CN103414029A - Rectangular frame fractal antenna with both near-zero refractive index effect and left-handed effect - Google Patents
Rectangular frame fractal antenna with both near-zero refractive index effect and left-handed effect Download PDFInfo
- Publication number
- CN103414029A CN103414029A CN2013103687158A CN201310368715A CN103414029A CN 103414029 A CN103414029 A CN 103414029A CN 2013103687158 A CN2013103687158 A CN 2013103687158A CN 201310368715 A CN201310368715 A CN 201310368715A CN 103414029 A CN103414029 A CN 103414029A
- Authority
- CN
- China
- Prior art keywords
- medium substrate
- layer
- rectangle frame
- fractal
- rectangular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Aerials With Secondary Devices (AREA)
Abstract
The invention relates to a rectangular frame fractal antenna based on a rectangular snap ring left-handed material. The patch antenna comprises three layers of dielectric substrates, a metal earth plate, rectangular frame fractal metal radiation pieces, a micro-strip feeder line and rectangular metal resonance rings. The dielectric substrates which are of a compound structure comprise three layers, wherein the relative dielectric constant of the first layer of the dielectric substrates is 10, the relative dielectric constant of the third layer of the dielectric substrates is 10, and the relative dielectric constant of the second layer of the dielectric substrates is 2.2. A Gaussian discrete source serves as an excitation source. Feed is carried out on the patch antenna through the micro-strip feeder line. The patch antenna which is formed by adding the rectangular snap ring left-handed material to a rectangular frame fractal structure in a combination mode has the left-handed effect and the refractive index near-zero effect on different frequencies, remarkably improves the degree of localization of electromagnetic energy, has the convergence effect on beams, remarkably improves the antenna gain, is low in return loss, well improves performance, and can be widely applied to the field of mobile communication, the field of satellite communication, the field of aerospace and the like.
Description
Technical field
The invention belongs to communication technical field, be specifically related to a kind of rectangle frame fractal antenna based on rectangular aperture ring left-handed materials.
Background technology
Recently, as another branch of the super material of artificial electromagnetic, attract wide attention for the research of the zero super material of refractive index, a lot of team have confirmed the existence of zero refractive material and nearly zero refractive material by experiment.The people such as ENOCH for the first time experiment confirm while embedding radiation source in zero refractive index substrate, the energy of radiation will be limited in the narrow and small conical area of surrounding medium, namely by utilizing the characteristic of zero refraction materials, the directivity of energy emission has obtained very large improvement.
Fractal concept is in " fractals of occurring in nature " book, to be proposed first in nineteen eighty-three by a French mathematician that is called Mandelbrot.Fractals are exactly that research is unlimited complicated and have self similarity figure under certain sense and the geometry of structure, and what self similarity was exactly local form to configuration is similar.So-called fractal antenna, refer to the antenna that has fractal geometry on geometric attribute.It is by the new antenna by the Antenna Design reason is fallen and fractal geometry combines and designs.Fractals from filling characteristic, make antenna element can be relatively easy to realize miniaturization, on the other hand, due to the self-similarity nature that fractals have, antenna can obtain the characteristic of multiband.
Left-handed materials (LHM) is a kind of artificial electromagnetic medium of Novel cycle structure, its dielectric constant and magnetic permeability are simultaneously for negative, therefore, when electromagnetic wave is propagated in this two negative dielectric materials, electric vector, magnetic vector and wave vector three that ripple is propagated meet left hand rule, so be called as left-handed materials (or claiming negative refractive index material).It has caused that as a kind of novel artificial electromagnetic material people study interest greatly.As far back as nineteen sixty-eight, V.G.Veselageo has just studied the unusual electromagnet phenomenon in LHM theoretically; 2000, the people such as Smith found can obtain simultaneously the dielectric constant of bearing and negative magnetic permeability in microwave band with the complex media of special micro-structural periodic arrangement first, thereby from having verified that experimentally this material can make by manual method.Its significant application value of existing in light and electromagnetic wave field of the unusual electromagnetism special envoy of LHM.
