CN215342978U - Component antenna - Google Patents
Component antenna Download PDFInfo
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- CN215342978U CN215342978U CN202121765994.8U CN202121765994U CN215342978U CN 215342978 U CN215342978 U CN 215342978U CN 202121765994 U CN202121765994 U CN 202121765994U CN 215342978 U CN215342978 U CN 215342978U
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Abstract
The application discloses subassembly antenna includes: the antenna comprises a substrate and a plurality of magnetoelectric film antenna structural members; a plurality of magnetoelectric film antenna structural members are arranged on the substrate in an array element manner; the frequency bands corresponding to the magnetoelectric film antenna structural members are different. Because single antenna bandwidth is narrower, this application carries out the array element equipment with a plurality of magnetoelectric film antenna structure, wherein because the frequency channel that a plurality of magnetoelectric film antenna structure correspond is inequality, so this subassembly antenna just can correspond the antenna of receiving a plurality of frequency channels, has realized the extension of frequency band, has solved current miniaturized antenna because the frequency band that can receive the signal is narrower, is difficult to realize the technical problem of GNSS navigation signal's receipt.
Description
Technical Field
The application relates to the technical field of communication, in particular to a component antenna.
Background
In the modern war, the communication technology has great significance in the field of national defense and military. Meanwhile, the antenna miniaturization technology is continuously and iteratively improved, and a series of miniaturized antennas or antenna miniaturization methods are emerged. Although the conventional magnetoelectric film miniaturized antenna has a small volume, the frequency band capable of receiving signals is narrow, and the GNSS navigation signals are difficult to receive.
SUMMERY OF THE UTILITY MODEL
In view of this, the present application provides a component antenna, which solves the technical problem that the existing miniaturized antenna is difficult to receive GNSS navigation signals due to the narrow frequency band of the receivable signals.
The application provides a component antenna, including: the antenna comprises a substrate and a plurality of magnetoelectric film antenna structural members;
the magnetoelectric film antenna structural members are arranged on the substrate in an array element manner;
and the frequency bands corresponding to the magnetoelectric film antenna structural members are different.
Alternatively,
and the frequency bands corresponding to the magnetoelectric film antenna structural members are different.
Alternatively,
and a plurality of magnetoelectric film antenna structural members are arranged on the substrate in a 2 Xn/2 array, wherein n is the number of the magnetoelectric film antenna structural members.
Alternatively,
the magnetoelectric film antenna structure includes: a magnetostrictive layer, a piezoelectric layer, and an electrode layer;
the magnetostrictive layer comprises a first magnetostrictive layer and a second magnetostrictive layer;
the electrode layers include a first electrode layer and a second electrode layer;
the first magnetostrictive layer, the first electrode layer, the piezoelectric layer, the second electrode layer and the second magnetostrictive layer are sequentially arranged from top to bottom.
Alternatively,
the thickness of the piezoelectric layer is 3 times of the thickness of the magnetostrictive layer.
Alternatively,
the length-width ratio d of the magnetostrictive layer is in the range of [0.5,2 ].
Alternatively,
the thickness of the piezoelectric layer is 10 times the thickness of the electrode layer.
Alternatively,
the substrate is made of nonmetal.
Alternatively,
the substrate is made of silicon.
According to the technical scheme, the method has the following advantages:
the application provides a component antenna, including: the antenna comprises a substrate and a plurality of magnetoelectric film antenna structural members; a plurality of magnetoelectric film antenna structural members are arranged on the substrate in an array element manner; the frequency bands corresponding to the magnetoelectric film antenna structural members are different. Because single antenna bandwidth is narrower, this application carries out the array element equipment with a plurality of magnetoelectric film antenna structure, wherein because the frequency channel that a plurality of magnetoelectric film antenna structure correspond is inequality, so this subassembly antenna just can correspond the antenna of receiving a plurality of frequency channels, has realized the extension of frequency band, has solved current miniaturized antenna because the frequency band that can receive the signal is narrower, is difficult to realize the technical problem of GNSS navigation signal's receipt.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a component antenna according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural view of a magnetostrictive structural member in an embodiment of the application;
FIG. 3 is a dimensional schematic of a magnetostrictive structural member in an embodiment of the application;
FIG. 4 is a schematic structural diagram of an electrode layer according to an embodiment of the present disclosure;
wherein the reference numbers are as follows:
1. a magnetoelectric thin-film antenna structural member; 2. a substrate; 11. a magnetostrictive layer; 12. a piezoelectric layer; 13. and an electrode layer.
Detailed Description
The embodiment of the application provides a component antenna, and solves the technical problem that the existing miniaturized antenna is difficult to receive GNSS navigation signals due to the fact that the frequency band of the receivable signals is narrow.
The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The present application provides a first embodiment of a component antenna, and particularly refers to fig. 1.
