CN109449596A - Directional diagram reconstructable flexible antennas based on shape-memory polymer - Google Patents
Directional diagram reconstructable flexible antennas based on shape-memory polymer Download PDFInfo
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- CN109449596A CN109449596A CN201811344259.2A CN201811344259A CN109449596A CN 109449596 A CN109449596 A CN 109449596A CN 201811344259 A CN201811344259 A CN 201811344259A CN 109449596 A CN109449596 A CN 109449596A
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- shape
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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
- H01Q3/01—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 shape of the antenna or antenna system
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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
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Abstract
This disclosure relates to a kind of directional diagram reconstructable flexible antennas based on shape-memory polymer.The antenna includes: shape-memory polymer dielectric layer and antenna oscillator layer；The shape-memory polymer dielectric layer has different steric configurations in different temperatures；The steric configuration of the antenna oscillator layer changes with the variation of the steric configuration of the shape-memory polymer dielectric layer.Pass through reversible transformation of the varying environment temperature correspondingly-shaped memory polymer dielectric layer between different spaces configuration, reversible transformation of the synchronous drive antenna oscillator layer between different spaces configuration, realize the change of antenna radiation pattern, so that an antenna has different antenna patterns under condition of different temperatures, directional diagram reconstructable flexible antennas can simply, be intelligently realized.
Description
Technical field
This disclosure relates to which antenna technical field more particularly to a kind of directional diagram reconstructable based on shape-memory polymer are soft
Property antenna.
Background technique
Shape-memory polymer is the intelligent macromolecule material that one kind " can remember " original shape.Two-way shape is remembered
Recall polymer and multiple shape memory polymer, can change repeatedly between shape and various shapes at two kinds respectively.Shape memory
Polymer is widely used in the fields such as aerospace, biomedicine, flexible electronic due to its unique advantage.
With the continuous development of wireless messages technology, single antenna tends not to meet diversified application and demand, and
There is at high cost, Electro Magnetic Compatibility is poor, designs the disadvantages of complicated again for the integrated design of multiple antennas.In recent years, reconfigurable antenna
Concept be suggested, so-called reconfigurable antenna refers to achieving the effect that mutiple antennas using an antenna, i.e., traditional is single
The performance of antenna is fixed, and the electric property of reconfigurable antenna can be stimulated by external condition and be changed.It is existing
Reconfigurable antenna research be broadly divided into two classes: one kind be using electrically or optically control antenna oscillator on switch realization frequency, side
To figure or polarization direction change, it is another kind of, using mechanical device change antenna oscillator relative position make the index of antenna by
Change according to demand.There is the shortcomings that complicated design, photoelectric interference in the former, and the latter seems heavy due to introducing mechanical device,
Cannot achieve it is portable, miniaturization with it is integrated.
Summary of the invention
In view of this, the present disclosure proposes a kind of directional diagram reconstructable flexible antennas based on shape-memory polymer.It is logical
Cross reversible transformation of the varying environment temperature correspondingly-shaped memory polymer dielectric layer between different spaces configuration, synchronous drive day
Reversible transformation of the linear oscillator layer between different spaces configuration, realizes the change of antenna radiation pattern, so that an antenna is in difference
Have different antenna patterns under the conditions of temperature, can simply, intelligently realize directional diagram reconstructable flexible antennas.
According to the one side of the disclosure, a kind of directional diagram reconstructable flexibility day based on shape-memory polymer is provided
Line, comprising: shape-memory polymer dielectric layer and antenna oscillator layer；
The shape-memory polymer dielectric layer has different steric configurations in different temperatures；
The steric configuration of the antenna oscillator layer with the steric configuration of the shape-memory polymer dielectric layer variation
And change.
In one possible implementation, the difference of adjacent temperature is greater than temperature threshold in the different temperatures.
In one possible implementation, the antenna oscillator layer prints on the shape memory by 3D printing method
The surface of polymer dielectric layer.
In one possible implementation, the antenna oscillator layer with a thickness of 100nm-800nm.
In one possible implementation, the antenna oscillator layer is integrated in the shape memory by photolithographicallpatterned and gathers
The surface of hydrate medium layer.
In one possible implementation, in the steric configuration variation of the antenna oscillator layer, the antenna has
Radiation pattern corresponding with the steric configuration of the antenna oscillator layer.
In one possible implementation, the shape-memory polymer is bidirectional shape memory polymer or multiple shape
Shape memory polymer.
In one possible implementation, the antenna further include: adhesive layer；
The adhesive layer is for bonding the antenna oscillator layer and shape-memory polymer dielectric layer.
