CN107611575B - End-fire antenna based on surface wave waveguide and super surface absorber composite structure - Google Patents
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Abstract
The invention discloses an end-fire antenna based on a surface wave waveguide and super-surface absorber composite structure, and relates to the technical field of microwave antennas. The structure of the end-fire antenna mainly comprises a surface wave waveguide, an excitation patch, a reflector patch, a super-surface absorber and the like. The surface waveguide can conduct surface waves, and can also present the characteristics of a low-pass frequency selection surface at a low frequency and a band-pass frequency selection surface at a high frequency, so that the back single-station RCS of the end-fire antenna in a partial frequency band can be restrained. An excitation patch and a reflector patch positioned above the surface wave waveguide can excite a surface wave in the surface waveguide to propagate in a certain direction and radiate electromagnetic energy due to discontinuities at the edge of the waveguide. In addition, the super-surface absorber can absorb the absorption of electromagnetic waves in a partial frequency band, so that RCS of the end-fire antenna in the frequency band is suppressed. The surface wave waveguide is combined with RCS inhibition of the super-surface absorber, and the end-fire antenna can achieve good end-fire performance and RCS inhibition function in an ultra-wideband range.
Description
Technical Field
The invention belongs to the technical field of microwave antennas, and particularly relates to an end-fire antenna based on a surface wave waveguide and super-surface absorber composite structure.
Background
In recent years, with the development of detection and stealth technologies, the radar cross section RCS of the panel antenna has received more and more attention. The panel antenna is a very special scatterer, and it is often difficult to simultaneously consider the radiation characteristic and the low RCS characteristic. In practice, the lumped/distributed element loading technique and the use of radar absorbing materials are the most common methods for reducing the RCS of an antenna, and both of them work by converting microwave rf energy into heat, but have the disadvantage of deteriorating the radiation performance of the antenna. In recent years, Electromagnetic Band Gap (EBG) structures and metamaterial/surface structures have been widely introduced into the design of low RCS patch antennas, and in-band RCS suppression of the antennas has been effectively achieved, but this is not the case for out-of-band RCS. In addition, a backscattering cancellation strategy is proposed and introduced into the design of low RCS panel antennas, which achieves mutual cancellation of antenna backscattering by means of two artificial periodic surfaces with equal-amplitude and opposite-phase reflection phases, but which has the disadvantage that the RCS suppression bandwidth is generally relatively narrow. Therefore, how to realize ultra-wideband RCS suppression while ensuring the radiation characteristics of the patch antenna is a great challenge in designing a low RCS antenna.
The document "Thin AMC Structure for radio Cross-Section Reduction by using hybrid Frequency Selective surface (Simone Genovesi, Filippo Costa and Acoustic surface, 2012,60(5):2327-2335.) proposes a low-profile planar array antenna based on a hybrid Frequency Selective Surface (FSS), the operating Frequency of the antenna being designed in the stop band of the FSS, while within the pass band, the FSS exhibits a completely transparent property, the global RCS of the pass band array antenna being thereby suppressed therein. The design not only ensures the radar characteristic of the antenna outside the working frequency band, but also ensures the radiation characteristic inside the band. The test result shows that the antenna works at 2.5GHz, and the RCS rejection band is 6-9 GHz. A significant drawback of the application of the pure FSS structure to low RCS antenna designs is that the in-band RCS of the antenna cannot be suppressed.
The document "Wireless band radio Cross-Section Reduction of a Stacked Board array antenna Using a measuring surface (Cheng Huang, Wenbo Pan, Xiaooling Ma and XiangngangLuo, IEEE Antennas and Wireless Production Letters,2015,14: 1369-. The lower layer surface of the double-layer super surface consists of four square patches and four loading resistors, and the effect of the double-layer super surface is to reduce RCS in the working frequency band of the patch antenna. And the super surface of the upper layer consists of a periodic square ring and four loading resistors and aims to absorb incident electromagnetic waves outside the working frequency band of the antenna. Finally, the double-layer super-surface realizes the broadband RCS suppression and does not deteriorate the radiation performance of the designed antenna. However, the RCS rejection bandwidth of this design still has room to be boosted.
