CN111725626A - Antenna housing capable of realizing asymmetric transmission and energy isolation of electromagnetic waves through absorption and reconstruction - Google Patents
Antenna housing capable of realizing asymmetric transmission and energy isolation of electromagnetic waves through absorption and reconstruction Download PDFInfo
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- CN111725626A CN111725626A CN202010650250.5A CN202010650250A CN111725626A CN 111725626 A CN111725626 A CN 111725626A CN 202010650250 A CN202010650250 A CN 202010650250A CN 111725626 A CN111725626 A CN 111725626A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
- H01Q1/422—Housings not intimately mechanically associated with radiating elements, e.g. radome comprising two or more layers of dielectric material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0013—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective
- H01Q15/002—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective said selective devices being reconfigurable or tunable, e.g. using switches or diodes
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Abstract
The embodiment of the invention discloses an absorbing and transmitting reconfigurable antenna housing for realizing asymmetric transmission and energy isolation of electromagnetic waves, relates to the technical field of electromagnetic compatibility, and can meet the requirement of respectively realizing asymmetric transmission and energy isolation of small-signal and high-energy electromagnetic waves. The invention comprises the following steps: the broadband polarization rotator is composed of a 3-layer structure including: the front layer and the rear layer are mutually vertical grating structures to form a Fabry-Perot cavity; the middle layer of the broadband polarization rotating body is an elliptic resonance structure inclined by 45 degrees; the switchable absorption-transmission FSR is also composed of a 3-layer structure comprising: the front and rear consumable layers with the same structure are spatially symmetrical with respect to the middle layer; the middle layer of the FSR with switchable absorption and permeation is a lossless layer; and each layer of the FSR with the switchable absorption and permeation is embedded with a PIN tube, a resistor and a capacitor lumped element.
Description
Technical Field
The invention relates to the technical field of electromagnetic compatibility, in particular to an antenna housing capable of realizing asymmetric transmission and energy isolation of electromagnetic waves through absorption and reconstruction.
Background
In a complex electromagnetic environment, any electronic and electric product must ensure normal operation of itself in addition to bearing certain external electromagnetic interference. Generally, radiated interference occurs in the medium surrounding the product, and generally electromagnetic interference emitted through the housing, or interference intruding through the housing, is radiated interference. Conventional protective measures (such as radar absorbing material technology and the like) cannot be simply applied to antenna protection. In fact, it is a pair of contradictions that are difficult to solve in practice to require a radar antenna system to radiate only own radar waves and to suppress external electromagnetic interference signals, resulting in non-reciprocal electromagnetic wave transmission.
At present, no complete theory and system design method is formed for suppressing external interference signals under the condition of ensuring that the radiation performance of the antenna is unchanged or even improved. In practical engineering applications, many anti-interference protections require the use of non-reciprocal electromagnetic materials, such as: the material works with large-scale ferrite materials under the condition of static magnetic field bias, but the materials are difficult to apply to integrated microwave devices and work with antennas. In addition, the working frequency band of the active electronic information equipment is wider and wider, the sensitivity is stronger and stronger, and the integration level is higher and higher, so that higher requirements are provided for designing the electromagnetic interference resistant non-reciprocal antenna cover.
Disclosure of Invention
The embodiment of the invention provides an antenna housing capable of realizing asymmetric transmission and energy isolation of electromagnetic waves through absorption and transmission reconfiguration, and particularly relates to an antenna housing sensitive to incident electromagnetic wave energy. The self-adaptive switching can be realized by utilizing the sensitivity of the PIN tube to the field intensity, and the requirements of realizing asymmetric transmission and energy isolation of small signals and high-energy electromagnetic waves are met.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
the radome is a composite structure, which comprises two parts: a broadband polarization rotator (1) and a switchable FSR (2) of absorption and transmission.
The broadband polarization rotator (1) is composed of a 3-layer structure including: the front layer and the rear layer are mutually vertical grating structures to form a Fabry-Perot (Fabry-Perot) cavity, so that the bandwidth expansion can be realized. The middle layer of the broadband polarization rotator (1) is an elliptic resonance structure inclined by 45 degrees, and the polarization rotation function is realized.
