CN109727773A - A kind of variable condenser changing regulation dielectric constant by interface - Google Patents
A kind of variable condenser changing regulation dielectric constant by interface Download PDFInfo
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- CN109727773A CN109727773A CN201811580020.5A CN201811580020A CN109727773A CN 109727773 A CN109727773 A CN 109727773A CN 201811580020 A CN201811580020 A CN 201811580020A CN 109727773 A CN109727773 A CN 109727773A
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Abstract
A kind of variable condenser changing regulation dielectric constant by interface, including the dielectric being arranged between the first metal polar plate and the second metal polar plate, dielectric is combined by the first dielectric and the second dielectric, and the first dielectric and the second dielectric have different permittivity εs1, ε2Wherein second dielectric shape can change under change of external conditions, the present invention is only composed of two different dielectrics, change dielectric dielectric constant by the interface of two kinds of materials of dynamic regulation dielectric substance to change capacitor capacitance, it is not related to complicated structure design, has many advantages, such as that structure is simple, manufacture is easier, the regulative mode of capacitor is simple.
Description
Technical field
The present invention relates to tunable capacitor technical fields more particularly to a kind of changed by interface to regulate and control the variable of dielectric constant
Capacitor.
Background technique
Tunable capacitor has critically important application in electronic technology field, especially in mobile communication system, such as resonance electricity
The fields such as road, tunable optic filter, phase shifter, tunable impedance matching networks, low-noise amplifier, voltage controlled oscillator have weight
It applies.It is general for plane-parallel capacitor, capacitor calculation formulaKnow capacitor C and dielectric dielectric
The spacing of constant, the area of two-plate and two-plate is related, it is possible to be changed by these parameters of quantitative change
The size of capacitor.
Existing tunable capacitor can be divided into manual controlling type and auto-control formula.Manual controlling type is to pass through hand
Dielectric type between the area for changing capacitor two-plate, spacing or pole plate is moved to change the size of capacitor, but this adjustable
Capacitor volume is big, can only regulate and control manually, be of limited application.And auto-control formula can be divided into based on MEMS adjustable electric
Hold, tunable capacitor and varactor based on ferroelectric ceramic thin film, wherein the driving method of MEMS tunable capacitor has electrostatic drive
The advantages of modes such as dynamic, Piezoelectric Driving, electromagnetic drive, thermal drivers, pressure drag driving, have adjustable extent big, high q-factor, but tie
Structure is more complicated, and manufacturing process and process are complicated, expensive；Ferroelectric ceramics capacitor and varactor are mainly by two
Pole plate applies DC voltage bias to change dielectric dielectric constant to adjust capacitor, has manufacturing process fairly simple,
The advantages that relatively simple for structure, but capacitor adjustable extent is smaller.
Experts and scholars' all having focused on research on composite dielectric material in recent years, nanoparticle in composite material
The influence of pattern and distribution to the dielectric properties of compound has widely been studied, in polymer matrix composite dielectric material system
The factors such as the interface between the size of middle filler, pattern and filler and matrix can all influence the dielectric properties of composite material.How
The regulative mode for preparing capacitor is simple, structure is simple, manufacture is relatively easy to the emphasis that capacitor is studied always.
Summary of the invention
The shortcomings that in order to overcome the prior art, it is normal by interface variation regulation dielectric that the purpose of the present invention is to provide a kind of
Several variable condensers, changed by the interface of two kinds of materials of dynamic regulation dielectric substance dielectric dielectric constant to
Change capacitor capacitance, has many advantages, such as that the regulative mode of capacitor is simple, structure is simple, manufacture is easier.
In order to achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of variable condenser changing regulation dielectric constant by interface, including setting is in the first metal polar plate 1 and the
Dielectric between two metal polar plates 2, dielectric are combined by the first dielectric 3 and the second dielectric 4, the first dielectric
3 and second dielectric 4 have different permittivity εs1, ε2, wherein the shape of the second dielectric 4 energy under change of external conditions
Enough change.
First dielectric, 3 material therefor be flexible polymer or by matrix of flexible polymer with dielectric ceramic grain
Son, conducting particles, the composite dielectric material that carbon nanotube is filler, wherein flexible polymer includes but is not limited to PI, PTFE, P
(VDF-TrFE), [P (VDF-TrFE-CTFE)], filler include but is not limited to BaTiO3, PbTiO3, CCTO, Ag, Al, Cu, Ni,
Zn、Fe。
Second dielectric, 4 material therefor, which belongs to, can stimulate light field, electromagnetic field, temperature or PH responsive materials, packet
It includes but is not limited to response type hydrogel, dielectric elastomer, shape-memory polymer.