The component antenna in this embodiment includes:
a substrate 2 and a plurality of magnetoelectric film antenna structural members 1;
a plurality of magnetoelectric film antenna structural members 1 are arranged on a substrate 2 in an array element manner;
the frequency bands corresponding to the magnetoelectric film antenna structural members 1 are different.
Among the prior art, because single antenna bandwidth is narrower, so this application carries out the array element equipment with a plurality of magnetoelectric film antenna structure 1, wherein because the frequency channel that a plurality of magnetoelectric film antenna structure 1 correspond is inequality, so this subassembly antenna just can correspond the antenna of receiving a plurality of frequency channels, has realized the extension of frequency band, has solved current miniaturized antenna because the frequency band that can receive signal is narrower, is difficult to realize the technical problem of GNSS navigation signal's receipt.
The above is a first embodiment of a component antenna provided in the present application, and the following is a second embodiment of a component antenna provided in the present application, and refer to fig. 1 specifically.
The component antenna in this embodiment includes:
a substrate 2 and a plurality of magnetoelectric film antenna structural members 1;
a plurality of magnetoelectric film antenna structural members 1 are arranged on a substrate 2 in an array element manner;
the frequency bands corresponding to the magnetoelectric film antenna structural members 1 are different.
Further, in one embodiment, the frequency bands corresponding to the plurality of magnetoelectric thin film antenna structural members 1 are different from each other. It is understood that the frequency bands corresponding to the magnetoelectric film antenna structural members 1 may also be partially different.
Further, the magnetoelectric thin film antenna structural members 1 are arranged on the substrate 2 in a 2 xn/2 array, where n is the number of the magnetoelectric thin film antenna structural members 1. It will be appreciated that n is an even number, and that in a 2 x n/2 array, the columns are 2 columns and the rows are n/2 rows.
Further, as shown in fig. 2, the magnetoelectric thin film antenna structural member 1 in the present embodiment includes: a magnetostrictive layer 11, a piezoelectric layer 12, and an electrode layer 13;
the magnetostrictive layer 11 includes a first magnetostrictive layer and a second magnetostrictive layer;
the electrode layer 13 includes a first electrode layer and a second electrode layer;
the first magnetostrictive layer, the first electrode layer, the piezoelectric layer, the second electrode layer and the second magnetostrictive layer are sequentially arranged from top to bottom.
The layered magnetoelectric material has higher magnetoelectric coupling coefficient and lower dielectric loss, has Curie temperature higher than room temperature, and is suitable for preparation of chip-level satellite navigation receiving antennas.
It will be appreciated that the layered magnetoelectric thin-film antenna structure 1 operates in a longitudinal magnetization and perpendicular polarization (L-T) mode.
The piezoelectric layer 12 and the magnetostrictive layer 11 have the optimal thickness ratio and the appropriate length-width ratio of the layers, so that the magnetoelectric voltage coefficient can be maximized. Especially when the antenna operates at a resonant frequency, the component antenna has the best receiving performance, and the bandwidth of the antenna can be expanded by a group array mode.
Specifically, when the dimensions are set, as shown in fig. 3, the thickness of the piezoelectric layer 12 is about 3 times the thickness of the magnetostrictive layer 11, and an optimum thickness ratio is selected before the ME voltage coefficient reaches the saturation state; the length-width ratio (L/W) of the magnetostrictive layer 11 should be between 0.5 and 2 to ensure the magnetoelectric coefficient is at a large level; in addition, the thickness of the electrode layer 13 is preferably kept at about 10% of the piezoelectric layer 12. It will be appreciated that in one embodiment, the magnetostrictive layer 11 has a thickness tmSet to 0.17 um; thickness t of piezoelectric layer 12pSet to 0.51 um; thickness t of electrode layer 13eSet to 0.051 um; the length L of the magnetostrictive layer 11 is set to 1.7 um; the width W of the magnetostrictive layer 11 is set to 0.85 um.
It should be noted that, for the magnetoelectric film antenna structural member 1, the average sound velocity is calculated as follows:
wherein s isB、sERespectively, the mechanical compliance constant matrix of the magnetostrictive layer 11 and the piezoelectric layer 12,
is an element of the first row and the first column of the matrix of mechanical compliance constants of the piezoelectric layer 12,
is the element of the first row and column, n, of the mechanical compliance constant matrix of the magnetostrictive layer 11m、npIs the volume ratio of the magnetostrictive layer 11 to the piezoelectric layer 12, and ρm、ρpThe mass densities of the magnetostrictive layer 11 and the piezoelectric layer 12 are shown, respectively. c. CH、cEIs the mechanical stiffness tensor of the magnetostrictive layer 11, the piezoelectric layer 12, eHIs a stress constant, muSIs the strain-free permeability of the magnetostrictive layer 11.
The operating frequency of the magnetoelectric film antenna structural member 1 depends on the dimensional characteristics of the piezoelectric layer 12, so the center frequency of the antenna is controlled by the length of the piezoelectric layer 12 in the present embodiment. The concrete relation is as follows:
f＝va/2L；
where f is the resonant frequency and L is the length of the piezoelectric layer 12 membrane.
