CN114447593B - Magnetic current controllable antenna array device - Google Patents
Magnetic current controllable antenna array device Download PDFInfo
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- CN114447593B CN114447593B CN202111632924.XA CN202111632924A CN114447593B CN 114447593 B CN114447593 B CN 114447593B CN 202111632924 A CN202111632924 A CN 202111632924A CN 114447593 B CN114447593 B CN 114447593B
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- antenna
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
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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
Abstract
The application provides a controllable antenna array device of magnetic current, includes: an antenna plane; a metal antenna disposed above the antenna plane; a feed unit connected to the metal antenna; a magnetic flow control unit comprising: one end of the electrical loading unit is connected with the antenna plane; the switch, the one end of switch is passed through the metal connecting wire and is connected with electricity loading unit's the other end, and the other end and the metal antenna of switch are connected, and the electric field at metal antenna edge keeps the state of long magnetic current when the switch disconnection, and electricity loading unit inserts between antenna plane and the metal antenna when the switch switches on, and the magnetic current of the electric field at metal antenna edge is become short magnetic current by long magnetic current. The magnetic flow control unit controls the length of the magnetic flow of the metal antenna, the control of a radiation directional diagram of the metal antenna is realized, the original feed network of the antenna is not required to be changed, or any antenna parasitic unit is not required to be added, the wave beam reconfiguration of the conventional magnetic flow antenna is simply and conveniently realized, and the practical value is high.
Description
Technical Field
The application relates to the technical field of microwave communication, in particular to an antenna array device with controllable magnetic current.
Background
The beam scanning angle of the antenna array is typically achieved by controlling the feed phase of the antenna array arrangement. Or various different parasitic elements are added to the antenna array device, so that the wave beam reconfiguration of the unit antenna is realized.
However, changing the feed phase of the antenna element depends on the reconfigurable or phase shifter of the feed network, adding parasitic structures to the antenna element can increase the area or volume of the antenna element.
Disclosure of Invention
In view of the above, the present application provides an antenna array apparatus with controllable magnetic current, which solves or partially solves the above technical problems.
In view of the above, the present application provides an antenna array apparatus with controllable magnetic current, comprising:
an antenna plane;
a metal antenna disposed above the antenna plane;
a feed unit connected to the metal antenna;
a magnetic flow control unit comprising:
one end of the electrical loading unit is connected with the antenna plane;
the switch, the one end of switch pass through metal connecting wire with electricity loading unit's the other end is connected, the other end of switch with metal antenna connects, when the switch disconnection, the electric field at metal antenna edge keeps the state of long magnetic current, when the switch switches on, electricity loading unit inserts between antenna plane and the metal antenna, the magnetic current of the electric field at metal antenna edge is changed into short magnetic current by long magnetic current.
Further, the magnetic current control unit is arranged on the metal antenna, or between the metal antenna and the antenna plane, or on the antenna plane.
Further, the electrical loading unit includes: a capacitive element connected to the antenna plane; an inductive element connected to the antenna plane.
Further, the electrical loading unit includes: at least one resistor.
Further, the switch is at least one of: electronic switches, relays, MEMS switches, digital switches.
Further, the digital switch includes: a switch body; one end of the first pin is arranged on the switch body, and the other end of the first pin is connected with the metal antenna; one end of the second pin is arranged on the switch body, and the other end of the second pin is connected with the metal connecting wire; and one end of the logic control pin is arranged on the switch body, and the other end of the logic control pin is connected with the logic control circuit so that the logic control circuit can control the on-off of the digital switch through a logic signal.
Further, the metal antenna is a metal patch antenna and/or a slot antenna.
Further, the magnetic current control units are provided in plurality, the plurality of magnetic current control units form an array structure, and the array structure comprises at least one of the following components: linear arrays, planar arrays, conformal arrays.
Further, the magnetic current generated by the metal antenna comprises at least one of: linear magnetic current, annular magnetic current, sawtooth magnetic current and curved magnetic current.
Further, the feeding unit includes: the feed probe and/or microstrip line couples the feed element.
From the above, it can be seen that the antenna array device with controllable magnetic current provided by the application controls the length of the magnetic current of the metal antenna through the magnetic current control unit, so as to realize the control of the radiation directional diagram of the metal antenna, and the method does not need to change the original antenna feed network or add any antenna parasitic unit, thereby simply and conveniently realizing the wave beam reconstruction of the conventional magnetic current antenna, and having very high practical value.