End-fire antennas have found widespread use due to their high gain and pattern parallel to the horizontal plane, and it is therefore of great interest to focus RCS suppression on the design of flat-panel end-fire antennas. The document "Vivaldi antenna with reduced RCS using half-mode waveguide integrated waveguide (Yonggtao Jia, Ying Liu, YuwenHao and Shuxi Gong, Electronics Letters,2014,50(5), pp.345-346.) designs a Vivaldi antenna based on a half-mode substrate integrated waveguide. Compared with the traditional Vivaldi antenna, the designed antenna can realize RCS reduction of up to 24dB without influencing the radiation performance of the antenna. However, the bandwidth suppressed by the antenna RCS is not wide enough.
For a flat-panel endfire antenna with ultra-wideband RCS suppression, it is a very challenging technical problem to achieve both the reduction of the antenna RCS in the ultra-wideband and to ensure that the endfire performance of the flat-panel antenna is not deteriorated.
Disclosure of Invention
The present invention is directed to overcoming the above-mentioned problems and providing an end-fire antenna based on a composite structure of a surface wave waveguide and a super-surface absorber.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an end-fire antenna based on a surface wave waveguide and super surface absorber composite structure can ensure good radiation performance of a slot antenna and simultaneously realize back single station RCS reduction in an ultra wide band, and comprises a super surface absorber part, a radiation patch antenna part, a surface wave waveguide part and a feed part; the super surface absorber part comprises periodically arranged resistance loaded square ring units and an upper dielectric substrate 1; each resistor-loaded square ring unit comprises a square ring patch 2 and four loading resistors 3; the radiating patch antenna part comprises a strip-shaped radiating patch 4 and three parasitic strip-shaped reflector patches 5; the strip-shaped radiation patch 4 and the parasitic strip-shaped reflector patch 5 are both printed on the upper surface of the middle-layer dielectric substrate 6; the surface wave waveguide part comprises a bottom layer medium substrate 8 and an I-shaped periodic unit; each I-shaped unit in the I-shaped periodic units comprises an upper layer square patch 7, a lower layer square patch 9 and a cylindrical metal probe 11 penetrating through a bottom layer dielectric substrate 8; the power feeding part comprises a power feeding metal probe 10, an SMA joint 12 and a short circuit metal probe 13;
the square-ring patch 2 and the loading resistor 3 are both positioned on the upper surface of the upper-layer dielectric substrate 1; the strip-shaped radiation patch 4 and the parasitic strip-shaped reflector patch 5 are both positioned on the upper surface of the middle-layer dielectric substrate 6; the upper square patch 7 of the I-shaped unit is positioned on the lower surface of the middle dielectric substrate 6; the lower surface of the middle layer dielectric substrate 6 is superposed with the upper surface of the bottom layer dielectric substrate 8; the lower layer square patch 9 of the I-shaped unit is positioned on the lower surface of the bottom layer dielectric substrate 8; an air gap with the thickness of 8mm is formed between the upper-layer dielectric substrate 1 and the middle-layer dielectric substrate 6; the I-shaped cylindrical metal probe 11 penetrates through the bottom layer dielectric substrate 8 and is connected with the upper layer square patch 7 and the lower layer square patch 9 of the I-shaped unit; the SMA connector 12 is positioned on the lower surface of the bottom layer medium substrate 8; the feed metal probe 10 penetrates through the middle-layer dielectric substrate 6 and the bottom-layer dielectric substrate 8 and is connected with the strip-shaped metal patch 4 and the SMA connector 12; the short circuit metal probe 13 penetrates through the middle-layer dielectric substrate 6 and the bottom-layer dielectric substrate 8 and is connected with the strip-shaped metal patch 4 and the lower-layer square patch 9 of the I-shaped unit;
the antenna is fed through a feed metal probe 10, a short circuit metal probe 13 and an SMA joint 12; the excitation signal is transited to the strip-shaped metal patch 4 through the feed metal probe 10, so that a dipole radiator is formed under the action of the feed metal probe 10 and the short circuit metal probe 13, and the surface wave in the surface wave waveguide is excited; the radiation characteristic of the antenna mainly comes from the surface wave of the excitation patchSurface wave radiation excited in the waveguide. The surface wave waveguide adopts a vertically symmetrical periodic structure, and can be equivalent to a medium with a very high dielectric constant in the x direction. According to snell's law of refraction, a higher refractive index (dielectric constant) can achieve total reflection and thus can propagate surface waves. The excitation signal is transited to the excitation patch through the excitation probe to excite TE in the surface waveguide0A surface wave in a mode, the surface wave propagating along a ± x direction. Meanwhile, due to the existence of the reflector patch, the surface wave along the-x direction is suppressed, and the surface wave propagating along the + x direction radiates energy outwards at the edge of the waveguide due to discontinuity, so that the end fire effect of the antenna is realized. The resonant frequency of the antenna is designed to be where the equivalent dielectric constant of the surface waveguide is largest.
