CN107959112A - A kind of cupulate super wide band plane single pole sub antenna with ladder open-circuit structure floor - Google Patents
A kind of cupulate super wide band plane single pole sub antenna with ladder open-circuit structure floor Download PDFInfo
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- CN107959112A CN107959112A CN201711398646.XA CN201711398646A CN107959112A CN 107959112 A CN107959112 A CN 107959112A CN 201711398646 A CN201711398646 A CN 201711398646A CN 107959112 A CN107959112 A CN 107959112A
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- 238000004891 communication Methods 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 9
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Classifications
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
Abstract
The invention discloses a kind of cupulate super wide band plane single pole sub antenna with ladder open-circuit structure floor, is made of medium substrate, the cupulate feed terminal, coplanar waveguide feeder line, ladder open-circuit structure floor and the external coaxial fitting that are printed on medium substrate.The lateral dimension of cupulate feed terminal from top to bottom is gradually reduced, and so as to form the radiation zone of different frequency, antenna is had ultra wide band characteristic.Using ladder open-circuit structure floor antenna can be made to produce resonance at low frequency, reduce the design size of antenna, the upper end on ladder open-circuit structure floor can further adjust impedance matching using hierarchic structure, and the impedance bandwidth that further broadening antenna is capable of in the processing of circular arc corner cut is carried out to the rectangle floor of ladder open-circuit structure floor lower end.This Antenna Operation frequency range is 2.9GHz~13GHz, and design size is 20mm × 20mm, and radiation characteristic and gain characteristic are good, suitable for super broad band radio communication system.
Description
Technical field
The present invention relates to radio antenna technical field, and in particular to a kind of cupulate with ladder open-circuit structure floor
Super wide band plane single pole sub antenna, suitable for super broad band radio communication system.
Background technology
With the fast development of wireless communication technique, it is desirable to which wireless communication system has wider bandwidth and higher communication
Frequency, original communication frequency domain can not meet demands.Super-broadband tech has the characteristics that large capacity, high-speed, can be useful
In the transmission of closely high-capacity and high-speed rate and radar detection, contradiction and problem that Modern Communication System faces can effectively solve the problem that.
And flat plane antenna have the advantages that it is easy of integration, disclosure satisfy that ultra-wideband communication system miniaturization demand.The antenna of early stage in order to
Realize wider impedance bandwidth, cause the overall dimensions of antenna larger, in order to make ultra-wideband antenna easy to integrated, it is necessary to design
The antenna that size is smaller and impedance bandwidth is wider, this makes research focus be turned to from spread bandwidth on multi-functional, Miniaturization Design.It is super
Broadband planar slot antenna is that a wider gap is opened on floor, and gap structure is generally using approximate ellipsoidal or approximate square
Shape gap, radiation is similar with the design of monopole antenna with feed section, and coplanar wave guide feedback is combined with wide gap, using spy
Different geometrical combination structure, which adjusts impedance matching, can obtain wider impedance bandwidth, can also be realized by special construction design
Trap characteristic.Super wide band plane single pole sub antenna is relatively simple for structure using relatively broad, can be obtained by certain design
Wider impedance bandwidth and omnidirectional radiation characteristic.Plane single pole sub antenna is generally by radiating element, floor, feeder line and dielectric substrate
Composition, radiating element can be circular, oval, rectangle or the assembly of particular geometries, make radiating element surface electric
Stream forms resonance, obtains ultra-wideband response.The size of radiating element determines the lowest operating frequency of antenna, usual radiating element
Full-size is about the corresponding quarter-wave of antenna lowest operating frequency, and radiative unit structure is optimized, can
To reduce the size of antenna and broadening impedance bandwidth.Plane single pole sub antenna radiating element, feeder line and the ground of coplanar wave guide feedback
Plate at grade, can make the overall structure of antenna more compact, be easy to integrate with other circuits.Using rectangular aperture energy
Wider impedance bandwidth is accessed, impedance matching, such as non-patent literature 1 can be optimized by adjusting the structure snd size of current feed terminal