In one possible implementation, the antenna oscillator layer is located at the one of the shape-memory polymer dielectric layer
Side or two sides.
In one possible implementation, the antenna is six arm loop aerials.
The reconfigurable flexible antenna is formed by shape-memory polymer dielectric layer and antenna oscillator layer, and shape is remembered
Recall polymer dielectric layer and have different steric configurations in different temperatures, according to the embodiment of the present disclosure based on shape memory polymers
The directional diagram reconstructable flexible antennas of object, can be by varying environment temperature correspondingly-shaped memory polymer dielectric layer in different skies
Between reversible transformation between configuration, reversible transformation of the synchronous drive antenna oscillator layer between different spaces configuration, and then change
The space current of antenna oscillator is distributed, and the change of antenna radiation pattern is realized, so that an antenna has under condition of different temperatures
Different antenna patterns can simply, intelligently realize directional diagram reconstructable flexible antennas.
According to below with reference to the accompanying drawings to detailed description of illustrative embodiments, the other feature and aspect of the disclosure will become
It is clear.
Detailed description of the invention
Comprising in the description and constituting the attached drawing of part of specification and specification together illustrates the disclosure
Exemplary embodiment, feature and aspect, and for explaining the principles of this disclosure.
Fig. 1 is shown according to the directional diagram reconstructable flexible antennas based on shape-memory polymer of one embodiment of the disclosure
Plane configuration sectional view.
Fig. 2 shows according to the directional diagram reconstructable flexible antennas based on shape-memory polymer of one embodiment of the disclosure
Plane configuration sectional view.
Fig. 3 is shown according to the directional diagram reconstructable flexible antennas based on shape-memory polymer of one embodiment of the disclosure
Steric configuration sectional view.
Fig. 4 is shown according to the directional diagram reconstructable flexible antennas based on shape-memory polymer of one embodiment of the disclosure
Schematic diagram.
Fig. 5 is shown according to the directional diagram reconstructable flexible antennas based on shape-memory polymer of one embodiment of the disclosure
The schematic diagram of steric configuration one.
Fig. 6 is shown according to the directional diagram reconstructable flexible antennas based on shape-memory polymer of one embodiment of the disclosure
The schematic diagram of steric configuration two.
Fig. 7 shows empty according to the directional diagram reconstructable flexible antennas based on shape-memory polymer of one embodiment of the disclosure
Between configuration one, steric configuration two the face H directional diagram.
Specific embodiment
Various exemplary embodiments, feature and the aspect of the disclosure are described in detail below with reference to attached drawing.It is identical in attached drawing
Appended drawing reference indicate element functionally identical or similar.Although the various aspects of embodiment are shown in the attached drawings, remove
It non-specifically points out, it is not necessary to attached drawing drawn to scale.
Dedicated word " exemplary " means " being used as example, embodiment or illustrative " herein.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.
In addition, giving numerous details in specific embodiment below to better illustrate the disclosure.
It will be appreciated by those skilled in the art that without certain details, the disclosure equally be can be implemented.In some instances, for
Method, means, element and circuit well known to those skilled in the art are not described in detail, in order to highlight the purport of the disclosure.
Fig. 1 shows the flat of the directional diagram reconstructable flexible antennas according to one embodiment of the disclosure based on shape-memory polymer
Face configuration sectional view.As shown in Figure 1, the directional diagram reconstructable flexible antennas may include: shape-memory polymer dielectric layer
11 and antenna oscillator layer 13；
The shape-memory polymer dielectric layer 11 has different steric configurations in different temperatures；
The steric configuration of the antenna oscillator layer 13 with the shape-memory polymer dielectric layer 11 steric configuration
Change and changes.
The shape-memory polymer dielectric layer 11 has been preset different steric configurations, the shape memory polymers
Object dielectric layer 11 can be constituted for thermotropic shape-memory polymer, correspond to different steric configurations at different temperature, i.e.,
With the variation of temperature, the steric configuration of shape-memory polymer dielectric layer 11 can be with corresponding change.
The antenna oscillator layer 13 can convert the electromagenetic wave radiation transmitted in space for the guided wave transmitted on oscillator
It goes out, alternatively, converting the electromagnetic wave transmitted in space to the guided wave transmitted on oscillator, realizes the radiation and reception of electromagnetic wave
Function.
The antenna oscillator 13 has deformation freedom degree, allows the steric configuration of the antenna oscillator layer 13 with institute
It states the variation of the steric configuration of shape-memory polymer dielectric layer 11 and changes.The steric configuration of the i.e. described antenna oscillator layer 13
(shape) can synchronize deformation with the deformation of shape-memory polymer dielectric layer, be influenced by the steric configuration of antenna oscillator
The distribution of oscillating current realizes oscillating current in the redistribution in space.