The change of external conditions is the variation of temperature, electromagnetic field, pressure or PH.
First metal polar plate 1 and 2 material of the second metal polar plate is gold, platinum, silver, copper, aluminium or titanium.
The invention has the benefit that the present invention is only composed of two different dielectrics, complexity it is not related to
Structure design, therefore capacitor has many advantages, such as that structure is simple, manufacture is easier, the regulative mode of capacitor is simple.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1, wherein (a) is the boundary of the first dielectric 3 and the second dielectric 4
There is no the schematic diagrames before variation in face；(b) be under change of external conditions after, the interface of the first dielectric 3 and the second dielectric 4
Schematic diagram after changing.
Fig. 2 is the structural schematic diagram of the embodiment of the present invention 2.
Fig. 3 is the first dielectric 3 of the embodiment of the present invention 3 and the interface form schematic diagram of the second dielectric 4.
Fig. 4 is the first dielectric 3 of the embodiment of the present invention 4 and the interface form schematic diagram of the second dielectric 4.
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawings and examples.
Embodiment 1, referring to Fig.1, a kind of variable condenser changing regulation dielectric constant by interface, including the first metal
Dielectric between pole plate 1 and the second metal polar plate 2 and two metal polar plates, dielectric are by the first dielectric 3 and the second electricity
Medium 4 is combined, and the second dielectric 4 is wrapped in the first dielectric 3 at single-row, the first dielectric 3 and the second dielectric 4 tool
There is different permittivity εs1, ε2, wherein the shape of the second dielectric 4 can change under change of external conditions, to change
Become the contact interface of the first dielectric 3 and the second dielectric 4, and then dielectric effective dielectric constant will change, from
And change the capacitor of capacitor.
First dielectric, 3 material therefor be flexible polymer or by matrix of flexible polymer with dielectric ceramic grain
Son is the composite dielectric material of filler, and wherein flexible polymer includes but is not limited to PI, PTFE, P (VDF-TrFE), [P (VDF-
TrFE-CTFE)], filler includes but is not limited to BaTiO3, PbTiO3, CCTO.
Second dielectric, 4 material therefor belongs to electric field or field drives intellectual material, including but not limited to dielectric
The materials such as elastomer, IPMC.
First metal polar plate 1 and 2 material of the second metal polar plate is gold, platinum, silver, copper, aluminium or titanium.
Embodiment 2, referring to Fig. 2, a kind of variable condenser changing regulation dielectric constant by interface is included in the first gold medal
The light belonged on the dielectric and the second metal polar plate 2 between pole plate 1 and the second metal polar plate 2 and two metal polar plates is logical
Road 5 and external LED light 6；Dielectric is combined by the first dielectric 3 and the second dielectric 4, first dielectric
3 and second dielectric 4 at being vertically arranged, the first dielectric 3 and the second dielectric 4 have different permittivity εs1And ε2,
Wherein the shape of the second dielectric 4 changes under intensity of illumination variation, to change the first dielectric 3 and the second dielectric
4 contact interface, and then dielectric effective dielectric constant will change, to change the capacitor of capacitor.
First dielectric, 3 material therefor be flexible polymer or by matrix of flexible polymer with conducting particles,
Carbon nanotube is the composite dielectric material of filler, and wherein flexible polymer includes but is not limited to PI, PTFE, P (VDF-TrFE), [P
(VDF-TrFE-CTFE)], filler includes but is not limited to Ag, Al, Cu, Ni, Zn, Fe.
Second dielectric, 4 material therefor belongs to light field response intellectual material, and the light that LED light 6 issues is passed through lamp
Optical channel 5 acts on 4 application of the second dielectric, and then changes the shape of the second dielectric 4, and the second dielectric 4 includes but unlimited
In materials such as response type hydrogel, shape-memory polymers.
First metal polar plate 1 and 2 material of the second metal polar plate is gold, platinum, silver, copper, aluminium or titanium.
Embodiment 3, referring to Fig. 3, first dielectric 3 and the second dielectric 4 are at horizontal left and right settings.
Embodiment 4, referring to Fig. 4, second dielectric 4 is wrapped in the first dielectric 3 at array.
Claims (5)
1. a kind of variable condenser for changing regulation dielectric constant by interface, it is characterised in that: including being arranged in the first metal
Dielectric between pole plate (1) and the second metal polar plate (2), dielectric are multiple by the first dielectric (3) and the second dielectric (4)
It closes, the first dielectric (3) and the second dielectric (4) have different permittivity εs1, ε2, wherein the second dielectric (4)
Shape can change under change of external conditions.