The circular feed of rectangular aperture, trapezoidal power feed, the square feed ultra-wideband antenna in polygon gap are disclosed, gap structure uses rectangle
Or polygon gap structure, feed element is using circular or trapezoidal, and by coplanar wave guide feedback, three kinds of antenna impedance bandwidth are all covered
Lid ultra wide band frequency, but design size is 40mm × 30mm, and size is larger.The structure of rational design monopole can be with
Wider impedance bandwidth is obtained, such as non-patent literature 2 discloses a kind of fan-shaped printing ultra-wideband antenna, by fan beam list
Member, rectangle floor and coplanar wave guide feedback line composition, adjusting the size of sector makes sector structure top margin to base form different frequencies
The radiation zone of rate, so as to obtain ultra wide band characteristic, the design size of the antenna is 35mm × 30mm.Cut based on electric current incision principle
Except the part that radiating element electric current is fainter, antenna surface current convergence can be made attached in radiating element lower edge and feeder
Closely, so that the impedance bandwidth of broadening antenna, such as non-patent literature 3 disclose three kinds of Novel ultra wide band plane single pole sub antennas,
It is micro- to electric current in radiating element and floor by rectangle coplanar wave guide feedback using rectangle, hexagon and pentagon radiating element
Weak part has carried out removal procedure, and the bandwidth and size for making antenna are further improved, and the design size of the antenna is
25mm × 28mm, overall dimensions are still larger.Therefore, needed between the bandwidth and design size of antenna there are intrinsic contradiction
Further to optimize the structure on radiating element and floor, make antenna meet further to reduce design ruler while ultra wide band characteristic
It is very little.
Citation list
Non-patent literature
Non-patent literature 1：Le Yongbo, prints the design and research of slot antenna, Harbin Engineering University's master's degree opinion
Text, 2012:21-33.
Non-patent literature 2：Wang Chen, the research of multiband/broadband/circular polarisation printed antenna and array, Xi'an electronic section
Skill University Ph.D. Dissertation, 2013:41-44.
Non-patent literature 3：Wang Lingmin, the research and design of miniaturized planar ultra-wideband antenna, Jilin University's master's degree
Paper, 2015:13-18.
The content of the invention
The object of the present invention is to provide a kind of cupulate super wide band plane single pole sub antenna with ladder open-circuit structure floor,
Ultra wide band, omnidirectional radiation, gain stabilization, size are smaller, easy to be integrated in radio circuit, meet super broad band radio communication system
Demand.
The technical scheme is that：A kind of cupulate super wide band plane monopole day with ladder open-circuit structure floor
Line, is opened by medium substrate (1), the cupulate feed terminal (2) being printed on medium substrate (1), coplanar waveguide feeder line (3), ladder
Line structure floor (4) and external coaxial fitting (5) are formed, it is characterised in that：
A. the cupulate feed terminal (2) is cup shaped metal patch, is composed of a semicircular ring and a sector,
The center of circle O of semicircular ring1On medium substrate (1) central shaft, sector is located at the inside of semicircular ring, fan-shaped center of circle O2Positioned at altogether
Face waveguide feeder (3) upper end center position, fan-shaped both ends are located in the outer circumference of semicircular ring, cupulate feed terminal (2)
Lower end is connected with coplanar waveguide feeder line (3) upper end；
B. the rectangle conduction band that the coplanar waveguide feeder line (3) is 50 Ω for one section of characteristic impedance, coplanar waveguide feeder line (3)
Upper end be connected with cupulate feed terminal (2) lower end, the external coaxial fitting in lower end (5) of coplanar waveguide feeder line (3)；
C. the ladder open-circuit structure floor (4) is made of rectangle floor, extension conduction band and hierarchic structure, rectangle floor
Positioned at medium substrate lower end, with O1For the center of circle, it is R to draw one section of radius4Circular arc, to rectangle floor by cupulate feed terminal (2)
Both ends carry out corner cut processing, and hierarchic structure is located at the upper end of medium substrate, and hierarchic structure is superimposed by three various sizes of rectangles
Form, extension conduction band is located at medium substrate both sides, and rectangle floor is connected with hierarchic structure by extending conduction band, ladder open circuit knot
Structure floor (4) is symmetrical with coplanar waveguide feeder line (3) both sides；
D. the coaxial fitting (5) is located on the central shaft of medium substrate (1) lower end, coaxial fitting (5) respectively with it is coplanar
Waveguide feeder (3) is connected with two lower edges on ladder open-circuit structure floor (4).