The scattering suppression of the antenna is mainly completed by the surface wave waveguide part and the super-surface absorber part. The surface wave waveguide exhibits a frequency selective surface characteristic for an electromagnetic wave irradiated from the + z direction, which exhibits a low pass at a low frequency, a band pass at a higher frequency, and a complete reflection at an intermediate frequency band. Therefore, the whole structure of the antenna is in a completely transparent state in the low-pass and band-pass frequency bands of the surface waveguide, so that the RCS of the antenna can be reduced; in the fully anti-rf band, the surface waveguide behaves as a Perfect Electrical Conductor (PEC), thereby enabling the super-surface absorber portion to operate to absorb away the impinging electromagnetic waves, achieving RCS suppression of the antenna in that band. On the whole, the antenna realizes RCS suppression in the three frequency bands, and the low RCS design in the ultra-wide band is formed by combining the three frequency bands.
The invention has the beneficial effects that:
(1) the invention provides a surface wave end-fire antenna which is different from a common plane end-fire antenna in principle, mainly realizes an end-fire effect through surface wave radiation and has good radiation gain and front-back ratio characteristics;
(2) the invention perfectly combines the scattering absorption performance of the super surface absorber with the surface wave waveguide to select the surface characteristics for the frequency of the vertical incident wave, and the composite structure formed by the super surface absorber and the surface wave waveguide can realize the low RCS effect in the ultra-wideband frequency range;
(3) the invention combines the surface wave propagation capability of the surface wave waveguide and the surface characteristic of the frequency selection of the vertical incident wave, so that the surface wave waveguide can support the propagation of the surface wave and further form end-fire radiation at the edge, and the low RCS design can be realized on partial frequency bands.
(4) The invention finally realizes the end-fire radiation performance of the panel antenna and the low RCS design in the ultra-wideband frequency range. By implementing the invention, the stealth performance and the communication function of the antenna in airborne, carrier-borne and vehicle-mounted applications can be effectively enhanced.
Drawings
FIG. 1 is a side view of an antenna according to the present invention;
FIG. 2 is a top view of the antenna of the present invention;
fig. 3 is a bottom view of the antenna of the present invention;
FIG. 4 is a schematic view of the AA cross-section of FIG. 1;
FIG. 5 is a schematic view of a BB section in FIG. 1;
FIG. 6 is a schematic diagram of the structure of a resistively loaded quad ring unit in the super surface absorber section provided by the present invention;
FIG. 7 is a schematic diagram of the structure of an I-shaped element in a surface wave waveguide section provided by the present invention;
FIG. 8 is a schematic diagram of a composite structure of resistively loaded square ring elements in the super surface absorber section and I-shaped elements in the 9 surface wave waveguide sections provided by the present invention;
FIG. 9 is a simulated S-parameter curve of the periodic structure composed of the composite structure of FIG. 9 under the irradiation condition of electromagnetic waves from top to bottom;
FIG. 10 is a side view of a reference antenna configuration provided by the present invention;
FIG. 11 is a simulation plot of the reflection coefficient of the antenna of the present invention;
FIG. 12 is a simulated radiation pattern at 4.2GHz frequency for an antenna according to the invention;
FIG. 13 is a simulation plot of a back single station RCS of the antenna of the present invention with a reference antenna under TE polarized incident wave conditions;
FIG. 14 is a plot of back-directed single-station RCS rejection of an antenna of the present invention versus a reference antenna under TM-polarized incident wave conditions;
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments.