Drawings
In order to more clearly illustrate the embodiments of the present application 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, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an antenna array apparatus with controllable magnetic current according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of an antenna array apparatus with controllable magnetic current according to another embodiment of the present application;
FIG. 3 is a magnetic field schematic of an antenna array apparatus with controllable magnetic flux according to an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a magnetic flow control unit according to an embodiment of the present application;
FIG. 5 is a schematic diagram of magnetic currents when the switch of the embodiment of the present application is open;
FIG. 6 is a schematic diagram of magnetic currents when the switch of the embodiment of the present application is turned on;
FIG. 7 is a schematic diagram of magnetic current simulation when the switch of the embodiment of the present application is turned off;
fig. 8 is a schematic view illustrating magnetic current simulation when the switch of the embodiment of the present application is turned on;
FIG. 9 is a schematic structural diagram of an embodiment of the present application in which 8 magnetic flow control units are provided;
FIG. 10 is a schematic view of a directional angular scan of a radiation pattern of an embodiment of the present application;
fig. 11 is a diagram illustrating an antenna beam width control effect achieved by changing the length of the magnetic flow control unit according to the embodiment of the present application.
Description of reference numerals:
1. an antenna plane;
2. a metal antenna;
3. a power feeding unit;
4. the magnetic current control unit 41, the electrical loading unit 411, the capacitive element 412, the inductive element 413, the via hole 42, the switch 421, the switch body 422, the first pin 423, the second pin 424, the logic control pin 43 and the metal connecting line.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to the accompanying drawings in combination with specific embodiments.
It should be noted that technical terms or scientific terms used in the embodiments of the present application should have a general meaning as understood by those having ordinary skill in the art to which the present application belongs, unless otherwise defined. As used in this application, the terms "first," "second," and the like do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The antenna radiation source control method and the antenna radiation source control device have the advantages that the radiation source characteristics of the antenna unit are fundamentally controlled, the radiation pattern of the antenna array device is controlled, and meanwhile, the complexity of a feed network or other antenna parasitic structures is not increased.
As shown in fig. 1 and 2, the present application provides an antenna array apparatus with controllable magnetic current, comprising:
an antenna plane 1; a metal antenna 2 disposed above the antenna plane 1; a feed unit 3 connected to the metal antenna 2; a magnetic flow control unit 4 (shown in fig. 4) comprising: an electrical loading unit 41, wherein one end of the electrical loading unit 41 is connected with the antenna plane 1; switch 42, switch 42's one end pass through metal connecting wire 43 with electricity loading unit 41's the other end is connected, switch 42's the other end with metal antenna 2 is connected, when switch 42 breaks, the electric field at metal antenna 2 edges keeps the state of long magnetic current, when switch 42 switches on, electricity loading unit 41 inserts between antenna plane 1 and the metal antenna 2, the magnetic current of the electric field at metal antenna 2 edges is changed into short magnetic current by long magnetic current.
In the above solution, the antenna plane 1, the metal antenna 2 and the feeding unit 3 constitute an antenna unit, wherein the feeding unit 3 is an energy transmission line for transmitting energy of the metal antenna 2. A slot is formed between the antenna plane 1 and the metal antenna 2 so that magnetic currents induced by the alternating electric field in the slot radiate (see fig. 3). If the switch 42 is in the off state, the magnetic current control unit 4 is not connected between the antenna plane 1 and the metal antenna 2, so that the magnetic current induced on the slot is not affected, and the magnetic current keeps operating under the state of long magnetic current (as shown in fig. 5 and 7). If the magnetic current of the whole antenna unit needs to be controlled, the switch 42 can be turned on, so that the electrical loading unit 41 is connected between the antenna plane 1 and the metal antenna 2, the electric field at the edge of the metal antenna 2 is changed, the strength of the electric field is reduced, and the magnetic current is changed from long magnetic current to short magnetic current (as shown in fig. 6 and 8). The radiation pattern of the whole antenna element can thus be controlled by means of the magnetic current control unit 4.
Specifically, as shown in fig. 10, a schematic view of the directional angular sweep of the radiation pattern under normal operation. The diagram of the directional angular sweep of the corresponding radiation pattern when varying the length of the magnetic flow control unit 4 is shown in particular in fig. 11. The effect of changing the direction of the magnetic flux radiation can be visually seen by fig. 10 and 11.
According to the scheme, the magnetic flow control unit 4 controls the length of the magnetic flow of the metal antenna 2, so that the control of the radiation directional diagram of the metal antenna 2 is realized, the method does not need to change the original feed network of the antenna or add any antenna parasitic unit, the wave beam reconfiguration of the conventional magnetic flow antenna is simply and conveniently realized, and the practical value is very high.
In some embodiments, the magnetic current control unit 4 is arranged on the metal antenna 2, or between the metal antenna 2 and the antenna plane 1, or on the antenna plane 1. The setting position of magnetic current control unit 4 can be selected according to concrete actual need, and this application preferred mode is for setting up on metal antenna 2, and installation or maintenance are convenient like this, still conveniently control magnetic current control unit 4.