The cupulate feed terminal (2) is cup shaped metal patch, is composed of a semicircular ring and a sector, half
The center of circle O of annulus1On medium substrate (1) central shaft, the center of circle O of semicircular ring1Distance to medium substrate (1) lower edge is
R3+L2, the internal diameter R of semicircular ring2For 4.1mm~4.5mm, the outside diameter R of semicircular ring3For 5.3mm~5.7mm, sector is positioned at annulus
Inside, fan-shaped center of circle O2Positioned at coplanar waveguide feeder line (3) upper end center position, O2Distance L away from medium substrate lower end2For
3.1mm~3.5mm, fan-shaped both ends are located in the outer circumference of semicircular ring, fan-shaped radius R1It is fan-shaped for 5.4mm~5.9mm
Angle, θ be 115 °~125 °.
The rectangle conduction band length L that characteristic impedance in the coplanar waveguide feeder line (3) is 50 Ω2For 3.1mm~
3.5mm, width W2For 2.2mm~2.6mm.
The ladder open-circuit structure floor (4) is made of rectangle floor, extension conduction band and hierarchic structure, and rectangle floor is wide
Spend W1For 8mm~8.5mm, length L1For 3.2mm~3.6mm, corner cut arc radius R4For 5.7mm~6mm, the long L of extension conduction band3
For 9.8mm~11.1mm, width W3For 0.8mm~1.3mm, hierarchic structure is formed by stacking by three various sizes of rectangles, on
The long L of size of rectangle4For 4.3mm~4.6mm, wide W4For 6.7mm~7.2mm, the long L of size of middle rectangle5For 0.7mm~1mm,
Wide W5For 4.6mm~5mm, the long L of size of lower rectangle6For 0.7mm~1mm, wide W6For 3.4mm~3.8mm.
Effect of the invention is that：The present invention is with devising the novel cupulate feed terminal of structure and ladder open-circuit structure
Plate.The lateral dimension of cupulate feed terminal from top to bottom is gradually reduced, and so as to form the radiation zone of different frequency, has antenna
There is a ultra wide band characteristic, the frequency band of antenna can be made to high frequency direction broadening by adjusting the fan-shaped size in cupulate feed terminal.Using
Ladder open-circuit structure floor can make antenna produce resonance at low frequency, reduce the design size of antenna, while can also adjust day
The impedance matching property of line medium-high frequency, the upper end on ladder open-circuit structure floor can further adjust impedance using hierarchic structure
Match somebody with somebody, the rectangle floor progress circular arc corner cut processing to ladder open-circuit structure floor lower end can make antenna surface current convergence in spoke
Penetrate near unit lower edge and feeder, the impedance bandwidth of further broadening antenna.The present invention have low section, size it is small,
Easy to process, simple in structure, the features such as being easily integrated, working frequency range are 2.9GHz~13GHz, design size for 20mm ×
20mm, radiation characteristic and gain characteristic are good, suitable for super broad band radio communication system.
Brief description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present invention.
Fig. 2 is actual measurement reflectance factor of embodiment of the present invention S11Curve.
Fig. 3 is E face and H surface radiation directional diagram of the embodiment of the present invention when frequency is 3GHz.
Fig. 4 is E face and H surface radiation directional diagram of the embodiment of the present invention when frequency is 6GHz.
Fig. 5 is E face and H surface radiation directional diagram of the embodiment of the present invention when frequency is 9GHz.
Fig. 6 is E face and H surface radiation directional diagram of the embodiment of the present invention when frequency is 11GHz.
Fig. 7 is peak gain figure of the embodiment of the present invention in different frequency point.