The side view of the end-fire antenna based on the surface wave waveguide and super surface absorber composite structure is shown in fig. 1, the end-fire antenna can ensure good radiation performance of a slot antenna and simultaneously realize back single-station RCS reduction in an ultra wide band, and comprises a super surface absorber part, a radiation patch antenna part, a surface wave waveguide part and a feed part; the super surface absorber part comprises periodically arranged resistance loaded square ring units and an upper dielectric substrate 1; each resistor-loaded square ring unit comprises a square ring patch 2 and four loading resistors 3; the radiating patch antenna part comprises a strip-shaped radiating patch 4 and three parasitic strip-shaped reflector patches 5; the strip-shaped radiation patch 4 and the parasitic strip-shaped reflector patch 5 are both printed on the upper surface of the middle-layer dielectric substrate 6; the surface wave waveguide part comprises a bottom layer medium substrate 8 and an I-shaped periodic unit; each I-shaped unit in the I-shaped periodic units comprises an upper layer square patch 7, a lower layer square patch 9 and a cylindrical metal probe 11 penetrating through a bottom layer dielectric substrate 8; the power feeding part comprises a power feeding metal probe 10, an SMA joint 12 and a short circuit metal probe 13;
the square-ring patch 2 and the loading resistor 3 are both positioned on the upper surface of the upper-layer dielectric substrate 1; the strip-shaped radiation patch 4 and the parasitic strip-shaped reflector patch 5 are both positioned on the upper surface of the middle-layer dielectric substrate 6; the upper square patch 7 of the I-shaped unit is positioned on the lower surface of the middle dielectric substrate 6; the lower surface of the middle layer dielectric substrate 6 is superposed with the upper surface of the bottom layer dielectric substrate 8; the lower layer square patch 9 of the I-shaped unit is positioned on the lower surface of the bottom layer dielectric substrate 8; an air gap with the thickness of 8mm is formed between the upper-layer dielectric substrate 1 and the middle-layer dielectric substrate 6; the I-shaped cylindrical metal probe 11 penetrates through the bottom layer dielectric substrate 8 and is connected with the upper layer square patch 7 and the lower layer square patch 9 of the I-shaped unit; the SMA connector 12 is positioned on the lower surface of the bottom layer medium substrate 8; the feed metal probe 10 penetrates through the middle-layer dielectric substrate 6 and the bottom-layer dielectric substrate 8 and is connected with the strip-shaped metal patch 4 and the SMA connector 12; the short circuit metal probe 13 penetrates through the middle-layer dielectric substrate 6 and the bottom-layer dielectric substrate 8 and is connected with the strip-shaped metal patch 4 and the lower-layer square patch 9 of the I-shaped unit;
the top view structure of the surface wave end-fire antenna of this embodiment is shown in fig. 2, and corresponds to the upper surface of the super-surface absorber portion, and is mainly composed of 15 periodically arranged resistance-loaded square-ring units and an upper dielectric substrate 1, and each resistance-loaded square-ring unit is composed of a square-ring patch 2 and four loading resistors 3.
The bottom view structure of the flat-plate end-fire antenna of this embodiment is shown in fig. 3, which corresponds to the lower surface of the surface wave waveguide portion. The surface wave waveguide part mainly comprises a bottom dielectric substrate 8 and 9 multiplied by 17I-shaped periodic units, and each I-shaped unit comprises an upper square patch 7, a lower square patch 9 and a cylindrical metal probe 11 penetrating through the bottom dielectric substrate 8.
