CN108711672A - A kind of polarization reconfigurable broad band cross dipole antenna - Google Patents
A kind of polarization reconfigurable broad band cross dipole antenna Download PDFInfo
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- CN108711672A CN108711672A CN201810399441.1A CN201810399441A CN108711672A CN 108711672 A CN108711672 A CN 108711672A CN 201810399441 A CN201810399441 A CN 201810399441A CN 108711672 A CN108711672 A CN 108711672A
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- patch
- medium substrate
- broad band
- dipole
- dipole antenna
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- 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
- H01Q15/24—Polarising devices; Polarisation filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/108—Combination of a dipole with a plane reflecting surface
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention proposes a kind of polarization reconfigurable broad band cross dipole antenna, and the restructural characteristic that polarizes, including radiating element, medium substrate, coaxial line, ring flange and reflecting plate are realized in the case where ensureing antenna broadband bandwidth；Radiating element includes the crossed dipoles being made of the metal patch for being printed on medium substrate upper and lower surface, the metal patch of upper and lower surface spatially 180 ° of rotational symmetry, each metal patch includes two dipole arms in 90 ° of arrangements connected by 1/4 wavelength annulus phase-shifter, the center of annulus phase-shifter is provided with fed patch, fed patch is connected with two dipole arms respectively by diode, the rectangular patch of the one of printing of dipole arm both sides corner cut and fluting；It is fixed by support column between medium substrate and reflecting plate, one end of coaxial line is connect by ring flange with reflecting plate, and the other end is connect with radiating element.
Description
Technical field
The invention belongs to antenna technical fields, are related to a kind of polarization reconfigurable broad band cross dipole antenna, can be used for
The wireless communication and all kinds of occasions for needing circular polarisation reconfigurable antenna that the ISM of 2.45GHz judges.
Background technology
The electromagnetic wave of arbitrary linear polarity format can resolve into two direction of rotation completely on the contrary, and amplitude comparable two
A circularly polarised wave.Therefore, polarization can also be received times that the antenna of arbitrary polarization is sent out by the antenna of circular polarisation
The electromagnetic wave of meaning polarization, and the circular polarisation electromagnetic wave that circular polarized antenna is sent out can be connect by arbitrary polarization antenna
It receives.Here it is scout etc. commonly used circular polarized antenna the reason of.And with the fast development of communication system, it is modern
Wireless system is more and more to tend to multi-functional, large capacity, broadband direction is developed.Utilize the restructural all channel antenna that polarizes
The function that can complete multiple conventional single-antennas reduces the cost and area occupied of antenna system, meets the low cost etc. of equipment
It is required that.
Traditional allows the method for aerial radiation circular polarisation mainly to have direct generation method, line-circular polarisation converter, line-entelechy
Change conversion cover, dual-linear polarization quadrature excitation method etc..Have using wide antenna in wherein direct generation method：Axial mode or normal direction
The microstrip antenna of the helical antenna of mould and the patch form that circular polarisation can be radiated.Although microstrip antenna is easy to generate circular polarisation
Wave, but be difficult to generate the very wide circularly polarised wave of working band.For the 3dB axial ratio bandwidths for keeping wider, need to keep good
Circular polarisation excitation purity, such as using the stepped construction of microband paste, be combined with L-type gap by L-type feed microstrip line
Deng.There are many different technologies for being applied to realize Broadband circularly polarized antenna, for example has increased the auxiliary spoke of two phase transposition
Penetrate microstrip line, hybrid resonant device, a cone structure with multiplanar conductive wall, the combination of a micro-strip and monopole, one
Lighter slot dipole antenna.But these dipoles have prodigious defect, such as a larger size, complicated structure and
Lower gain.Application publication number is CN103474765A, entitled " a kind of circular polarisation cross dipole antenna and its preparation side
The patent application of method ", discloses a kind of circular polarisation cross dipole antenna and preparation method thereof, antenna include metallic reflection plate,
Crossed dipoles radiating element in medium substrate upper and lower surface is arranged in medium substrate above metallic reflection plate, including
It is printed on the upper dipole of medium substrate upper and lower surface and lower dipole.The invention by widening the dipole arm of radiating element,
The expansion to antenna frequency band is realized, but has a defect that the invention is only capable of realizing that a kind of circular polarization characteristics, function are more single
One.
