CN109509977A - The monopole antenna of the back-shaped left-handed material unit of load circle - Google Patents
The monopole antenna of the back-shaped left-handed material unit of load circle Download PDFInfo
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- CN109509977A CN109509977A CN201910000712.6A CN201910000712A CN109509977A CN 109509977 A CN109509977 A CN 109509977A CN 201910000712 A CN201910000712 A CN 201910000712A CN 109509977 A CN109509977 A CN 109509977A
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- handed material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—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
- 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
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0086—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials
-
- 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
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
-
- 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
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
- H01Q9/40—Element having extended radiating surface
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses the monopole antennas of the back-shaped left-handed material unit of load circle, are related to wireless communication field.The monopole antenna is planar structure, comprising: dielectric-slab (1), co-planar waveguide (2), semi-circular radiation patch (3) and arc-shaped micro-strip line (4)；One end of the feeder line (20) of co-planar waveguide (2) for feed is connect with the center of semi-circular radiation patch (3), and arc-shaped micro-strip line (4) is located at the surface of semi-circular radiation patch (3)；The array (5) that multiple circular ring shape left-handed material units are constituted is printed between semi-circular radiation patch (3) and arc-shaped micro-strip line (4).The monopole antenna that the present invention loads the back-shaped left-handed material unit of circle passes through the back-shaped left-handed material unit of load circle, so that common monopole antenna realizes more good impedance matching, the raising of gain is also obtained simultaneously, it is small with size, structure is simple, the advantages that easy processing, high-gain, low-loss.
Description
Technical field
The invention belongs to wireless communication fields, are related to the monopole antenna of the back-shaped left-handed material unit of load circle.
Background technique
Left-handed material is a kind of Meta Materials the most classical, is defined as in certain frequency ranges while having negative permittivity
And negative magnetoconductivity.It is made of the artificial cellular construction that periodic size is far smaller than operation wavelength, this kind of material can be presented naturally
Extraordinary physical property not available for material.
With the rapid development of information technology, wireless communication technique can be not whenever and wherever possible by the constraint of geographical environment because of it
It carries out information to transmit and exchange, is widely used in the every aspect of people's life and social development, while communication
Diversified great convenience people's lives and work.In the wireless communication system being seen everywhere, information is often logical
Radio magnetic wave is crossed to be transmitted, and antenna is as the important composition part in wireless communication system, it is fine or not intuitively to influence
To the efficiency and quality of wireless communication.And along with the growth at full speed of current all kinds of communication systems, multinomial property of the industry to antenna
The serious hope that can reach simultaneously with index is also further strong, and it is more novel that good performance parameter needs are developed in the design of antenna
Special structure, and the plate of more high-quality is needed to support Antenna Design, it is therefore apparent that the cost of antenna is virtually
Significantly improve.But the appearance of Meta Materials passes through design Meta Materials so that this problem has found feasible method
Load can make the cost for making antenna promote the multinomial performance parameter of antenna while be controlled, therefore, by Meta Materials and
Antenna is effectively combined, and with this, come the research that improves antenna performance parameters, there is far-reaching value and significances.
In recent years, Meta Materials are applied to Antenna Design by numerous scholars, achieve the progress of many substances.Meta Materials are made
For a kind of completely new artificial electromagnetic material, since it has negative refractive index, negative group velocity, reversed Doppler effect etc. a series of
Peculiar physical property is applied in traditional Antenna Design, can significantly improve the working performance of antenna, such as improves and increases
Coupling etc. between benefit, increase bandwidth, miniaturization, realization multiband and reduction antenna.It is worth noting that, being based on Meta Materials
New antenna can not only improve its some index, while multiple indexs can also be improved.
The present invention loads the monopole antenna of the back-shaped left-handed material unit of circle, by loading the back-shaped left-handed material unit of circle,
So that common monopole antenna realizes more good impedance matching, while also obtaining the raising of gain, there is size
It is small, the advantages that structure is simple, easy processing, high-gain, low-loss.
The content of present invention has no open report same as the present invention by literature search.
