CN115986342B - Polyaniline-based radar switching device and preparation method thereof - Google Patents
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Abstract
The invention relates to the technical field of electromagnetic countermeasure and stealth, in particular to a polyaniline-based radar switching device and a preparation method thereof. The polyaniline-based radar switching device comprises a periodic structure which is periodically arranged along the horizontal direction and the vertical direction, wherein the periodic structure sequentially comprises a first metal patch layer, a first dielectric layer, a first polyaniline material layer, a first conductive tape layer, a first electrolyte layer, a first grid electrode, a supporting dielectric layer, a second grid electrode, a second electrolyte layer, a second conductive tape layer, a second polyaniline material layer, a second dielectric layer and a second metal patch layer. The polyaniline-based radar switching device provided by the invention can improve the wave-transmitting bandwidth, inhibit zero-value recess in the passband, and simultaneously adopt a multipole resonant circuit to design a capacitive surface, thereby realizing miniaturization of the radar switching device.
Description
Technical Field
The invention relates to the technical field of electromagnetic countermeasure and stealth, in particular to a polyaniline-based radar switching device and a preparation method thereof.
Background
The intrinsic state Polyaniline (PANI) belongs to an insulating state, the doped state PANI is a conductive state, and the intrinsic state and the doped state can be reversibly converted through corresponding oxidation-reduction reaction. PANI-based radar switching devices can be obtained by controlling the redox potential. When the electromagnetic wave transmission characteristic of the polyaniline-based radar switching device is in a shielding state and when the electromagnetic wave transmission characteristic is not powered, the polyaniline-based Lei Dakai switching device is in a wave-transparent state, so that the polyaniline-based radar switching device is widely applied to electromagnetic window stealth of weaponry such as airplanes, missiles, ships and the like, and the electromagnetic anti-interference capability of an antenna/a seeker is improved.
The polyaniline is prepared and applied (Wang Xiangong, beijing: science Press, 2019.11), and the polyaniline-based radar switching device generally employs grid electrodes, which are smaller in interval, faster in switching speed, better in reversibility change, and lower in required driving voltage.
However, polarization and angle of the grid electrode cause serious attenuation of the wave-transmitting rate of the polyaniline-based active device, and the simple dependence on the thickness of the polyaniline to improve the shielding performance is at the expense of the wave-transmitting performance, and the Chinese patent CN115360528A published by 11/8 of 2022 reports a radar switching frequency selection surface loaded with the polyaniline, designs the radar switching frequency selection surface based on a method of coupling a capacitive periodic surface and an inductive periodic surface, designs the inductive periodic surface by adopting orthogonal two layers of switching electrodes, and obtains the novel polyaniline-based radar switching device.
The polyaniline-based radar switching device reported in CN115360528A is premised on all transitions to an insulating state at the middle of the two electrodes, i.e., the redox interface. However, due to the different polyaniline doping, polyaniline used in engineering is still in shielding state at the oxidation-reduction junction between two electrodes, for this purpose, chinese patent CN115621686a published by 2023, 1 and 17 discloses a dual-polarized polyaniline radar switching device and a preparation method thereof, the patent combines conductive strips at the oxidation reaction junction between the polyaniline switching electrode and the polyaniline surface to form four inductive metal loops, and designs four metal squares correspondingly to the four inductive metal loops as capacitive functional layers, the center of each inductive metal loop is coincident with the center of each metal square, at this time, the inductive metal loops and the capacitive functional layers form a parallel LC circuit, and the wave-transparent antenna exhibits a bandpass filtering effect when the polyaniline radar switching device is conductive. When the device is closed, the double-layer polyaniline is in a conductive state, and at the same time, the conductive polyaniline cuts off an equivalent LC circuit of the inductive layer and the capacitive layer, the capacitive layer and the inductive layer cannot penetrate waves, and the polyaniline-based radar switch device generates a strong shielding state.
CN115360528A, CN115621686a focuses mainly on how to eliminate the influence of the switching electrode on the wave-transparent radar switching device. However, when the electromagnetic window is stealth and electromagnetic anti-interference is applied, how to optimize the electromagnetic transmission characteristics of the polyaniline-based radar switching device is important, so that the electromagnetic transmission characteristics of the polyaniline-based radar switching device are rectangular, wide-passband and high-wave-transmission in a wave-transmission state.
