CN117525907A - Beam scanning reflective array antenna based on mechanical magnetic regulation and control - Google Patents
Beam scanning reflective array antenna based on mechanical magnetic regulation and control Download PDFInfo
- Publication number
- CN117525907A CN117525907A CN202311715905.2A CN202311715905A CN117525907A CN 117525907 A CN117525907 A CN 117525907A CN 202311715905 A CN202311715905 A CN 202311715905A CN 117525907 A CN117525907 A CN 117525907A
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- beam scanning
- fss
- permanent magnet
- array antenna
- reflective
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- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- 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
- H01Q15/14—Reflecting surfaces; Equivalent structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/44—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
- H01Q3/46—Active lenses or reflecting arrays
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention discloses a beam scanning reflective array antenna based on mechanical magnetic regulation and control, which is characterized by comprising an FSS reflective unit, a coil assembly and a permanent magnet, wherein the FSS reflective unit is arranged from top to bottom, the permanent magnet is arranged below the coil assembly, and the coil assembly generates force acting with the permanent magnet under the condition of power supply so as to promote the FSS reflective unit to displace. The purposes of realizing the beam scanning requirement in millimeter wave bands and improving the popularity are achieved.
Description
Technical Field
The invention relates to the technical field of low-frequency wireless communication, in particular to a beam scanning reflective array antenna based on mechanical magnetic regulation.
Background
In the prior art, the requirements of beam scanning arrays in civil and military fields are increasing, and how to increase the beam scanning angle and how to realize a high-efficiency beam scanning reflection array are always the key points and difficulties of research. The traditional wave beam scanning reflective array scheme generally adopts radio frequency switches such as PIN, MEMS and the like to realize the regulation and control of the phase of the reflective unit, but the scheme has larger ohmic loss of the Pin switch in a high frequency band, especially when the frequency is increased to a millimeter wave band, so that the insertion loss of the reflective surface unit is increased, and the radiation efficiency of the reflective array is influenced; some enterprises adopt the liquid crystal scheme to realize the beam scanning of the reflective array in the millimeter wave band, but the scheme has high processing cost and is difficult to popularize.
How to realize the beam scanning requirement in millimeter wave band and increase the popularity is a technical problem to be solved in the technical field in the current stage.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
In order to solve the technical problems, the invention provides a beam scanning reflective array antenna based on mechanical magnetic regulation and control, so as to achieve the purposes of realizing the beam scanning requirement in millimeter wave bands and improving the popularity.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the beam scanning reflective array antenna based on mechanical magnetic regulation is characterized by comprising an FSS reflective unit, a coil group and a permanent magnet, wherein the FSS reflective unit is arranged from top to bottom, the permanent magnet is arranged below the coil group, and the coil group generates force acting with the permanent magnet under the condition of power supply so as to promote the FSS reflective unit to displace.
According to the invention, the coil group and the permanent magnet are sequentially arranged below the FSS reflecting unit, and the displacement of the reflecting surface unit is realized by supplying power to the coil and generating attraction or repulsion force with the permanent magnet, so that the change of the phase of the reflecting surface is realized, and the purposes of realizing the beam scanning in millimeter wave bands and improving the popularization rate are achieved.
Further preferably, the coil set includes four coils, and the four coils are uniformly distributed below the FSS reflection unit.
Further preferably, separate energization is performed in each of the four sets of coils.
The invention has the following advantages:
1. according to the invention, the coil group and the permanent magnet are sequentially arranged below the FSS reflecting unit, and the displacement of the reflecting surface unit is realized by supplying power to the coil and generating attraction or repulsion force with the permanent magnet, so that the change of the phase of the reflecting surface is realized, and the purposes of realizing the beam scanning in millimeter wave bands and improving the popularization rate are achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic diagram of a beam scanning reflective array antenna structure based on mechanical magnetic control according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of no-electric excitation of a coil in a beam scanning reflective array antenna based on mechanical magnetic control according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a structure of electrical excitation of a coil in a beam scanning reflective array antenna based on mechanical magnetic control according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a beam scanning reflective array antenna based on mechanical magnetic control in an angle adjustment state of a coil assembly according to an embodiment of the present invention;
corresponding part names are indicated by numerals and letters in the drawings:
FSS reflection unit 2, coil group 3, permanent magnet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The invention provides a beam scanning reflective array antenna based on mechanical magnetic regulation, which has the working principle that a coil group and a permanent magnet are sequentially arranged below an FSS reflective unit, and the displacement of a reflective surface unit is realized by generating attraction or repulsion force with the permanent magnet through supplying power to the coil, so that the change of the phase of the reflective surface is realized, and the purposes of realizing the beam scanning requirement in millimeter wave bands and improving the popularization rate are achieved.