2. a kind of variable condenser for changing regulation dielectric constant by interface according to claim 1, it is characterised in that:
Described the first dielectric (3) material therefor be flexible polymer or by matrix of flexible polymer with dielectric ceramic particle, lead
Charged particle, the composite dielectric material that carbon nanotube is filler, wherein flexible polymer includes but is not limited to PI, PTFE, P (VDF-
TrFE), [P (VDF-TrFE-CTFE)], filler include but is not limited to BaTiO3, PbTiO3, CCTO, Ag, Al, Cu, Ni, Zn,
Fe。
3. a kind of variable condenser for changing regulation dielectric constant by interface according to claim 1, it is characterised in that:
Described the second dielectric (4) material therefor, which belongs to, can stimulate light field, electromagnetic field, temperature or PH responsive materials, including but not
It is limited to response type hydrogel, dielectric elastomer, shape-memory polymer.
4. a kind of variable condenser for changing regulation dielectric constant by interface according to claim 1, it is characterised in that:
The change of external conditions is the variation of temperature, electromagnetic field, pressure or PH.
5. a kind of variable condenser for changing regulation dielectric constant by interface according to claim 1, it is characterised in that:
First metal polar plate (1) and the second metal polar plate (2) material is gold, platinum, silver, copper, aluminium or titanium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811580020.5A CN109727773A (en) | 2018-12-24 | 2018-12-24 | A kind of variable condenser changing regulation dielectric constant by interface |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811580020.5A CN109727773A (en) | 2018-12-24 | 2018-12-24 | A kind of variable condenser changing regulation dielectric constant by interface |
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| CN109727773A true CN109727773A (en) | 2019-05-07 |
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| CN201811580020.5A Pending CN109727773A (en) | 2018-12-24 | 2018-12-24 | A kind of variable condenser changing regulation dielectric constant by interface |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110996446A (en) * | 2020-01-03 | 2020-04-10 | 中国计量大学 | Alternating current driven LED device and light emitting method thereof under alternating current power supply |
| CN111405750A (en) * | 2020-04-13 | 2020-07-10 | 南京鑫达泰科技有限公司 | Polyimide buries holds printed circuit |
| CN113270272A (en) * | 2021-04-02 | 2021-08-17 | 章恒 | Solid-state aluminum electrolytic capacitor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508841A (en) * | 2009-03-17 | 2009-08-19 | 武汉理工大学 | Flexible polymer dielectric material for electrical condenser and preparation thereof |
| JP2013051297A (en) * | 2011-08-31 | 2013-03-14 | Murata Mfg Co Ltd | Variable capacitance device |
| CN103951915A (en) * | 2014-04-29 | 2014-07-30 | 上海交通大学 | Lightweight flexible polymer-based high-energy-density material and preparation method thereof |
| CN104882277A (en) * | 2015-05-04 | 2015-09-02 | 北京大学 | Adjustable and controllable capacitor with layered composite structure, and method of adjusting and controlling dielectric through piezoelectric stress |
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2018
- 2018-12-24 CN CN201811580020.5A patent/CN109727773A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508841A (en) * | 2009-03-17 | 2009-08-19 | 武汉理工大学 | Flexible polymer dielectric material for electrical condenser and preparation thereof |
| JP2013051297A (en) * | 2011-08-31 | 2013-03-14 | Murata Mfg Co Ltd | Variable capacitance device |
| CN103951915A (en) * | 2014-04-29 | 2014-07-30 | 上海交通大学 | Lightweight flexible polymer-based high-energy-density material and preparation method thereof |
| CN104882277A (en) * | 2015-05-04 | 2015-09-02 | 北京大学 | Adjustable and controllable capacitor with layered composite structure, and method of adjusting and controlling dielectric through piezoelectric stress |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110996446A (en) * | 2020-01-03 | 2020-04-10 | 中国计量大学 | Alternating current driven LED device and light emitting method thereof under alternating current power supply |
| CN111405750A (en) * | 2020-04-13 | 2020-07-10 | 南京鑫达泰科技有限公司 | Polyimide buries holds printed circuit |
| CN113270272A (en) * | 2021-04-02 | 2021-08-17 | 章恒 | Solid-state aluminum electrolytic capacitor |
| CN113270272B (en) * | 2021-04-02 | 2023-03-28 | 益阳市天成源电子有限公司 | Solid-state aluminum electrolytic capacitor |
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Application publication date: 20190507 |
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