Summary of the invention
The object of the present invention is to provide the monopole antennas of the back-shaped left-handed material unit of load circle.It is back-shaped that the present invention loads circle
The monopole antenna of left-handed material unit, comprising: dielectric-slab (1), co-planar waveguide (2), semi-circular radiation patch (3) and arc are micro-
Band line (4) forms；One end of the feeder line (20) of co-planar waveguide (2) for feed and the centre bit of semi-circular radiation patch (3)
Connection is set, it is parasitic single to be located at the near field resonance that the arc-shaped micro-strip line (4) above semi-circular radiation patch (3) is semi-circular radiator
Member；The array of circular ring shape left-handed material unit composition is printed between semi-circular radiation patch (3) and arc-shaped micro-strip line (4)
(5)；Each unit of the left-handed material cell array (5) includes dielectric-slab (9) and the back-shaped patch of circle being printed on dielectric-slab (9)
Piece (10)；The back-shaped patch (10) of circle crosses the micro- of the center of circle by two external semicircles (6,6 '), two internal semicircles (7,7 ') and one
Band line (8) is constituted；Two external semicircles (6,6 ') are arranged above and below, and two internal semicircles (7,7 ') are compared to external semicircle around circle
The heart has rotated 90 °, is in left-right situs.
The monopole antenna of the back-shaped left-handed material unit of the load circle, the antenna can be parasitic single by adjusting arc
Member, just can realize good impedance matching with driving unit, and the size of near field resonance parasitic element is much larger than the ruler of driving unit
Very little, this just makes arc parasitic element be the major radiator of antenna.
The monopole antenna of the back-shaped left-handed material unit of the load circle, in semi-circular radiation patch (3) and arc micro-strip
The array (5) that the back-shaped left-handed material unit of the circle printed between line (4) is constituted can be by 1-3 back-shaped left-handed material units of circle
It constitutes, when only loading 1 back-shaped left-handed material unit of circle, which is located at semi-circular radiation patch (3) and arc
Horizontal and vertical middle position between shaped microstrip line (4)；When loading 2 back-shaped left-handed material units of circle, the left side of the left and right 2
Hand material cell vertical center and is symmetrically divided between semi-circular radiation patch (3) and arc-shaped micro-strip line (4) in middle line two sides
Cloth；When loading 3 back-shaped left-handed material units of circle, intermediate left-handed material unit is in 2 units relative to the left and right sides
The distance of half of inside annular radii is translated up in vertical direction, 3 left-handed material units form the array of an inverted V-shaped.
The monopole antenna of the back-shaped left-handed material unit of the load circle, using the FR4 dielectric-slab with a thickness of 1.2mm, ruler
Very little is 25mmX30mm；The size of left-handed material unit is 5mmX5mm.
The advantages that present invention has size small, and structure is simple, easy processing, high-gain, low-loss.
Detailed description of the invention
Fig. 1 monopole antenna structural schematic diagram
The back-shaped left-handed material cellular construction schematic diagram of Fig. 2 circle
Fig. 3 loads the monopole antenna structural schematic diagram of 1-3 left-handed material unit
The return loss comparison diagram of the monopole antenna of the back-shaped left-handed material unit of Fig. 4 load circle
The directional diagram comparison diagram of the monopole antenna of the back-shaped left-handed material unit of Fig. 5 load circle
The radiation efficiency comparison diagram of the monopole antenna of the back-shaped left-handed material unit of Fig. 6 load circle.
Specific embodiment
The explanation of specific embodiment is carried out to the present invention with reference to the accompanying drawing.