Invention content
It is an object of the invention to overcome the problems of the above-mentioned prior art, it is proposed that a kind of polarization reconfigurable broad band
Cross dipole antenna, it is intended in the case of ensureing antenna broadband bandwidth, realize the restructural characteristic of circular polarisation.
To achieve the above object, the technical solution that the present invention takes is：
A kind of polarization reconfigurable broad band cross dipole antenna, including radiating element 1, medium substrate 2, coaxial line 3, method
Blue disk 4 and reflecting plate 5, the radiating element 1, using metal patch 11 and the lower surface by being printed on 2 upper surface of medium substrate
Metal patch 11 form cross dipole minor structure, the metal patch 11 include by 1/4 wavelength annulus phase-shifter 112 connect
Two connect are in the dipole arm 111 of 90 ° of arrangements, for realizing 90 ° of phase differences between two dipole arms, and are printed on medium
The metal patch 11 of 2 lower surface of substrate, positioned at being printed on the metal patch 11 of 2 upper surface of medium substrate around annulus phase-shifter 112
Center rotates the projected position in 2 lower surface of medium substrate after 180 °；The medium substrate 2 is fixed on reflecting plate by support column
5 top；One end of the coaxial line 3 is connect by ring flange 4 with reflecting plate 5, and the other end is connect with radiating element 1.
The center of 11 annulus phase-shifter 112 of the metal patch, is provided with fed patch 12, and the fed patch 12 is logical
It crosses one or more diodes 13 to be respectively connected with two dipole arms 111, for realizing the restructural characteristic that polarizes；The printing
It is printed in the side of the 11 same dipole arm 111 of metal patch of the metal patch 11 and lower surface of 2 upper surface of medium substrate
First rectangular patch 14, the other side are printed with the second rectangular patch 15.
A kind of above-mentioned polarization reconfigurable broad band cross dipole antenna, first rectangular patch 14 are located at two idols
Extremely sub- arm 111 is formed by spatial position, and arbitrary a line is parallel with 111 long side of dipole arm that the side is closed on.
A kind of above-mentioned polarization reconfigurable broad band cross dipole antenna, first rectangular patch 14, in two idols
It is provided with corner cut on extremely sub- 111 open end adjacent of arm is diagonal.
A kind of above-mentioned polarization reconfigurable broad band cross dipole antenna, first rectangular patch 14, center
It is etched with the bottom edge U-shaped gap parallel with 14 long side of rectangular patch, and outward opening.
A kind of above-mentioned polarization reconfigurable broad band cross dipole antenna, second rectangular patch 15, with the first square
Shape patch 14 is about 11 annulus phase-shifter of metal patch, 90 ° of 112 center rotational symmetry.
A kind of above-mentioned polarization reconfigurable broad band cross dipole antenna, the medium substrate 2 are arranged using center
There is the square plank of feed via.
A kind of above-mentioned polarization reconfigurable broad band cross dipole antenna, the coaxial line 3 are connect with radiating element 1
One end, inner core is connected with upper surface fed patch 12, and outside is connected with lower surface fed patch 12.
A kind of above-mentioned polarization reconfigurable broad band cross dipole antenna, the radiating element 1, upper surface and reflecting plate 5
Distance is 0.25 times of wavelength, realizes the performance of enhancing forward radiation.
Compared with prior art, the present invention having the following advantages that：
1, the present invention is due in the annulus phase-shifter center of metal patch, being provided with fed patch, the fed patch
Be connected respectively with two dipole arms by one or more diodes, using DC voltage control diode conducting or cut
Only, it can be achieved that two kinds of circular polarization characteristics, simulation result show the present invention compared with the prior art, the restructural spy of polarization is realized
Property.
2, the present invention is due in the metal patch of medium substrate upper surface and the same dipole arm of the metal patch of lower surface
Both sides be printed with rectangular patch, and opened to rectangular patch corner cut and in its center U-shaped gap, coupled using rectangular patch
In the case of feed, the quadrature current and electric field that slot edge generates optimize the antenna caused by the addition of diode
Penalty ensure that the broadband of antenna.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the structural schematic diagram of radiating element of the present invention；
Fig. 3 is the structural schematic diagram of metal patch in Fig. 2；
Fig. 4 is the structural schematic diagram of the rectangular patch in Fig. 2；
Fig. 5 is the left-hand circular polarization 3dB axial ratio bandwidth figures of the present invention；
Fig. 6 is the left-hand circular polarization standing-wave ratio bandwidth figure of the present invention；
Fig. 7 is the right-handed circular polarization 3dB axial ratio bandwidth figures of the present invention；
Fig. 8 is the right-handed circular polarization standing-wave ratio bandwidth figure of the present invention；
Actual gain curve figure when Fig. 9 is the present invention left-handed in working frequency range and dextrorotation；
Figure 10 is the present invention left-handed change curve with radiation efficiency when dextrorotation with frequency in working frequency range.