The present invention will be described in further detail with reference to examples and embodiments.
As shown in fig. 1 and fig. 2, a beam scanning reflective array antenna based on mechanical magnetic regulation and control is characterized by comprising an FSS reflective unit 1 (FSS is generally composed of an upper metal layer, a medium layer and a bottom metal layer, which are not described in detail herein), a coil assembly 2 and a permanent magnet 3 arranged below the coil assembly, wherein the coil assembly generates a force acting with the permanent magnet under the condition of power supply, so as to promote the FSS reflective unit to displace.
The coil group comprises four groups of coils, the four groups of coils are uniformly distributed below the FSS reflecting unit, and independent power-on is respectively realized in the four groups of coils.
The specific using steps of the invention are as follows: as shown in fig. 1 and 2, when the reflective array antenna is vertically placed in the actual use process, the coil is placed at the lowest layer and abuts against the permanent magnet due to the gravity;
when current is applied to each coil in the coil group 2, a magnetic field opposite to the magnetic field direction of the permanent magnet is generated, the coil group 2 starts to move upwards under the action of the lorentz force, and when the lorentz force and the gravity reach balance, the position of the coil group is kept unchanged, so that the coil group reaches a stable state. In the practical application process, the heights of the coils at different positions are realized by controlling the current passing through each coil, so that the angle between the whole coil assembly and the horizontal plane is adjusted.
In the specific implementation process, the coil size, the permanent magnet size, the coil material and the weight are required to be weighted.
The corresponding calculation formula is as follows:
if an energized multi-turn coil is considered to be a plurality of current-carrying loops, the force experienced by the energized coil in the Z-direction in the permanent magnet field is the vector sum of the forces experienced by the plurality of current-carrying loops. The received magnetic force is calculated by formulas (1) and (2).
After the weight of the electrified coil is balanced with the magnetic force received in the Z direction, the electrified coil reaches a stable state.
Through the mode, the beam scanning reflective array antenna based on mechanical magnetic regulation provided by the invention has the advantages that the coil group and the permanent magnet are sequentially arranged below the FSS reflective unit, and the displacement of the reflective surface unit is realized by supplying power to the coil to generate attraction or repulsion force with the permanent magnet, so that the change of the phase of the reflective surface is realized, and the purposes of realizing the beam scanning requirement in millimeter wave bands and improving the popularity are achieved.
The foregoing describes a preferred embodiment of a mechanically and magnetically steered beam scanning array antenna, and it should be understood that variations and modifications can be made by those skilled in the art without departing from the inventive concept herein.
Claims (4)
1. The beam scanning reflective array antenna based on mechanical magnetic regulation is characterized by comprising an FSS reflective unit, a coil group and a permanent magnet, wherein the FSS reflective unit is arranged from top to bottom, the permanent magnet is arranged below the coil group, and the coil group generates force acting with the permanent magnet under the condition of power supply so as to promote the FSS reflective unit to displace.
2. The beam scanning array antenna of claim 1, wherein the coil assembly comprises four coils, and the four coils are uniformly distributed below the FSS reflecting unit.
3. The beam scanning reflective array antenna based on mechanical magnetic control as claimed in claim 2, wherein separate energization is implemented in each of the four sets of coils.
4. The beam scanning reflective array antenna based on mechanical magnetic control as claimed in claim 1, wherein the permanent magnet and the FSS reflection unit are used in a one-to-one pairing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311715905.2A CN117525907A (en) | 2023-12-14 | 2023-12-14 | Beam scanning reflective array antenna based on mechanical magnetic regulation and control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311715905.2A CN117525907A (en) | 2023-12-14 | 2023-12-14 | Beam scanning reflective array antenna based on mechanical magnetic regulation and control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117525907A true CN117525907A (en) | 2024-02-06 |
Family
ID=89764613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311715905.2A Pending CN117525907A (en) | 2023-12-14 | 2023-12-14 | Beam scanning reflective array antenna based on mechanical magnetic regulation and control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117525907A (en) |
-
2023
- 2023-12-14 CN CN202311715905.2A patent/CN117525907A/en active Pending
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