As shown in Figure 1, Figure 2 and Figure 3, the present invention loads the monopole antenna of the back-shaped left-handed material unit of circle, including medium
Plate (1), co-planar waveguide (2), semi-circular radiation patch (3) and arc-shaped micro-strip line (4) composition；Co-planar waveguide (2) for feed
One end of feeder line (20) connect with the center of semi-circular radiation patch (3), be located above semi-circular radiation patch (3)
Arc-shaped micro-strip line (4) is the near field resonance parasitic element of semi-circular radiator；In semi-circular radiation patch (3) and arc-shaped micro-strip line
(4) array (5) of circular ring shape left-handed material unit composition is printed between；Each unit of the left-handed material cell array (5)
Including dielectric-slab (9) and the back-shaped patch of circle (10) being printed on dielectric-slab (9)；The back-shaped patch (10) of circle is by two external semicircles
(6,6 '), two internal semicircles (7,7 ') and a microstrip line (8) for crossing the center of circle are constituted；Two external semicircles (6,6 ') are arranged up and down
Column, two internal semicircles (7,7 ') have rotated 90 ° around the center of circle compared to external semicircle, are in left-right situs.The load is justified back
The monopole antenna of shape left-handed material unit, the antenna just can be realized by adjusting arc parasitic element with driving unit
The size of good impedance matching, near field resonance parasitic element is much larger than the size of driving unit, this just makes arc parasitic single
Member is the major radiator of antenna.
The monopole antenna of the back-shaped left-handed material unit of the load circle, in semi-circular radiation patch (3) and arc micro-strip
The array (5) that the back-shaped left-handed material unit of the circle printed between line (4) is constituted can be by 1-3 back-shaped left-handed material units of circle
It constitutes, when only loading 1 back-shaped left-handed material unit of circle, which is located at semi-circular radiation patch (3) and arc
Horizontal and vertical middle position between shaped microstrip line (4)；When loading 2 back-shaped left-handed material units of circle, the left side of the left and right 2
Hand material cell vertical center and is symmetrically divided between semi-circular radiation patch (3) and arc-shaped micro-strip line (4) in middle line two sides
Cloth；When loading 3 back-shaped left-handed material units of circle, intermediate left-handed material unit is in 2 units relative to the left and right sides
The distance of half of inside annular radii is translated up in vertical direction, 3 left-handed material units form the array of an inverted V-shaped.
The monopole antenna of the back-shaped left-handed material unit of the load circle, using the FR4 dielectric-slab with a thickness of 1.2mm, ruler
Very little is 25mmX30mm；The size of left-handed material unit is 5mmX5mm.
Multiple adjusting is carried out to antenna by simulation software to test, and obtains the return loss of the antenna loading difference number
Comparison diagram is as shown in Fig. 4, and as seen from the figure, S11 < -10dB frequency range when antenna does not load left-handed material is 5.27GHz-
7.9GHz, resonance point 5.6GHz, the S11 value at resonance point is -31dB, while there are one near 6.5GHz
S11 value is the resonance point of -21dB；The Antenna Operation bandwidth for loading a back-shaped left-handed material unit of circle is 5.59GHz-
8.2GHz, it is whole to go to high-frequency mobile 300MHz nearly than not loading left-handed material, 5.8GHz is moved on resonance point, herein
S11 value is -29dB, loads the bandwidth and resonance of one left-handed material of bandwidth and load of the antenna of two left-handed material units
Point is almost consistent, the difference is that it obtains more good impedance matching at resonance point, S11 value is -42dB herein；When
When the number of left-handed material unit is loaded into three, the value at the bandwidth of operation and resonance point and resonance point of Antenna Operation is presented
Slight downward trend.Generally speaking, load left-handed material does not almost impact the bandwidth of antenna.
Antenna loads the directional diagram comparison diagram of different numbers as shown in Fig. 5 at 5.6GHz, and wherein Fig. 5 (a) is to be somebody's turn to do
The face the xoz directional diagram of antenna, Fig. 5 (b) are the face the yoz directional diagram of the antenna.During analysis aerial radiation,
Each component is influenced caused by antenna integral radiation, and this section is described by the way of two components of co-polarization and cross polarization
The directional diagram of antenna.In Fig. 5 (a), the gain of the face antenna xoz co-polarization is increased in left-handed material unit number by 0
During 3, maximum value is respectively 2.23dB, 2.75dB, 3.45dB, 3.21dB；In Fig. 5 (b), the face antenna yoz
The gain of co-polarization during left-handed material unit number increases to 3 by 0, maximum value be respectively 1.98dB,
2.45dB,2.97dB,2.78dB.It follows that the increase of ring work shape left-handed material unit is so that the gain of antenna is mentioned
It rises, but when load counts to three, due to matching, so that the radiation of antenna receives certain obstruction, therefore, Wo Menxuan
Select two ring work shape left-handed material units of load near antenna near-field parasitic element.And by the face xoz and yoz
The paired observation of face directional diagram, it has been found that the face the xoz cross polarization of antenna is minimum, and radiation is almost unaffected, but
The cross polarization in the face yoz is not obviously much smaller than co-polarization, still to be improved.