If the electrical loading unit 41 is disposed above the metal antenna 2, the electrical loading unit 41 needs to provide a via 413 on the metal antenna 2, so that the electrical loading unit 41 can be connected to the antenna plane 1 through the via 413. The via hole 413 is not connected to the metal antenna 2, one end of the via hole 413 is connected to the antenna plane 1, and the other end of the via hole 413 is connected to the electrical loading unit 41.
In some embodiments, as shown in fig. 4, the electrical loading unit 41 includes: a capacitive element 411 connected to the antenna plane 1; an inductive element 412 connected to the antenna plane 1.
In practical implementation, the switch 42 is connected to the capacitor element 411 and the inductor element 412 through the metal antenna 2, and the capacitor element 411 and the inductor element 412 are connected to the antenna plane 1, that is, the capacitor element 411 and the inductor element 412 with certain resistance are connected in parallel at two ends of the slot. When the magnetic current needs to be controlled, the switch 42 is switched on, and the parallel current resonance generated by the parallel inductor and the capacitor is utilized to reduce the amplitude of the electric field at the position, so that the magnetic current is reduced.
Here, the resonant frequency of the capacitive element 411 and the inductive element 412 connected in parallel is the operating frequency of the antenna unit.
In some embodiments, the electrical loading unit 41 includes: at least one resistor. Therefore, the resistor can be connected between the metal antenna 2 and the antenna plane 1, and the current is generated at the position of the slot between the metal antenna 2 and the antenna plane 1 by guiding the resistor with a fixed resistance value, so that the amplitude of an electric field is reduced, and the aim of reducing magnetic current is fulfilled.
Wherein, the resistance loaded by the resistor combined by one or more resistors is 200 to 20000 ohms.
In some embodiments, the switch 42 is at least one of: electronic switches, relays, MEMS (Micro-Electro-Mechanical System) switches, digital switches.
The method for controlling the on and off of the switch 42 may be manual control, remote sensing control, or digital logic signal control, specifically, a suitable switch 42 may be selected from various types of switches 42 to be installed according to actual needs, and one of the methods may be selected or a mixture of the methods may be used, which is not limited specifically herein.
In some embodiments, as shown in fig. 4, the digital switch comprises: a switch body 421; a first pin 422, one end of which is disposed on the switch body 421, and the other end of which is connected to the metal antenna 2; a second pin 423 having one end disposed on the switch body 421 and the other end connected to the metal connection line 43; one end of the logic control pin 424 is disposed on the switch body 421, and the other end is used for connecting a logic control circuit, so that the logic control circuit controls the on/off of the digital switch through a logic signal.
Through the scheme, the logic control pin 424 of the digital switch is connected with the logic control circuit through the lead wire, so that digital coding can be carried out through the logic control circuit, a logic control signal (such as a high level or a low level) is sent to the digital switch through the logic control pin 424, and the on-off of the digital switch is controlled through the logic control signal, so that remote control is facilitated.
In some embodiments, the metal antenna 2 is a metal patch antenna and/or a slot antenna. The metal patch antenna can be a linear polarization patch antenna or a circular polarization patch antenna. Thus, the metal antenna 2 is arranged above the antenna plane 1 to form a slot, and magnetic current is induced to radiate through an alternating electric field on the slot.
In some embodiments, the magnetic flow control units 4 are provided in plurality, and the plurality of magnetic flow control units 4 form an array structure, wherein the array structure comprises at least one of the following: linear arrays, planar arrays, conformal arrays. The plurality of magnetic current control units 4 can be arranged according to actual needs, and the arrangement shape can be changed at will as long as corresponding requirements are met. And the switch 42 in each magnetic current control unit 4 can be controlled by a logic control circuit, so that the on-off of each magnetic current control unit 4 can be controlled by a logic signal, the purpose of controlling the magnetic current of the whole antenna unit is further realized, and the magnetic current of the antenna unit can meet various requirements. As shown in fig. 9 in particular, 8 magnetic flow control units 4 are provided.
In some embodiments, the magnetic current generated by the metal antenna 2 comprises at least one of: linear magnetic current, annular magnetic current, saw-tooth magnetic current and curved magnetic current. Specifically, which type of antenna is selected may be selected according to actual needs, and the metal antenna 2 may be provided with one or more antennas, which is not specifically limited herein.
According to the scheme, the antenna array device with controllable magnetic current provided by the embodiment of the application controls the length of the magnetic current of the metal antenna 2 through the magnetic current control unit 4, so that the control of the radiation directional diagram of the metal antenna 2 is realized, the method does not need to change the original feed network of the antenna or add any antenna parasitic unit, the wave beam reconfiguration of the conventional magnetic current antenna is simply and conveniently realized, and the antenna array device with controllable magnetic current has high practical value.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the context of the present application, features from the above embodiments or from different embodiments may also be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the present application as described above, which are not provided in detail for the sake of brevity.