The switchable absorption-transmission FSR (2) is also composed of a 3-layer structure, comprising: the front and back layers with the same structure are symmetrical with respect to the middle layer space, so that the transmission characteristics of electromagnetic waves transmitted in the forward direction and the reverse direction are the same. The intermediate layer of the absorption-transmission switchable FSR (2) is a non-lossy layer and is used to provide a transmission band. And each layer of the Frequency Selective radar wave absorber (FSR) (2) is embedded with a PIN tube, a resistor and a capacitor lumped element.
Under the second working condition, all PIN pipes are conducted, the whole structure achieves the wave absorbing function, and the wave absorbing rate is larger than 90%.
The embodiment of the invention provides an antenna housing capable of realizing asymmetric transmission and energy isolation of electromagnetic waves through absorption and transmission reconfiguration, discloses an antenna housing capable of realizing energy isolation and asymmetric transmission through absorption and transmission reconfiguration, and belongs to the field of electromagnetic compatibility. The device comprises a broadband polarization rotator (1) and a body (FSR) (2) embedded with a PIN tube and capable of realizing absorption and transmission, wherein the broadband polarization rotator is composed of a three-layer composite structure: the grating structure layer is orthogonal up and down, and the middle part of the grating structure layer is an inclined elliptical layer; the imbibition reconfigurable FSR likewise consists of a three-layer structure: the middle non-consumption layer, the upper and lower consumption layers with the same structure are symmetrical with the middle non-consumption layer space, so that the transmission coefficients of the electromagnetic waves incident from the positive direction and the negative direction are the same. The asymmetric transmission of electromagnetic waves can be realized by utilizing the characteristic and combining the polarization rotator. (1) And (2) the physical size of the two parts of structures is consistent with the working frequency band, and the two parts of structures are combined to form an intelligent antenna housing (3). According to the invention, the broadband polarization rotator and the FSR switchable between absorption and transmission are combined, and the asymmetric transmission of electromagnetic waves and the isolation of high-energy electromagnetic waves are realized depending on the change of the state of the PIN tube, and the index requirements of impedance matching and small insertion loss of a pass band are realized. The antenna housing is designed by utilizing a composite structure metamaterial, and the broadband polarization rotating body is ingeniously combined with the FSR with switchable absorption and transmission. When low-power electromagnetic waves enter, the PIN tube is not excited to be in a disconnected state at the moment, the radome is an FSR, signals transmitted by the own antenna can be transmitted in a transmission band, and asymmetric transmission is formed for suppressing electromagnetic signals with the same polarization as that of the antenna on the outside. An absorption band is arranged in front of the transmission band, so that the reduction of out-of-band RCS can be realized, and the stealth protection of the antenna is facilitated; when high-power electromagnetic waves with interference outside enter, the PIN tube is excited and conducted, the antenna housing is a broadband wave absorber, the wave absorbing rate is greater than 90%, energy isolation can be effectively carried out, and the RCS (radar scattering cross section) can be reduced in the whole working bandwidth.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a three-dimensional schematic diagram of a cell structure according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a broadband polarization rotator portion in a cell structure provided in an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a transmission switchable FSR part in a unit structure provided by an embodiment of the present invention;
fig. 4 is an S-parameter curve for asymmetric transmission when a small signal is incident according to an embodiment of the present invention;
fig. 5 is an S-parameter curve when the wave-absorbing shield is used for shielding high-energy interference electromagnetic waves according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The embodiment of the invention provides an absorbing and transmitting reconfigurable antenna housing for realizing asymmetric transmission and energy isolation of electromagnetic waves, which is a composite structure, and the composite structure comprises two parts: a broadband polarization rotator (1) and a switchable FSR (2) of absorption and transmission.
The broadband polarization rotator (1) is composed of a 3-layer structure including: the front layer and the rear layer are mutually vertical grating structures to form a Fabry-Perot (Fabry-Perot) cavity, so that the bandwidth expansion can be realized. The middle layer of the broadband polarization rotator (1) is an elliptic resonance structure inclined by 45 degrees, and the polarization rotation function is realized.
The switchable absorption-transmission FSR (2) is also composed of a 3-layer structure, comprising: the front and back layers with the same structure are symmetrical with respect to the middle layer space, so that the transmission characteristics of electromagnetic waves transmitted in the forward direction and the reverse direction are the same. The intermediate layer of the absorption-transmission switchable FSR (2) is a non-lossy layer and is used to provide a transmission band. And PIN tubes, resistors and capacitor lumped elements are embedded on each layer of the absorption-transmission switchable FSR (2). Under the first working condition, all PIN pipes are in a disconnected state, and the asymmetric transmission of electromagnetic waves can be realized.