A schematic diagram of the cross-section AA in fig. 1 is shown in fig. 5, corresponding to the upper surface of the antenna part of the radiating patch, where the strip radiating patch 4 is the radiating patch and the other three parasitic strip reflector patches 5 with slightly longer lengths are the reflector patches, all of which are printed on the intermediate layer dielectric substrate 6. The schematic diagram of BB cross section in fig. 1 is shown in fig. 4, corresponding to the upper surface of the surface wave waveguide portion.
The super-surface absorber portion of the flat-panel end-fire antenna of this embodiment is a periodic structure, and the unit structure thereof is shown in fig. 6. The loading resistor is used for absorbing incident electromagnetic waves and converting electromagnetic energy into heat energy. An additional condition for the periodic structure to resonate-absorb is that it requires a PEC structure underneath, which can be realized by a surface wave waveguide.
The surface wave waveguide portion of the flat plate endfire antenna of this embodiment is also a periodic structure, the unit structure of which is shown in fig. 7. In the x directionIn view of the above, the surface wave waveguide can be equivalent to a medium with a very high dielectric constant. According to snell's law of refraction, a higher refractive index (dielectric constant) can achieve total reflection and thus can propagate surface waves. The excitation signal is transited to the excitation patch through the excitation probe to excite TE in the surface waveguide0A surface wave in a mode, the surface wave propagating along a ± x direction. Meanwhile, due to the existence of the reflector patch, the surface wave along the-x direction is suppressed, and the surface wave propagating along the + x direction radiates energy outwards at the edge of the waveguide due to discontinuity, so that the end fire effect of the antenna is realized. The resonant frequency of the antenna is designed to be where the equivalent dielectric constant of the surface waveguide is largest. On the other hand, the surface wave waveguide exhibits a frequency selective surface characteristic for an electromagnetic wave irradiated from the + z direction, which exhibits a low pass at a low frequency, a band pass at a higher frequency, and a complete reflection at an intermediate frequency band. Therefore, the whole structure of the antenna is in a completely transparent state in the low-pass and band-pass frequency bands of the surface waveguide, so that the RCS of the antenna can be reduced; in the fully anti-rf band, the surface waveguide behaves as a PEC, thereby enabling the super-surface absorber to operate partially, absorbing the impinging electromagnetic waves and achieving RCS suppression of the antenna in this band.
The combination of the surface wave waveguide and the super surface absorber can be regarded as a composite structure which is also a periodic structure, and the schematic diagram of the unit structure is shown in fig. 8. The composite structure unit consists of a resistor-loaded square ring unit and 9I-shaped units. For this composite structure, when there is irradiation of an electromagnetic wave from the + z direction, the S-parameter curve obtained by the simulation is shown in fig. 9. As can be seen from the figure, in the frequency bands of 0 to 2GHz and 9.5 to 11.5GHz, the composite structure can directly penetrate through the electromagnetic wave because the surface wave waveguide is represented as a frequency selective surface of the pass band, in the frequency band of 2 to 9.5GHz, the surface wave waveguide is represented as PEC, and the super surface absorber plays a role of absorbing the energy of the electromagnetic wave and converts the incident electromagnetic energy into heat on the resistor. Therefore, the two frequency bands are combined, and the composite structure can realize low RCS performance in the frequency band of 0-11.5 GHz.
In order to compare the radiation and radar characteristics of the flat-panel end-fire antenna of this embodiment, a reference antenna is given as a comparison, and the side view structure is shown in fig. 10. The reference antenna retains the intermediate dielectric substrate 6, the bottom dielectric substrate 8, the strip-shaped metal patches 4 and 5, the strip-shaped patch 4 via the feed metal probe 10, the SMA contact 12 and the shorting metal probe 13. On the lower surface of the interlayer dielectric substrate 6, a full PEC floor is printed and the reference antenna is fed by the same excitation.