Specific implementation mode
In the following with reference to the drawings and specific embodiments, the invention will be further described：
Referring to Fig.1, a kind of polarization reconfigurable broad band cross dipole antenna, including it is radiating element 1, medium substrate 2, same
Axis 3, ring flange 4 and reflecting plate 5, medium substrate 2 use center be provided with feed via dielectric constant for 4.4 just
Rectangular FR4 dielectric-slabs, its side length is L=55mm, thickness h=1.6mm.The present invention is used positioned at the same of 2 center of medium substrate
Axis 3 is fed, and one end is connect by ring flange 4 with reflecting plate 5, and the other end is connect with radiating element 1, medium substrate 2
The top of reflecting plate 5 is fixed on using four nylon columns；The upper surface of radiating element 1 and reflecting plate 5 apart from for 0.25 times of wavelength,
Realize the performance of enhancing forward radiation.
With reference to Fig. 2, the radiating element 1 is using metal patch 11 and the lower surface by being printed on 2 upper surface of medium substrate
The cross dipole minor structure that forms of metal patch 11, the metal patch 11 of the lower surface, which is located at, to be printed on medium substrate 2
The metal patch 11 on surface rotates the projected position after 180 ° in 2 lower surface of medium substrate, and circle around 112 center of annulus phase-shifter
112 center of ring phase-shifter is overlapped with 2 center of medium substrate；The metal patch 11 includes passing through 1/4 wavelength annulus phase-shifter 112
The dipole arm 111 that two of connection arrange in 90 °, for realizing 90 ° of phase differences between two dipole arms；The metal patch
The center of 11 annulus phase-shifter 112 of piece is provided with fed patch 12, upper surface fed patch 12 and 3 inner core phase of coaxial line
Even, lower surface fed patch 12 is connected with 3 outside of coaxial line.Wherein, apex drive part is no longer directly connected with fed patch 12
Dipole arm 111 is connect, but is attached thereto with 3 patch PIN diodes 13 per side, for realizing polarization reconfigurability energy, PIN
The model bat64-03w of diode 13, supports the working frequency range of 1MHz-6GHz, the encapsulation for the diode 13 which uses
For SOD323.When conducting, conducting resistance is 1.35 ohm, inductance 1.8nh；End when not powered or reverse power connection, cut-off electricity
Resistance is 3000 ohm, capacitance 0.17pf.It is printed on the metal patch of the metal patch 11 and lower surface of 2 upper surface of medium substrate
The side of 11 same dipole arms 111 is printed with the first rectangular patch 14, and the other side is printed with the second rectangular patch 15, and described
One rectangular patch 14 is formed by spatial position, the dipole that arbitrary a line is closed on the side positioned at two dipole arms 111
Sub- brachium side is parallel.Second rectangular patch 15, with the first rectangular patch 14 about 11 annulus phase-shifter 112 of metal patch
90 ° of center rotational symmetry.Wherein the long side of rectangular patch 14 is w5=with the distance between 111 long side of dipole arm is closed on
0.6mm.Gap herein can be equivalent in the equiva lent impedance that capacitance adds entire antenna, the impedance matching to antenna and entelechy
The phase for changing two quadrature components has an impact.
With reference to Fig. 3, the length of the dipole arm 111 is w4=18mm, width w3=4.5mm, dipole arm width w3's
Size changes the first working frequency that can make entire antenna and the second working frequency changes.The radius of annulus phase-shifter 112
For r1=5.7mm, ring width w2=1.5mm.