Under the second working condition, all PIN pipes are conducted, the whole structure achieves the wave absorbing function, and the wave absorbing rate is larger than 90%.
In practical application, the scheme described in this embodiment may have 2 working conditions: under a first working condition when small signals (less than or equal to about 50 watts) of normal communication power are incident, and under a second working condition when high-power interference electromagnetic wave signals (greater than or equal to about 100 watts) are incident.
Because the state of the PIN tube can be controlled by the magnitude of the external field intensity, when a small signal of normal communication power is incident, the PIN tube is in a disconnected state at the moment, and the asymmetric transmission of electromagnetic waves can be realized. When high-power electromagnetic waves are incident, the induced voltage enables the PIN tube to be conducted, the whole structure achieves a wave absorbing function, the wave absorbing rate is larger than 90%, and the interference of the high-energy electromagnetic waves to the communication antenna can be effectively isolated. The composite structure antenna housing can be self-adaptively switched in state, and accords with the intelligent application prospect. The structure utilizes the polarization rotating structure to realize the torsion of the polarization form of the transmission electromagnetic wave, and then combines the polarization sensitive wave absorber to realize the screening of the transmission electromagnetic wave, thereby achieving the index requirements of asymmetric transmission and absorption shielding of high-energy interference signals, and meeting the actual requirements of the electrical property of the window of the antenna housing and the suppression of the interference signals. The whole structure can realize the switching of wave absorption/wave transmission in an S wave band (2GHz-4GHz), thereby realizing the asymmetric transmission of electromagnetic waves and the shielding of high-energy electromagnetic waves, and having good impedance matching and low insertion loss in the transmission band.
In a preferred embodiment of the present embodiment, the perimeter of each periodic unit structure of the radome is 38mm, and the thickness of the radome is 8.25 cm. All dielectric substrates adopt F4B dielectric material with the relative dielectric constant of 2.65 and the loss tangent of 0.001. All dielectric substrates adopt Rogers 5880 dielectric materials or low relative dielectric constant media. The width of the mutually perpendicular grating structures is 2.25mm, and the spacing is 5.25 mm. The major axis radius of the 45-degree inclined elliptical resonant structure is 24mm, and the minor axis radius is 5.25 mm. The thickness of each dielectric substrate of the broadband polarization rotator (1) is 2mm, and the interlayer spacing is 12.25 mm.
For example, as shown in fig. 1, the structure designed by the invention has a distance D between the broadband polarization rotator (1) and the FSR (2) with switchable absorption and transmission. The circumference of the whole unit structure is 38mm, the whole thickness is about 8.25cm, and all dielectric substrates are made of F4B dielectric material with the relative dielectric constant of 2.65 and the loss tangent of 0.001.
As shown in FIG. 2, the width of the grating structures perpendicular to each other on the front layer and the rear layer of the broadband polarization rotator is 2.25mm, the interval is 5.25mm, the radius of the long axis of the ellipse inclined by 45 degrees is 24mm, the radius of the short axis is 5.25mm, the thickness of each dielectric substrate layer is 2mm, and the interval between the layers is 12.25 mm. The polarization rotator can realize cross polarization rotation between 1.8GHz and 6.2GHz and has the conversion rate of about 1.
In a preferred embodiment of this embodiment, the front and rear sacrificial layers are both 0.5mm thick. The width of the metal strip in the most central position is w1＝2.5mm，w22.8 mm. Width w of metal strip adjacent to said most intermediate position0The spacing between the individual metal strips was 2mm, 5 mm. The resistances of the resistors are respectively R1-80 Ω, R2-30 Ω, and the distance between R2 is 24.7 mm. A capacitance value of 1.4x10-12F and the capacitors are spaced by 36.2 mm. The thickness of the non-consumption layer is 0.5mm, the interval between the two metal blocks is 1.6mm, and the capacitance value of the non-consumption layer is 5x10-9F. The interlayer spacing of the imbibition switchable FSR (2) was 20 mm. All PIN tubes were SMP1345-079 LF.
For example: as shown in FIG. 3, the front and rear layers of the FSR are lossy layers with a thickness of 0.5mm and the width of the most intermediate adjacent metal strip is w1＝2.5mm，w22.8mm, width w of metal strip adjacent thereto0The spacing between the metal strips was 2mm, the resistances of the selected resistors were R1-80 Ω, R2-30 Ω, and the distance between R2 was 24.7mm, respectively, and the capacitance was 1.4x10-12F and are spaced apart by 36.2 mm.