In the prior art, a method for optimizing electromagnetic transmission characteristics of Chinese patent CN105161800A disclosed in 12 months and 16 days of 2015 is a method adopting a double-screen or multi-screen structure cascade connection. A method of optimizing electromagnetic transmission characteristics of chinese patent CN1825678A disclosed in 8 and 30 2006 is a substrate integrated waveguide technology, but under large-angle irradiation, the electromagnetic transmission characteristics of the above method are seriously degraded in the passband. The teachings of Munk, frequency Selective Surface and GridArray (New York: wiley, 1995), states that methods of optimizing electromagnetic transmission characteristics are highly susceptible to "transcritical coupling states" resulting in degradation of transmission characteristics within the passband, macroscopically manifested as a "null notch" of lower transmissivity within the passband. Although the polyaniline-based radar switching devices reported in CN115360528A, CN115621686a all belong to a multilayer structure, and can optimize respective electromagnetic transmission characteristics, the stopband wave-transparent inhibition is very good, but the bandwidth of the passband and the null notch situation cannot be solved, in CN115360528A patent, the relative bandwidth of 80% of the device wave-transparent is 24%, in CN115621686a patent, the relative bandwidth of 80% of the device wave-transparent is 26%, and the null notch in the model passband is serious.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a polyaniline-based radar switch device and a preparation method thereof, which can improve the passband bandwidth of the radar switch device and inhibit zero value recess in the passband.
In order to achieve the above purpose, the present invention adopts the following specific technical scheme:
the polyaniline-based radar switching device provided by the invention comprises a periodic structure which is periodically arranged along the horizontal direction and the vertical direction;
the periodic structure sequentially comprises a first metal patch layer, a first dielectric layer, a first polyaniline material layer, a first conductive tape layer, a first electrolyte layer, a first grid electrode, a supporting dielectric layer, a second grid electrode, a second electrolyte layer, a second conductive tape layer, a second polyaniline material layer, a second dielectric layer and a second metal patch layer;
the support dielectric layer is used for supporting the first grid electrode and the second grid electrode which are orthogonal;
the first conductive belt layer is a first conductive belt formed by a polyaniline electrochemical reaction transition area, the second conductive belt layer is a second conductive belt formed by a polyaniline electrochemical reaction transition area, the direction of the first conductive belt layer is consistent with the direction of the first grid electrode, and the direction of the second conductive belt layer is consistent with the direction of the second grid electrode;
the first metal patch layer and the second metal patch layer are formed by annular metal patch patterns, the first dielectric layer is used for supporting the annular metal patch patterns in the first metal patch layer, and the second dielectric layer is used for supporting the annular metal patch patterns in the second metal patch layer;
the first grid electrode and the second grid electrode are combined with the first conductive strip and the second conductive strip to form four inductive metal loops, the annular metal patch patterns are used as capacitive functional layers, each inductive metal loop comprises one annular metal patch pattern, and a quadrupole resonance circuit is formed, so that the capacitive periodic surface of the polyaniline radar switch device is optimized, the wave transmission bandwidth of the polyaniline radar switch is improved, and null value pits in a pass band are restrained.
Preferably, the annular metal patch pattern is one of a zigzag annular metal patch pattern and a circular annular metal patch pattern.
Preferably, the first grid electrode is a vertical electrode, and is composed of two first metal strips in the vertical direction; the second grid electrode is a horizontal electrode and is composed of two second metal strips in the horizontal direction, and the width of the second metal strips is consistent with that of the first metal strips.
Preferably, the conductivity of the first polyaniline material layer and the second polyaniline material layer is equal to or more than 10 4 S/m, dielectric loss is between 1 and 3, and thickness is between 2 and 4 mu m.
Preferably, the thickness of the first conductive tape layer and the second conductive tape layer is 0.1mm to 0.2mm.
Preferably, the first electrolyte layer and the second electrolyte layer are ionic liquids, and the dielectric constant of the ionic liquids is between 1 and 6; the loss tangent tan delta of the first electrolyte layer and the second electrolyte layer is less than or equal to 0.01, and the thickness of the first electrolyte layer and the second electrolyte layer is 100 mu m +/-10 mu m.
Preferably, the supporting dielectric layer is a polyimide film.