With reference to Fig. 4, which is provided with corner cut on two 111 open end adjacents of dipole arm are diagonal, cuts
The length of side size of the long c=0.5mm of the arm of angle, corner cut influence electric field on patch.The length w1=19.4mm of rectangular patch, width wp=
17.5mm.14 center of rectangular patch is etched with the bottom edge U-shaped gap parallel with 14 long side of rectangular patch, opening direction to
Outside, for away from the direction of dipole arm 111.The bottom edge in U-shaped gap is Ss=10.5mm, a length of Ls=7.5mm, and gap width is
Ws=2mm.The path of the size in U-shaped gap and position change 14 surface of rectangular patch conduction electric current, has encouraged new resonance
Frequency has accordingly broadened antenna frequency band.
The metal patch 11 of 2 upper surface of medium substrate and the metal patch 11 of lower surface of the present invention has been integrally formed one
Sequence rotational structure, 3 inner core of coaxial line are connect with the fed patch 12 of 2 upper surface of medium substrate, and fed patch 12 passes through two poles
Pipe 13 is connect with dipole arm 111, and by the electric current of 3 inner core of coaxial line output by forward-biased diodes, a part flows into even
An extremely sub arm, another part flow into another arm of dipole by 1/4 wavelength annulus phase-shifter 112 so that two-arm and its excitation
Two rectangular patches on electric current there is 90 ° of phase difference.The fed patch of coaxial line 3 outside and 2 lower surface of medium substrate
12 are connected, and the current distribution of lower surface metal patch 11 is identical as the current distribution of metal patch 11 of upper surface, due to coaxial
3 inner core of line differs 180 ° with foreign current, the current phases of four arms 111 of cross dipole minor structure differ successively 90 °,
180 °, 270 °, formation sequence rotating feed structure, to generate circular polarisation.
2*3 diode of the one of which being added between the fed patch 12 and dipole arm 111 13, utilizes direct current
The voltage-controlled conducting for making its diode 13 and cut-off working condition, when the diode 13 connected in a dipole arm 111 is in conducting
State, when the diode 13 connected in another dipole arm 111 is in cut-off state, electric current is clockwise along annulus phase-shifter 112
Flowing radiates right-handed circular polarization wave, when changing DC voltage forward direction with reverse bias, diode operation status exchange, and electric current
Along 112 counterclockwise flow of annulus phase-shifter, left-hand circular polarization wave is radiated, realizes polarization reconfigurability energy.Parallel connection is used herein
Mode places three diodes 13, places diodes much more as possible in a limited space the resistor coupled in parallel of introducing is allow to reduce and draw
The resistance value entered.Since resistance, capacitance and inductance that diode 13 introduces can have an impact two aspect performances of antenna, the
One is standing-wave ratio bandwidth, and the resistance that diode introduces can influence impedance matching so that the antenna of originally impedance matching generates mistake
Match；Second be circular polarisation axial ratio bandwidth, the capacitance and inductance that diode introduces can increase by 90 ° of phase differences of script additional
Difference so that in working band difference be not equal to 90 °, destroy circular polarisation performance.In order to improve this problem, using change
Dipole arm 111 is between rectangular patch 14 at a distance from gap and the size of 14 corner cut of rectangular patch and each ginseng in U-shaped gap
Number so that good radiance is obtained in working band.
Below in conjunction with emulation experiment, the technique effect of the present invention is described further：
1, simulated conditions and content：
1.1 using business simulation software HFSS-15.0 to axis ratio and being stayed when the left-handed and dextrorotation of antenna in above-described embodiment
Bobbi figure, as a result as shown in Fig. 5, Fig. 6, Fig. 7, Fig. 8.
1.2 gain curve using business simulation software HFSS-15.0 to antenna in above-described embodiment in working frequency range
Figure, the results are shown in Figure 9.
1.3 using business simulation software HFSS-15.0 to the radiation efficiency of antenna in above-described embodiment with the curve of frequency
Figure, the results are shown in Figure 10.
2, analysis of simulation result：
With reference to Fig. 5,3dB axis is 2.28GHz-3.12GHz, relative bandwidth 31.1% than frequency band when left-handed in embodiment.
Less than 2 it is standard with standing-wave ratio, standing-wave ratio frequency band is 2.08GHz-3.22GHz, opposite band when left-handed with reference to Fig. 6
Width is 43.0%.
With reference to Fig. 7,3dB axis than frequency band is 2.35GHz-3.13GHz, relative bandwidth 28.5% when dextrorotation in embodiment.
It is standard less than 2 with standing-wave ratio with reference to Fig. 8, standing-wave ratio frequency band is 2.07GHz-3.35GHz, opposite band when dextrorotation
Width is 47%.