The present invention is by the research to a kind of system of rectangle frame fractal antenna based on rectangular aperture ring left-handed materials, obtain corresponding performance parameter, use Nicolson-Ross-Weir (NRW) method to calculate this equivalent refractive index based on rectangle frame left-handed materials fractal antenna.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of left-handed materials rectangle frame fractal antenna that has simultaneously nearly zero index of refraction effects and left-handedness effect, namely in a certain frequency range, has left-handedness effect, strengthened the electromagnetic wave strength of resonance, improved the localization degree of electromagnetic energy, thereby reduce the return loss of antenna, increased gain; In another frequency range, have the nearly null effect of refractive index simultaneously, further improve the directive gain of antenna.
For solving the problems of the technologies described above, a kind of rectangle frame fractal antenna based on rectangular aperture ring left-handed materials of the present invention comprises ground floor medium substrate 1, second layer medium substrate 2, the 3rd layer of medium substrate 3, metal ground plate 4, microstrip feed line 5, the fractal metal radiation paster 6 of rectangle frame, rectangular metal resonant ring 7.Ground floor medium substrate 1, second layer medium substrate 2, the 3rd layer of medium substrate 3, metal ground plate 4 superpose successively, rectangle frame left-handed materials fractal antenna is comprised of the fractal metal radiation paster 6 of rectangle frame and microstrip feed line 5, microstrip feed line 5 is connected with driving source by plain conductor, for the rectangle frame fractal antenna feed to based on rectangular aperture ring left-handed materials.The circuit board lithographic technique is all adopted in the front of ground floor medium substrate 1, second layer medium substrate 2 and the 3rd layer of medium substrate 3.The front of ground floor medium substrate 1 adopts the circuit board lithographic technique to etch the rectangular metal resonant ring 7 of the fractal paster antenna of rectangle frame and periodic arrangement; The front of second layer medium substrate 2 and the 3rd layer of medium substrate 3 all adopts the circuit board lithographic technique to etch the reverse side metal clad ground plate 4 of 7, the three layers of medium substrate 3 of rectangular metal resonant ring of periodic arrangement, and it is connected with driving source by plain conductor.
Totally 36 of the rectangular metal resonant rings 7 of described the 3rd layer of medium substrate 3 positive periodic arrangement, even structure with 6 * 6 is arranged, described second layer medium substrate 2 is compared with the 3rd layer of medium substrate 3, four rectangular metal resonant rings, 7 outer other in its front deferrization Shaozheng are arranged identical with the 3rd layer of medium substrate 3, 32 the rectangular metal resonant rings 7 of having arranged altogether, arranging of the rectangular metal resonant ring 7 in described ground floor medium substrate 1 front is identical with arranging of the rectangular metal resonant ring 7 in second layer medium substrate 2 fronts, center adopts the circuit board lithographic technique to etch the fractal paster antenna of rectangle frame.
Its composition structure of described rectangle frame fractal antenna based on rectangular aperture ring left-handed materials can be selected following size: be of a size of 80mm * 80mm * 7mm after ground floor medium substrate 1, second layer medium substrate 2, the 3rd layer of medium substrate 3 stack; Ground floor medium substrate 1, second layer medium substrate 2 and the 3rd layer of medium substrate 3 measure-alike, the long and wide 80mm * 80mm that is; The relative dielectric constant of ground floor medium substrate 1 and the 3rd layer of medium substrate 3 is 10, and thickness is D
1=2mm, the relative dielectric constant of second layer medium substrate 2 is 2.2, thickness D
2=3mm; Ground floor medium substrate 1 front is fixed with width W
7The fractal metal radiation sheet 6 of the rectangle frame of=27mm, wherein the fractal metal radiation paster 6 of rectangle frame is W by 25 length and width
8The rectangle frame of=3mm forms; Described rectangular metal resonant ring 7 consists of inside and outside two-layer rectangular aperture ring, outer rectangular aperture ring length and the wide W that is
2=9mm, internal layer rectangular aperture ring length and the wide W that is
3=7mm, the width W of rectangular metal resonant ring 7
9=0.5mm, the A/F of ectonexine rectangle is W
5=1mm, adjacent rectangular metal resonant ring 7 is between left and right every S
1=4mm, between the upper and lower every being also S
1=4mm.Rectangular metal resonant ring 7 is apart from the spacing W at medium substrate edge
4=3mm.The long L of microstrip feed line 5
2=38.5mm, wide W
6=1mm.The 3rd layer of medium substrate 3 reverse side post 80mm * 80mm metal ground plate 4, driving source is connected with microstrip feed line 5 by plain conductor one end, one end is connected with metal ground plate 4, and driving source adopts the Gaussian discrete source, gives fractal metal radiation sheet 6 feeds of rectangle frame by microstrip feed line 5.