The antenna oscillator layer 13 is integrated with shape-memory polymer dielectric layer 11, and for integration mode, the disclosure is not done
It limits.The disclosure is not construed as limiting the material of antenna oscillator, for the steric configuration of shape-memory polymer dielectric layer 11
It is not construed as limiting.
Optionally, the antenna body that the shape-memory polymer dielectric layer 11 and antenna oscillator layer 13 are formed can pass through day
Wire terminal accesses signal processing system and realizes test and application.
The reconfigurable flexible antenna is formed by shape-memory polymer dielectric layer and antenna oscillator layer, and shape is remembered
Recall polymer dielectric layer and have different steric configurations in different temperatures, according to the embodiment of the present disclosure based on shape memory polymers
The directional diagram reconstructable flexible antennas of object, can be by varying environment temperature correspondingly-shaped memory polymer dielectric layer in different skies
Between reversible transformation between configuration, reversible transformation of the synchronous drive antenna oscillator layer between different spaces configuration, and then change
The space current of antenna oscillator is distributed, and the change of antenna radiation pattern is realized, so that an antenna has under condition of different temperatures
Different antenna patterns can simply, intelligently realize directional diagram reconstructable flexible antennas.
In one possible implementation, the difference of adjacent temperature is greater than temperature threshold in the different temperatures.It is described
Temperature threshold can make the corresponding temperature of different spaces configuration that should have larger differentiation, not influenced by ambient temperature, for example, the temperature
Spending threshold value can be 50 DEG C.
In one possible implementation, the antenna oscillator layer 13 can be located at the shape-memory polymer medium
The one or both sides of layer 11.
In one possible implementation, the shape-memory polymer can be bidirectional shape memory polymer or more
Weight shape-memory polymer.The bidirectional shape memory polymer has at two temperatures there are two different steric configurations, and
Described two different steric configurations can reversible transformation, the bidirectional shape memory polymer, for example, ethene-vinyl acetate
Ester copolymer (EVA, ethylene-vinyl acetate copolymer)；The multiple shape memory polymer is in multiple temperature
Degree is lower to have multiple and different steric configurations, and the plurality of different steric configuration being capable of reversible transformation.
Fig. 2 shows according to the directional diagram reconstructable flexible antennas based on shape-memory polymer of one embodiment of the disclosure
Plane configuration sectional view.Fig. 3 shows soft according to the directional diagram reconstructable based on shape-memory polymer of one embodiment of the disclosure
The steric configuration sectional view of property antenna.As shown in Figures 2 and 3, in one possible implementation, the antenna can also wrap
It includes: adhesive layer 12；
The adhesive layer 12 is for bonding the antenna oscillator layer 13 and shape-memory polymer dielectric layer 11.
The adhesive layer 12 can be not influence with adhesiveness and the substance that shape-memory polymer dielectric layer deforms, example
Such as flexible glue water, polydimethylsiloxane (polydimethylsiloxane) adhesive membrane.
So that antenna oscillator layer is combined closely with shape-memory polymer dielectric layer by adhesive layer, can be avoided and become in antenna
During shape, the unsticking of antenna oscillator layer and shape-memory polymer dielectric layer.
In one possible implementation, the antenna oscillator layer can print on the shape by 3D printing method
The surface of memory polymer dielectric layer.Antenna oscillator layer and shape-memory polymer dielectric layer can be realized by not needing adhesive layer
It is integrated.
In one possible implementation, the thickness of the antenna oscillator layer can be 100nm-800nm.
By the thickness for controlling antenna oscillator layer, it is possible to reduce deformation damping.
In one possible implementation, the antenna oscillator is integrated in the shape memory polymers by photolithographicallpatterned
The surface of object dielectric layer.The antenna oscillator can be the metal layer being grown on PI film, can be by institute by photolithographicallpatterned
Metallic layer graphic is stated, and the metal layer is transferred to the surface of shape-memory polymer dielectric layer by way of transfer.
Fig. 4 is shown according to the directional diagram reconstructable flexible antennas based on shape-memory polymer of one embodiment of the disclosure
Schematic diagram.In one possible implementation, as shown in figure 4, the antenna is six arm loop aerials.
As shown in figure 4, the antenna is six arm loop aerials of photoetching Copper thin film preparation, during the antenna feed port is located at
Between, antenna oscillator layer is distributed in shape-memory polymer dielectric layer two sides, for example, as shown in figure 4, antenna oscillator 13 includes ground connection
Layer and wavy radiation patch, the wavy radiation patch are located at the upper surface of shape-memory polymer dielectric layer, institute
State the lower surface that ground plane is located at shape-memory polymer dielectric layer.Wherein, the shape of the ground plane is not construed as limiting, for example,
The shape of ground plane can be plane.