The radiation efficiency of antenna is as shown in fig. 6, as can be seen from Figure, with the number of the ring work shape left-handed material of load
Increase, the gain of antenna constantly increasing so that ascendant trend is presented in the radiation efficiency of antenna, though the wave in working frequency range
It moves different, but good radiation all may be implemented 88% or more.
Claims (4)
1. the monopole antenna of the back-shaped left-handed material unit of load circle, it is characterised in that: the monopole antenna is planar structure, packet
It includes: dielectric-slab (1), co-planar waveguide (2), semi-circular radiation patch (3) and arc-shaped micro-strip line (4)；Co-planar waveguide for feed
(2) one end of feeder line (20) is connect with the center of semi-circular radiation patch (3), and arc-shaped micro-strip line (4) is located at semi-circular
The surface of radiation patch (3) is the near field resonance parasitic element of semi-circular radiator；In semi-circular radiation patch (3) and arc
The array (5) of circular ring shape left-handed material unit composition is printed between shaped microstrip line (4)；Left-handed material cell array (5) it is every
A unit includes dielectric-slab (9) and the back-shaped patch of circle (10) being printed on dielectric-slab (9)；The back-shaped patch (10) of circle is outer by two
Portion's semicircle (6,6 '), two internal semicircles (7,7 ') and a microstrip line (8) for crossing the center of circle are constituted；Two external semicircles (6,6 ')
It is arranged above and below, it is in left-right situs that two internal semicircles (7,7 '), which have rotated 90 ° around the center of circle compared to external semicircle,.
2. the monopole antenna of the back-shaped left-handed material unit of load circle according to claim 1, it is characterised in that: the antenna can
By adjusting arc parasitic element, just can realize good impedance matching, the ruler of near field resonance parasitic element with driving unit
The very little size much larger than driving unit, so that arc parasitic element is the major radiator of antenna.
3. the monopole antenna of the back-shaped left-handed material unit of load circle according to claim 1, it is characterised in that: in semi-circular
The array (5) that the back-shaped left-handed material unit of the circle printed between radiation patch (3) and arc-shaped micro-strip line (4) is constituted is justified back by 3
Shape left-handed material unit is constituted, and intermediate left-handed material unit is upward in 2 unit vertical direction relative to the left and right sides
The distance of half of inside annular radii is translated, 3 left-handed material units form the array of an inverted V-shaped.
4. the monopole antenna of the back-shaped left-handed material unit of load circle according to claim 1, it is characterised in that: use thickness
For the FR4 dielectric-slab of 1.2mm, having a size of 25mmX30mm；The size of left-handed material unit is 5mmX5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910000712.6A CN109509977B (en) | 2019-01-02 | 2019-01-02 | Monopole antenna loaded with round-loop left-handed material unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910000712.6A CN109509977B (en) | 2019-01-02 | 2019-01-02 | Monopole antenna loaded with round-loop left-handed material unit |
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| CN109509977A true CN109509977A (en) | 2019-03-22 |
| CN109509977B CN109509977B (en) | 2023-08-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113258279A (en) * | 2021-05-12 | 2021-08-13 | 福州大学 | 5G full-network-through miniaturized omnidirectional antenna based on metamaterial loading |
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| CN113258279A (en) * | 2021-05-12 | 2021-08-13 | 福州大学 | 5G full-network-through miniaturized omnidirectional antenna based on metamaterial loading |
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| CN109509977B (en) | 2023-08-08 |
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