric field of the magnetic wall waveguide mode and the corresponding electric wall waveguide mode magnetic field form a dual relation.
The invention reforms the traditional electric wall waveguide, constructs the traditional mushroom-shaped artificial magnetic conductor into the magnetic wall rectangular waveguide based on the artificial magnetic conductor, and leads four surfaces of the waveguide to be surrounded by the artificial magnetic conductor, thereby realizing more electromagnetic wave transmission functions and expanding the functionality of the microwave field.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A magnetic wall waveguide based on an artificial magnetic conductor structure is characterized in that: the dielectric plate is of a rectangular tubular structure;
the metal patch type dielectric plate is characterized in that a plurality of metal patches (1) are distributed on the inner wall of the dielectric plate in an array mode, a metal plane (2) is arranged on the outer wall of the dielectric plate, a metalized through hole (3) is formed in the dielectric plate, and two ends of the metalized through hole (3) are connected with the metal plane (2) and the corresponding metal patches (1) respectively.
2. The magnetic wall waveguide based on an artificial magnetic conductor structure according to claim 1, characterized in that: the dielectric plate comprises four dielectric substrates (4) which are connected in sequence;
the metal patch (1) is arranged on the inner wall of the dielectric substrate (4), the metal plane (2) is arranged on the outer wall of the dielectric substrate (4), and the metalized through hole (3) is positioned in the dielectric substrate (4).
3. The magnetic wall waveguide based on an artificial magnetic conductor structure according to claim 1, characterized in that: the cross section of the dielectric slab is rectangular, and the length of the long side of the rectangle is larger than that of the wide side.
4. The magnetic wall waveguide based on an artificial magnetic conductor structure according to claim 1, characterized in that: the inner through direction of the dielectric plate is a transmission direction (X), and the metal patches (1) on the inner wall of the dielectric plate are distributed in an array mode along the transmission direction (X).
5. The magnetic wall waveguide based on an artificial magnetic conductor structure according to claim 4, characterized in that: the metal patches (1) are distributed on the inner wall of the dielectric plate in an array mode along the direction perpendicular to the transmission direction (X).
6. The magnetic wall waveguide based on an artificial magnetic conductor structure according to claim 1, characterized in that: the metal patch (1) is rectangular.
7. The magnetic wall waveguide based on an artificial magnetic conductor structure according to claim 1, characterized in that: the metallized through hole (3) is a round hole.
8. The magnetic wall waveguide based on an artificial magnetic conductor structure according to claim 1, characterized in that: the metalized through holes (3) are connected to the middle positions of the corresponding metalized through holes (3).
9. The magnetic wall waveguide based on an artificial magnetic conductor structure according to claim 1, characterized in that: the transmission magnetic field of the magnetic wall waveguide is perpendicular to the magnetic wall waveguide.
10. The magnetic wall waveguide based on an artificial magnetic conductor structure according to claim 1, characterized in that: the electric field of the magnetic wall waveguide is parallel to the transverse magnetic wave or transverse electric wave of the magnetic wall waveguide.
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