Fig. 11 is an S-parameter simulation curve of the flat-panel end-fire antenna of the present embodiment. As can be seen, the antenna is well resonant at 4.2GHz and has a bandwidth of about 300 MHz.
Fig. 12 is a simulated radiation pattern of the flat-panel end-fire antenna of the present embodiment. It can be seen from the figure that the antenna exhibits good endfire characteristics at 4.2GHz, the front-to-back ratio of the endfire pattern is below-15 dB, and the cross-polarization component is very low.
Fig. 13 is a simulation curve of the frequency change of the backward single-station RCS in the case of the flat-panel end-fire antenna and the reference antenna under TE and TM polarized incident wave irradiation, respectively, according to the present embodiment. The comparison shows that the composite structure can indeed inhibit the back single station RCS of the flat plate end-fire antenna of the embodiment in the ultra-wide band. Figure 14 is the difference in the back single station RCS of the two antennas. As seen from the figure, the flat-panel end-fire antenna of the embodiment can realize low RCS design of the antenna in a frequency band of 0-11.5 GHz for incident waves with TE and TM polarization.
In summary, the planar endfire antenna of the present embodiment excites surface waves in the surface wave waveguide through the strip patch to propagate, so that radiation of the surface waves at the edge of the waveguide can be realized, and an endfire pattern can be generated, and the frequency selective surface characteristics of the surface wave waveguide and the electromagnetic absorption capability of the super-surface absorber are combined, so that a low RCS design in a frequency band of 0 to 11.5GHz is realized. The flat-plate end-fire antenna can effectively enhance the stealth performance and the communication function of the antenna in airborne, carrier-borne and vehicle-mounted applications.
Claims (5)
1. An end-fire antenna based on a surface wave waveguide and super surface absorber composite structure is characterized by comprising a super surface absorber part, a radiation patch antenna part, a surface wave waveguide part and a feed part; the super surface absorber part comprises periodically arranged resistance loaded square ring units and an upper dielectric substrate (1); each resistor-loaded square ring unit comprises a square ring patch (2) and four loading resistors (3); the radiating patch antenna part comprises a strip radiating patch (4) and three parasitic strip reflector patches (5); the strip-shaped radiation patch (4) and the parasitic strip-shaped reflector patch (5) are printed on the upper surface of the middle-layer dielectric substrate (6); the surface wave waveguide part comprises a bottom layer medium substrate (8) and an I-shaped periodic unit; each I-shaped unit in the I-shaped periodic units comprises an upper layer square patch (7), a lower layer square patch (9) and a cylindrical metal probe (11) penetrating through a bottom layer dielectric substrate (8); the power feeding part comprises a power feeding metal probe (10), an SMA joint (12) and a short circuit metal probe (13);
the square-ring patch (2) and the loading resistor (3) are both positioned on the upper surface of the upper-layer dielectric substrate (1); the four loading resistors (3) are loaded on four edges of the square-ring patch (2) respectively; the strip-shaped radiation patch (4) and the parasitic strip-shaped reflector patch (5) are both positioned on the upper surface of the middle layer dielectric substrate (6); the upper square patch (7) of the I-shaped unit is positioned on the lower surface of the middle dielectric substrate (6); the lower surface of the middle layer dielectric substrate (6) is superposed with the upper surface of the bottom layer dielectric substrate (8); the lower layer square patch (9) of the I-shaped unit is positioned on the lower surface of the bottom layer dielectric substrate (8); an air gap exists between the upper dielectric substrate (1) and the middle dielectric substrate (6); the I-shaped cylindrical metal probe (11) penetrates through the bottom layer dielectric substrate (8) and is connected with the upper layer square patch (7) and the lower layer square patch (9) of the I-shaped unit; the SMA joint (12) is positioned on the lower surface of the bottom layer medium substrate (8); the feed metal probe (10) penetrates through the middle-layer dielectric substrate (6) and the bottom-layer dielectric substrate (8) and is connected with the strip-shaped metal patch (4) and the SMA connector (12); and the short circuit metal probe (13) penetrates through the middle-layer dielectric substrate (6) and the bottom-layer dielectric substrate (8) and is connected with the strip-shaped metal patch (4) and the lower-layer square patch (9) of the I-shaped unit.