Embodiment
The present invention embodiment be：A kind of as shown in Figure 1, cupulate ultra wide band with ladder open-circuit structure floor
Plane single pole sub antenna, is presented by medium substrate (1), the cupulate feed terminal (2) being printed on medium substrate (1), co-planar waveguide
Line (3), ladder open-circuit structure floor (4) and external coaxial fitting (5) are formed, it is characterised in that：The cupulate feed is whole
It is cup shaped metal patch to hold (2), is composed of a semicircular ring and a sector, the center of circle O of semicircular ring1Positioned at medium substrate
(1) on central shaft, sector is located at the inside of semicircular ring, fan-shaped center of circle O2Positioned at coplanar waveguide feeder line (3) upper end center position,
Fan-shaped both ends are located in the outer circumference of semicircular ring, lower end and coplanar waveguide feeder line (3) upper end phase of cupulate feed terminal (2)
Connection；The coplanar waveguide feeder line (3) for one section of characteristic impedance be 50 Ω rectangle conduction band, coplanar waveguide feeder line (3) it is upper
End is connected with cupulate feed terminal (2) lower end, the external coaxial fitting in lower end (5) of coplanar waveguide feeder line (3)；The ladder
Open-circuit structure floor (4) is made of rectangle floor, extension conduction band and hierarchic structure, and rectangle floor is located at medium substrate lower end, with
O1For the center of circle, it is R to draw one section of radius4Circular arc, to rectangle floor by cupulate feed terminal (2) both ends carry out corner cut processing, rank
Terraced structure is located at the upper end of medium substrate, and hierarchic structure is formed by stacking by three various sizes of rectangles, and extension conduction band is positioned at Jie
Matter substrate both sides, rectangle floor are connected with hierarchic structure by extending conduction band, and ladder open-circuit structure floor (4) is symmetrical with coplanar
Waveguide feeder (3) both sides；The coaxial fitting (5) is located on the central shaft of medium substrate (1) lower end, and coaxial fitting (5) is respectively
It is connected with two lower edges on coplanar waveguide feeder line (3) and ladder open-circuit structure floor (4).
The cupulate feed terminal (2) is cup shaped metal patch, is composed of a semicircular ring and a sector, half
The center of circle O of annulus1On medium substrate (1) central shaft, the center of circle O of semicircular ring1Distance to medium substrate (1) lower edge is
R3+L2, the internal diameter R of semicircular ring2For 4.1mm~4.5mm, the outside diameter R of semicircular ring3For 5.3mm~5.7mm, sector is positioned at annulus
Inside, fan-shaped center of circle O2Positioned at coplanar waveguide feeder line (3) upper end center position, O2Distance L away from medium substrate lower end2For
3.1mm~3.5mm, fan-shaped both ends are located in the outer circumference of semicircular ring, fan-shaped radius R1It is fan-shaped for 5.4mm~5.9mm
Angle, θ be 115 °~125 °.
The rectangle conduction band length L that characteristic impedance in the coplanar waveguide feeder line (3) is 50 Ω2For 3.1mm~
3.5mm, width W2For 2.2mm~2.6mm.
The ladder open-circuit structure floor (4) is made of rectangle floor, extension conduction band and hierarchic structure, and rectangle floor is wide
Spend W1For 8mm~8.5mm, length L1For 3.2mm~3.6mm, corner cut arc radius R4For 5.7mm~6mm, the long L of extension conduction band3
For 9.8mm~11.1mm, width W3For 0.8mm~1.3mm, hierarchic structure is formed by stacking by three various sizes of rectangles, on
The long L of size of rectangle4For 4.3mm~4.6mm, wide W4For 6.7mm~7.2mm, the long L of size of middle rectangle5For 0.7mm~1mm,
Wide W5For 4.6mm~5mm, the long L of size of lower rectangle6For 0.7mm~1mm, wide W6For 3.4mm~3.8mm.