The middle layer is a non-consumption layer with a thickness of 0.5mm, the interval between two metal blocks is 1.6mm, and the capacitance value of the layer is 5x10-9F, selecting SMP1345-079LF for all PIN tubes, and enabling the interval between layers to be 20 mm. The FSR can be switched between wave-transparent and wave-absorbing. The two parts of FIG. 2 and FIG. 3The combination of the spacing of 20mm can design the antenna housing for realizing energy isolation and asymmetric transmission. When the PIN tube is in an off state, asymmetric transmission of electromagnetic waves can be realized, and the through-band insertion loss is only 0.72dB at 3.52 GHz. When the PIN is conducted, the antenna housing can absorb waves between 1.8GHz and 4.4GHz, the wave absorption rate can reach more than 90%, and the antenna housing has a good energy isolation effect on high-power interference signals.
The elliptical resonance unit structure in the broadband polarization rotator used in the invention can be designed into an open circular ring structure, and the same effect can be achieved. All dielectric substrates can use lower loss Rogers 5880 or low relative dielectric constant media, and pass band insertion loss can be further reduced as long as the relative dielectric constant and loss and thickness of the material meet good impedance matching.
The design of this scheme aim at: aiming at the problems in the prior art, the invention aims to provide a novel radome which has excellent electromagnetic performance and can realize the asymmetric transmission and energy isolation of electromagnetic waves through absorption and reconstruction, and the problem in the prior art is solved. Specifically design one kind and inhale and pass through reconfigurable realization electromagnetic wave asymmetric transmission and energy isolation's antenna house, the unit structure includes two part structures: the broadband polarization rotator (1) and the absorption-transmission switchable FSR (2) have the same physical size and working frequency band, and each part comprises a 3-layer structure.
The general design idea lies in that: aiming at the fact that an electronic information system realizes that a radar antenna of an external detection radar emits signals with inner stealth, shielding and isolation can be achieved for external high-power interference signals, and a PIN diode is an important lumped component, so that the design can be changed and switched in a self-adaptive mode between asymmetric transmission and energy isolation. The antenna housing has the advantages that the characteristics that the existing frequency selection antenna housing cannot transmit electromagnetic waves in a one-way mode, electromagnetic characteristics are not abundant, engineering realizability is relatively weak and the like are broken through, and an electromagnetic metamaterial polarization rotating structure, a high-resistance surface, lumped parameter elements and the like are introduced into the design of the antenna housing. The invention utilizes the polarization rotating surface and the wave absorbing surface and combines the PIN tube design to achieve the index requirements of nonreciprocal transmission and absorption shielding of interference signals, so that the actual requirements of the antenna housing window electrical property and clutter suppression are met.
The embodiment of the invention discloses an absorbing and transmitting reconfigurable antenna housing for realizing energy isolation and asymmetric transmission, and belongs to the field of electromagnetic compatibility. The device comprises a broadband polarization rotator (1) and a body (FSR) (2) embedded with a PIN tube and capable of realizing absorption and transmission, wherein the broadband polarization rotator is composed of a three-layer composite structure: the grating structure layer is orthogonal up and down, and the middle part of the grating structure layer is an inclined elliptical layer; the imbibition reconfigurable FSR likewise consists of a three-layer structure: the middle non-consumption layer, the upper and lower consumption layers with the same structure are symmetrical with the middle non-consumption layer space, so that the transmission coefficients of the electromagnetic waves incident from the positive direction and the negative direction are the same. The asymmetric transmission of electromagnetic waves can be realized by utilizing the characteristic and combining the polarization rotator. (1) And (2) the physical size of the two parts of structures is consistent with the working frequency band, and the two parts of structures are combined to form an intelligent antenna housing (3). According to the invention, the broadband polarization rotator and the FSR switchable between absorption and transmission are combined, and the asymmetric transmission of electromagnetic waves and the isolation of high-energy electromagnetic waves are realized depending on the change of the state of the PIN tube, and the index requirements of impedance matching and small insertion loss of a pass band are realized.