In summary two working conditions, the present invention by the break-make of diode realize polarization it is restructural, to work frequency
Band takes intersection that can obtain the working band of restructural circular polarized antenna, and frequency band of the standing-wave ratio less than 2 is 2.1GHz-3.11GHz, relatively
Bandwidth is 42.1%.Circular polarisation 3dB axial ratio bandwidths are 2.35GHz-3.12GHz, relative bandwidth 28.2%.
With reference to Fig. 9, the gain of antenna with frequency change curve.When left-hand circular polarization, antenna always increases in 2.50GHz
Benefit can reach 6.4dB；When right-handed circular polarization, it is 6.38dB that antenna, which can reach maximum value in 2.45GHz,.It is ideal single even
Extremely sub gain is 2.14dB, it is seen that the reflecting plate of the antenna plays the role of promoting gain performance.
Referring to Fig.1 0, the radiation efficiency of antenna with frequency change curve.When left-hand circular polarization, antenna is in 2.15GHz
When radiation efficiency can reach maximum value 84.7%；When right-handed circular polarization, radiation efficiency of the antenna in 2.2GHz can reach
To maximum value 85.5%.This demonstrate that antenna matches well in working frequency range, it can be with very high efficiency radiation energy.
Above simulation result explanation, compared with prior art, inventive antenna by fed patch and dipole arm it
Between diode is added, and to rectangular patch corner cut and opening U-type groove, pole realized in the case where ensure that day line width axial ratio bandwidth
Change restructural characteristic, improves the deficiencies in the prior art.
Only it is one embodiment of the present of invention, does not constitute any limitation of the invention, it is clear that for the profession of this field
For personnel, after having understood the content of present invention and principle, all may without departing substantially from the principle of the invention, structure, into
The various modifications and variations of row in form and details, but these modifications and variations based on inventive concept are still the present invention's
Within scope of the claims.
Claims (8)
1. a kind of polarization reconfigurable broad band cross dipole antenna, including radiating element (1), medium substrate (2), coaxial line
(3), ring flange (4) and reflecting plate (5), the radiating element (1), using the metal by being printed on medium substrate (2) upper surface
The cross dipole minor structure of patch (11) and the metal patch (11) of lower surface composition, the metal patch (11) include passing through 1/
4 wavelength annulus phase-shifters (112) connection two in 90 ° arrangement dipole arms (111), for realizing two dipole arms it
Between 90 ° of phase differences, and the metal patch (11) of medium substrate (2) lower surface is printed on, positioned at being printed on medium substrate (2) upper table
The metal patch (11) in face rotates the projected position after 180 ° in medium substrate (2) lower surface around annulus phase-shifter (112) center；
The medium substrate (2) is fixed on the top of reflecting plate (5) by support column；One end of the coaxial line (3) passes through ring flange
(4) it is connect with reflecting plate (5), the other end is connect with radiating element (1)；
It is characterized in that：
The center of metal patch (11) the annulus phase-shifter (112), is provided with fed patch (12), the fed patch
(12) it is connected respectively with two dipole arms (111) by one or more diodes (13), for realizing the restructural spy that polarizes
Property；Metal patch (11) same dipole of the metal patch (11) for being printed on medium substrate (2) upper surface and lower surface
The side of arm (111) is printed with the first rectangular patch (14), and the other side is printed with the second rectangular patch (15).
2. a kind of polarization reconfigurable broad band cross dipole antenna according to claim 1, it is characterised in that：Described
One rectangular patch (14) is formed by spatial position positioned at two dipole arms (111), what arbitrary a line was closed on the side
Dipole arm long side is parallel.
3. a kind of polarization reconfigurable broad band cross dipole antenna according to claim 2, it is characterised in that：Described
One rectangular patch (14) is provided with corner cut on two dipole arm (111) open end adjacents are diagonal.
4. a kind of polarization reconfigurable broad band cross dipole antenna according to claim 3, it is characterised in that：Described
One rectangular patch (14), center are etched with the bottom edge U-shaped gap parallel with rectangular patch (14) long side, and be open to
Outside.
5. a kind of polarization reconfigurable broad band cross dipole antenna according to claim 4, it is characterised in that：Described
Two rectangular patches (15), with the first rectangular patch (14) about the rotation of 90 ° of metal patch (11) annulus phase-shifter (112) center
Symmetrically.