In order to verify validity of the present invention, utilize the XFDTD of simulation software to test the above-mentioned structure of rectangle frame fractal antenna based on rectangular aperture ring left-handed materials, this software is the simulation software of the all-wave 3 D electromagnetic based on electromagnetism numerical computation method FDTD (Finite-Difference Time-Domain Method) of U.S. REMCOM company exploitation, and this software emulation result reliability is high.By the emulation testing of this software, can obtain performance parameter value corresponding to antenna performance, as return loss (s11, also referred to as reflection coefficient), transmission coefficient (s21), voltage standing wave ratio (VSWR) and gain (Gain) etc.By analyzing these numerical value, can compare the quality of antenna performance.
The present invention is by ordinary rectangular frame fractal antenna, having added rectangular aperture ring left-handed materials textural association to form a kind of rectangle frame fractal antenna based on rectangular aperture ring left-handed materials, its characteristic shows as antenna and has left-handedness effect and the nearly null effect of refractive index, the effect of this antenna two frequencies compared, find that left-handedness effect has less return loss, and nearly zero index of refraction effects has higher directive gain; And will have the rectangle frame fractal antenna of rectangle resonant ring and common rectangle frame fractal antenna compares, find that it has less return loss and the gain of Geng Gao than the latter.From theoretical angle analysis its former because: on the one hand, the electromagnetic wave resonances that produce at f=15.9098GHz frequency place, make whole relative dielectric constant and the magnetic permeability of this structure be negative value, form the amplification of electromagnetic " tunnel " effect and evanescent wave, thus, greatly strengthened the electromagnetic wave strength of resonance.On the other hand, at the f=23.2309GHz place, nearly zero index of refraction effects produces and converges effect electromagnetic beam, causes antenna gain obviously to increase, and shows as lower return loss, has improved preferably the performance of antenna.
The accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Fig. 1 is a kind of Facad structure of rectangle frame fractal antenna based on rectangular aperture ring left-handed materials of the present invention schematic diagram, wherein: 1-ground floor medium substrate; 2-second layer medium substrate; The 3rd layer of medium substrate of 3-; The 4-metal ground plate; The 5-microstrip feed line; The fractal metal radiation paster of 6-rectangle frame; 7-rectangular metal resonant ring.
Fig. 2 is a kind of second layer of rectangle frame fractal antenna based on rectangular aperture ring left-handed materials of the present invention medium substrate structural representation;
Fig. 3 is the 3rd layer of medium substrate structural representation of a kind of rectangle frame fractal antenna based on rectangular aperture ring left-handed materials of the present invention;
Fig. 4 is the rectangular metal resonant ring structural representation of a kind of rectangle frame fractal antenna based on rectangular aperture ring left-handed materials of the present invention;
Fig. 5 is a kind of each layer of rectangle frame fractal antenna based on rectangular aperture ring left-handed materials of the present invention textural association schematic diagram;
Fig. 6 is the integrally-built relative dielectric constant of a kind of rectangle frame fractal antenna based on rectangular aperture ring left-handed materials of the present invention, magnetic permeability and refractive index n, wherein (a) is embedded with the refractive index n of the rectangle frame fractal antenna of resonant ring at the f=23.2309Ghz place, magnetic permeability μ
r, DIELECTRIC CONSTANT ε
r(b) be embedded with the refractive index n of the rectangle frame fractal antenna of resonant ring at the f=15.9098Ghz place, magnetic permeability μ
r, DIELECTRIC CONSTANT ε
r
Fig. 7 is a kind of return loss of rectangle frame fractal antenna based on rectangular aperture ring left-handed materials of the present invention s11 schematic diagram, wherein the s11 of (a) rectangle frame fractal antenna of being embedded with resonant ring when frequency f=23.2309GHz; (b) s11 of the rectangle frame fractal antenna that is embedded with resonant ring when frequency f=15.9098GHz;
Fig. 8 is a kind of voltage standing wave ratio of rectangle frame fractal antenna based on rectangular aperture ring left-handed materials of the present invention VSWR schematic diagram, wherein the VSWR of (a) rectangle frame fractal antenna of being embedded with resonant ring when frequency f=23.2309GHz; (b) VSWR of the rectangle frame fractal antenna that is embedded with resonant ring when frequency f=15.9098GHz;
Fig. 9 is a kind of rectangle frame fractal antenna based on rectangular aperture ring left-handed materials of the present invention gain schematic diagram, wherein the gain polarization diagram of (a) rectangle frame fractal antenna of being embedded with resonant ring when frequency f=23.2309GHz; (b) the gain polarization diagram of the rectangle frame fractal antenna that is embedded with resonant ring when frequency f=15.9098GHz.