Embodiment：Specific manufacturing process is as described in embodiment.Select FR4 epoxy resin medium substrates, permittivity εr
=4.4, thickness h=1.6mm, metal layer thickness 0.04mm, coaxial fitting uses standard sub-miniature A connector.The long L=of medium substrate
20mm, width W=20mm.The lateral dimension of cupulate feed terminal from top to bottom is gradually reduced, so as to form the spoke of different frequency
Band is penetrated, makes antenna that there is ultra wide band characteristic, the frequency band of antenna can be made to high frequency by adjusting the fan-shaped size in cupulate feed terminal
Direction broadening.Cupulate feed terminal is composed of a semicircular ring and a sector, the internal diameter R of semicircular ring2For 4.3mm, half
The outside diameter R of annulus3For 5.5mm, sector is located at the inside of annulus, fan-shaped center of circle O2Positioned at coplanar waveguide feeder line upper end center position
Put, O2Distance L away from medium substrate bottom2For 3.3mm, fan-shaped both ends are located on the outside of semicircular ring, fan-shaped radius R1For
5.6mm, fan-shaped angle, θ are 120 °.The rectangle conduction band length L that characteristic impedance in coplanar waveguide feeder line is 50 Ω2For
3.3mm, width W2For 2.5mm, the gap g between rectangle conduction band and floor is 0.45mm.Using ladder open-circuit structure floor energy
Antenna is produced resonance at low frequency, reduce the design size of antenna, while can also adjust the impedance matching of antenna medium-high frequency
Characteristic, the upper end on ladder open-circuit structure floor can further adjust impedance matching using hierarchic structure, to ladder open-circuit structure
The rectangle floor of floor lower end, which carries out the processing of circular arc corner cut, can make antenna surface current convergence in radiating element lower edge and day
Near line feeder line, the impedance bandwidth of further broadening antenna.Ladder open-circuit structure floor is by rectangle floor, extension conduction band and ladder
Structure composition, rectangle floor width W1For 8.3mm, length L1For 3.4mm, corner cut arc radius R4For 5.9mm, extension conduction band length
L3For 10.3mm, width W3For 1.2mm, hierarchic structure is formed by stacking by three various sizes of rectangles, the long L of size of upper rectangle4
For 4.5mm, wide W4For 6.9mm, the long L of size of middle rectangle5For 0.9mm, wide W5For 4.8mm, the long L of size of lower rectangle6For
0.9mm, wide W6For 3.6mm.
Use the reflectance factor of vector network analyzer test antenna, reflectance factor S11With change curve such as Fig. 2 of frequency
It is shown, reflectance factor S11Impedance bandwidth less than -10dB is 2.9GHz~13GHz, and -10dB the impedance bandwidths of antenna are completely covered
Frequency band 3.1GHz~10.6GHz as defined in radio ultra wide band system, forms multiple resonance points in frequency band, generates ultra wide band sound
Should, resonance point is located at 3.1GHz, 6.7GHz, 9.4GHz respectively, corresponding resonance peak intensity respectively -26.8dB, -
46.6dB, -34.2dB, disclosure satisfy that the work requirements of antenna.
E face of the antenna at tetra- Frequency points of 3GHz, 6GHz, 9GHz, 11GHz and H surface radiation directional diagrams are tested,
The radiation characteristic of antenna is examined, actual measurement directional diagram is as shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6.It can be seen from the figure that aerial radiation side
To figure in the E faces approximation figure of eight, in H faces, low-frequency range directional diagram is approximate circle, the directional diagram approximate ellipse in high-frequency range
Shape.In 11GHz, there is certain distortion in antenna pattern, but is on the whole similar with intermediate frequency, and main cause is antenna
The influence of higher mode and non-equiphase distributed electric field in gap.Therefore, which is omnidirectional in whole frequency range, and radiation is special
Property is relatively stable, and the lobe of antenna is wider, embodies ultra wide band characteristic, and has preferable omni-directional, fully meets ultra-wide
Demand with communication system.
The peak gain curve of antenna different frequency point in frequency band is tested, as shown in fig. 7, test result shows, peak value
Gain is 1.89dBi, 6GHz 6.4dBi, 9GHz 7.8dBi, 11GHz 6.1dBi in 3GHz, and peak antenna gain is with frequency
The change of rate is integrally in rising trend, and peak gain the reason for downward trend, decline occurs in the change of high band and is due to
Antenna radiation pattern occurs caused by distortion in high band, and the excursion of peak gain is 1.88dBi~8dBi, excursion ratio
Relatively rationally, illustrate that antenna has good gain performance in working frequency range.