2. The endfire antenna based on a composite structure of surface wave waveguide and super surface absorber of claim 1, characterized by feeding through a feeding metal probe (10), a short circuit metal probe (13) and an SMA joint (12).
3. The endfire antenna based on a composite structure of a surface wave waveguide and a metasurface absorber of claim 1 wherein said square ring elements are in a 5 x 3 periodic arrangement.
4. The endfire antenna based on a composite structure of a surface wave waveguide and a super surface absorber of claim 1, wherein said i-shaped periodic elements are in a 9 x 17 periodic arrangement.
5. The endfire antenna based on a surface wave waveguide and super surface absorber composite structure of claim 1, characterized in that the air gap between the upper dielectric substrate (1) and the intermediate dielectric substrate (6) is 8 mm.
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| CN109326878B (en) * | 2018-10-11 | 2019-10-08 | 西南交通大学 | A kind of broadband end-on-fire antenna based on surface wave guide and high impedance surface |
| CN112086756B (en) * | 2020-09-04 | 2022-07-05 | 重庆大学 | Integrated electric/magnetic alternative wave absorbing device and antenna array multi-state mutual coupling suppression method |
| CN112164874B (en) * | 2020-09-23 | 2022-09-20 | 中国人民解放军空军工程大学 | Low RCS broadband printed slot antenna based on digital electromagnetic super surface |
| CN113394569B (en) * | 2021-06-30 | 2022-10-18 | 电子科技大学长三角研究院(湖州) | Low-profile dual-band wave-absorbing surface applied to vehicle-mounted radar test environment and manufacturing method thereof |
| CN113922101B (en) * | 2021-11-12 | 2022-11-29 | 西安电子科技大学 | Wide-angle RCS (radar cross section) shrinkage reduction super surface based on radar wave absorption and scattering cancellation technology |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090051957A (en) * | 2007-11-20 | 2009-05-25 | 아주대학교산학협력단 | Yagi-uda antenna and design method of the same in the thz region |
| CN103078185A (en) * | 2013-01-25 | 2013-05-01 | 中国科学院光电技术研究所 | High-gain low-radar cross section panel antenna based on artificial electromagnetic structural material |
| CN104681949A (en) * | 2013-11-27 | 2015-06-03 | 哈尔滨飞羽科技有限公司 | Dual-notch UWB (ultra wide band) antenna based on Mushroom-EBG (electromagnetic band gap) structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160189915A1 (en) * | 2014-12-30 | 2016-06-30 | Electronics And Telecelectroommunications Research Institute | Antenna structure |
-
2017
- 2017-08-29 CN CN201710755584.7A patent/CN107611575B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090051957A (en) * | 2007-11-20 | 2009-05-25 | 아주대학교산학협력단 | Yagi-uda antenna and design method of the same in the thz region |
| CN103078185A (en) * | 2013-01-25 | 2013-05-01 | 中国科学院光电技术研究所 | High-gain low-radar cross section panel antenna based on artificial electromagnetic structural material |
| CN104681949A (en) * | 2013-11-27 | 2015-06-03 | 哈尔滨飞羽科技有限公司 | Dual-notch UWB (ultra wide band) antenna based on Mushroom-EBG (electromagnetic band gap) structure |
Non-Patent Citations (2)
| Title |
|---|
| Compact Surface-Wave Assisted Beam-Steerable Antenna Based on HIS;Mei Li等;《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》;20140430;全文 * |
| Horizontal Dipole Located Close to Ground Plane With Bidirectional Endfire Radiation;Mei Li 等;《IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS》;20140617;全文 * |
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