It is understood that, as shown in fig. 4, the first electrode layer and the second electrode layer in this embodiment are both interdigital electrodes.
Further, the material of the substrate 2 is non-metal.
Further, the material of the substrate 2 is silicon.
Specifically, the magnetoelectric film antenna structural member 1 is arranged by 2 × n/2 array elements, so that not only can the frequency bandwidth be expanded, but also the amplitude of output voltage can be increased, and the detection and the receiving of weak navigation signals can be responded. The receiving frequency band bandwidth of each magnetoelectric film antenna structural member 1 is respectively f1,f2,...,fn/2The bandwidth of the component antenna in this embodiment is
It will be appreciated that, due to the small size of the individual magnetoelectric thin-film antenna structures 1, the resulting size of the component antenna still meets the antenna miniaturization requirements.
Among the prior art, because single antenna bandwidth is narrower, so this application carries out the array element equipment with a plurality of magnetoelectric film antenna structure 1, wherein because the frequency channel that a plurality of magnetoelectric film antenna structure 1 correspond is inequality, so this subassembly antenna just can correspond the antenna of receiving a plurality of frequency channels, has realized the extension of frequency band, has solved current miniaturized antenna because the frequency band that can receive signal is narrower, is difficult to realize the technical problem of GNSS navigation signal's receipt.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should 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 in the embodiments of the present application.
Claims (9)
1. A component antenna, comprising: the antenna comprises a substrate and a plurality of magnetoelectric film antenna structural members;
the magnetoelectric film antenna structural members are arranged on the substrate in an array element manner;
and the frequency bands corresponding to the magnetoelectric film antenna structural members are different.
2. The component antenna according to claim 1, wherein the frequency bands corresponding to the plurality of magnetoelectric thin-film antenna structural members are different from each other.
3. The component antenna according to claim 1, wherein a number of the magnetoelectric thin film antenna structures are arranged on the substrate in a 2 xn/2 array, where n is the number of magnetoelectric thin film antenna structures.
4. The component antenna according to claim 1, wherein the magnetoelectric thin film antenna structure comprises: a magnetostrictive layer, a piezoelectric layer, and an electrode layer;
the magnetostrictive layer comprises a first magnetostrictive layer and a second magnetostrictive layer;
the electrode layers include a first electrode layer and a second electrode layer;
the first magnetostrictive layer, the first electrode layer, the piezoelectric layer, the second electrode layer and the second magnetostrictive layer are sequentially arranged from top to bottom.
5. The component antenna of claim 4, wherein the piezoelectric layer has a thickness that is 3 times a thickness of the magnetostrictive layer.
6. The component antenna of claim 4, wherein the length to width ratio d of the magnetostrictive layer is in the range of [0.5,2 ].
7. The component antenna of claim 4, wherein the piezoelectric layer has a thickness that is 10 times a thickness of the electrode layer.
8. The component antenna of claim 1, wherein the substrate is a non-metal.
9. The component antenna of claim 8, wherein the material of the substrate is silicon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121765994.8U CN215342978U (en) | 2021-07-30 | 2021-07-30 | Component antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121765994.8U CN215342978U (en) | 2021-07-30 | 2021-07-30 | Component antenna |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114430105A (en) * | 2022-01-26 | 2022-05-03 | 安徽大学 | Broadband ultralow frequency antenna |
| US11355692B2 (en) * | 2016-05-31 | 2022-06-07 | Northeastern University | Nanoscale radio frequency magnetoelectric antenna |
| CN115000710A (en) * | 2022-05-20 | 2022-09-02 | 安徽安努奇科技有限公司 | Antenna |
| CN116840529A (en) * | 2023-06-09 | 2023-10-03 | 武汉理工大学 | Multi-band low-frequency magnetic signal generator |
| CN118017223A (en) * | 2024-04-03 | 2024-05-10 | 西北工业大学 | Micro-clamping type double-frequency magneto-electric antenna and preparation method and application thereof |
-
2021
- 2021-07-30 CN CN202121765994.8U patent/CN215342978U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11355692B2 (en) * | 2016-05-31 | 2022-06-07 | Northeastern University | Nanoscale radio frequency magnetoelectric antenna |
| CN114430105A (en) * | 2022-01-26 | 2022-05-03 | 安徽大学 | Broadband ultralow frequency antenna |
| CN115000710A (en) * | 2022-05-20 | 2022-09-02 | 安徽安努奇科技有限公司 | Antenna |
| CN115000710B (en) * | 2022-05-20 | 2023-10-13 | 安徽安努奇科技有限公司 | Antenna |
| CN116840529A (en) * | 2023-06-09 | 2023-10-03 | 武汉理工大学 | Multi-band low-frequency magnetic signal generator |
| CN118017223A (en) * | 2024-04-03 | 2024-05-10 | 西北工业大学 | Micro-clamping type double-frequency magneto-electric antenna and preparation method and application thereof |
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