Specific embodiments
Adopt the circuit board lithographic technique, this triangle frame left-handed materials patch-antenna structure based on nearly zero refractive index as shown in Figure 1, etching rectangle frame fractal antenna 6 and rectangular metal resonant ring 7 on ground floor medium substrate 1.On second layer medium substrate 2, periodically on 7, the three layers of medium substrate 3 of 32 rectangular metal resonant rings of etching, periodically arranging 36 rectangular metal resonant rings 7.Microstrip feed line 5 is connecting the fractal metal radiation sheet 6 of rectangle frame, as electric wave signal feed-in source.
The present invention is a kind of rectangle frame fractal antenna based on rectangular aperture ring left-handed materials, and as shown in Figure 1, the fractal antenna of this rectangle frame left-handed materials measure-alike medium substrate that haves three layers, be of a size of 80mm * 80mm * 7mm after stack.The relative dielectric constant of ground floor medium substrate 1 and the 3rd layer of medium substrate 3 is 10, thickness D
1=2mm, the relative dielectric constant of second layer medium substrate 2 are 2.2, thickness D
2=2mm.
After ground floor medium substrate 1, second layer medium substrate 2, the 3rd layer of medium substrate 3 stack, be of a size of 80mm * 80mm * 7mm; Ground floor medium substrate 1, second layer medium substrate 2 and the 3rd layer of medium substrate 3 measure-alike, the long and wide 80mm * 80mm that is; The relative dielectric constant of ground floor medium substrate 1 and the 3rd layer of medium substrate 3 is 10, and thickness is D
1=2mm, the relative dielectric constant of second layer medium substrate 2 is 2.2, thickness D
2=3mm; Ground floor medium substrate 1 front is fixed with width W
7The fractal metal radiation sheet 6 of the rectangle frame of=27mm, wherein the fractal metal radiation paster 6 of rectangle frame is by 25 long and wide W that are
8The rectangle frame of=3mm forms; On ground floor medium substrate 1, embed 32 rectangular metal resonant rings 7, rectangular metal resonant ring 7 consists of inside and outside two-layer rectangular aperture ring, outer rectangular aperture ring length and the wide W that is
2=9mm, internal layer rectangular aperture ring length and the wide W that is
3=7mm, the width W of rectangular metal resonant ring 7
9=0.5mm, the A/F of ectonexine rectangle is W
5=1mm, adjacent rectangular metal resonant ring 7 is between left and right every S
1=4mm, between the upper and lower every being also S
1=4mm.The rectangular metal resonant ring 7 spacing W apart from the medium substrate edge
4=3mm.The long L of microstrip feed line 5
2=38.5mm, wide W
6=1mm.On second layer medium substrate 2, periodically arranging 32 rectangular metal thanks to the ring that shakes and is periodically arranging 36 rectangular metal resonant rings 7 on 7, the three layers of medium substrate 3.The 3rd layer of medium substrate 3 reverse side post 80mm * 80mm metal ground plate 4, driving source is connected with microstrip feed line 5 by plain conductor one end, one end is connected with metal ground plate 4, and driving source adopts the Gaussian discrete source, gives fractal metal radiation sheet 6 feeds of rectangle frame by microstrip feed line 5.