In one possible implementation, in the steric configuration variation of the antenna oscillator layer, the antenna has
Radiation pattern corresponding with the steric configuration of the antenna oscillator layer.
In one example, can be as shown in Fig. 5, Fig. 6 and Fig. 7, the shape-memory polymer is bidirectional shape memory
Polymer, at two temperatures, there are two types of the steric configurations of the antenna oscillator layer: steric configuration one (configuration 1), such as Fig. 5 institute
Show；Steric configuration two (configuration 2), as shown in Figure 6.The corresponding two kinds of aerial radiation sides of two kinds of steric configurations of the antenna oscillator layer
Xiang Tu, such as Fig. 7 (top view of steric configuration one, steric configuration two).
The presently disclosed embodiments is described above, above description is exemplary, and non-exclusive, and
It is not limited to disclosed each embodiment.Without departing from the scope and spirit of illustrated each embodiment, for this skill
Many modifications and changes are obvious for the those of ordinary skill in art field.The selection of term used herein, purport
In the principle, practical application or technological improvement to the technology in market for best explaining each embodiment, or lead this technology
Other those of ordinary skill in domain can understand each embodiment disclosed herein.
Claims (10)
1. a kind of directional diagram reconstructable flexible antennas based on shape-memory polymer characterized by comprising shape memory is poly-
Hydrate medium layer and antenna oscillator layer；
The shape-memory polymer dielectric layer has different steric configurations in different temperatures；
The steric configuration of the antenna oscillator layer becomes with the variation of the steric configuration of the shape-memory polymer dielectric layer
Change.
2. antenna according to claim 1, which is characterized in that the difference of adjacent temperature is greater than temperature in the different temperatures
Threshold value.
3. antenna according to claim 1, which is characterized in that
The antenna oscillator layer prints on the surface of the shape-memory polymer dielectric layer by 3D printing method.
4. antenna according to claim 3, which is characterized in that the antenna oscillator layer with a thickness of 100nm-800nm.
5. antenna according to claim 1, which is characterized in that the antenna oscillator layer is integrated in described by photolithographicallpatterned
The surface of shape-memory polymer dielectric layer.
6. antenna according to claim 1-5, which is characterized in that
In the steric configuration variation of the antenna oscillator layer, the antenna has the steric configuration pair with the antenna oscillator layer
The radiation pattern answered.
7. antenna according to claim 1-5, which is characterized in that the shape-memory polymer is two-way shape
Memory polymer or multiple shape memory polymer.
8. antenna according to claim 1, which is characterized in that the antenna further include: adhesive layer；
The adhesive layer is for bonding the antenna oscillator layer and shape-memory polymer dielectric layer.
9. antenna according to claim 1-5, which is characterized in that the antenna oscillator layer is located at shape note
Recall the one or both sides of polymer dielectric layer.
10. antenna according to claim 1-5, which is characterized in that the antenna is six arm loop aerials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811344259.2A CN109449596A (en) | 2018-11-13 | 2018-11-13 | Directional diagram reconstructable flexible antennas based on shape-memory polymer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811344259.2A CN109449596A (en) | 2018-11-13 | 2018-11-13 | Directional diagram reconstructable flexible antennas based on shape-memory polymer |
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| CN109449596A true CN109449596A (en) | 2019-03-08 |
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Cited By (3)
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| CN110138938A (en) * | 2019-05-21 | 2019-08-16 | 维沃移动通信有限公司 | A kind of terminal device |
| CN110676564B (en) * | 2019-10-11 | 2020-09-04 | 清华大学 | Three-dimensional antenna manufacturing method based on shape memory polymer and three-dimensional antenna |
| GB2590475A (en) * | 2019-12-19 | 2021-06-30 | Thales Holdings Uk Plc | An Expandable transducer |
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Cited By (4)
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| CN110138938A (en) * | 2019-05-21 | 2019-08-16 | 维沃移动通信有限公司 | A kind of terminal device |
| CN110676564B (en) * | 2019-10-11 | 2020-09-04 | 清华大学 | Three-dimensional antenna manufacturing method based on shape memory polymer and three-dimensional antenna |
| GB2590475A (en) * | 2019-12-19 | 2021-06-30 | Thales Holdings Uk Plc | An Expandable transducer |
| GB2590475B (en) * | 2019-12-19 | 2022-02-02 | Thales Holdings Uk Plc | An Expandable transducer |
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