The embodiments of the application are intended to embrace all such alterations, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of the application are intended to be included within the scope of the application.
Claims (9)
1. A magnetically flux controllable antenna array apparatus, comprising:
an antenna plane;
a metal antenna disposed above the antenna plane;
a feed unit connected to the metal antenna;
a magnetic flow control unit comprising:
an electrical loading unit, one end of the electrical loading unit being connected to the antenna plane, the electrical loading unit comprising: a capacitive element connected to the antenna plane; an inductive element connected to the antenna plane;
the switch, the one end of switch pass through metal connecting wire with electricity loading unit's the other end is connected, the other end of switch with metal antenna connects, when the switch disconnection, the electric field at metal antenna edge keeps the state of long magnetic current, when the switch switches on, electricity loading unit inserts between antenna plane and the metal antenna, the magnetic current of the electric field at metal antenna edge is changed into short magnetic current by long magnetic current.
2. The antenna array apparatus with controllable magnetic current according to claim 1, wherein the magnetic current control unit is arranged on the metal antenna, or between the metal antenna and the antenna plane, or on the antenna plane.
3. The magnetically flux controllable antenna array apparatus according to claim 1, wherein said electrical loading unit comprises: at least one resistor.
4. The magnetically flux controllable antenna array apparatus according to claim 1, wherein said switch is at least one of:
electronic switches, relays, MEMS switches, digital switches.
5. The magnetically flux controllable antenna array apparatus according to claim 4, wherein said digital switch comprises:
a switch body;
one end of the first pin is arranged on the switch body, and the other end of the first pin is connected with the metal antenna;
one end of the second pin is arranged on the switch body, and the other end of the second pin is connected with the metal connecting wire;
and one end of the logic control pin is arranged on the switch body, and the other end of the logic control pin is connected with the logic control circuit so that the logic control circuit can control the on-off of the digital switch through a logic signal.
6. The magnetically flux controllable antenna array apparatus according to claim 1, wherein said metal antenna is a metal patch antenna and/or a slot antenna.
7. The antenna array apparatus with controllable magnetic currents according to claim 1, wherein a plurality of magnetic current control units are provided, the plurality of magnetic current control units form an array structure, and the array structure comprises at least one of the following: linear arrays, planar arrays, conformal arrays.
8. The magnetically flux controllable antenna array apparatus according to claim 1, wherein said metallic antenna generates magnetic flux comprising at least one of:
linear magnetic current, annular magnetic current, saw-tooth magnetic current and curved magnetic current.
9. The magnetically flux controllable antenna array apparatus according to claim 1, wherein said feed element comprises: the feed probe and/or microstrip line couples the feed element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111632924.XA CN114447593B (en) | 2021-12-29 | 2021-12-29 | Magnetic current controllable antenna array device |
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| CN202111632924.XA CN114447593B (en) | 2021-12-29 | 2021-12-29 | Magnetic current controllable antenna array device |
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| CN114447593A CN114447593A (en) | 2022-05-06 |
| CN114447593B true CN114447593B (en) | 2022-09-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3837923B2 (en) * | 1998-07-10 | 2006-10-25 | トヨタ自動車株式会社 | Planar polarization antenna system |
| US6914575B2 (en) * | 2003-08-05 | 2005-07-05 | Harris Corporation | Selectable reflector and sub-reflector system using fluidic dielectrics |
| CN101197464B (en) * | 2006-12-05 | 2012-11-21 | 松下电器产业株式会社 | Antenna apparatus and wireless communication device |
| CN101197465B (en) * | 2006-12-05 | 2012-10-10 | 松下电器产业株式会社 | Antenna apparatus and wireless communication device |
| CN101601167B (en) * | 2007-08-03 | 2012-11-28 | 松下电器产业株式会社 | Antenna device |
| US8628453B2 (en) * | 2008-12-05 | 2014-01-14 | Nike, Inc. | Athletic performance monitoring systems and methods in a team sports environment |
| JP2012156859A (en) * | 2011-01-27 | 2012-08-16 | Kyocera Corp | Portable electronic apparatus |
| CN102354798A (en) * | 2011-08-17 | 2012-02-15 | 华南理工大学 | Magnetically controlled beam variable plasma antenna array |
| CN110600873B (en) * | 2019-08-26 | 2020-12-29 | 刘扬 | Circularly polarized antenna using ground potential metal plate radiation technology and design method thereof |
| CN113258307B (en) * | 2021-05-28 | 2022-06-07 | 西安电子科技大学 | E-plane wide and narrow beam switching reconfigurable antenna |
| CN113258281B (en) * | 2021-05-31 | 2021-09-17 | 成都天锐星通科技有限公司 | Magnetoelectric dipole antenna structure and antenna array |
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