For verifying whether designed structure has nearly zero index of refraction effects and left-handedness effect, with XFDTD Electromagnetic Simulation software, this rectangle frame fractal antenna based on rectangular aperture ring left-handed materials is carried out to emulation experiment, obtained the scattering parameter of this structural entity, be reflection coefficient (s11) and transmission coefficient (s21), by NRW transmit/reflection algorithm extracted effective dielectric constant and the effective permeability electromagnetic parameter of this composite construction integral body, Fig. 4 has provided the effective permeability μ of this composite construction that the parameter that obtained by emulation extracts
r, effective dielectric constant ε
rAnd refractive index n.Near f=23.2309GHZ frequency place antenna resonance point, the refractive index of antenna medium slab integral is less than zero and close to zero, wherein effective permeability μ
r=-0.156, effective dielectric constant ε
r=-0.3107, its equivalent refractive index n=-0.2201, its value is close to zero.And near resonance point f=15.9098Ghz, effective permeability μ
r=-0.5009, effective dielectric constant ε
r=-2.406, its equivalent refractive index n=-1.098, its value is non-nearly zero situation.Be illustrated in figure 5 the return loss s11 performance plot of this rectangle frame fractal antenna based on rectangular aperture ring left-handed materials, at frequency f=23.2309GHZ place minimum echo loss s11=-31.6528dB, near resonance point f=15.9098Ghz, minimum echo loss s11=-37.8794dB, illustrate that left-handedness effect has less return loss.
Figure 6 shows that voltage standing wave ratio VSWR performance plot, is 1.05 in frequency f=23.2309GHZ place minimum voltage standing-wave ratio, and very close to ideal value 1, near resonance point f=15.9098Ghz, the minimum voltage standing-wave ratio is 1.026.
Figure 7 shows that gain characteristic figure, after adding rectangular metal resonant ring left-handed materials structure, this MULTILAYER COMPOSITE left-handed materials rectangle frame fractal antenna, be about 10.8dB in frequency f=23.2309GHZ place forward gain maximum, and the forward maximum gain is 6.3dB near resonance point f=15.9098Ghz.Illustrate that nearly zero index of refraction effects has higher directive gain.
By the research to this rectangle frame fractal antenna based on rectangular aperture ring left-handed materials, find that its characteristic shows as antenna and has left-handedness effect and the nearly null effect of refractive index, the effect of this antenna two frequencies compared, find that left-handedness effect has less return loss, and nearly zero index of refraction effects has higher directive gain; And will have the rectangle frame fractal antenna of rectangle resonant ring and common rectangle frame fractal antenna compares, find that it has less return loss and the gain of Geng Gao than the latter.From theoretical angle analysis its former because: on the one hand, after on the hosqt media of paster antenna, having added left-handed materials, will form electromagnetism (photon) forbidden band, suppress the surface wave of propagating along the substrate floor media, thereby increase the reflected energy of electromagnetic wave to free space; On the other hand, the electromagnetic wave resonances that produce at f=15.9098GHz frequency place, make whole relative dielectric constant and the magnetic permeability of this structure be negative value, form the amplification of electromagnetic " tunnel " effect and evanescent wave, thus, greatly strengthened the electromagnetic wave strength of resonance, f=23.2309GHz place in addition, nearly zero index of refraction effects produces and converges effect electromagnetic beam, causes antenna gain obviously to increase, and show as lower return loss, improved preferably the performance of antenna.
So far, complete the making of this fractal antenna based on the rectangle frame left-handed materials.
Claims (3)
1. the rectangle frame fractal antenna based on rectangular aperture ring left-handed materials, is characterized in that: comprise ground floor medium substrate (1), second layer medium substrate (2), the 3rd layer of medium substrate (3), metal ground plate (4), microstrip feed line (5), the fractal metal radiation paster of rectangle frame (6), rectangular metal resonant ring (7); Ground floor medium substrate (1), second layer medium substrate (2), the 3rd layer of medium substrate (3), metal ground plate (4) superpose successively, the fractal paster antenna of rectangle frame is comprised of the fractal metal radiation paster of rectangle frame (6) and microstrip feed line (5), microstrip feed line (5) is connected with driving source by plain conductor, for the rectangle frame fractal antenna feed to based on rectangular aperture ring left-handed materials; The front that the front of ground floor medium substrate (1) adopts the circuit board lithographic technique to etch rectangular metal resonant ring (7), second layer medium substrate (2) and the 3rd layer of medium substrate (3) of the fractal paster antenna of rectangle frame and periodic arrangement all adopts the circuit board lithographic technique to etch the rectangular metal resonant ring (7) of periodic arrangement, the reverse side metal clad ground plate (4) of the 3rd layer of medium substrate (3), it is connected with driving source by plain conductor.