The preparation method of the polyaniline-based radar switch device provided by the invention comprises the following steps:
s1, respectively manufacturing annular metal patch patterns on the opposite outer sides of a first dielectric layer and a second dielectric layer;
s2, respectively loading a first polyaniline material layer and a second polyaniline material layer doped on the opposite inner sides of the first dielectric layer and the second dielectric layer, wherein the first polyaniline material layer and the second polyaniline material layer respectively form a first conductive tape layer and a second conductive tape layer;
s3, respectively loading a first electrolyte layer and a second electrolyte layer on the opposite inner sides of the first polyaniline material layer and the second polyaniline material layer;
s4, manufacturing a first grid electrode and a second grid electrode on two sides of the supporting dielectric layer respectively, wherein the opposite outer sides of the first grid electrode and the second grid electrode are connected with the first electrolyte layer and the second electrolyte layer respectively.
The invention can obtain the following technical effects:
according to the polyaniline radar switch device provided by the invention, the arrangement mode of the conductive strips at the redox junction of the switching electrode and the polyaniline is comprehensively considered, and the quadrupole resonance circuit is adopted to optimize the capacitive periodic surface of the polyaniline radar switch device, so that the wave-transparent bandwidth of the polyaniline radar switch is improved, and the zero value recess in the passband is inhibited; meanwhile, the polyaniline-based radar switching device provided by the invention adopts a multipolar resonance circuit to design a capacitive surface, so that the miniaturization of the radar switching device can be realized.
Drawings
Fig. 1 is a schematic diagram of a periodic structure of a polyaniline-based radar switching device according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a first metal patch layer or a second metal patch layer in a periodic structure according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a multi-pole resonance equivalent circuit and a monopole resonance equivalent circuit according to an embodiment of the present invention.
Fig. 4 is a schematic view of a circular ring structure of a first metal patch layer or a second metal patch layer in a periodic structure according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a first polyaniline material layer and a first conductive tape layer formed by the first polyaniline material layer in a periodic structure according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a second polyaniline material layer and a second conductive tape layer formed thereby in a periodic structure according to an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a first grid electrode and a supporting dielectric layer in a periodic structure according to an embodiment of the present invention.
Fig. 8 is a schematic structural view of a second grid electrode and a supporting dielectric layer in a periodic structure according to an embodiment of the present invention.
Fig. 9 is a graph of a large angle 50 ° vertical polarization wave transmission curve when the polyaniline-based radar switching device provided in the embodiment of the present invention is powered on.
Wherein reference numerals include:
a first metal patch layer 1, a first dielectric layer 2, a first polyaniline material layer 3, a first conductive tape layer 4, a first electrolyte layer 5, a first grid electrode 6, a supporting dielectric layer 7, a second grid electrode 8, a second electrolyte layer 9, a second conductive tape layer 10, a second polyaniline material layer 11, a second dielectric layer 12, and a second metal patch layer 13.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, like modules are denoted by like reference numerals. In the case of the same reference numerals, their names and functions are also the same. Therefore, a detailed description thereof will not be repeated.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limiting the invention.
The polyaniline-based radar switching device provided by the embodiment of the invention comprises a periodic structure which is periodically arranged along the horizontal direction and the vertical direction; fig. 1 shows a periodic structure of a polyaniline-based radar switching device according to an embodiment of the present invention, and as shown in fig. 1, the periodic structure sequentially includes a first metal patch layer 1, a first dielectric layer 2, a first polyaniline material layer 3, a first conductive tape layer 4, a first electrolyte layer 5, a first grid electrode 6, a supporting dielectric layer 7, a second grid electrode 8, a second electrolyte layer 9, a second conductive tape layer 10, a second polyaniline material layer 11, a second dielectric layer 12, and a second metal patch layer 13; the supporting dielectric layer 7 is used to support the orthogonal first grid electrode 6 and second grid electrode 8.
The first metal patch layer 1 and the second metal patch layer 13 are composed of annular metal patch patterns, the first dielectric layer 2 is used for supporting the annular metal patch patterns in the first metal patch layer 1, and the second dielectric layer 12 is used for supporting the annular metal patch patterns in the second metal patch layer 13.
Fig. 2 shows a structure of a first metal patch layer 1 or a second metal patch layer 13 in a periodic structure provided by the embodiment of the present invention, as shown in fig. 2, the annular metal patch pattern of the first metal patch layer 1 or the second metal patch layer 13 is a loop-shaped metal patch pattern of a loop shape, the period size of the polyaniline-based radar switch device is represented by T, the metal line width of the loop-shaped metal patch of the loop shape is represented by W, the interval between the loop-shaped patterns is represented by S, the side length of the loop-shaped is represented by a, and the arrangement manner ensures that four loop-shaped patterns of the loop-shaped loop shape are included in one period.