6. a kind of polarization reconfigurable broad band cross dipole antenna according to claim 1, it is characterised in that：It is given an account of
Matter substrate (2) is provided with the square plank of feed via using center.
7. a kind of polarization reconfigurable broad band cross dipole antenna according to claim 1, it is characterised in that：It is described same
Axis (3), the one end being connect with radiating element (1), inner core are connected with upper surface fed patch (12), external to be presented with lower surface
Electric patch (12) is connected.
8. a kind of polarization reconfigurable broad band cross dipole antenna according to claim 1, it is characterised in that：The spoke
Unit (1) is penetrated, upper surface and reflecting plate (5) distance are 0.25 times of wavelength, realize the performance of enhancing forward radiation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810399441.1A CN108711672A (en) | 2018-04-28 | 2018-04-28 | A kind of polarization reconfigurable broad band cross dipole antenna |
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| CN201810399441.1A CN108711672A (en) | 2018-04-28 | 2018-04-28 | A kind of polarization reconfigurable broad band cross dipole antenna |
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Cited By (12)
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| CN109638428A (en) * | 2019-01-08 | 2019-04-16 | 广州亚美信息科技有限公司 | A kind of communication antenna of new generation applied to 5G |
| CN109860998A (en) * | 2019-03-29 | 2019-06-07 | 南京信息工程大学 | A kind of restructural wearable microstrip antenna |
| CN109860997A (en) * | 2019-03-12 | 2019-06-07 | 华南理工大学 | A kind of light-operated restructural monopole antenna of polarization |
| CN110311216A (en) * | 2019-06-25 | 2019-10-08 | 杭州电子科技大学富阳电子信息研究院有限公司 | Broadband circular polarisation dipole paster antenna with water spiral |
| CN110518338A (en) * | 2019-08-20 | 2019-11-29 | 西安电子科技大学 | A kind of frequency and the restructural broad-band antenna that polarizes |
| CN110829013A (en) * | 2019-11-19 | 2020-02-21 | 榆林学院 | C-band planar MIMO antenna based on interdigital coupling structure |
| CN111682649A (en) * | 2020-06-22 | 2020-09-18 | 电子科技大学 | Electromagnetic energy collector based on super surface |
| CN113964494A (en) * | 2021-10-14 | 2022-01-21 | 西安邮电大学 | Broadband circularly polarized antenna with filtering characteristic |
| CN115693119A (en) * | 2022-10-28 | 2023-02-03 | 荣耀终端有限公司 | Terminal antenna and electronic equipment |
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| WO2024051434A1 (en) * | 2022-09-09 | 2024-03-14 | 上海移远通信技术股份有限公司 | Circularly polarized antenna, communication device, and circularly polarized antenna manufacturing method |
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| CN109638428A (en) * | 2019-01-08 | 2019-04-16 | 广州亚美信息科技有限公司 | A kind of communication antenna of new generation applied to 5G |
| CN109860997B (en) * | 2019-03-12 | 2023-11-03 | 华南理工大学 | Optically-controlled polarization reconfigurable monopole antenna |
| CN109860997A (en) * | 2019-03-12 | 2019-06-07 | 华南理工大学 | A kind of light-operated restructural monopole antenna of polarization |
| CN109860998A (en) * | 2019-03-29 | 2019-06-07 | 南京信息工程大学 | A kind of restructural wearable microstrip antenna |
| CN109860998B (en) * | 2019-03-29 | 2024-02-02 | 南京信息工程大学 | Reconfigurable wearable microstrip antenna |
| CN110311216A (en) * | 2019-06-25 | 2019-10-08 | 杭州电子科技大学富阳电子信息研究院有限公司 | Broadband circular polarisation dipole paster antenna with water spiral |
| CN110311216B (en) * | 2019-06-25 | 2024-04-12 | 杭州电子科技大学 | Broadband circularly polarized dipole patch antenna with water spiral |
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| CN113964494A (en) * | 2021-10-14 | 2022-01-21 | 西安邮电大学 | Broadband circularly polarized antenna with filtering characteristic |
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| CN115693119A (en) * | 2022-10-28 | 2023-02-03 | 荣耀终端有限公司 | Terminal antenna and electronic equipment |
| CN115693119B (en) * | 2022-10-28 | 2023-11-14 | 荣耀终端有限公司 | Terminal antenna and electronic equipment |
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