2. a kind of rectangle frame fractal antenna based on rectangular aperture ring left-handed materials according to claim 1, it is characterized in that: totally 36 of the rectangular metal resonant rings (7) of the positive periodic arrangement of described the 3rd layer of medium substrate (3), even structure with 6 * 6 is arranged, described second layer medium substrate (2) is compared with the 3rd layer of medium substrate (3), outer other of four rectangular metal resonant rings (7) in its front deferrization Shaozheng are arranged identical with the 3rd layer of medium substrate (3), 32 the rectangular metal resonant rings (7) of having arranged altogether, arranging of the rectangular metal resonant ring (7) that described ground floor medium substrate (1) is positive is identical with arranging of the positive rectangular metal resonant ring (7) of second layer medium substrate (2), center adopts the circuit board lithographic technique to etch the fractal paster antenna of rectangle frame.
3. a kind of rectangle frame fractal antenna based on rectangular aperture ring left-handed materials according to claim 1 and 2, is characterized in that: be of a size of 80mm * 80mm * 7mm after ground floor medium substrate (1), second layer medium substrate (2), the 3rd layer of medium substrate (3) stack; Ground floor medium substrate (1), second layer medium substrate (2) and the 3rd layer of medium substrate (3) measure-alike, the long and wide 80mm that is; The relative dielectric constant of ground floor medium substrate (1) and the 3rd layer of medium substrate (3) is 10, and thickness is D
1=2mm, the relative dielectric constant of second layer medium substrate (2) is 2.2, thickness D
2=3mm; Ground floor medium substrate (1) front is fixed with width W
7The fractal metal radiation sheet of the rectangle frame of=27mm (6), wherein the fractal metal radiation paster of rectangle frame (6) is by 25 long and wide W that are
8The rectangle frame of=3mm forms; Described rectangular metal resonant ring (7) consists of inside and outside two-layer rectangular aperture ring, outer rectangular aperture ring length and the wide W that is
2=9mm, internal layer rectangular aperture ring length and the wide W that is
3=7mm, the width W of rectangular metal resonant ring (7)
9=0.5mm, the A/F of ectonexine rectangle is W
5=1mm, adjacent rectangular metal resonant ring (7) is between left and right every S
1=4mm, between the upper and lower every being also S
1=4mm, rectangular metal resonant ring (7) is apart from the spacing W at medium substrate edge
4=3mm, the long L of microstrip feed line (5)
2=38.5mm, wide W
6=1mm, the 3rd layer of medium substrate (3) reverse side posts 80mm * 80mm metal ground plate (4), driving source is connected with microstrip feed line (5) by plain conductor one end, one end is connected with metal ground plate (4), driving source adopts the Gaussian discrete source, gives the fractal metal radiation sheet of rectangle frame (6) feed by microstrip feed line (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103687158A CN103414029A (en) | 2013-08-22 | 2013-08-22 | Rectangular frame fractal antenna with both near-zero refractive index effect and left-handed effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103687158A CN103414029A (en) | 2013-08-22 | 2013-08-22 | Rectangular frame fractal antenna with both near-zero refractive index effect and left-handed effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103414029A true CN103414029A (en) | 2013-11-27 |
Family
ID=49607023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103687158A Pending CN103414029A (en) | 2013-08-22 | 2013-08-22 | Rectangular frame fractal antenna with both near-zero refractive index effect and left-handed effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103414029A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633431A (en) * | 2013-12-06 | 2014-03-12 | 西安电子科技大学 | Low-profile adjustable tri-band antenna |
| CN104201480A (en) * | 2014-07-16 | 2014-12-10 | 电子科技大学 | Novel LTCC laminate circular polarization microstrip antenna |