Fig. 3 shows the structures of a multi-pole resonance equivalent circuit and a monopole resonance equivalent circuit provided by the embodiment of the invention. The radar switch device represented by patent CN115360528A, CN115621686a has an electromagnetic transmission operating mechanism of capacitive and inductive coupling propagation, and is analyzed from the viewpoint of an equivalent circuit and is monopole resonance. The monopole resonance corresponds to one resonance wavelength, the multipole resonance corresponds to a plurality of resonance wavelengths, and based on the content, the bandwidth of the radar switch device is widened based on the multipole resonance, and the multipole resonance is a quadrupole resonance equivalent circuit corresponding to the annular metal patch pattern.
Fig. 4 shows a circular structure of the first metal patch layer or the second metal patch layer in the periodic structure according to the embodiment of the present invention, and as shown in fig. 4, the circular metal patch pattern of the first metal patch layer 1 or the second metal patch layer 13 may be a circular metal patch pattern.
Fig. 5 and fig. 6 show structures of a first polyaniline material layer and a first conductive tape layer formed by the first polyaniline material layer, and a second polyaniline material layer and a second conductive tape layer formed by the second polyaniline material layer in the periodic structure according to the embodiment of the present invention, as shown in fig. 5 and fig. 6, the first conductive tape layer 4 is a first conductive tape formed by a polyaniline electrochemical reaction transition region, the second conductive tape layer 10 is a second conductive tape formed by a polyaniline electrochemical reaction transition region, the direction of the first conductive tape is consistent with the direction of the first grid electrode 6, and the direction of the second conductive tape is consistent with the direction of the second grid electrode 8. The period size of the first polyaniline material layer 3 and the second polyaniline material layer 11 is T, the vertical conductive strips formed on the first polyaniline material layer 3 are the first conductive strip layers 4, the width size of the first conductive strip layers 4 is denoted by WP, the distance between the first conductive strip layers 4 and the vertical periodic edge is (T-WP)/2, the horizontal conductive strips formed on the second polyaniline material layer 11 are the second conductive strip layers 10, the width size of the horizontal conductive strip layers is denoted by WP, and the distance between the second conductive strip layers 10 and the horizontal periodic edge is also (T-WP)/2.
Fig. 7 and 8 show structures of a first grid electrode and a supporting dielectric layer and a second grid electrode and a supporting dielectric layer in a periodic structure provided by the embodiment of the invention, and as shown in fig. 7 and 8, the period size is also denoted by T, the first grid electrode 6 is a vertical electrode, and the first grid electrode 6 is composed of two first metal strips in the vertical direction; the width of the two first metal strips is expressed by WD/2, and the two first metal strips in the vertical direction are respectively arranged at the periodic edges in the two vertical directions; the second grid electrode 8 is a horizontal electrode, the second grid electrode 8 is composed of two second metal strips in the horizontal direction, the width of the second metal strips is consistent with that of the first metal strips, the width of the second metal strips is also indicated by WD/2, and the two second metal strips in the horizontal direction are respectively arranged at the two periodic edges in the horizontal direction.
In a preferred embodiment, the conductivity of the first polyaniline material layer 3 and the second polyaniline material layer 11 is 10 or more 4 S/m, dielectric loss is 1-3, and thickness is 2-4 mu m; the widths of the first conductive tape layer 4 and the second conductive tape layer 10 are 0.1 mm-0.2 mm; the ionic liquid is used for the first electrolyte layer 5 and the second electrolyte layer 9, the dielectric constant of the ionic liquid is 1-6, the loss tangent value tan delta of the first electrolyte layer 5 and the second electrolyte layer 9 is less than or equal to 0.01, and the thickness of the first electrolyte layer 5 and the second electrolyte layer 9 is 100 mu m plus or minus 10 mu m.
Fig. 9 shows a large-angle 50 ° vertical polarization wave-transmitting curve when the polyaniline-based radar switching device provided by the embodiment of the invention is powered on, and as shown in fig. 9, when the polyaniline-based radar switching device is powered on, under the irradiation of the large-angle 50 °, the wave-transmitting rate is over 80% in the range of 14.5-21 ghz, namely, the relative bandwidth of the transmittance 80% reaches 36%. The reference curve is an electromagnetic transmission characteristic curve of the polyaniline-based radar switching device designed by adopting a monopole resonance equivalent circuit.