The radome with switchable absorption and transmission is designed by utilizing a composite structure metamaterial, and the broadband polarization rotating body is ingeniously combined with the FSR with switchable absorption and transmission. When low-power electromagnetic waves enter, the PIN tube is not excited to be in a disconnected state at the moment, the radome is an FSR, signals transmitted by the own antenna can be transmitted in a transmission band, and asymmetric transmission is formed for suppressing electromagnetic signals with the same polarization as that of the antenna on the outside. An absorption band is arranged in front of the transmission band, so that the reduction of out-of-band RCS can be realized, and the stealth protection of the antenna is facilitated; when high-power electromagnetic waves with interference outside enter, the PIN tube is excited and conducted, the antenna housing is a broadband wave absorber, the wave absorbing rate is greater than 90%, energy isolation can be effectively carried out, and the RCS (radar scattering cross section) can be reduced in the whole working bandwidth.
In summary, the following advantages can be achieved:
(1) aiming at the problem that the existing frequency selection antenna housing can not realize unidirectional transmission, the asymmetric transmission of electromagnetic waves is realized by using a mode that a polarization rotating body and a polarization sensitive wave absorbing body are in cascade connection for the first time.
(2) The invention utilizes the voltage-controlled conductive structure to design the polarization-sensitive wave absorber, so that the wave absorber can be switched between wave-transmitting and wave-absorbing states, and thus, the self-adaptive switching between asymmetric transmission and energy isolation can be realized.
(3) The invention realizes the switching between wave-transmitting and wave-absorbing by loading the lumped element PIN tube and controlling the state of the PIN tube, and is more suitable for the application prospect of intellectualization when applied to the situation of complex communication environment.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the apparatus embodiment, since it is substantially similar to the method embodiment, it is relatively simple to describe, and reference may be made to some descriptions of the method embodiment for relevant points. The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides an inhale and pass through reconfigurable realization electromagnetic wave asymmetric transmission and antenna house of energy isolation which characterized in that, the antenna house is composite construction, and this composite construction includes two parts: a broadband polarization rotator (1) and an FSR (2) with switchable absorption and transmission;
the broadband polarization rotator (1) is composed of a 3-layer structure including: the front layer and the rear layer are mutually vertical grating structures and form a Fabry-Perot (Fabry-Perot) cavity; the middle layer of the broadband polarization rotating body (1) is an elliptic resonance structure inclined by 45 degrees;
the switchable absorption-transmission FSR (2) is also composed of a 3-layer structure, comprising: the front and rear consumable layers with the same structure are spatially symmetrical with respect to the middle layer; the middle layer of the FSR (2) with switchable absorption and permeation is a lossless layer; and each layer of the FSR (2) with switchable absorption and permeation is embedded with a PIN tube, a resistor and a capacitor;
under a first working condition, all PIN tubes are in a disconnected working state;
under the second operating mode, all PIN pipes are in the operating condition that switches on.
2. The radome reconfigurable for realizing asymmetric transmission and energy isolation of electromagnetic waves according to claim 1, wherein the perimeter of each periodic unit structure of the radome is 38mm, and the thickness of each periodic unit structure of the radome is 8.25 cm.
3. The radome for realizing the asymmetric transmission and the energy isolation of the electromagnetic waves by the absorption reconstruction of claim 1 is characterized in that all dielectric substrates are made of F4B dielectric materials with the relative dielectric constant of 2.65 and the loss tangent of 0.001.
4. The radome for realizing asymmetric transmission and energy isolation of electromagnetic waves by reconfigurable absorption according to claim 1, wherein all dielectric substrates are made of Rogers 5880 dielectric materials.
5. The radome for realizing asymmetric transmission and energy isolation of electromagnetic waves by suction and transmission reconfiguration according to claim 1, wherein the width of the grating structures perpendicular to each other is 2.25mm, and the interval is 5.25 mm;
the radius of the long axis of the elliptic resonance structure inclined by 45 degrees is 24mm, and the radius of the short axis is 5.25 mm;
the thickness of each dielectric substrate of the broadband polarization rotator (1) is 2mm, and the interlayer spacing is 12.25 mm.
6. The radome for realizing asymmetric transmission and energy isolation of electromagnetic waves with the reconfigurable absorption and transmission function according to claim 1, wherein the thicknesses of the front and rear lossy layers are both 0.5 mm;
the width of the metal strip in the most central position is w1＝2.5mm，w2＝2.8mm；
Width w of metal strip adjacent to said most intermediate position0The spacing between the individual metal strips was 2mm, 5 mm.