| CN104218325A (en) * | 2014-09-15 | 2014-12-17 | 西安电子科技大学 | Artificial electromagnetic material with effective dielectric constant and permeability close to zero |
| CN105811077A (en) * | 2014-10-23 | 2016-07-27 | 现代自动车株式会社 | Antenna, circular polarized patch antenna, and vehicle having the same |
| CN107634346A (en) * | 2017-08-07 | 2018-01-26 | 西安电子科技大学 | The super surface interlayers of ENZ for the transmission of TE and TM polarized waves multi-angle |
| CN107732450A (en) * | 2017-12-01 | 2018-02-23 | 厦门大学嘉庚学院 | Multilayer for mobile digital TV gradually variant Fractal gap graphene antenna |
| CN109586023A (en) * | 2019-01-07 | 2019-04-05 | 云南大学 | Rectangular microstrip antenna based on Metamaterial dielectric substrate |
| CN111106425A (en) * | 2018-10-29 | 2020-05-05 | 奥特斯奥地利科技与系统技术有限公司 | Electronic device and method for transmitting or receiving electromagnetic radiation |
| CN111758186A (en) * | 2018-02-23 | 2020-10-09 | 高通股份有限公司 | Multi-layer antenna |
| CN113300115A (en) * | 2021-05-18 | 2021-08-24 | 北京邮电大学 | Electromagnetic metamaterial lens unit and metamaterial lens antenna |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090160718A1 (en) * | 2007-12-21 | 2009-06-25 | Ta-Jen Yen | Plane focus antenna |
| CN101976760A (en) * | 2010-09-07 | 2011-02-16 | 江苏大学 | Resonance loop left-handed medium patch antenna |
| US20110095955A1 (en) * | 1995-08-09 | 2011-04-28 | Fractal Antenna Systems, Inc. | Fractal antennas and fractal resonators |
| CN103236581A (en) * | 2013-04-09 | 2013-08-07 | 江苏大学 | Left-handed material latticed patch antenna with multi-layer composite heterostructure |
| CN203617428U (en) * | 2013-08-22 | 2014-05-28 | 江苏大学 | Rectangular frame fractal antenna with near-zero refractive index effect and left-hand effect simultaneously |
-
2013
- 2013-08-22 CN CN2013103687158A patent/CN103414029A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110095955A1 (en) * | 1995-08-09 | 2011-04-28 | Fractal Antenna Systems, Inc. | Fractal antennas and fractal resonators |
| US20090160718A1 (en) * | 2007-12-21 | 2009-06-25 | Ta-Jen Yen | Plane focus antenna |
| CN101976760A (en) * | 2010-09-07 | 2011-02-16 | 江苏大学 | Resonance loop left-handed medium patch antenna |
| CN103236581A (en) * | 2013-04-09 | 2013-08-07 | 江苏大学 | Left-handed material latticed patch antenna with multi-layer composite heterostructure |
| CN203617428U (en) * | 2013-08-22 | 2014-05-28 | 江苏大学 | Rectangular frame fractal antenna with near-zero refractive index effect and left-hand effect simultaneously |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633431A (en) * | 2013-12-06 | 2014-03-12 | 西安电子科技大学 | Low-profile adjustable tri-band antenna |
| CN104201480A (en) * | 2014-07-16 | 2014-12-10 | 电子科技大学 | Novel LTCC laminate circular polarization microstrip antenna |
| CN104218325A (en) * | 2014-09-15 | 2014-12-17 | 西安电子科技大学 | Artificial electromagnetic material with effective dielectric constant and permeability close to zero |
| CN104218325B (en) * | 2014-09-15 | 2016-08-17 | 西安电子科技大学 | A kind of effective dielectric constant and the artificial electromagnetic material of magnetic conductivity nearly zero |
| CN105811077A (en) * | 2014-10-23 | 2016-07-27 | 现代自动车株式会社 | Antenna, circular polarized patch antenna, and vehicle having the same |
| CN105811077B (en) * | 2014-10-23 | 2020-12-01 | 现代自动车株式会社 | Antenna, circularly polarized patch antenna and vehicle having such an antenna |
| CN107634346A (en) * | 2017-08-07 | 2018-01-26 | 西安电子科技大学 | The super surface interlayers of ENZ for the transmission of TE and TM polarized waves multi-angle |
| CN107634346B (en) * | 2017-08-07 | 2020-07-28 | 西安电子科技大学 | ENZ super-surface interlayer for multi-angle transmission of TE and TM polarized waves |
| CN107732450A (en) * | 2017-12-01 | 2018-02-23 | 厦门大学嘉庚学院 | Multilayer for mobile digital TV gradually variant Fractal gap graphene antenna |
| CN107732450B (en) * | 2017-12-01 | 2023-08-04 | 厦门大学嘉庚学院 | Multilayer gradual change fractal gap graphene antenna for mobile digital television |
| CN111758186B (en) * | 2018-02-23 | 2023-06-13 | 高通股份有限公司 | Multilayer antenna |