The embodiment of the invention also provides a preparation method of the polyaniline-based radar switch device, which comprises the following steps:
s1, respectively manufacturing annular metal patch patterns on the opposite outer sides of a first dielectric layer and a second dielectric layer;
s2, respectively loading a first polyaniline material layer and a second polyaniline material layer doped on the opposite inner sides of the first dielectric layer and the second dielectric layer on the basis of the step S1, wherein the first polyaniline material layer and the second polyaniline material layer respectively form a first conductive tape layer and a second conductive tape layer;
s3, respectively loading a first electrolyte layer and a second electrolyte layer on the opposite inner sides of the first polyaniline material layer and the second polyaniline material layer on the basis of the step S2;
s4, manufacturing a first grid electrode and a second grid electrode on two sides of the supporting dielectric layer respectively, wherein the opposite outer sides of the first grid electrode and the second grid electrode are connected with the first electrolyte layer and the second electrolyte layer respectively.
The following description is presented in further detail in connection with specific embodiments.
The radar switch device with the bandwidth of 80% wave transmission rate covering 14.5 GHz-21 GHz and a large scanning angle of 50 degrees and no zero value recess in the passband is taken as an example.
Preferably, according to the frequency selective surface physical model of the polyaniline-based radar switching device shown in fig. 1, a periodic unit model is built in electromagnetic simulation software, wherein the basic material settings include:
1) The supporting dielectric layer 7 is made of polyimide film, and has a relative dielectric constant ε r =3, loss tangent tan δ=0.005;
2) The first electrolyte layer 5 and the second electrolyte layer 9 use an ionic liquid electrolyte, and have a relative dielectric constant ε r Low loss tangent tan delta=0.008, thickness 100 μm;
3) The relative dielectric constants epsilon of the first polyaniline material layer 3 and the second polyaniline material layer 11 r Loss tangent tan δ=0.005, thickness 3 μm, =3;
4) The first polyaniline material layer 3 and the second polyaniline material layer 11 form a first conductive tape layer 4 and a second conductive tape layer 10, respectively, having a width wp=0.1 mm;
5) The first dielectric layer 2 and the second dielectric layer 12 are made of polyimide plates having a relative dielectric constant ε r Low loss tangent tan delta=0.005, thickness 0.5mm.
Then, adopting electromagnetic simulation software CST or HFSS, feko and other parameter scanning functions to find the optimal geometric characteristics, and finally obtaining the geometric characteristic dimensions of the polyaniline-based radar switch device:
1) The unit period interval T=2.9 mm, the word return line width W=0.1 mm, the interval S=0.1 mm, and the side length a=1.35 mm;
2) Switching electrode width wd=0.1 mm.
Through simulation analysis, when the polyaniline-based radar switch device is powered on, under the irradiation of a large angle of 50 degrees, the wave transmittance is over 80 percent in the range of 14.5-21 GHz, namely the relative bandwidth of 80 percent of the transmittance reaches 36 percent, as shown in fig. 9.
Finally, the second grid electrode 6 and the second grid electrode 8 are prepared by adopting a polyimide film (recommended but not limited to model: GHD051312 AJB) with double-sided copper, the first metal patch layer 1 and the second metal patch layer 13 are prepared by adopting a polyimide film (recommended but not limited to model: GSI13R 18) with single-sided copper, the first metal patch layer 1 and the second metal patch layer 13 are prepared by adopting a standard Printed Circuit Board (PCB) process, an ionic liquid electrolyte and doped polyaniline (namely, the first electrolyte layer 5, the second electrolyte layer 9, the first polyaniline material layer 3 and the second polyaniline material layer 11) are coated on two sides of the first grid electrode 6 and the second grid electrode 8 which are orthogonal, the first polyaniline material layer 3, the first conductive tape layer 4, the first electrolyte layer 5, the first grid electrode 6, the supporting dielectric layer 7, the second grid electrode 8, the second electrolyte layer 9, the second conductive tape layer 10 and the second polyaniline material layer 11 are encapsulated by adopting a polyimide film or a polyolefin film by adopting an ultrasonic spraying process, and the first polyaniline double-sided adhesive (5413) is glued between the first polyaniline material layer 2 and the second polyaniline material layer 3 and the second polyaniline material layer 11, and the final invention is implemented.