Claims (4)
1. a kind of cupulate super wide band plane single pole sub antenna with ladder open-circuit structure floor, by medium substrate (1), is printed on
Cupulate feed terminal (2), coplanar waveguide feeder line (3), ladder open-circuit structure floor (4) on medium substrate (1) and external same
Shaft coupling (5) is formed, it is characterised in that：
A. the cupulate feed terminal (2) is cup shaped metal patch, is composed of a semicircular ring and a sector, semicircle
The center of circle O of ring1On medium substrate (1) central shaft, sector is located at the inside of semicircular ring, fan-shaped center of circle O2Positioned at coplanar ripple
Feeder line (3) upper end center position is led, fan-shaped both ends are located in the outer circumference of semicircular ring, the lower end of cupulate feed terminal (2)
It is connected with coplanar waveguide feeder line (3) upper end；
B. the coplanar waveguide feeder line (3) for one section of characteristic impedance be 50 Ω rectangle conduction band, coplanar waveguide feeder line (3) it is upper
End is connected with cupulate feed terminal (2) lower end, the external coaxial fitting in lower end (5) of coplanar waveguide feeder line (3)；
C. the ladder open-circuit structure floor (4) is made of rectangle floor, extension conduction band and hierarchic structure, and rectangle floor is located at
Medium substrate lower end, with O1For the center of circle, it is R to draw one section of radius4Circular arc, to rectangle floor lean on cupulate feed terminal (2) both ends
Corner cut processing is carried out, hierarchic structure is located at the upper end of medium substrate, and hierarchic structure is formed by stacking by three various sizes of rectangles,
Extension conduction band is located at medium substrate both sides, and rectangle floor is connected with hierarchic structure by extending conduction band, ladder open-circuit structure
Plate (4) is symmetrical with coplanar waveguide feeder line (3) both sides；
D. the coaxial fitting (5) is located on the central shaft of medium substrate (1) lower end, coaxial fitting (5) respectively with co-planar waveguide
Feeder line (3) is connected with two lower edges on ladder open-circuit structure floor (4).
2. a kind of cupulate super wide band plane single pole sub antenna with ladder open-circuit structure floor according to claim 1,
It is characterized in that the cupulate feed terminal (2) is cup shaped metal patch, it is composed of a semicircular ring and a sector,
The center of circle O of semicircular ring1On medium substrate (1) central shaft, the center of circle O of semicircular ring1To the distance of medium substrate (1) lower edge
For R3+L2, the internal diameter R of semicircular ring2For 4.1mm~4.5mm, the outside diameter R of semicircular ring3For 5.3mm~5.7mm, sector is located at annulus
Inside, fan-shaped center of circle O2Positioned at coplanar waveguide feeder line (3) upper end center position, O2Distance L away from medium substrate lower end2For
3.1mm~3.5mm, fan-shaped both ends are located in the outer circumference of semicircular ring, fan-shaped radius R1It is fan-shaped for 5.4mm~5.9mm
Angle, θ be 115 °~125 °.
3. a kind of cupulate super wide band plane single pole sub antenna with ladder open-circuit structure floor according to claim 1,
It is characterized in that the rectangle conduction band length L that the characteristic impedance in the coplanar waveguide feeder line (3) is 50 Ω2For 3.1mm~
3.5mm, width W2For 2.2mm~2.6mm.
4. a kind of cupulate super wide band plane single pole sub antenna with ladder open-circuit structure floor according to claim 1,
It is characterized in that the ladder open-circuit structure floor (4) is made of rectangle floor, extension conduction band and hierarchic structure, rectangle floor
Width W1For 8mm~8.5mm, length L1For 3.2mm~3.6mm, corner cut arc radius R4For 5.7mm~6mm, extension conduction band length
L3For 9.8mm~11.1mm, width W3For 0.8mm~1.3mm, hierarchic structure is formed by stacking by three various sizes of rectangles, on
The long L of size of rectangle4For 4.3mm~4.6mm, wide W4For 6.7mm~7.2mm, the long L of size of middle rectangle5For 0.7mm~1mm,
Wide W5For 4.6mm~5mm, the long L of size of lower rectangle6For 0.7mm~1mm, wide W6For 3.4mm~3.8mm.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832277A (en) * | 2018-05-25 | 2018-11-16 | 哈尔滨工程大学 | A kind of miniature antenna of inductance load |
| CN109088164A (en) * | 2018-08-21 | 2018-12-25 | 吉林医药学院 | A kind of gear annular slot double frequency round polarized antenna |
| CN109088164B (en) * | 2018-08-21 | 2024-04-26 | 吉林医药学院 | Gear ring gap double-frequency circularly polarized antenna |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109088164A (en) * | 2018-08-21 | 2018-12-25 | 吉林医药学院 | A kind of gear annular slot double frequency round polarized antenna |
| CN109088164B (en) * | 2018-08-21 | 2024-04-26 | 吉林医药学院 | Gear ring gap double-frequency circularly polarized antenna |
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