7. The radome reconfigurable by suction and permeation for realizing asymmetric transmission and energy isolation of electromagnetic waves according to claim 6, wherein the resistances of the resistors are respectively R1-80 Ω, R2-30 Ω, and the distance between R2 is 24.7 mm;
a capacitance value of 1.4x10-12F and the capacitors are spaced by 36.2 mm.
8. The radome capable of realizing asymmetric transmission and energy isolation of electromagnetic waves by absorbing and transmitting reconstruction according to claim 1, wherein the thickness of the lossless layer is 0.5mm, the interval between the two metal blocks is 1.6mm, and the capacitance value of the lossless layer is 5x10- 9F。
The interlayer spacing of the imbibition switchable FSR (2) was 20 mm.
9. The radome capable of realizing asymmetric transmission and energy isolation of electromagnetic waves by absorbing and transmitting reconfiguration according to claim 1 is characterized in that SMP1345-079LF is adopted in all PIN tubes.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112968282A (en) * | 2021-01-29 | 2021-06-15 | 中国人民解放军空军工程大学 | Polarization switching super-surface antenna housing |
| CN116796541A (en) * | 2023-06-26 | 2023-09-22 | 中国矿业大学 | Rapid design method of ultra-wideband metamaterial wave absorber |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161800A (en) * | 2015-08-26 | 2015-12-16 | 中国科学院长春光学精密机械与物理研究所 | Double-screen frequency selective surface capable of optimizing electromagnetic transmission characteristics |
| CN106450793A (en) * | 2016-09-12 | 2017-02-22 | 电子科技大学 | Broadband selectivity wave-transparent polarization regulation electromagnetic structure |
| CN108270085A (en) * | 2018-03-05 | 2018-07-10 | 南京航空航天大学 | Inhale integrated frequency-selective surfaces structure thoroughly |
| CN110265780A (en) * | 2019-06-20 | 2019-09-20 | 南京航空航天大学 | A kind of Stealthy reflector Antenna cover of intermediate frequency broadband wave transparent, high and low frequency polarization conversion |
| CN110957583A (en) * | 2019-12-25 | 2020-04-03 | 武汉灵动时代智能技术股份有限公司 | Absorption and penetration integrated metamaterial structure with distributed parameters |
| CN111293441A (en) * | 2020-02-17 | 2020-06-16 | 南京航空航天大学 | Wave absorbing and transmitting integrated wave absorber |
-
2020
- 2020-07-08 CN CN202010650250.5A patent/CN111725626B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161800A (en) * | 2015-08-26 | 2015-12-16 | 中国科学院长春光学精密机械与物理研究所 | Double-screen frequency selective surface capable of optimizing electromagnetic transmission characteristics |
| CN106450793A (en) * | 2016-09-12 | 2017-02-22 | 电子科技大学 | Broadband selectivity wave-transparent polarization regulation electromagnetic structure |
| CN108270085A (en) * | 2018-03-05 | 2018-07-10 | 南京航空航天大学 | Inhale integrated frequency-selective surfaces structure thoroughly |
| CN110265780A (en) * | 2019-06-20 | 2019-09-20 | 南京航空航天大学 | A kind of Stealthy reflector Antenna cover of intermediate frequency broadband wave transparent, high and low frequency polarization conversion |
| CN110957583A (en) * | 2019-12-25 | 2020-04-03 | 武汉灵动时代智能技术股份有限公司 | Absorption and penetration integrated metamaterial structure with distributed parameters |
| CN111293441A (en) * | 2020-02-17 | 2020-06-16 | 南京航空航天大学 | Wave absorbing and transmitting integrated wave absorber |
Non-Patent Citations (3)
| Title |
|---|
| AHMED ABDELMOTTALEB OMAR: ""Multiband and Wideband 90° Polarization Rotators"", 《IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS》 * |
| RATANAK PHON: ""Novel Multifunctional Reconfigurable Active"", 《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》 * |
| 严祥熙、孔祥鲲等: ""覆盖L 波段的宽带隐身雷达天线罩设计"", 《微波学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112968282A (en) * | 2021-01-29 | 2021-06-15 | 中国人民解放军空军工程大学 | Polarization switching super-surface antenna housing |
| CN116796541A (en) * | 2023-06-26 | 2023-09-22 | 中国矿业大学 | Rapid design method of ultra-wideband metamaterial wave absorber |
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| CN111725626B (en) | 2021-07-09 |
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