The polyaniline-based radar switching device provided by the embodiment of the invention solves the problem of poor electromagnetic transmission characteristics of the polyaniline-based Lei Dakai switching device in the prior art, has a 80% transmittance working relative bandwidth reaching 36%, and inhibits zero value recess in a passband; meanwhile, the polyaniline-based radar switching device provided by the embodiment of the invention adopts a multipolar resonance circuit to design a capacitive surface, so that the miniaturization of the polyaniline-based radar switching device is realized.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
The above embodiments of the present invention do not limit the scope of the present invention. Any of various other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.
Claims (7)
1. A polyaniline-based radar switching device, characterized by comprising a periodic structure periodically arranged in a horizontal direction and a vertical direction;
the periodic structure sequentially comprises a first metal patch layer, a first dielectric layer, a first polyaniline material layer, a first conductive tape layer, a first electrolyte layer, a first grid electrode, a supporting dielectric layer, a second grid electrode, a second electrolyte layer, a second conductive tape layer, a second polyaniline material layer, a second dielectric layer and a second metal patch layer;
the support dielectric layer is used for supporting the first grid electrode and the second grid electrode which are orthogonal;
the first conductive belt layer is a first conductive belt formed by a polyaniline electrochemical reaction transition area, the second conductive belt layer is a second conductive belt formed by a polyaniline electrochemical reaction transition area, the direction of the first conductive belt layer is consistent with the direction of the first grid electrode, and the direction of the second conductive belt layer is consistent with the direction of the second grid electrode;
the first metal patch layer and the second metal patch layer are both composed of the same annular metal patch pattern, the first dielectric layer is used for supporting the annular metal patch pattern in the first metal patch layer, and the second dielectric layer is used for supporting the annular metal patch pattern in the second metal patch layer; the annular metal patch pattern is a reverse-character annular metal patch pattern or a circular annular metal patch pattern;
the first grid electrode, the second grid electrode, the first conductive strip and the second conductive strip are combined to form four inductive metal loops, the annular metal patch patterns are used as capacitive functional layers, each inductive metal loop comprises one annular metal patch pattern, and the inductive metal loops and the capacitive functional layers form a quadrupole resonance circuit.
2. The polyaniline-based radar switching device of claim 1, wherein the first grid electrode is a vertical-direction electrode, the first grid electrode being composed of two first metal strips in a vertical direction; the second grid electrode is a horizontal electrode, and is composed of two second metal strips in the horizontal direction, and the width of the second metal strips is consistent with that of the first metal strips.
3. The polyaniline radar switching device according to claim 1, wherein the conductivity of the first polyaniline material layer and the second polyaniline material layer is equal to or greater than 10 4 S/m, dielectric loss is between 1 and 3, and thickness is between 2 and 4 mu m.
4. The polyaniline-based radar switching device of claim 1, wherein the first and second conductive tape layers have a thickness of 0.1mm to 0.2mm.
5. The polyaniline-based radar switching device of claim 1, wherein the first and second electrolyte layers are ionic liquids having a dielectric constant between 1 and 6; the loss tangent tan delta of the first electrolyte layer and the second electrolyte layer is less than or equal to 0.01, and the thickness of the first electrolyte layer and the second electrolyte layer is 100 mu m +/-10 mu m.
6. The polyaniline-based radar switching device of claim 1, wherein the supporting dielectric layer is a polyimide film.
7. The method of manufacturing a polyaniline-based radar switching device according to any one of claims 1 to 6, comprising the steps of:
s1, respectively manufacturing annular metal patch patterns on the opposite outer sides of a first dielectric layer and a second dielectric layer;
s2, respectively loading a first polyaniline material layer and a second polyaniline material layer doped on the opposite inner sides of the first dielectric layer and the second dielectric layer, wherein the first polyaniline material layer and the second polyaniline material layer respectively form a first conductive tape layer and a second conductive tape layer;
s3, respectively loading a first electrolyte layer and a second electrolyte layer on the opposite inner sides of the first polyaniline material layer and the second polyaniline material layer;
s4, manufacturing a first grid electrode and a second grid electrode on two sides of the supporting dielectric layer respectively, wherein the opposite outer sides of the first grid electrode and the second grid electrode are connected with the first electrolyte layer and the second electrolyte layer respectively.
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