| CN111758186A (en) * | 2018-02-23 | 2020-10-09 | 高通股份有限公司 | Multi-layer antenna |
| CN111106425A (en) * | 2018-10-29 | 2020-05-05 | 奥特斯奥地利科技与系统技术有限公司 | Electronic device and method for transmitting or receiving electromagnetic radiation |
| US10897308B2 (en) | 2018-10-29 | 2021-01-19 | At&S Austria Technologie & Systemtechnik Aktiengesellschaft | Integration of all components being necessary for transmitting/receiving electromagnetic radiation in a component carrier |
| CN109586023A (en) * | 2019-01-07 | 2019-04-05 | 云南大学 | Rectangular microstrip antenna based on Metamaterial dielectric substrate |
| CN113300115A (en) * | 2021-05-18 | 2021-08-24 | 北京邮电大学 | Electromagnetic metamaterial lens unit and metamaterial lens antenna |
| CN113300115B (en) * | 2021-05-18 | 2022-05-31 | 北京邮电大学 | Electromagnetic metamaterial lens unit and metamaterial lens antenna |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103414029A (en) | Rectangular frame fractal antenna with both near-zero refractive index effect and left-handed effect | |
| US8451189B1 (en) | Ultra-wide band (UWB) artificial magnetic conductor (AMC) metamaterials for electrically thin antennas and arrays | |
| Althuwayb | Enhanced radiation gain and efficiency of a metamaterial‐inspired wideband microstrip antenna using substrate integrated waveguide technology for sub‐6 GHz wireless communication systems | |
| Jin et al. | Quarter-mode substrate integrated waveguide and its application to antennas design | |
| Liu et al. | Enhancement of the gain for microstrip antennas using negative permeability metamaterial on low temperature co-fired ceramic (LTCC) substrate | |
| CN103427159B (en) | A kind of MULTILAYER COMPOSITE compound lattice structure left-handed materials shaped as frame paster antenna | |
| CN106384883A (en) | Meta-material cross dipole circularly-polarized antenna | |
| CN203617428U (en) | Rectangular frame fractal antenna with near-zero refractive index effect and left-hand effect simultaneously | |
| Li et al. | Loading metamaterial perfect absorber method for in‐band radar cross section reduction based on the surface current distribution of array antennas | |
| Gupta et al. | Design of metamaterial-loaded rectangular patch antenna for satellite communication applications | |
| Kang et al. | Mushroom meta‐material based substrate integrated waveguide cavity backed slot antenna with broadband and reduced back radiation | |
| Chen et al. | A dual‐band high‐gain quasi‐Yagi antenna with split‐ring resonators for radio frequency energy harvesting | |
| Mobashsher et al. | Three‐dimensional folded antenna with ultra‐wideband performance, directional radiation and compact size | |
| Ranga et al. | Design and analysis of frequency-selective surfaces for ultrawideband applications | |
| Islam et al. | A negative index metamaterial antenna for UWB microwave imaging applications | |
| CN110336124B (en) | Bandwidth enhancement compact microstrip antenna based on dual-mode fusion and wireless communication system | |
| CN103236581B (en) | Left-handed material latticed patch antenna with multi-layer composite heterostructure | |
| Chaturvedi et al. | Bandwidth enhancement of a planar SIW cavity-backed slot antenna using slot and metallic-shorting via | |
| Kubacki et al. | A Broadband Left‐Handed Metamaterial Microstrip Antenna with Double‐Fractal Layers | |
| Niu et al. | Dual-band and dual-polarized programmable metasurface unit with independent channels | |
| Cheng et al. | Mutual Coupling Reduction Using Improved Dual‐Layer Mushroom and E‐Shaped Stub | |
| CN107039759A (en) | A kind of polarization reconstructable microstrip aerial array based on air-gap structure | |
| Aribi et al. | Circularly polarized beam-steering antenna array with enhanced characteristics using UCEBG structure | |
| CN103236580B (en) | Multilayer composite left-handed material rectangular-frame patch antenna based on photonic crystal structure | |
| CN203250855U (en) | Multi-layer composite left-handed material rectangular frame patch antenna based on photonic crystal structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131127 |